TWI300514B - - Google Patents

Download PDF

Info

Publication number
TWI300514B
TWI300514B TW90132340A TW90132340A TWI300514B TW I300514 B TWI300514 B TW I300514B TW 90132340 A TW90132340 A TW 90132340A TW 90132340 A TW90132340 A TW 90132340A TW I300514 B TWI300514 B TW I300514B
Authority
TW
Taiwan
Prior art keywords
exposure
substrate
upstream
heating
processed
Prior art date
Application number
TW90132340A
Other languages
Chinese (zh)
Inventor
Kenji Kawano
Shinichi Ito
Eishi Shiobara
Daisuke Kawamura
Original Assignee
Toshiba Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Kk filed Critical Toshiba Kk
Application granted granted Critical
Publication of TWI300514B publication Critical patent/TWI300514B/zh

Links

Description

13005141300514

相關申請之對照 本專利申請案係以先前之2000年12月26日的日本專利申請 案Να 2000-394354及2001年1月19日的N〇 2謝·〇11299為基礎提出 並主張其優先權,將其内容列舉如下以供參考。 發明背景 1發明的技術領域 本發明係和基板之處理裝置及處理方法相關。具體而言, 亚即,和利用塗佈膜之處理裝置、塗佈膜之加熱裝置、及其 他加熱裝置之加熱處理方法、以及光蝕刻相關之光阻圖案 形成方法相關。 2相關技術之說明 半導體裝置製造之元件區域形成及電極配線加工等上, 係使用光阻圖案。此光阻圖案一般係以下列方式形成。首先 ,在半導體晶圓上形成光阻塗佈膜後,實施被稱為預烘 (prebake)之加熱處理。此預烘之目的係在使光阻内之熔媒揮 發。其次,再對此光阻膜實施特定圖案曝光,實施複印。 隨著半導體元件之微細化,要求光蝕刻步驟具有更高之 解像度。對於此要求,使用之曝光用光源有短波長化現象。 光触刻中’廣泛地將KrF受激準分子雷射(波長·· 248 nm)當做 曝光用光源使用。 另一方面,複印圖案之感光性樹脂(光阻)材料亦隨著曝光 用光源之短波長化’正在實施被稱為化學放大型光阻之光 阻的檢討及實用化。化學放大型光阻含有會因曝光而產生 酸之酸產生劑。因曝光而產生之酸會分解樹脂(正型)、或形 -4 · 本纸張尺度適用中S @家標準(CNS) A4規格(210 X 297公爱) 一 """'- A7 B7 1300514RELATED APPLICATIONS This patent application filed and claims priority on the basis of the Japanese Patent Application No. 2000-394354, filed on Dec. 26, 2000, and N 〇 2 〇 〇 11299, January 19, 2001. The contents are listed below for reference. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus and a processing method of a substrate. Specifically, it is related to a treatment method using a coating film, a heating device for coating a film, a heat treatment method for other heating devices, and a photoresist pattern forming method related to photolithography. 2. Description of Related Art A photoresist pattern is used for element region formation, electrode wiring processing, and the like for semiconductor device manufacturing. This photoresist pattern is generally formed in the following manner. First, after a photoresist coating film is formed on a semiconductor wafer, a heat treatment called prebake is performed. The purpose of this prebaking is to volatize the flux within the photoresist. Next, a specific pattern exposure was performed on the photoresist film to perform copying. As the semiconductor element is miniaturized, the photolithography step is required to have a higher resolution. For this requirement, the light source for exposure used has a short wavelength. In the light touch, the KrF excimer laser (wavelength · 248 nm) is widely used as a light source for exposure. On the other hand, the photosensitive resin (photoresist) material of the copy pattern is also subjected to review and practical use of a photoresist called a chemical amplification type photoresist, in accordance with the short wavelength of the light source for exposure. The chemically amplified photoresist contains an acid generator which generates an acid due to exposure. The acid generated by the exposure will decompose the resin (positive type), or the shape -4 · This paper size applies to the S @家标准(CNS) A4 specification (210 X 297 public) A """'- A7 B7 1300514

五、發明説明( 成架橋(負型)。其後之顯影步騾中,即利用其對顯影液之溶 解性會變化的性質。 此化學放大型光阻雖然具有良解像性之優點,卻對環境 有負面影響。亦即,酸會和大氣中之鹼性物質產生反應而鈍 化,導致圖案形狀或解像度劣化等。為了防止此種劣化,必 須實施環境控制。一般之環境控制,係在實施光阻塗佈及顯 影等處理之塗佈顯影器内設置化學濾光器等。 另一方面,此化學放大型光阻在曝光步驟後,大多需要實 施被稱為PEB (Post Exposure Bake)(後曝烘)的加熱處理步驟。 實.施PEB之目的係在擴散曝光步騾所產生之酸。PEB處理步 騾後,將化學放大型光阻曝露於顯影液内,形成期望之光阻 圖案。 . 化學放大型光阻除了會發生前述酸之鈍化以外,尚會在 PEB處理中因酸蒸發而消失。而降低PEB處理之酸蒸發的方 法,從以前就有不同方法。例如,塗佈光阻後,使以揮發溶 劑為目的之預烘溫度比一般更高、並使PEB溫度比一般更低 ,而降低酸之蒸發的方法(「Effect of acid evaporation in Chemically Amplified resists on insoluble layer formation」Journal of Photopolymer Science and Technology Vo 1· 8, Number4 (1995) P.561-570 :以下簡稱 為公知實例1)、或以高於一般氣壓之壓力下實施PEB處理來 減少酸蒸發之方法(特開平1Γ-38644、以下簡稱為公知實例2)。 利用前述公知實例1來降低PEB時之酸蒸發量。然而,因 為係以大幅偏離最佳化溫度條件(一般條件)的條件下實施預 烘處理及PEB處理,故無法充份發揮光阻原來具有之曝光量 -5- 本纸張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)5. Description of the invention (in the form of a bridge (negative type). In the subsequent development step, the property which changes its solubility to the developer is utilized. Although the chemically amplified photoresist has the advantage of good resolution, It has a negative impact on the environment, that is, the acid reacts with the alkaline substances in the atmosphere to passivate, resulting in deterioration of the pattern shape or resolution, etc. In order to prevent such deterioration, environmental control must be implemented. General environmental control is implemented. A chemical filter or the like is provided in the coating and developing device for processing such as photoresist coating and development. On the other hand, after the exposure step, the chemically amplified photoresist is often referred to as PEB (Post Exposure Bake). The heat treatment step of the exposure. The purpose of applying PEB is to produce the acid generated by the diffusion exposure step. After the PEB treatment step, the chemical amplification type photoresist is exposed to the developer to form a desired photoresist pattern. Chemically amplified photoresists, in addition to the aforementioned acid passivation, will disappear in the PEB treatment due to acid evaporation. The method of reducing the acid evaporation of PEB treatment has different methods from the past. For example, after applying a photoresist, the pre-baking temperature for the purpose of volatilizing the solvent is higher than usual, and the PEB temperature is lower than generally, and the evaporation of the acid is lowered ("Effect of acid evaporation in Chemically Amplified resists on Insoluble layer formation" Journal of Photopolymer Science and Technology Vo 1, 8, Number 4 (1995) P.561-570: hereinafter referred to as well-known example 1), or PEB treatment at a pressure higher than normal pressure to reduce acid evaporation The method (Japanese Patent Laid-Open No. Hei-38644, hereinafter abbreviated as the known Example 2). The amount of acid evaporation at the time of PEB is reduced by the above-mentioned known example 1. However, it is carried out under conditions which greatly deviate from the optimum temperature condition (general conditions). Pre-baking treatment and PEB treatment, it is not possible to fully exert the exposure of the photoresist -5 - This paper scale is applicable to China National Standard (CNS) A4 specification (210 X 297 mm)

裝 訂Binding

1300514 A7 B7 五、發明説明(3 ) 及焦點寬裕度(安全係數)的性能。 此夕卜,PEB處理時,如圖65所示,該加熱裝置必須為可以 防止加熱時產生之氣體及微粒子附著於腔室内,才能避免 其成為產生源。此加熱裝置具有設於腔室6500之一側面的空 氣導入口 6501、及設置於和其相對之另一側面上的排氣口 6502。氣體6504會沿著灼熱板6503上之半導體晶圓W上面流過 空氣導入口 6501及排氣口 6502之間。利用此方式,可以使腔 室内產生氣流。 然而,如圖66所示,PEB時所蒸發之酸,可利用此氣流將 其.依圖中箭頭方向運至下游側,再度附著於晶圓上。因此, 相對於氣流而言,位於最上游位置之晶片、及位於其下游位 置之晶片的光阻表面濃度會有差異。所以,顯影處理後之晶 圓面内的光阻尺寸會發生誤差。 另外,在前述公知實例2中,雖然可以降低酸之蒸發,卻 無任何對策防止蒸發之酸的再度附著。因為蒸發之酸會再 度附著於半導體晶圓上,不易消除顯影處理後之晶圓面内 的光阻尺寸變動。 發明之摘要 依據本發明之第一形態,提供一種光阻層之加熱裝置,其 構成上係具有,内含内部空間之腔室、在前述腔室内支撐具 有光阻膜之被處理基板載1面並以對前述被處理基板實施 加熱為目的之加熱板、和前述載置面相對配置於腔室内部 之區隔構件、以及利用前述區隔構件將内部空間分割成第1 及第2空間且有連通第1及第2空間之複數孔且前述載置面配 -6- 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1300514 A7 發明説明 置於第1空間内而前述第2空間則配置以排出前述光阻膜產 生之洛發物為目的而形成氣流之氣流形成機構。 依據本發明之第二形態,提供一種光阻之處理方法,其構 成上係具有,在被處理基板上形成光阻膜之步驟、在腔室内 對已形成前述光阻膜之前述被處理基板進行加熱的步驟、 前述區隔構件將前述腔室分割成第丨及第2空間且有連通前 述第1及第2芝間之複數孔且前述被處理基板載置於前述第i 芝間内並在前述加熱期間經由前述區隔構件之前述複數孔 將前述被處理基板產生之蒸發物利用氣流流至前述第2空間 同.時利用氣流從前述第2空間排氣之步驟、對前述光阻膜照 射能1光線使其形成具有潛影圖案之曝光區域的曝光步驟 、以及選擇去除部份前述光阻膜並在前述被處理基板上形 成期望圖案的顯影步驟。 圖式之簡單說明 圖1係本發明實施形態相關之基板處理裝置的模式化平面 圖。 圖2係本發明第1實施形態相關之加熱裝置的模式化剖面 圖。 圖3係將曝光用遮罩複印至晶圓時所得到之圖案。 圖4係圖3之圖案的線圖案區域的放大圖。 圖5係晶圓上配置著曝光晶片時之狀態圖。 圖6係利用本發明第丨實施形態相關之加熱裝置,所獲得之 圖案複印結果是否良好的晶圓面内分佈。 圖7係本發明第2實施形態相關之加熱裝置的模式化剖面1300514 A7 B7 V. Description of invention (3) and performance of focus margin (safety factor). Further, in the PEB treatment, as shown in Fig. 65, the heating means must be such that gas and fine particles generated during heating can be prevented from adhering to the chamber to prevent it from being a source. The heating device has an air introduction port 6501 provided on one side of the chamber 6500 and an exhaust port 6502 provided on the other side opposite thereto. The gas 6504 flows between the air introduction port 6501 and the exhaust port 6502 along the semiconductor wafer W on the glow plate 6503. In this way, airflow can be generated in the chamber. However, as shown in Fig. 66, the acid evaporated in the PEB can be transported to the downstream side by the air flow in the direction of the arrow, and attached to the wafer again. Therefore, the wafer surface concentration of the wafer located at the most upstream position and the wafer located at the downstream position may differ with respect to the gas flow. Therefore, an error occurs in the size of the photoresist in the crystal face after the development process. Further, in the above-mentioned known example 2, although the evaporation of the acid can be reduced, there is no countermeasure against the re-adhesion of the evaporated acid. Since the evaporated acid adheres to the semiconductor wafer again, it is difficult to eliminate the dimensional change of the photoresist in the wafer surface after the development process. SUMMARY OF THE INVENTION According to a first aspect of the present invention, a heating device for a photoresist layer is provided, comprising: a chamber containing an internal space; and a substrate on which a substrate having a photoresist film is supported in the chamber a heating plate for heating the substrate to be processed, a partition member disposed to face the chamber on the mounting surface, and a partition space to divide the internal space into the first and second spaces by the partition member. Connect the plurality of holes in the first and second spaces and the above-mentioned mounting surface is equipped with -6- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 1300514 A7 Description of the invention is placed in the first space and the foregoing The space 2 is provided with an air flow forming mechanism for forming a gas flow for the purpose of discharging the hair of the photoresist film. According to a second aspect of the present invention, there is provided a method of processing a photoresist, comprising the steps of: forming a photoresist film on a substrate to be processed, and performing the substrate on which the photoresist film has been formed in the chamber; a step of heating, the partitioning member divides the chamber into a second space and a second space, and has a plurality of holes communicating between the first and second chambers, and the substrate to be processed is placed in the i-th chamber and is During the heating period, the evaporating material generated by the substrate to be processed is flowed through the plurality of holes of the partition member to the second space, and the gas is leaked from the second space by the gas flow. An exposure step capable of forming light to form an exposed region having a latent image pattern, and a developing step of selecting a portion of the aforementioned photoresist film and forming a desired pattern on the substrate to be processed. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic plan view of a substrate processing apparatus according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional view showing a heating apparatus according to a first embodiment of the present invention. Fig. 3 is a pattern obtained when a mask for exposure is copied onto a wafer. 4 is an enlarged view of a line pattern area of the pattern of FIG. Fig. 5 is a view showing a state in which a wafer is exposed on a wafer. Fig. 6 is a diagram showing the in-plane distribution of the wafer obtained by the heating device according to the embodiment of the present invention. Figure 7 is a schematic sectional view of a heating device according to a second embodiment of the present invention;

13005141300514

圖 圖8祕乳孔率及蒸發物質之再度附著的關係圖,圖犯係 吸附板及均熱板之距_隙)及酸之蒸發距離的關係圖。 圖9係本發明第3實施形態相關之加熱裝置的模式化刮面 圖 圖。 圖1〇係本發明第4實施形態相關之加熱裝置的模式化剑面 圖 圖11係本發明第5實施形態相關之加熱裝 置的模式化剖面 圖 .圖12係本發明第6實施形態相關之加熱裝置 的模式化剖面 圖13係板構件圖。 圖 圖14係本發明第7實施形態相關之加熱裝置的模式化剖面 圖15係本發明第8實施形態相關之加熱裝置的模式化剖面 圖。 圖16係本發明第9實施形態相關之加熱裝置的才莫式化剖面 圖 〇 圖17係本發明第10實施形態相關之加熱裝置的模式化剖面 圖 圖18係PEB中之乳流方向反各曝光晶片之位置關係圖。 圖19係本發明第11貫施形態相關之基板處理方法的曝光量 及光阻線尺寸關係圖。 圖20係加熱單元群之配置及晶圓搬送臂之模式化位置關 -8 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1300514 A7 B7 五、發明説明(6 ) 係圖。 圖21係將晶圓搬運至PEB用加熱裝置之狀態下從上向下俯 視圖。 圖22係加熱單元群之配置及晶圓搬運臂的模式化位置關 係圖。 圖23係將晶圓搬運至PEB用加熱裝置之狀態下從上向下俯 視圖。 圖24係將晶圓搬運至PEB用加熱裝置之狀態下從上向下俯 視圖。 .圖25係本發明第12實施形態之光阻圖案形成方法中PEB處 理溫度及光阻線尺寸之關係圖。 圖26係氣流方向及曝光晶片之位置關係圖。 圖27係氣流方向及曝光晶片之位置關係圖。 圖28係曝光區域及PEB時之氣流的模式化相對位置關係圖。 圖29係曝光量D時之晶片内位置X及顯影後光阻圖案(線尺 寸)的模式化關係圖。 圖30係曝光量D附近之圖案尺寸及曝光量的關係圖。 圖31係晶片之位置X及曝光量的模式化關係圖。 圖32係晶片之位置X及掃描速度的模式化關係圖。 圖33係逐步掃描方式之投影曝光裝置的構成圖。 圖34係照射量調整用ND濾光器3303之模式化透過率分布圖。 圖35係部份曝光區域之模式圖。 圖36係曝光量及線尺寸之關係圖。 圖37係以曝光量調整為目的之光照射系統的模式圖。 • 9 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1300514 A7 B7 五、發明説明(7 ) 圖38係晶圓上形成之曝光區域群3801及修正時照射之光照 射區域3802的模式化位置關係圖。 圖39係氣流方向及曝光晶片之位置關係圖。 圖40係修正時照射之照射量、以及最外緣(最上游)曝光區 域及内緣(下游)曝光區域間之尺寸差異的關係圖。 圖41係本發明第17實施形態相關之基板處理方法的其他實 施實例圖。 圖42係圖41所示實施實例之晶片内位置X及照射能量的關 係圖。 圖43係晶圓上配置著曝光晶片時之狀態圖。 圖44係氣流方向及曝光晶片之位置關係圖。 圖45係晶圓上配置著曝光晶片時之狀態圖。 圖46係未曝光區域之面積及圖案尺寸變動修正上必要之 EB照射量的關係圖。 圖47A、B係顯影液供應方法之模式圖。 圖48係曝光量及圖案尺寸之關係圖。 圖49係顯影液之吐出量及圖案尺寸的關係圖。 圖50係藥液供應噴嘴的位置圖。 圖51係噴嘴位置及顯影液之吐出量的關係圖。 圖52係晶圓及噴嘴間之距離(圖中標記為間隙)以及圖案尺 寸之關係圖。 · 圖53係位置及間隙之關係圖。 圖54係噴嘴掃描速度及圖案尺寸之關係圖。 圖55係噴嘴位置及掃描速度之關係圖。 -10- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514Fig. 8 is a graph showing the relationship between the secret cell porosity and the re-adhesion of the evaporated material, the relationship between the adsorption plate and the soaking plate and the evaporation distance of the acid. Fig. 9 is a schematic plan view showing a heating device according to a third embodiment of the present invention. Fig. 1 is a schematic cross-sectional view of a heating apparatus according to a fourth embodiment of the present invention. Fig. 11 is a schematic cross-sectional view showing a heating apparatus according to a fifth embodiment of the present invention. Fig. 12 is a perspective view of a sixth embodiment of the present invention. Schematic cross-sectional view of the heating device 13 is a diagram of the plate member. Fig. 14 is a schematic cross-sectional view of a heating apparatus according to a seventh embodiment of the present invention. Fig. 15 is a schematic cross-sectional view showing a heating apparatus according to an eighth embodiment of the present invention. Figure 16 is a cross-sectional view showing a heating device according to a ninth embodiment of the present invention. Figure 17 is a schematic cross-sectional view showing a heating device according to a tenth embodiment of the present invention. The positional relationship diagram of the exposed wafer. Fig. 19 is a view showing the relationship between the exposure amount and the size of the photoresist line in the substrate processing method according to the eleventh aspect of the present invention. Figure 20 shows the arrangement of the heating unit group and the pattern position of the wafer transfer arm. - 8 - This paper scale applies to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 1300514 A7 B7 V. Description of the invention (6) Figure. Fig. 21 is a top view from the top to the bottom of the state in which the wafer is transported to the heating device for PEB. Fig. 22 is a diagram showing the arrangement of the heating unit group and the pattern positional relationship of the wafer transfer arm. Fig. 23 is a top view from the top to the bottom of the state in which the wafer is transported to the heating device for PEB. Fig. 24 is a top plan view showing the state in which the wafer is transported to the heating device for PEB. Fig. 25 is a view showing the relationship between the PEB treatment temperature and the size of the photoresist line in the method for forming a photoresist pattern according to the twelfth embodiment of the present invention. Figure 26 is a diagram showing the positional relationship of the airflow direction and the exposed wafer. Figure 27 is a diagram showing the positional relationship of the airflow direction and the exposed wafer. Fig. 28 is a diagram showing the pattern relative positional relationship of the airflow in the exposure region and the PEB. Fig. 29 is a schematic diagram showing the pattern relationship between the in-wafer position X and the developed photoresist pattern (line size) at the exposure amount D. Fig. 30 is a graph showing the relationship between the pattern size and the exposure amount in the vicinity of the exposure amount D. Figure 31 is a pattern diagram of the position X of the wafer and the amount of exposure. Figure 32 is a pattern diagram of the position X of the wafer and the scanning speed. Figure 33 is a view showing the configuration of a projection exposure apparatus of a step-by-step scanning method. Fig. 34 is a schematic transmission rate distribution diagram of the ND filter 3303 for irradiation amount adjustment. Figure 35 is a schematic view of a portion of the exposed area. Figure 36 is a graph showing the relationship between exposure amount and line size. Fig. 37 is a schematic view showing a light irradiation system for the purpose of adjusting the exposure amount. • 9 - This paper scale applies to China National Standard (CNS) A4 specification (210X 297 mm) 1300514 A7 B7 V. Invention Description (7) Figure 38 shows the exposure area group 3801 formed on the wafer and the illumination of the illumination during correction A patterned positional relationship diagram for region 3802. Figure 39 is a diagram showing the relationship between the direction of the gas flow and the position of the exposed wafer. Fig. 40 is a graph showing the relationship between the amount of irradiation at the time of correction and the difference in size between the outermost (uppermost) exposure area and the inner (downstream) exposure area. Figure 41 is a view showing another embodiment of a substrate processing method according to a seventeenth embodiment of the present invention. Figure 42 is a diagram showing the relationship between the position X in the wafer and the irradiation energy of the embodiment shown in Figure 41. Fig. 43 is a view showing a state in which a wafer is exposed on a wafer. Figure 44 is a diagram showing the relationship between the direction of the gas flow and the position of the exposed wafer. Fig. 45 is a view showing a state in which an exposed wafer is placed on a wafer. Fig. 46 is a graph showing the relationship between the area of the unexposed area and the amount of EB irradiation necessary for the correction of the change in the pattern size. 47A and 47B are schematic views showing a method of supplying a developer. Figure 48 is a graph showing the relationship between the amount of exposure and the size of the pattern. Fig. 49 is a graph showing the relationship between the discharge amount of the developer and the pattern size. Figure 50 is a positional view of the liquid supply nozzle. Fig. 51 is a graph showing the relationship between the position of the nozzle and the discharge amount of the developer. Figure 52 is a plot of the distance between the wafer and the nozzle (marked as a gap in the figure) and the pattern size. · Figure 53 is a diagram of the relationship between position and clearance. Figure 54 is a graph showing the relationship between the nozzle scanning speed and the pattern size. Figure 55 is a graph showing the relationship between the nozzle position and the scanning speed. -10- This paper scale applies to China National Standard (CNS) A4 specification (210 X 297 mm) 1300514

圖56A、B係利用氣流吹出噴嘴吹出氣流時的模式圖。 圖57A、B、及C係說明顯影液之薄膜化。 圖58係吹出流量及圖案尺寸之關係圖。 圖59A、B係利用熱板對基板進行加熱時之模式圖。 圖60係顯影液之溫度及圖案尺寸的關係圖。 圖61A、B係顯影液之供應方法的模式圖。· 圖62A、B、及C係利用噴嘴控制吐出量之方法的模式圖。 圖63係臭氧水之供應方法的模式圖。 圖64係圖案尺寸及外緣部之供應時間的關係圖。 •圖65係習知加熱裝置之模式化剖面圖。 圖66係習知加熱處理中之氣流方向及曝光晶片的位置關 係圖。 圖67係使用習知加熱裝置進行加熱處理所得到之圖案複 印結果的面内分布是否良好的圖。 發明之詳細說明 以下係針對本發明實施形態以圖面進行說明。又,以下之 說明當中,對於具有大略相同之機能及構成的構成要素,會 附與同一符號,並且只有在必要時才會實施重複說明。 圖1係本發明各實施形態相關之基板處理裝置的平面圖。 此基板處理裝置係含有塗佈顯影裝置1〇1、曝光裝置1〇2。塗 佈顯影裝置101係含有晶圓台· 103、加熱裝置1〇4、塗佈機1〇5、 顯影邵106 '及界面1〇7。各部之配置如圖例所示,但不限於 此方式而已。 (第1實施形態) -11 - 本紙張尺度適用中國國家標準((:;1^3) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(/ ) 所構成。在以下之實施形態中,亦採用相同之化學放大型光 阻。 前述預烘後,將前述晶圓W冷卻至室溫。將晶圓W移至以 波長248 nm之KrF受激準分子雷射(遠紅外線雷射)為光源之曝 光裝置,藉經由曝光用遮罩實施縮小投影曝光。 圖3係曝光裝置中,將本實施例使用之曝光用遮罩複印至 晶圓W時所得到之圖案的放大圖。圖中,1個曝光區域320 (以 下簡稱為曝光晶片)係含有左半之線圖案區域32卜及完全無 光阻殘留之平曝光區域322。 .圖4係線圖案區域321之放大圖。圖中,401係間隔部、402係 線部。如圖4所示,前述線圖案區域321之配置係為線尺寸 =170 nm、間隔尺寸=90 nm、重複圖案之間隔=:260 nm。 如圖5所示,此曝光晶片320會在晶圓W上複印成縱11 X橫13 之配置,並形成潛影。 其次,前述曝光後,將前述晶圓W移至本實施形態之加熱 裝置,以0.1 nm之間隔載置於前述均熱板202上。然後,使前 述第2空間部212内流過一定方向之氣流217,在140°C、90秒之 條件下實施PEB處理。 實施PEB處理後,將前述晶圓W冷卻至室溫。將前述晶圓W 移至顯影單元,實施60秒之鹼性顯影處理。顯影處理結束後 ,實施純水之清洗處理及旋#乾燥處理,形成光阻圖案。 以下係將使用本實施形態之加熱裝置所得之光阻圖案尺 寸的面内分布和圖65所示以習知加熱裝置實施PEB處理結果 進行比較的說明。 -14- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(12 ) 圖67係使用習知加熱裝置所得之圖案複印結果良否的面 内分布。 圖中斜線所示為曝光晶片,係在顯影後從上方以SEM (Scanning Electron Microscope、掃描電子顯微鏡)觀察時判定為 NG者。亦即,未能顯現光阻圖案者。如圖67所示,相對於 PEB處理時之氣流,位於最上游側之曝光晶片為NG。如下面 所示,其原因係因各晶片之曝光量不同。亦即,習知之加熱 裝置在實施PEB處理時,含有光阻膜蒸發之酸的氣流6504, 會如圖66中之箭頭方向從左方流向右方。結果,位於氣流之 最.上游位置之曝光晶片所蒸發的酸會被此氣流運至下游側 ,並再度附著於下游側之曝光晶片上。所以,酸量的收支即 為(產生之酸)-(蒸發之酸)+ (再度附著之酸)。然而,相對 於氣流,位於最上游之位置的晶片因為並無前述(再度附著 之酸),其實際曝光量會少於位於下游之晶片。因此,雖然對 各曝光晶片6705提供相同能量(曝光照射量及PEB之加熱量), 顯影後所形成之光阻圖案的線尺寸會產生差異。亦即使用 正型光阻時,位於最上游之曝光晶片會較大。 圖6係使用本實施形態相關加熱裝置所得之圖案複印結果 良否的面内分布圖。如圖6所示,未觀察到被判定為NG之曝 光晶片,而可獲得良好之圖案複印結果。 此外,本實施形態使用孔輕50 μηι、氣孔率40%之多孔質陶 瓷板的理由如下。圖8(a)係孔徑50 μπι之多孔質陶瓷板的氣孔 率、及蒸發之酸的再度附著量(以氣孔率0時為基準)之關係圖 。由圖可知,因為氣孔率40%時,再度附著量的抑制效果達 -15- 本紙張尺度適用中國國家標準(CNS) Α4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(14 ) 。前述鹵素燈731則是利用埋置於前述均熱板202之熱電對(圖 上未標示)的溫度來實施輸出控制,將其調節至期望溫度(140 °C)。本實施形態中,係使用孔徑100 μιη、氣孔率50%之多孔質 陶瓷板209。 其次,針對使用前述加熱裝置之ΡΕΒ處理及光阻圖案形成 進行說明。 首先,利用旋轉塗佈法在晶圓W上形成當做反射防止膜使 用之塗佈膜。其次,在190°C、60秒之條件下實施烘乾處理, 形成厚度60 nm之反射防止膜。 .前述晶圓W上塗佈正型化學放大型光阻後,在140°C、90秒 之條件下實施預烘。利用此方式,前述反射防止膜上會形成 400 nm厚度之光阻膜。 前述預烘後,將前述晶圓W冷卻至室溫。將晶圓W移至以 波長248 nm之KrF受激準分子雷射為光源之曝光裝置,經由 曝光用遮罩實施縮小投影曝光。 如圖5所示,經由曝光用遮罩,含有150 nm之線及間隔圖案 的曝光晶片會在晶圓W上複印成縱11X橫13之配置,並形成 潛影。 其次,前述曝光後,將前述晶圓W移至本實施形態之加熱 裝置,並載置於前述均熱板202上。然後,使前述第2空間部 212内流過一定方向之氣流2'17,在丨40°C、90秒之條件下實施 PEB處理。PEB處理後,實施和第1實施形態相同之處理,形 成光阻圖案。 前述第2實施形態時,顯影後測量晶圓W面内之光阻線尺 -17- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 _____B7 五、發明説明(15 ) 寸的結果’則如下所示。亦即,150 nm線及間隔圖案之面内 尺寸誤差,.從習知加熱裝置之PEB處理時的9·7邮(3σ)大幅降 低為4.3 nm。 此外’前述第1及第2實施形態中,係分別針對線圖案、及 線及間隔圖案進行說明。然而,並不限於這些圖案,例如洞 圖案等其他圖案亦可得到相同效果。 另外,第1及第2實施形態中,對多孔質陶瓷板之孔徑及氣 孔率的數值都提出一個實例,然而,不一定限定於該數值。 例如’應由圖8A所示之氣孔率及蒸發之酸的再度附著量關 係求取最佳氣孔率。 (第3實施形態) 本發明之第3實施形態相關之加熱裝置、及使用前項之基 板處理方法則參照圖9來實施說明。和第1實施形態相同之部 份省略其說明,只針對不同部份進行說明。第3實施形態使 用吸附構件來吸附蒸發物。 圖9係第3實施形態相關加熱裝置之模式化剖面圖。 腔室208内,前述均熱板202之上方附近設置著和其相對之 吸附構件940。吸附構件940及前述均熱板202間的距離為〇.5 mm。吸附構件940係以複數之支持銷213所支撐。 .前述吸附構件940係採用表面經過研磨之單晶矽板。另外 ,亦可使用陶瓷、氧化鋁、灰石英等氧化物、或氮化物本身 所構成者。同時,亦可使用在這些構件表面覆蓋氧化膜或氮 化膜者。 加熱處理中從前述晶圓W蒸發之蒸發物質會被吸附於靠近 -18· ^紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) '~ 1300514 A7 _B7_._ 五、發明説明(16 ) 前述晶圓W設置之吸附構件940的表面上。 其次,針對使用前述加熱裝置之PEB處理及光阻圖案形成 進行說明。 至曝光為止,和第1實施形態相同。和第1實施形態相同, 經過曝光後,曝光晶片會在晶圓W上複印成縱11 X橫13之配 置,並形成潛影。 曝光後,將前述晶圓W移至本實施形態之加熱裝置,並以 0.1 mm間隔載置於前述均熱板202上。然後,在140°C、90秒之 條件下實施PEB處理。PEB處理後,實施和第1實施形態相同 之.處理,形成光阻圖案。 圖6係使用本實施形態相關加熱裝置所得之圖案複印結果 良否的面内分布圖。亦即,晶圓W之面内未觀察到被判定為 NG之曝光晶片,而可獲得良好之圖案複印結果。 此外,本實施例之吸附構件及均熱板的距離(間隔)為0.5 mm。其理由說明如下。圖8B係吸附構件及均熱板之間隔d、 及蒸發及再度附著之酸的擴散距離(以間隔7.5 mm時的值為 基準)之關係圖。間隔愈小時,酸之擴散距離愈小,相對地, 必須對間隔實施高精度控制(蒸發距離在晶圓W面内會有誤 差)。考慮此點,選擇相對較易控制之間隔0.5 mm。 如上面所述,若利用本實施形態,在PEB處理步驟時,因 從光阻膜蒸發之酸會吸附菸吸附構件940,蒸發之酸不會再 度附著於晶圓W上。因此,晶圓W面内不會因為蒸發之酸再 度附著於晶圓W上而發生實質曝光量變動的情形,可提高晶 圓W面内之光阻尺寸的均一性。此外,PEB處理步驟中,因可 -19- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1300514 A7 B7 五、發明説明(18 ) 第3及第4實施形態時,可以在當做吸附構件使用之單晶矽 板背面裝設加熱器。利用此加熱器,將晶圓W從加熱裝置取 出後,可以加熱器對單晶碎板加熱。亦可利用此加熱,使吸 附之酸脫離,實施單晶碎板表面之清理。此時,腔室側面部 最好設置吸氣孔及排氣孔,實施脫離之酸的排出。 (第5實施形態) 本發明之第5實施形態相關之加熱裝置、及使用前項之基 板處理方法則參照圖11來實施說明。和第1實施形態相同之 部份省略其說明,只針對不同部份進行說明。第5實施形態 係.將加熱裝置使用於放射能量線前之加熱處理步驟,具體 而言,即使用於光阻塗佈步驟後之預烘步驟。 圖11係第5實施形態相關加熱裝置之模式化剖面圖。 本實施形態時,灼熱板202及晶圓W間之電感式間隔為0.5nm。 腔室208係含有均熱板202、筐體201、及頂板207。腔室208内 之熱板202上方,以相對向並十分接近方式設置著近接板1107 。近接板1107及均熱板202間之距離為2.0 mm。 近接板1107之上部,則以同心圓狀配置著以對近接板加熱 為目的之加熱器1109。此加熱器1109係利用圖上未標示之溫 度感測器及溫度控制單元來控制。利用加熱器1109之控制, 可以控制近接板1107之溫度。近接板1107面向晶圓W之表面 為鏡面研磨。 近接板1107係使用鋁製品。或者,亦可使用加工容易且有 佳熱傳導率者,如SUS製者。此外,亦可在近接板1107表面設 置以促進放熱為目的之放熱部(圖上未標示)。利用放熱部可 -21 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1300514 A7 B7 五、發明説明(2Γ ) 防止膜上形成厚度300 nm之光阻膜。 預烘後,·將前述晶圓W冷卻至室溫。將晶圓W移至以波長 193 nm之ArF受激準分子雷射為光源之曝光裝置。此時,經由 曝光用遮罩,含有110 nm之線及間隔圖案的曝光區域會在晶 圓W上複印成縱13 X橫15之配置,並形成潛影。 曝光後,將前述晶圓W移至本實施形態之加熱處理裝置, 以0.1 mm之間隔載置於前述均熱板202上。加熱處理中,從前 述晶圓W蒸發之蒸發物質會附著於板構件1207之表面。在110 °C、90秒之條件下實施PEB處理。PEB處理後,實施和第1實施 形.態相同之處理,形成光阻圖案。 在顯影後測量晶圓W面内之光阻線尺寸的結果,110 nm線 及間隔圖案之面内尺寸誤差,比使用習知PEB處理裝置時減 少了大約一半。 如上面所述,若利用本實施形態,在PEB處理步驟時,因 . 從光阻膜蒸發之酸會吸附於板構件1207,蒸發之酸不會再度 附著於晶圓W上。因此,晶圓W面内不會因為蒸發之酸再度 附著於晶圓W上而發生實質曝光量變動的情形,可提高晶圓 W面内之光阻尺寸的均一性。 (第7實施形態) .本發明之第7實施形態相關之加熱裝置、及使用前項之基 板處理方法則參照圖14來實施說明。和第1實施形態相同之 部份省略其說明,只針對不同部份進行說明。第7實施形態 係在電場存在之情形下實施加熱處理。 圖14係第7實施形態相關加熱裝置之模式化剖面圖。 -24- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1300514 A7 B7 五、發明説明(22 ) 腔室208内,前述均熱板202之上方設置著和其相對之電極 構件1450。前述均熱板202及前述灼熱板202間的距離為3.0 mm 。電極構件1450係以複數之支持銷214所支撐。 電極構件1450係使用SUS。或者,亦可使用具耐酸性及導 電性之金屬或半導體。此外,電極構件1450在和晶圓W相對 之表面亦可覆蓋氧化膜或氮化膜等絕緣膜。 以電源P對前述均熱板202及前述電極構件1450間施加電壓 。利用此施加電壓,可以在加熱處理中使前述均熱板202及 前述電極構件1450間產生垂直方向(紙上為上下方向)之電場。 .本實施形態時,對前述均熱板202施加接地電位,且對前 述電極構件1450施加負電位。然而,此電位關係只要前述電 極構件1450之電位相對低於前述均熱板202之電位即可。 利用產生之電場,從晶圓W蒸發之帶正電蒸發物質一例如 酸,會在垂直方向移動。接著,蒸發物質會吸附於前述電極 構件1450之表面。所以,從光阻蒸發之酸不會再度附著於晶 圓W上。 其次,針對使用前述加熱裝置之PEB處理及光阻圖案形成 進行說明。 至曝光為止,和第1實施形態相同。如圖5所示,經過曝光 後,含有130 nm之線及間隔圖案的曝光晶片會在晶圓W上複 印成縱11 X橫13之配置,並形成潛影。 曝光後,將前述晶圓W移至本實施形態之加熱裝置,將其 載置於前述均熱板202上。然後,對前述均熱板202施加接地 電位並對前述電極構件1450施加負電位,在140°C、90秒之條 -25- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(25 ) 前述均熱板202施加接地電位,且對前述電極構件1450施加正 電位。然而,此電位關係只要前述電極構件1450之電位高於 前述均熱板202之電位即可。 因從晶圓W蒸發之蒸發物質一例如酸為帶正電,利用施加 於前述電極構件1450之高電位,可以抑制光阻之酸蒸發。 第10實施形態相關之加熱裝置,因均熱板及電極構件間之 施加電壓容易變更,可任意變更電場強度,故可以很簡單地 實施抑制酸蒸發之控制。所以,使用本實施形態加熱裝置之 PEB處理,因為容易控制酸蒸發,故也容易控制光阻尺寸之 均一性0 第7至第10之實施形態時,在結束加熱處理,從加熱裝置 取出晶圓後,亦可利用對電極構件施加正電位使吸附之酸 脫離,實施電極構件表面之清理。此時,腔室側面部最好設 置吸氣孔及排氣孔,,實施脫離之酸的排出。 第1至第4、以及第7至第10之實施形態,係說明在PEB處理 步驟使用加熱裝置之情形。然而,當然亦可使用於如塗佈膜 形成後之加熱處理步驟等光阻圖案形成之其他步驟。利用 此方式,可得到和第6實施形態相同之效果。 (第11實施形態) 參照圖面說明本發明第11實施形態相關之基板處理方法。 第11實施形態之曝光步驟時、對應各曝光晶片設定各曝光晶 片之曝光量條件。曝光條件和曝光步驟後實施之PEB處理步 驟有密切的關係。PEB處理步驟則可利用如圖65所示之習知 加熱裝置來實施。 -28- 本纸張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1300514 A7 B7 五、發明説明(26 ) 至預烘為止,和第1實施形態相同。接著,和第1實施形態 相同,曝光會將含有150 nm之線及間隔圖案的曝光晶片在晶 圓W上複印成縱11 X橫13之配置,並形成潛影。曝光條件則 設定如下。 PEB處理步驟之各曝光晶片1801及PEB處理中之氣流1802方 向的位置關係如圖18所示。 圖18中,晶圓W之曝光晶片1801可分成對PEB處理中之氣流 1802而言位於最上游側之最上游曝光晶片1801A、以及其他對 氣流1802而言位於下游側之下游曝光晶片1801B。採用此種方 式.實施曝光晶片之分類,依基於前述理由,因上游側之曝光 量會低於下游側之曝光量。1803係缺口。 本實施形態時,係將曝光步驟之實質曝光量調整為使前 述最上游曝光晶片1801A及前述下游曝光晶片1801B相同。亦 即,利用下列方式,將複印至前述最上游曝光晶片1801A時 之曝光量設定為比前述下游曝光晶片1801B之曝光量更大。 圖19係曝光量、及經過光蝕刻步驟而形成之光阻線尺寸的 關係圖。圖19中之實線係下游_光晶片,虛線則係最上游曝 光晶片。 從圖19求取光阻線尺寸期望之150 nm的曝光量條件時,最 上游曝光晶片1801A為18.55 mJ/cm2、下游曝光晶片1801B則為 18.36 mJ/cm2 〇 * 利用此方式,預先求取曝光量及整修光阻線尺寸之關係, 即可決定對前述各曝光晶片1801之最佳曝光量條件。 所以,係以各自不同之曝光量條件對最上游曝光晶片 -29- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(27 ) 1801A及下游曝光晶片1801B實施曝光。此曝光步驟後,曝光 步驟時及PEB處理步驟時之晶圓W的切口 1803會隨時保持同 一方向,例如使其位於下側之旋轉修正。然後,將前述晶圓 W移至前述加熱裝置,在140°C、90秒之條件下實施PEB處理。 PEB處理後,實施和第1實施形態相同之處理,形成光阻圖案。 顯影後測量晶圓W面内之光阻線尺寸的結果,則如下所示 。亦即,150 nm線及間隔圖案之面内尺寸誤差,從未實施曝 光量條件修正時之11.6 nm (3 σ)大幅降低為5.4 nm。 本實施形態中,係針對使用1個PEB用加熱裝置的情形進行 說.明,然而,亦可使用複數PEB用加熱裝置來實施複數晶圓 W之連續處理。此時,在PEB處理之前階段,需對應移至那一 個PEB用加熱裝置來實施晶圓W之旋轉修正。以下係說明其 必要性。 圖20係塗佈顯影器内之加熱單元群及晶圓搬送臂ARM的模 式圖,同時亦是將晶圓W搬送至HP1-1之狀態圖。 圖20中,加熱單元群係由2座架狀複數段相疊構造所形成 之塔(TW1及TW2)所構成。PEB之單元位於TW1之HPM及TW2之 HP2-1。其他加熱單元則被利用於如反射防止膜之加熱處理 或光阻塗佈後之預烘用。 圖21係將晶圓搬運至HP1-1上之狀態下從上向下俯視圖。 如圖21所示,晶圓W之切口 Ϊ803係位於左側。最上游曝光晶 片1801A則很正常地位於氣流1802之上游側。 接著,以圖22及圖23針對將晶圓W搬運至HP2-1的狀態進行 說明。如圖22所示,因為晶圓W之切口 1803及搬送臂ARM之相 -30- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(28 ) 對位置關係未改變,將晶圓W搬運至HP2-1時,晶圓W之切口 1803在圖22中會位於右側。結果,最上游曝光晶片1801A位於 氣流1802之下游側。亦即,相對於氣流1802之最上游曝光晶 片的位置關係,搬運至HP1-1時及搬運至HP2-1時會呈現180度 旋轉。所以,如圖24所示,將晶圓W搬運至HP2-1時,在搬運 之前一階段必須先實施旋轉修正後再執行搬運。 如上面所述,使用複數相同裝置構造之PEB用加熱裝置連 續處理複數晶圓W時,在置入PEB用加熱裝置之前一階段, 必須對應搬運至那一個PEB單元實施晶圓W之旋轉修正。 .不對晶圓W實施旋轉修正而對各晶圓W設定最上游曝光晶 片及下游曝光晶片來實施曝光亦非不可,然而,步驟十分繁 雜而不符實際。 又,本實施形態係針對150 nm之線及間隔圖案進行說明, 但不限於此,亦可使用如洞圖案等其他圖案。 (第12實施形態) 參照圖面說明本發明第12實施形態相關之基板處理方法。 第12實施形態係對應曝光晶片調整PEB處理時之加熱溫度。 至預烘為止,和第1實施形態相同。接著,曝光會將含有 140 nm之孤立線圖案的曝光晶片在晶圓W上複印成縱11 X橫 13之配置,並形成潛影。本實施形態時,複印之曝光量條件 方面,全部曝光晶片都為同一條件。 曝光後,曝光步驟時及PEB處理步驟時,如圖18所示,晶 圓W之切口 1803會隨時保持同一方向,例如使其位於下側之 旋轉修正。將晶圓W移至前述加熱裝置,實施PEB處理。此時 -31 - 本纸張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 裝 訂Figs. 56A and B are schematic views showing a state in which a gas stream is blown out by a gas jet nozzle. 57A, B, and C illustrate the thinning of the developer. Figure 58 is a graph showing the relationship between the flow rate and the pattern size. 59A and B are schematic views showing a state in which a substrate is heated by a hot plate. Figure 60 is a graph showing the relationship between the temperature of the developer and the pattern size. Fig. 61A and Fig. B are schematic views showing a method of supplying a developer. 62A, B, and C are schematic diagrams of a method of controlling the amount of discharge by a nozzle. Fig. 63 is a schematic view showing a method of supplying ozone water. Fig. 64 is a diagram showing the relationship between the pattern size and the supply time of the outer edge portion. • Figure 65 is a schematic cross-sectional view of a conventional heating device. Fig. 66 is a view showing the relationship between the direction of the air flow and the exposure wafer in the conventional heat treatment. Fig. 67 is a view showing whether or not the in-plane distribution of the pattern copying result obtained by heat treatment using a conventional heating device is good. DETAILED DESCRIPTION OF THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, constituent elements having substantially the same functions and configurations will be denoted by the same reference numerals, and repeated explanation will be carried out only when necessary. Fig. 1 is a plan view showing a substrate processing apparatus according to each embodiment of the present invention. This substrate processing apparatus includes a coating and developing device 1〇1 and an exposure device 1〇2. The coating developing device 101 includes a wafer stage 103, a heating device 1〇4, a coater 1〇5, a development block 106', and an interface 1〇7. The configuration of each part is shown in the figure, but it is not limited to this method. (1st Embodiment) -11 - This paper size is applied to the following national standards ((:; 1^3) A4 size (210 X 297 mm) 1300514 A7 B7 V. Invention description (/ ). In the form, the same chemically amplified photoresist is also used. After the prebaking, the wafer W is cooled to room temperature. The wafer W is moved to a KrF excimer laser having a wavelength of 248 nm (far infrared ray The exposure apparatus which is a light source is subjected to reduction projection exposure by a mask for exposure. Fig. 3 is an enlarged view of a pattern obtained by copying the exposure mask used in the embodiment to the wafer W in the exposure apparatus. In the figure, one exposure region 320 (hereinafter simply referred to as an exposure wafer) includes a left half line pattern region 32 and a flat exposure region 322 which is completely free of photoresist. Fig. 4 is an enlarged view of the line pattern region 321. In the middle, the 401-series spacer and the 402-series line portion. As shown in Fig. 4, the line pattern region 321 is arranged such that the line size = 170 nm, the interval size = 90 nm, and the interval of the repeating pattern = 260 nm. As shown in FIG. 5, the exposed wafer 320 is copied on the wafer W into a vertical 11 X horizontal 13 Then, after the exposure, the wafer W is transferred to the heating device of the embodiment, and placed on the heat equalizing plate 202 at intervals of 0.1 nm. Then, the second space portion is placed. The flow 217 flowing in a certain direction in 212 is subjected to PEB treatment at 140 ° C for 90 seconds. After the PEB treatment, the wafer W is cooled to room temperature, and the wafer W is moved to a developing unit to be implemented. After 60 seconds of alkali development treatment, after completion of the development treatment, a pure water cleaning treatment and a spin drying treatment are performed to form a photoresist pattern. Hereinafter, the in-plane distribution of the resist pattern size obtained by using the heating device of the present embodiment is obtained. The comparison with the results of the PEB treatment performed by the conventional heating device is shown in Fig. 65. -14- The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Description of invention (12 Fig. 67 is an in-plane distribution of the result of pattern copying obtained by using a conventional heating device. The oblique line in the figure shows the exposed wafer, which is SEM (Scanning Electron Microscope, scanning electron microscope) from above. When it is observed, it is judged as NG. That is, the photoresist pattern is not displayed. As shown in Fig. 67, the exposed wafer located on the most upstream side is NG with respect to the airflow at the time of PEB processing. Since the exposure amount of each wafer is different, that is, when the conventional heating device performs the PEB treatment, the gas stream 6504 containing the acid evaporated by the photoresist film flows from the left to the right as the direction of the arrow in Fig. 66. The acid vaporized by the exposed wafer at the most upstream position of the gas stream is transported to the downstream side by the gas stream and reattached to the exposed wafer on the downstream side. Therefore, the amount of acid is the (acid produced) - (evaporated acid) + (re-attached acid). However, the wafer located at the most upstream position relative to the gas flow has no actual exposure (less reattachment of acid) than the wafer located downstream. Therefore, although the same energy (exposure irradiation amount and heating amount of PEB) is supplied to each of the exposed wafers 6705, the line size of the photoresist pattern formed after development differs. That is, when a positive photoresist is used, the exposure wafer located at the most upstream will be larger. Fig. 6 is a plan view showing the in-plane distribution of the pattern copying result obtained by using the heating device according to the embodiment. As shown in Fig. 6, no exposed wafer judged as NG was observed, and a good pattern copying result was obtained. Further, in the present embodiment, the reason why a porous ceramic plate having a pore size of 50 μm and a porosity of 40% is used is as follows. Fig. 8(a) is a graph showing the relationship between the porosity of the porous ceramic plate having a pore diameter of 50 μm and the re-adhesion amount of the evaporated acid (based on the porosity of 0). As can be seen from the figure, because the porosity is 40%, the re-sticking effect is -15-. The paper scale is applicable to the Chinese National Standard (CNS) Α4 specification (210 X 297 mm). 1300514 A7 B7 V. Invention Description (14) . The halogen lamp 731 is subjected to output control by using a temperature of a thermoelectric pair (not shown) buried in the heat equalizing plate 202, and is adjusted to a desired temperature (140 °C). In the present embodiment, a porous ceramic plate 209 having a pore diameter of 100 μm and a porosity of 50% is used. Next, the crucible treatment and the formation of the resist pattern using the above heating device will be described. First, a coating film used as an antireflection film is formed on the wafer W by a spin coating method. Next, drying treatment was carried out at 190 ° C for 60 seconds to form an anti-reflection film having a thickness of 60 nm. After applying a positive-type chemically amplified photoresist to the wafer W, pre-baking was performed at 140 ° C for 90 seconds. In this manner, a photoresist film having a thickness of 400 nm is formed on the antireflection film. After the prebaking, the wafer W is cooled to room temperature. The wafer W is moved to an exposure apparatus using a KrF excimer laser having a wavelength of 248 nm as a light source, and the projection exposure is reduced by the exposure mask. As shown in Fig. 5, through the exposure mask, the exposed wafer containing the 150 nm line and the spacer pattern is copied onto the wafer W to have a vertical 11X horizontal 13 configuration, and a latent image is formed. Next, after the exposure, the wafer W is transferred to the heating device of the embodiment and placed on the heat equalizing plate 202. Then, the airflow 2'17 flowing in a predetermined direction in the second space portion 212 is subjected to PEB treatment at 40 ° C for 90 seconds. After the PEB treatment, the same treatment as in the first embodiment is carried out to form a photoresist pattern. In the second embodiment, the photoresist ruler -17 in the plane of the wafer W after development is developed. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 _____B7 V. Description of the invention ( 15) The result of inch is as follows. That is, the in-plane dimensional error of the 150 nm line and the spacer pattern is greatly reduced from the 9. 7 post (3σ) of the conventional heating device to 4.3 nm. Further, in the first and second embodiments described above, the line patterns, the lines, and the space patterns will be described. However, it is not limited to these patterns, and other patterns such as a hole pattern can obtain the same effect. In addition, in the first and second embodiments, the numerical values of the pore diameter and the porosity of the porous ceramic plate are given as an example. However, the numerical value is not necessarily limited. For example, the optimum porosity should be determined by the porosity ratio shown in Fig. 8A and the re-adhesion amount of the evaporated acid. (Third Embodiment) A heating device according to a third embodiment of the present invention and a substrate processing method according to the above-described first embodiment will be described with reference to Fig. 9 . The same components as those in the first embodiment are not described, and only the different portions will be described. In the third embodiment, the adsorbing member is used to adsorb the evaporated product. Fig. 9 is a schematic cross-sectional view showing a heating device according to a third embodiment. In the chamber 208, an adsorption member 940 opposed to the upper portion of the soaking plate 202 is disposed. The distance between the adsorption member 940 and the aforementioned heat equalizing plate 202 is 〇.5 mm. The adsorbing member 940 is supported by a plurality of support pins 213. The adsorbing member 940 is a single crystal raft plate whose surface has been ground. Further, an oxide such as ceramics, alumina or ash quartz, or a nitride itself may be used. At the same time, it is also possible to use an oxide film or a nitride film on the surface of these members. The evaporated material evaporated from the wafer W in the heat treatment will be adsorbed close to the -18·^ paper scale applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) '~ 1300514 A7 _B7_._ V. Description of the invention (16) The wafer W is disposed on the surface of the adsorption member 940. Next, the PEB treatment and the formation of the resist pattern using the above heating device will be described. The exposure is the same as in the first embodiment. As in the first embodiment, after exposure, the exposed wafer is copied onto the wafer W in a vertical 11 X horizontal 13 configuration to form a latent image. After the exposure, the wafer W was transferred to the heating apparatus of the present embodiment, and placed on the heat equalizing plate 202 at intervals of 0.1 mm. Then, the PEB treatment was carried out at 140 ° C for 90 seconds. After the PEB treatment, the same treatment as in the first embodiment was carried out to form a photoresist pattern. Fig. 6 is a plan view showing the in-plane distribution of the pattern copying result obtained by using the heating device according to the embodiment. That is, the exposed wafer judged to be NG was not observed in the plane of the wafer W, and a good pattern copying result was obtained. Further, the distance (interval) between the adsorption member and the heat equalizing plate of the present embodiment was 0.5 mm. The reason is explained below. Fig. 8B is a graph showing the relationship between the distance d between the adsorption member and the heat equalizing plate, and the diffusion distance of the acid which is evaporated and reattached (based on the value at intervals of 7.5 mm). The smaller the interval, the smaller the diffusion distance of the acid, and relatively, the interval must be precisely controlled (the evaporation distance is misaligned in the W plane of the wafer). With this in mind, choose a relatively easy to control interval of 0.5 mm. As described above, according to the present embodiment, in the PEB treatment step, since the acid evaporated from the photoresist film adsorbs the smoke adsorbing member 940, the evaporated acid does not adhere to the wafer W again. Therefore, in the wafer W surface, the evaporation of the acid is not adhered to the wafer W again, and the substantial exposure amount fluctuates, and the uniformity of the size of the photoresist in the wafer W surface can be improved. In addition, in the PEB processing step, the Chinese National Standard (CNS) A4 specification (210X297 mm) is applicable to the paper scale. 1300514 A7 B7 5. Invention Description (18) In the third and fourth embodiments, A heater is mounted on the back side of the single crystal raft used for the adsorption member. With this heater, after the wafer W is taken out from the heating device, the single crystal chip can be heated by the heater. This heating can also be utilized to remove the adsorbed acid and to clean the surface of the single crystal chip. At this time, it is preferable that the side surface portion of the chamber is provided with an intake hole and a vent hole to discharge the acid which is detached. (Fifth Embodiment) A heating device according to a fifth embodiment of the present invention and a substrate processing method according to the above-described first embodiment will be described with reference to Fig. 11 . The same portions as those in the first embodiment are omitted, and only the different portions will be described. Fifth Embodiment A heating device is used in a heat treatment step before a radiation energy ray, specifically, a prebaking step after a photoresist coating step. Fig. 11 is a schematic cross-sectional view showing a heating device according to a fifth embodiment. In the present embodiment, the inductive interval between the hot plate 202 and the wafer W is 0.5 nm. The chamber 208 includes a heat equalizing plate 202, a casing 201, and a top plate 207. Above the hot plate 202 in the chamber 208, a proximal plate 1107 is disposed in a relatively close and very close manner. The distance between the proximal plate 1107 and the soaking plate 202 is 2.0 mm. In the upper portion of the proximal plate 1107, a heater 1109 for heating the proximal plate is disposed concentrically. This heater 1109 is controlled by a temperature sensor and a temperature control unit not shown. With the control of the heater 1109, the temperature of the proximity plate 1107 can be controlled. The surface of the proximity plate 1107 facing the wafer W is mirror-polished. The proximal plate 1107 is made of an aluminum product. Alternatively, those who are easy to process and have good thermal conductivity, such as SUS, can also be used. Further, a heat radiating portion (not shown) for promoting heat generation may be provided on the surface of the proximal plate 1107. Use the heat release section -21 - This paper size applies to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 1300514 A7 B7 V. Invention Description (2Γ) Prevent the formation of a 300 nm thickness photoresist film on the film. After prebaking, the wafer W is cooled to room temperature. The wafer W was moved to an exposure apparatus using an ArF excimer laser having a wavelength of 193 nm as a light source. At this time, an exposure region containing a line of 110 nm and a space pattern is formed on the wafer W by the exposure mask to form a vertical 13 X horizontal 15 to form a latent image. After the exposure, the wafer W was transferred to the heat treatment apparatus of the present embodiment, and placed on the heat equalizing plate 202 at intervals of 0.1 mm. In the heat treatment, the evaporated substance evaporated from the wafer W described above adheres to the surface of the plate member 1207. The PEB treatment was carried out at 110 ° C for 90 seconds. After the PEB treatment, the same treatment as in the first embodiment is carried out to form a photoresist pattern. As a result of measuring the size of the photoresist line in the W plane of the wafer after development, the in-plane dimensional error of the 110 nm line and the spacer pattern was reduced by about half compared with the conventional PEB processing apparatus. As described above, according to the present embodiment, in the PEB treatment step, the acid evaporated from the photoresist film is adsorbed to the plate member 1207, and the evaporated acid does not adhere to the wafer W again. Therefore, in the wafer W surface, the evaporation of the acid is not adhered to the wafer W again, and the substantial exposure amount fluctuates, and the uniformity of the photoresist size in the wafer W surface can be improved. (Seventh Embodiment) A heating device according to a seventh embodiment of the present invention and a substrate processing method according to the first aspect of the invention will be described with reference to Fig. 14 . The same portions as those in the first embodiment are omitted, and only the different portions will be described. Seventh Embodiment A heat treatment is performed in the presence of an electric field. Fig. 14 is a schematic cross-sectional view showing a heating device according to a seventh embodiment. -24- This paper scale is applicable to China National Standard (CNS) A4 specification (210X297 mm) 1300514 A7 B7 V. Inventive Note (22) In the chamber 208, the electrode member opposite thereto is disposed above the above-mentioned heat equalizing plate 202 1450. The distance between the heat equalizing plate 202 and the aforementioned hot plate 202 is 3.0 mm. The electrode member 1450 is supported by a plurality of support pins 214. The electrode member 1450 is made of SUS. Alternatively, a metal or a semiconductor having acid resistance and conductivity can be used. Further, the electrode member 1450 may be covered with an insulating film such as an oxide film or a nitride film on the surface opposite to the wafer W. A voltage is applied between the heat equalizing plate 202 and the electrode member 1450 by the power source P. By this applied voltage, an electric field in the vertical direction (up and down direction on the paper) can be generated between the heat equalizing plate 202 and the electrode member 1450 in the heat treatment. In the present embodiment, a ground potential is applied to the heat equalizing plate 202, and a negative potential is applied to the electrode member 1450. However, this potential relationship is only required if the potential of the above-mentioned electrode member 1450 is relatively lower than the potential of the above-described heat equalizing plate 202. With the generated electric field, the positively evaporating substance, e.g., acid, evaporating from the wafer W will move in the vertical direction. Then, the evaporated substance is adsorbed on the surface of the aforementioned electrode member 1450. Therefore, the acid evaporated from the photoresist does not adhere to the crystal W again. Next, the PEB treatment and the formation of the resist pattern using the above heating device will be described. The exposure is the same as in the first embodiment. As shown in Fig. 5, after exposure, an exposed wafer containing a line pattern of 130 nm and a spacer pattern is overprinted on the wafer W to a vertical 11 X horizontal 13 configuration, and a latent image is formed. After the exposure, the wafer W is transferred to the heating device of the embodiment, and placed on the heat equalizing plate 202. Then, a ground potential is applied to the above-mentioned heat equalizing plate 202 and a negative potential is applied to the electrode member 1450, and the Chinese National Standard (CNS) A4 specification (210 X 297 metric) is applied at 140 ° C for 90 seconds. PCT) 1300514 A7 B7 V. Inventive Description (25) The heat equalizing plate 202 applies a ground potential, and applies a positive potential to the electrode member 1450. However, this potential relationship is only required if the potential of the electrode member 1450 is higher than the potential of the heat equalizing plate 202. Since the evaporated substance evaporated from the wafer W, for example, the acid is positively charged, the acid evaporation of the photoresist can be suppressed by the high potential applied to the electrode member 1450. In the heating device according to the tenth embodiment, the applied voltage between the heat equalizing plate and the electrode member can be easily changed, and the electric field intensity can be arbitrarily changed. Therefore, the control for suppressing acid evaporation can be easily performed. Therefore, the PEB treatment using the heating device of the present embodiment makes it easy to control the acidity evaporation, so that it is easy to control the uniformity of the photoresist size. 0 In the seventh to tenth embodiments, the heat treatment is terminated, and the wafer is taken out from the heating device. Thereafter, the adsorbed acid may be removed by applying a positive potential to the electrode member, and the surface of the electrode member may be cleaned. At this time, it is preferable that the side surface of the chamber is provided with an intake hole and a vent hole to discharge the acid which is detached. The first to fourth and seventh to tenth embodiments illustrate the case where a heating device is used in the PEB processing step. However, it is of course also possible to use other steps such as a resist pattern formation such as a heat treatment step after formation of a coating film. In this way, the same effects as those of the sixth embodiment can be obtained. (Eleventh Embodiment) A substrate processing method according to an eleventh embodiment of the present invention will be described with reference to the drawings. In the exposure step of the eleventh embodiment, the exposure amount condition of each exposure wafer is set corresponding to each exposure wafer. The exposure conditions are closely related to the PEB processing steps performed after the exposure step. The PEB processing step can be carried out using a conventional heating device as shown in Fig. 65. -28- This paper scale applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) 1300514 A7 B7 V. Inventive Note (26) Until the pre-baking, it is the same as the first embodiment. Next, in the same manner as in the first embodiment, the exposure wafer having an ink line and a spacer pattern of 150 nm is formed on the wafer W to be vertically 11 X horizontally 13 to form a latent image. The exposure conditions are set as follows. The positional relationship of each exposure wafer 1801 in the PEB processing step and the air flow 1802 in the PEB processing is as shown in FIG. In Fig. 18, the exposed wafer 1801 of the wafer W can be divided into the most upstream exposed wafer 1801A on the most upstream side for the gas flow 1802 in the PEB process, and the downstream exposed wafer 1801B on the downstream side on the other side of the flow 1802. In this manner, the classification of the exposed wafer is performed, and the exposure amount on the upstream side is lower than the exposure amount on the downstream side for the above reason. 1803 is a gap. In the present embodiment, the substantial exposure amount of the exposure step is adjusted so that the most upstream exposed wafer 1801A and the downstream exposed wafer 1801B are the same. That is, the exposure amount when copying to the most upstream exposure wafer 1801A is set to be larger than the exposure amount of the downstream exposure wafer 1801B by the following manner. Fig. 19 is a graph showing the relationship between the amount of exposure and the size of the photoresist line formed by the photolithography step. The solid line in Fig. 19 is the downstream_optical wafer, and the broken line is the most upstream exposed wafer. When the exposure amount of the desired 150 nm aperture of the photoresist line size is obtained from Fig. 19, the most upstream exposed wafer 1801A is 18.55 mJ/cm2, and the downstream exposure wafer 1801B is 18.36 mJ/cm2 〇* In this way, the exposure is obtained in advance. The relationship between the amount and the size of the repaired photoresist line determines the optimum exposure conditions for each of the exposed wafers 1801. Therefore, the most upstream exposure wafers are used for different exposure conditions. The Chinese National Standard (CNS) A4 specification (210 X 297 mm) is applicable to the paper scale. 1300514 A7 B7 5. Invention description (27) 1801A and downstream The exposure wafer 1801B is exposed. After this exposure step, the slit 1803 of the wafer W during the exposure step and the PEB processing step is maintained in the same direction at any time, for example, by the rotation correction on the lower side. Then, the wafer W was transferred to the above-mentioned heating device, and PEB treatment was carried out at 140 ° C for 90 seconds. After the PEB treatment, the same treatment as in the first embodiment is carried out to form a photoresist pattern. The results of measuring the size of the photoresist line in the W plane of the wafer after development are as follows. That is, the in-plane dimensional error of the 150 nm line and the interval pattern is greatly reduced to 11.4 nm (3 σ) from 5.4 nm when the exposure condition correction is not performed. In the present embodiment, the case of using one heating device for PEB is described. However, the continuous processing of the plurality of wafers W may be performed using a plurality of heating devices for PEB. At this time, in the stage before the PEB processing, the rotation correction of the wafer W is carried out correspondingly to the heating device for the PEB. The following is a description of its necessity. Fig. 20 is a view showing a pattern of a heating unit group and a wafer transfer arm ARM in a developing device, and a state in which the wafer W is transported to the HP 1-1. In Fig. 20, the heating unit group is composed of towers (TW1 and TW2) formed by two frame-shaped plural-numbered stacked structures. The PEB unit is located at HPM of TW1 and HP2-1 of TW2. Other heating units are used for, for example, heat treatment of the anti-reflection film or pre-baking after photoresist coating. Fig. 21 is a plan view from top to bottom in a state where the wafer is transported onto the HP1-1. As shown in Fig. 21, the slit 803 of the wafer W is located on the left side. The most upstream exposure wafer 1801A is normally located on the upstream side of the gas stream 1802. Next, a state in which the wafer W is transported to the HP 2-1 will be described with reference to Figs. 22 and 23 . As shown in Fig. 22, because the slit W1 of the wafer W and the phase of the transfer arm ARM-30-the paper scale are applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Description of the invention (28 When the wafer W is transported to the HP 2-1 without changing the positional relationship, the slit 1803 of the wafer W is located on the right side in FIG. As a result, the most upstream exposed wafer 1801A is located on the downstream side of the gas stream 1802. That is, the positional relationship of the most upstream exposed wafer with respect to the air current 1802 is 180 degrees rotated when transported to the HP1-1 and transported to the HP2-1. Therefore, as shown in Fig. 24, when the wafer W is transported to the HP 2-1, the rotation correction must be performed at one stage before the conveyance, and then the conveyance is performed. As described above, when the plurality of wafers W are continuously processed by the PEB having the same device configuration, the rotation correction of the wafer W must be carried out correspondingly to the one of the PEB units at a stage before the heating device for the PEB is placed. It is not necessary to perform the rotation correction on the wafer W without setting the most upstream exposure wafer and the downstream exposure wafer for each wafer W. However, the steps are complicated and unrealistic. Further, in the present embodiment, the line and the interval pattern of 150 nm are described. However, the present invention is not limited thereto, and other patterns such as a hole pattern may be used. (Twelfth Embodiment) A substrate processing method according to a twelfth embodiment of the present invention will be described with reference to the drawings. In the twelfth embodiment, the heating temperature at the time of PEB processing is adjusted in accordance with the exposure wafer. It is the same as that of the first embodiment until the prebaking. Next, the exposure exposes the exposed wafer containing the 140 nm isolated line pattern onto the wafer W in a vertical 11 X horizontal 13 configuration and forms a latent image. In the present embodiment, all of the exposed wafers have the same condition in terms of the exposure amount of the copy. After the exposure, at the exposure step and at the PEB processing step, as shown in Fig. 18, the slit 1803 of the wafer W is kept in the same direction at any time, for example, by the rotation correction on the lower side. The wafer W is transferred to the aforementioned heating device, and PEB processing is performed. At this time -31 - The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm).

1300514 A7 B7 五、發明説明(29 ) ,依據下列程序設定加熱條件。 圖25係PEB處理溫度、及顯影後之光阻線尺寸的關係圖。 實線係下游曝光晶片,虛線則係最上游曝光晶片。 從圖25求取光阻線尺寸期望之140 nm的PEB溫度條件時, 最上游曝光晶片1801A為140.23°C、下游曝光晶片1801B則為 140.00°C。 利用此方式,預先求取PEB處理溫度及整修光阻線尺寸之 關係,即可決定對前述各導光晶片1801之最佳加熱處理溫度 條件。 .本實施形態中,加熱條件之設定為最上游曝光晶片1801A 之加熱溫度為140.23°C、及下游曝光晶片1801B之加熱溫度 140.00°C。 此溫度設定上,相當於最上游曝光晶片1801A區域之分割 加熱器的設定溫度係愈高愈好。此時,因為配置於下游側之 加熱器亦會受到上游側加熱器之干擾,故最好亦調整下游 側加熱器之設定溫度。例如,最好能使用將複數熱電對等溫 度感測器埋設於晶圓W之溫度計測器等,實施各分割加熱器 之設定溫度的嚴密調整。 利用此方式,決定PEB處理之溫度設定並實施90秒之PEB處 理。PEB處理後,實施和第1實施形態相同之處理,形成光阻 圖案。 . 顯影後測量晶圓W面内之光阻線尺寸的結果,則如下所示 。亦即,140 nm孤立線圖案之面内尺寸誤差,從未實施曝光 量條件修正時之12.3 nm (3 σ)大幅降低為6.1 nm。 -32- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(30 ) (第13實施形態) 參照圖面說明本發明第13實施形態相關之基板處理方法。 第13實施形態係在晶圓面内實施曝光區域内之曝光量修正。 如圖26所示,只對相對於PEB中之氣流2601位於最上游側 之最上游曝光區域2602A實施曝光,實施PEB及顯影步驟,製 作評估用樣本1。針對評估用樣本1之最上游曝光區域2602A 實施光阻圖案尺寸評估,追求能獲得期望尺寸之曝光量條 件的最佳化(曝光量之修正)。 如圖27所示,在實施前述最佳化之曝光量條件下,對最上 游.曝光區域2602A實施曝光。對次下游曝光區域2602B實施曝 光,製作和前述相同之評估用樣本2。對評估用樣本2之曝光 區域2602B實施光阻圖案尺寸評估,追求能獲得期望尺寸之 曝光量條件的最佳化(曝光量之修正)。針對下游側之全部曝 光量區域實施此種曝光量之最佳化。 ·· 如上面所述,可針對PEB時之氣流依序計算出從配置於上 游側之曝光區域至下游側之曝光區域的曝光量修正條件。 利用此方式,可以實施有效且高精度之修正。 在以此種方式求取之曝光量條件下,在晶圓内形成曝光 區域時,曝光區域間之光阻圖案尺寸的均一性可獲得大幅 改善。 (第14實施形態) ' 參照圖面說明本發明第14實施形態相關之基板處理方法。 第14實施形態係實施曝光區域内之曝光量修正。光蝕刻時之 各步驟的詳細說明因和第11及第12之實施形態重複,故將其 -33- 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1300514 A7 B7 五、發明説明(31 ) 省略。 圖28係曝光區域、及PEB時之氣流的相對位置關係模式圖 。相對於氣流2801,從上游側向下游側方向為X軸,晶片之最 上游側邊緣部為X=0。 圖29係曝光量D時之晶片内位置X、及顯影後之光阻圖案 尺寸(線尺寸)的關係模式圖。基於上述理由,上游側之實效 曝光量會低於下游側之曝光量。因此,使用正型光阻時,上 游側的圖案尺寸會較大。下面係計算晶片内位置X之曝光量 修正的步驟說明。 .圖30係曝光量D附近之圖案尺寸及曝光量的關係圖.。以圖 案尺寸測量值為基準,以1次函數來近似表現曝光量及圖案 尺寸之關係。位置X=X1之圖案尺寸為L1時,由圖30之關係可 計算曝光量D卜其次,求取其對期望圖案尺寸L0之曝光量D0 的比率D1/D0。將所得之值乘以曝光量D— D· (D1/D0),而為 X=X1之最佳曝光量。利用此程序針對各位置X求取成為期待 圖案尺寸L0之最佳曝光量。其結果如圖31所示。 曝光區域内之此種曝光量修正,若使用逐步掃描型曝光 裝置,則亦可為如下面所示之方法。 設曝光時之光源照射能量為P、掃描速度為v、照明區域之 細縫寬度為s時,曝光量D和E· (s/v)咸比例。由此式求取晶片 内之位置X及掃描速度v的關'係。其結果如圖32所示。利用此 方式,在曝光區域内控制掃描速度v,可以實施曝光量修正。 如上面所述,在求取曝光量條件下,計算曝光量修正條件 ,形成曝光區域。結果,曝光區域内之光阻圖案尺寸的均一 -34- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)1300514 A7 B7 V. Inventive Note (29), set the heating conditions according to the following procedure. Figure 25 is a graph showing the relationship between the PEB processing temperature and the size of the photoresist line after development. The solid line is the downstream exposed wafer, and the dashed line is the most upstream exposed wafer. When the PEB temperature condition of 140 nm desired for the size of the photoresist is obtained from Fig. 25, the most upstream exposed wafer 1801A is 140.23 ° C, and the downstream exposed wafer 1801B is 140.00 ° C. In this manner, the optimum heat treatment temperature conditions for the respective light guiding wafers 1801 can be determined by preliminarily determining the relationship between the PEB processing temperature and the size of the repairing photoresist line. In the present embodiment, the heating conditions are set such that the heating temperature of the most upstream exposed wafer 1801A is 140.23 ° C and the heating temperature of the downstream exposed wafer 1801 B is 140.00 ° C. In this temperature setting, the higher the set temperature of the divided heater corresponding to the most upstream exposed wafer 1801A area, the better. At this time, since the heater disposed on the downstream side is also disturbed by the upstream heater, it is preferable to adjust the set temperature of the downstream heater. For example, it is preferable to perform a strict adjustment of the set temperature of each divided heater by using a thermometer or the like in which a plurality of thermoelectric-to-isothermal sensors are embedded in the wafer W. In this way, the temperature setting of the PEB process is determined and a PEB process of 90 seconds is performed. After the PEB treatment, the same treatment as in the first embodiment is carried out to form a photoresist pattern. The result of measuring the size of the photoresist line in the W plane of the wafer after development is as follows. That is, the in-plane dimensional error of the 140 nm isolated line pattern is greatly reduced to 12.1 nm at 12.3 nm (3 σ) when the exposure condition correction is not performed. -32- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Inventive Note (30) (Thirteenth Embodiment) A thirteenth embodiment of the present invention will be described with reference to the drawings. Substrate processing method. In the thirteenth embodiment, the exposure amount correction in the exposure region is performed in the wafer surface. As shown in Fig. 26, only the most upstream exposure region 2602A located on the most upstream side with respect to the gas flow 2601 in the PEB was exposed, and the PEB and development steps were carried out to prepare the sample 1 for evaluation. The photoresist pattern size evaluation is performed for the most upstream exposure region 2602A of the sample 1 for evaluation, and the optimization of the exposure amount (a correction of the exposure amount) for obtaining a desired size is pursued. As shown in Fig. 27, exposure is performed on the most upstream exposure region 2602A under the above-described optimum exposure amount. The secondary downstream exposure region 2602B was exposed to light, and the same evaluation sample 2 as described above was produced. The resist pattern size evaluation was performed on the exposure region 2602B of the evaluation sample 2, and the optimization of the exposure amount condition (correction of the exposure amount) for obtaining the desired size was pursued. This exposure amount is optimized for the entire exposure amount region on the downstream side. ·· As described above, the exposure amount correction condition from the exposure area disposed on the upstream side to the exposure area on the downstream side can be sequentially calculated for the airflow at the time of PEB. In this way, effective and highly accurate corrections can be implemented. Under the condition of the exposure amount obtained in this manner, when the exposed region is formed in the wafer, the uniformity of the size of the photoresist pattern between the exposed regions can be greatly improved. (Fourteenth Embodiment) A substrate processing method according to a fourteenth embodiment of the present invention will be described with reference to the drawings. In the fourteenth embodiment, the exposure amount correction in the exposure region is performed. The detailed description of each step in photolithography is repeated with the eleventh and twelfth embodiments, so the -33- paper scale is applied to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 1300514 A7 B7. DESCRIPTION OF THE INVENTION (31) Omitted. Fig. 28 is a schematic diagram showing the relative positional relationship of the airflow in the exposure area and the PEB. With respect to the air current 2801, the X-axis is from the upstream side to the downstream side, and the most upstream side edge portion of the wafer is X=0. Fig. 29 is a schematic diagram showing the relationship between the position X in the wafer and the size (line size) of the photoresist pattern after development in the case of the exposure amount D. For the above reasons, the effective exposure amount on the upstream side will be lower than the exposure amount on the downstream side. Therefore, when a positive photoresist is used, the pattern size on the upstream side is large. The following is a description of the steps for calculating the exposure amount of the position X in the wafer. Fig. 30 is a graph showing the relationship between the pattern size and the exposure amount in the vicinity of the exposure amount D. Based on the measured value of the pattern size, the relationship between the exposure amount and the pattern size is approximated by a linear function. When the pattern size of the position X = X1 is L1, the exposure amount D can be calculated from the relationship of Fig. 30, and the ratio D1/D0 of the exposure amount D0 to the desired pattern size L0 is obtained. The obtained value is multiplied by the exposure amount D - D · (D1/D0), and is the optimum exposure amount of X = X1. Using this program, the optimum exposure amount to be the expected pattern size L0 is obtained for each position X. The result is shown in FIG. Such exposure correction in the exposure area may be a method as shown below if a step-and-scan type exposure apparatus is used. When the light source irradiation energy at the time of exposure is P, the scanning speed is v, and the slit width of the illumination region is s, the exposure amount D and E·(s/v) are salty. From this equation, the relationship between the position X and the scanning speed v in the wafer is obtained. The result is shown in FIG. In this way, the scanning speed v is controlled in the exposure area, and the exposure amount correction can be performed. As described above, under the condition of obtaining the exposure amount, the exposure amount correction condition is calculated to form an exposure area. As a result, the size of the photoresist pattern in the exposed area is uniform -34- This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm)

裝 訂Binding

1300514 A7 B7 五、發明説明(32 ) 性獲得大幅改善。 本實施形態中,圖案尺寸係從上游側朝下游側方向單純 減少的情形,然而,實際情形並非如此。而必須針對各曝光 用遮罩求取圖29所示之晶片内位置X、及顯影後之光阻圖案 尺寸的關係。 另外,晶圓上之曝光區域的位置不同,前述晶片内位置X 、及顯影後之光阻圖案尺寸的關係亦會產生差異。所以,最 好針對各曝光區域求取前述關係,並實施曝光量修正。 此外,本實施形態時,以圖案尺寸測量值為基準,以1次 函數來近似表現爆光量及圖案尺寸之關係,但不限於此。亦 可以尺寸測量值為基準,以多次函數來近似表現其關係亦 具有同樣效果。 (第15實施形態) 參照圖面說明本發明第15實施形態相關之基板處理方法。 第15實施形態係變化曝光區域内實施之曝光量。光蝕刻時之 各步驟的詳細說明因和第11及第12之實施形態重複,故將其 省略。 圖33係逐步掃描方式之投影曝光裝置的構成。照明系(系 統)3301係含有受激準分子雷射光源、光束擴大器、及蠅眼 适鏡(fly eye lens)等。照明3301所照射出來之照明光3302,經由 照射量調整用之ND (NeutrarDensity)濾光器3303及鏡子3304入 射至光束分離器3305。入射之光會分成投影曝光用光3302a、 及監視曝光量用光3302b。投影曝光用光3302a入射至曝光用 遮罩3306。透過曝光用遮罩3306之光,經由縮小投影光學系 -35- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(33 :) 3308複印至晶圓3309。 監視曝光量用光3302b係以曝光量監視單元3311進行監視。 監視結果係經由控制單元3312及濾光器控制單元3313回饋至 照射量調整用ND濾光器3303。曝光用遮罩3306及晶圓3309分 別以曝光用遮罩台3307及晶圓台3310固定。曝光用遮罩台3307 係利用曝光用遮罩台控制單元3312進行控制。晶圓台3310則 利用晶圓台控制單元3313進行控制。ND濾光器3303係利用濾 光器控制單元3314進行控制。晶圓台3310及ND濾光器3303係 經由各控制單元3313及3314以控制單元3315實施控制,係互相 同步掃描。 圖34係照射量調整用之ND濾光器3303透過率分布的模式圖 。求取透過率分布之目的,在於實施前述PEB時之酸蒸發、 再度附著所產生之實質曝光量變動的修正。具有圖34所示之 透過率分布之ND濾光器3303會針對照明光3302實施掃描移動 。利用此方式,可以使入射至曝光用遮罩2006之光量產生如 圖31所示之變化。結果,可以實施曝光區域内之曝光量修正。 在此方式求取之曝光量條件下,計算曝光量修正條件並 形成曝光區域時,可以大幅改善曝光區域内之光阻圖案尺 寸的均一性。 (第16實施形態) ^ 參照圖面說明本發明第16實施形態相關之基板處理方法。 第16實施形態係對應曝光區域之光阻圖案的覆蓋率實施曝 光量修正。 首先,利用旋轉塗佈法在晶圓W上形成當做反射防止膜使 -36- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(34 ) 用之塗佈膜。其次,在215°C、90秒之條件下實施烘乾處理, 形成厚度85 nm之反射防止膜。 在晶圓W上塗佈正型化學放大型光阻後,在1 l〇°C、90秒之 條件下實施預烘。利用此方式,前述反射防止膜上會形成 300 nm厚度之光阻膜。 預烘後,將前述晶圓W冷卻至室溫。其次,將晶圓W移至 以ArF受激準分子雷射(波長193 nm)為光源之逐步曝光裝置。 此時,曝光區域會在ΝΑ=0·55、σ =0.75、及ε =0.67之條件下複 印至晶圓W。以下係針對曝光區域及曝光區域形成方法進行 詳細說明。 圖35係部份曝光區域之模式圖。圖35中之D係曝光區域内 要求最佳尺寸精度的110 nm線及間隔圖案群組。此圖案群組 D存在於光阻覆蓋率各不相同之區域A、B、及C。曝光時之掃 描方向係圖中之從左向右,曝光後實施PEB時之氣流方向則 係圖35中之從上向下。區域A之光阻覆蓋率為60%,區域B之 光阻覆蓋率為30%,區域C之光阻覆蓋率則為0%。此處之光 阻覆蓋率,係以百分比來表現圖案形成後之光阻殘留比率。 如上面所述,PEB處理中產生之蒸發物會再度附著於光阻 表面,而使圖案尺寸產生變動。 因光阻覆蓋率不同,各區域之前述再度附著量亦不同,結 菜,使圖案尺寸產生變動。因此,本實施形態係以下面所示 程序計算修正曝光量。 圖36係曝光量及線尺寸之關係。圖36中,各直線係代表區 域A、區域B、及區域C。這些直線係以1次函數來近似表現圖 -37- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1300514 A7 B7 五、發明説明(35 ) 案測量值。 由圖36之關係分別針對區域A、B、及C求取期望之110 nm 的曝光量條件。結果,區域A為13.63、區域B為13.59、區域C則 為 13.55 mJ/cm2 〇 利用此方式計算之曝光量(能源量)實施區域A、B、及C之 曝光。曝光區域内之曝光量修正方法,在第14及第15實施形 態中已詳細記載,故在此將其省略。 其次,將晶圓W移至PEB處理單元,並在130°C、90秒之條件 下實施加熱處理。PEB處理單元係使用前述第11實施形態記 載.之排氣流沿著晶圓朝一定方向流動者。如圖35所示,PEB 時之排氣流係和曝光時之掃描方向呈90度差異之方向。於PEB 處理後,進行與第1實施形態相同之處理,形成光阻圖案。 顯影後測量曝光區域内之光阻線尺寸的結果,110 nm線及 間隔圖案之面内尺寸誤差,比未實施曝光量條件修正時大 幅降低。 本實施形態中,將曝光時之掃描方向及PEB時之氣流方向 設定為相差90度,然而並不限於此。而必須依據光阻覆蓋率 、以及PEB時之氣流方向及流速,求取圖36所示之曝光量及 圖案尺寸的關係,並計算修正曝光量。 .本實施形態係針對曝光區域内之光阻覆蓋率的修正方法 進行說明,但最好能對期望'之曝光區域間實施修正。而修正 方法方面,最好能如前述實施形態記載所示,PEB時之氣流 方向最好能從上游朝下游方向依序進行。 另外,本實施形態中,係以圖案尺寸測量值為基準,以1 -38- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1300514 A7 B7 五、發明説明(36 ) 次函數來近似表現曝光量及圖案尺寸之關係,但不限於此。 亦可以尺寸測量值為基準,以多次函數來近似表現其關係 亦具有同樣效果。 (第17實施形態) 參照圖面說明本發明第17實施形態相關之基板處理方法。 第17實施形態係以不同於曝光之光照射步驟來實施曝光量 修正。亦即,實施期望圖案複印時之曝光量條件,全部曝光 晶片都為同一條件,其後,對應曝光晶片之位置實施曝光量 調整。 .至曝光為止,和第16實施形態相同。利用曝光,可將130 nm含有孤立線圖案之曝光晶片以縱11 X橫13之配置(晶圓範 圍外之曝光晶片除外)複印至晶圓上並形成潛影。曝光條件 為曝光量15.00 mJ/cm2。 圖37係以曝光量調整為目的之光照射系統的模式圖。.晶圓 W係經由電感式間隔3702載置於台3701上。晶圓W之上空設置 光照射用光源3703。光源3703係由複數之低壓水銀燈所構成 。光源3703會發出照射光3704。照射光3704係經由波長選擇濾 光器(圖上未標示),只發出波長為193 nm之光。波長193 nm之 光會經由遮罩3705照射於晶圓W上。此光照射系統設置於經 埤氮清理之腔室3706内。 圖38係在晶圓上形成之曝'光區域群3801、及修正時照射之 光照射區域3802的位置關係模式圖。如圖39所示,本實施形 態使用之PEB步驟的ΙΈΒ單元,係為排氣流3903從外緣向中心 方向呈放射狀者。因此,只有相對於PEB時之氣流位於最上 -39- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(37 ) 游位置之最外緣曝光區域(圖39中之3902)會照射波長193 nm之 光。照射量條件為0.08 mJ/cm2,此條件係依下面所示程序求 取。3901係下游曝光區域。 圖40係修正時照射之照射量、以及最外緣(最上游)曝光區 域及内緣(下游)曝光區域間之尺寸差的關係圖。從修正照射 量條件及圖案尺寸差之關係,求取圖案尺寸差為〇之照射量 條件。 接著,將晶圓W移至PEB處理單元,在130°C、90秒之條件下 實施加熱處理。如圖39所示,PEB處理單元係使用排氣流從 晶.圓邊緣部朝中心方向呈放射狀者。PEB處理後,實施和第1 實施形態相同之處理,形成光阻圖案。 測量顯影後之光阻線尺寸的結果,130 nm線及間隔圖案之 面内尺寸誤差,比未實施曝光量條件修正時大幅降低。 本實施形態使用之PEB時排氣流係呈放射狀者,但不限於 此。使用氣流為一定方向之PEB單元時,如圖41所示,亦可 以使用較寬之燈做為光源,從晶圓上空斜向照射。圖41中, 4101為光源、4102為晶圓、4103為電感式間隔、4104為台。使 用此種方法時,只要實施修正使其具有圖42之照射量分布即 -口〇 另外,本實施例中,針對只對最上游曝光區域實施修正的 情形進行記載,但不限於此 '。亦可以透過率會變動之濾光器 取代遮罩(圖37之3705)。 此外,本實施形態中,係使用低壓水銀燈做為修正照射時 之光源,但不限於此,亦可使用如雷射之光源。 -40- 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1300514 A7 B7 五、發明説明(38 ) (第18實施形態) 參照圖面說明本發明第18實施形態相關之基板處理方法。 第18實施形態中,全部曝光區域間之期望圖案複印時的曝光 量條件,係為同一條件,然後,對應曝光晶片之位置實施曝 光量調整。曝光量調整則以其他EB照射步驟實施。 利用旋轉塗佈法在晶圓W上形成塗佈電子光束(以下簡稱 為EB)用正型化學放大光阻。其次,在100°C、90秒之條件下實 施烘乾,結果,在晶圓上形成厚度300 nm之光阻膜。 預烘後,將前述晶圓W冷卻至室溫。將晶圓W移至以EB為 曝.光源之圖案複印裝置。此時,如圖43所示·,含有100 nm線 及間隔圖案之曝光區域會在晶圓上複印成縱11 X橫15之配置 ,並形成潛影。晶圓上之曝光區域群可分成晶圓端之未曝光 區域4301及曝光區域4302。 PEB步驟時使用之PEB單元,係使用圖44所示、排氣流4401 沿著晶圓朝一定方向流動者。因此,只會對相對於氣流屬於 最上游位置之曝光區域(圖45中之4501)實施EB照射。此時之 照射量條件以下面所示程序求取。 圖46係未曝光區域之面積(以原有之曝光區域面積為基準) 、及圖案尺寸變動修正之必要EB照射量的關係圖。未曝光區 域之面積愈小,PEB時之酸蒸發量亦會愈少,故需要較多的 照射量。利用此程序,對應耒曝光區域之面積計算出修正上 之必要照射量,再依此條件實施曝光量調整。 其次,將晶圓W移至PEB處理單元,並在110°C、90秒之條件 下實施加熱處理。如圖44所示,PEB處理單元係使用排氣流 -41 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A71300514 A7 B7 V. INSTRUCTIONS (32) Sexuality has been greatly improved. In the present embodiment, the pattern size is simply reduced from the upstream side to the downstream side. However, this is not the case. Further, it is necessary to obtain the relationship between the position X in the wafer shown in Fig. 29 and the size of the photoresist pattern after development for each exposure mask. Further, the positions of the exposed regions on the wafer are different, and the relationship between the position X in the wafer and the size of the photoresist pattern after development also differs. Therefore, it is preferable to obtain the aforementioned relationship for each exposure region and perform exposure correction. Further, in the present embodiment, the relationship between the amount of light emission and the size of the pattern is approximated by a linear function based on the measured value of the pattern size, but the present invention is not limited thereto. It is also possible to measure the value as a reference, and to approximate the relationship by a multiple function has the same effect. (Fifteenth Embodiment) A substrate processing method according to a fifteenth embodiment of the present invention will be described with reference to the drawings. The fifteenth embodiment is for changing the amount of exposure performed in the exposure region. The detailed description of each step in the photolithography is repeated with the eleventh and twelfth embodiments, and therefore will be omitted. Fig. 33 is a view showing the configuration of a projection exposure apparatus of a stepwise scanning method. The illumination system (system) 3301 includes an excimer laser light source, a beam expander, and a fly eye lens. The illumination light 3302 illuminated by the illumination 3301 is incident on the beam splitter 3305 via the ND (Neutrar Density) filter 3303 and the mirror 3304 for adjusting the amount of illumination. The incident light is divided into projection exposure light 3302a and exposure light amount 3302b. The projection exposure light 3302a is incident on the exposure mask 3306. Through the exposure of the mask 3306 light, through the reduced projection optical system -35- This paper scale applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Invention Description (33:) 3308 Copy to Wafer 3309. The monitor exposure amount light 3302b is monitored by the exposure amount monitoring unit 3311. The monitoring result is fed back to the irradiation amount adjustment ND filter 3303 via the control unit 3312 and the filter control unit 3313. The exposure mask 3306 and the wafer 3309 are fixed by the exposure mask table 3307 and the wafer table 3310, respectively. The exposure mask table 3307 is controlled by the exposure mask stage control unit 3312. Wafer stage 3310 is controlled by wafer table control unit 3313. The ND filter 3303 is controlled by the filter control unit 3314. The wafer table 3310 and the ND filter 3303 are controlled by the control unit 3315 via the respective control units 3313 and 3314, and are scanned synchronously with each other. Fig. 34 is a schematic view showing the transmittance distribution of the ND filter 3303 for adjusting the amount of irradiation. The purpose of obtaining the transmittance distribution is to correct the fluctuation of the substantial exposure amount caused by acid evaporation and re-adhesion in the PEB. The ND filter 3303 having the transmittance distribution shown in Fig. 34 performs scanning movement for the illumination light 3302. In this manner, the amount of light incident on the exposure mask 2006 can be changed as shown in Fig. 31. As a result, the exposure amount correction in the exposure region can be performed. Under the condition of the exposure amount obtained in this manner, when the exposure amount correction condition is calculated and the exposure region is formed, the uniformity of the photoresist pattern size in the exposure region can be greatly improved. (16th embodiment) The substrate processing method according to the 16th embodiment of the present invention will be described with reference to the drawings. In the sixteenth embodiment, the exposure amount correction is performed in accordance with the coverage of the photoresist pattern in the exposure region. First, the spin coating method is used on the wafer W as an anti-reflection film to make the -36- paper scale applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 5. Invention Description (34) Use it to coat the film. Next, drying treatment was carried out at 215 ° C for 90 seconds to form an anti-reflection film having a thickness of 85 nm. After applying a positive-type chemically amplified photoresist on the wafer W, pre-baking was performed at 1 l ° C for 90 seconds. In this manner, a photoresist film having a thickness of 300 nm is formed on the aforementioned anti-reflection film. After prebaking, the aforementioned wafer W was cooled to room temperature. Next, the wafer W is moved to a stepwise exposure apparatus using an ArF excimer laser (wavelength 193 nm) as a light source. At this time, the exposed area is overprinted to the wafer W under the conditions of ΝΑ = 0.55, σ = 0.75, and ε = 0.67. The following describes the exposure area and the exposure area forming method in detail. Figure 35 is a schematic view of a portion of the exposed area. In Fig. 35, the 110 nm line and the interval pattern group requiring the best dimensional accuracy in the exposure area of the D system. This pattern group D exists in areas A, B, and C where the photoresist coverage is different. The scanning direction during exposure is from left to right in the figure, and the direction of the airflow when PEB is applied after exposure is from top to bottom in Fig. 35. The photoresist coverage of area A is 60%, the photoresist coverage of area B is 30%, and the photoresist coverage of area C is 0%. The photoresist coverage here is expressed as a percentage of the photoresist residue ratio after pattern formation. As described above, the evaporate generated in the PEB treatment is again attached to the surface of the photoresist, causing variations in the pattern size. Due to the different photoresist coverage, the above-mentioned re-adhesion amount of each region is also different, and the pattern is changed by the vegetable. Therefore, in the present embodiment, the corrected exposure amount is calculated by the procedure shown below. Figure 36 shows the relationship between the amount of exposure and the line size. In Fig. 36, each straight line represents area A, area B, and area C. These straight lines are approximated by a linear function. -37- This paper scale applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) 1300514 A7 B7 V. Invention Note (35) Measurement value. From the relationship of Fig. 36, the desired exposure condition of 110 nm is obtained for the regions A, B, and C, respectively. As a result, the area A was 13.63, the area B was 13.59, and the area C was 13.55 mJ/cm2. The exposure amount (energy amount) calculated in this manner was used to expose the areas A, B, and C. The exposure amount correction method in the exposure region has been described in detail in the fourteenth and fifteenth embodiments, and therefore will not be described here. Next, the wafer W was transferred to a PEB processing unit, and heat treatment was performed at 130 ° C for 90 seconds. The PEB processing unit uses the exhaust gas flow described in the eleventh embodiment to flow along the wafer in a predetermined direction. As shown in Fig. 35, the exhaust flow system at the time of PEB and the scanning direction at the time of exposure are in a direction of a difference of 90 degrees. After the PEB treatment, the same treatment as in the first embodiment was carried out to form a photoresist pattern. As a result of measuring the size of the photoresist line in the exposed area after development, the in-plane dimensional error of the 110 nm line and the interval pattern was greatly reduced as compared with the case where the exposure condition was not corrected. In the present embodiment, the scanning direction at the time of exposure and the airflow direction at the time of PEB are set to be different by 90 degrees, but the present invention is not limited thereto. The relationship between the exposure amount and the pattern size shown in Fig. 36 must be obtained based on the photoresist coverage and the airflow direction and flow rate at the time of PEB, and the corrected exposure amount should be calculated. In the present embodiment, a method of correcting the resist coverage in the exposure region will be described. However, it is preferable to perform correction between the exposure regions which are desired. Further, in terms of the correction method, it is preferable that the direction of the airflow at the time of PEB is preferably sequentially performed from the upstream to the downstream direction as described in the above embodiment. In addition, in this embodiment, based on the measured value of the pattern size, the Chinese National Standard (CNS) A4 specification (210X297 mm) is applied at a scale of 1 - 38 - paper. 1300514 A7 B7 5. Inventive Note (36) Function The relationship between the exposure amount and the pattern size is approximated, but is not limited thereto. It is also possible to measure the value as a reference, and to approximate the relationship by a multiple function has the same effect. (17th embodiment) A substrate processing method according to a 17th embodiment of the present invention will be described with reference to the drawings. In the seventeenth embodiment, the exposure amount correction is performed by a light irradiation step different from the exposure. That is, the exposure amount condition at the time of performing the desired pattern copying is the same condition for all the exposed wafers, and thereafter, the exposure amount adjustment is performed corresponding to the position of the exposed wafer. The exposure is the same as in the sixteenth embodiment. With exposure, a 130 nm exposure wafer with an isolated line pattern can be copied onto the wafer in a vertical 11 X horizontal (except for exposed wafers outside the wafer area) to form a latent image. The exposure conditions are 15.00 mJ/cm2 of exposure. Fig. 37 is a schematic view showing a light irradiation system for the purpose of adjusting the exposure amount. The wafer W is placed on the stage 3701 via the inductive spacing 3702. A light source 3703 for light irradiation is disposed above the wafer W. The light source 3703 is composed of a plurality of low-pressure mercury lamps. Light source 3703 emits illumination light 3704. The illumination light 3704 emits only light having a wavelength of 193 nm via a wavelength selective filter (not shown). Light having a wavelength of 193 nm is irradiated onto the wafer W via the mask 3705. The light illumination system is disposed within a chamber 3706 that is purged by nitrogen. Fig. 38 is a schematic diagram showing the positional relationship between the exposed 'light-area region group 3801' formed on the wafer and the light-irradiated region 3802 irradiated at the time of correction. As shown in Fig. 39, the enthalpy unit of the PEB step used in the present embodiment is such that the exhaust gas stream 3903 is radially outward from the outer edge. Therefore, only the airflow relative to the PEB is at the top -39- This paper scale applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Invention Description (37) The outermost edge of the swim position The region (3902 in Figure 39) illuminates light at a wavelength of 193 nm. The irradiation condition was 0.08 mJ/cm2, and this condition was obtained by the procedure shown below. 3901 is a downstream exposure area. Fig. 40 is a graph showing the relationship between the amount of irradiation irradiated at the time of correction and the difference in size between the outermost (uppermost) exposure area and the inner (downstream) exposure area. From the relationship between the corrected irradiation condition and the pattern size difference, the irradiation amount condition in which the pattern size difference is 〇 is obtained. Next, the wafer W was transferred to a PEB processing unit, and heat treatment was performed at 130 ° C for 90 seconds. As shown in Fig. 39, the PEB processing unit radiates from the edge of the crystal to the center using the exhaust gas flow. After the PEB treatment, the same treatment as in the first embodiment was carried out to form a photoresist pattern. As a result of measuring the size of the photoresist line after development, the in-plane dimensional error of the 130 nm line and the interval pattern was significantly lower than when the exposure condition was not corrected. In the case of the PEB used in the embodiment, the exhaust flow system is radial, but is not limited thereto. When a PEB unit in which the airflow is in a certain direction is used, as shown in Fig. 41, a wider lamp can be used as a light source to obliquely illuminate from above the wafer. In Fig. 41, 4101 is a light source, 4102 is a wafer, 4103 is an inductive interval, and 4104 is a stage. When such a method is used, the correction is performed so as to have the irradiation amount distribution of Fig. 42. Further, in the present embodiment, the case where only the most upstream exposure region is corrected is described, but the invention is not limited thereto. It is also possible to replace the mask with a filter that changes in frequency (Fig. 37, 3705). Further, in the present embodiment, a low-pressure mercury lamp is used as the light source for correcting the irradiation, but the present invention is not limited thereto, and a light source such as a laser may be used. -40- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 1300514 A7 B7 5. Inventive Note (38) (Embodiment 18) A substrate according to an 18th embodiment of the present invention will be described with reference to the drawings. Approach. In the eighteenth embodiment, the exposure conditions at the time of copying a desired pattern between all the exposure regions are the same, and then the exposure amount adjustment is performed in accordance with the position of the exposed wafer. Exposure adjustment is performed in other EB irradiation steps. A positive-type chemically amplified photoresist is formed by forming a coated electron beam (hereinafter abbreviated as EB) on the wafer W by a spin coating method. Next, drying was carried out at 100 ° C for 90 seconds, and as a result, a photoresist film having a thickness of 300 nm was formed on the wafer. After prebaking, the aforementioned wafer W was cooled to room temperature. The wafer W is moved to a pattern copying apparatus that uses EB as an exposure source. At this time, as shown in Fig. 43, the exposed area containing the 100 nm line and the spacer pattern is copied onto the wafer to a vertical 11 X horizontal 15 configuration, and a latent image is formed. The exposed area group on the wafer can be divided into an unexposed area 4301 and an exposed area 4302 at the wafer end. The PEB unit used in the PEB step uses the exhaust stream 4401 to flow along the wafer in a certain direction as shown in FIG. Therefore, EB irradiation is performed only on the exposure region (4501 in Fig. 45) which is the most upstream position with respect to the airflow. The irradiation amount condition at this time is obtained by the procedure shown below. Fig. 46 is a graph showing the relationship between the area of the unexposed area (based on the area of the original exposure area) and the necessary EB irradiation amount for correction of the pattern size variation. The smaller the area of the unexposed area, the less the amount of acid evaporation during PEB, so more exposure is required. With this procedure, the necessary irradiation amount for correction is calculated corresponding to the area of the 耒 exposure area, and the exposure amount adjustment is performed according to this condition. Next, the wafer W was transferred to a PEB processing unit, and heat treatment was performed at 110 ° C for 90 seconds. As shown in Figure 44, the PEB processing unit uses the exhaust stream -41 - This paper scale applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7

沿著晶圓朝—Φ ^ . 处 ' 疋万向流動者β PEB處理後,實施和第1實施形 態相同之處理,形成光阻圖案。 s在曝光區域内測量顯影後之光阻線尺寸的結果,線及間 隔圖术足面内尺寸誤差,比未實施曝光量條件修正時大幅 降低。 、本μ她形怨係針對只對最上游曝光區域實施修正時進行 4明,但不限於此。最好能如第13實施形態之記載,從上游 朝下游方向依序計算修正照射量。 (第19實施形態) .參照圖面說明本發明第19實施形態相關之基板處理方法。 第19實施形態係對應曝光晶片實施顯影時之顯影液吐出條 件的調整。 至曝光為止,和第η實施形態相同。利用曝光,可將I% nm含有孤立線圖案之曝光晶片以縱U>^^13之格狀配置(晶 圓範圍外之曝光晶片除外)複印至晶圓上並形成潛影。在本 貫施形悲中,各曝光晶片之曝光量條件一定。pEB處理步驟 使用如圖65所示、和習知相同的一般加熱裝置。/ 本實施形態中,係為了使圖18所示之前述最上游曝光晶片 1801及前述下游曝光晶片ι801Β之顯影後所形成之光阻圖案 6勺線尺寸相同’而在顯影步驟中實施調整。亦即,調整晶圓 上之光阻圖案的顯影速度,真體而言,係以下面所示方法加 快前述最上游曝光晶片1801A之顯影速度。 使用圖47A及B說明本實施形態之顯影方法。直線狀藥液 供應喷嘴4701,在吐出藥液之同時,從晶圓之一端(圖中之開 -42- 本紙張尺度適用中國國家標準(CNS) A4規格(21〇X297公爱)~" 1300514 A7 B7 五、發明説明(40 ) 始位置P0)掃描至另一端(圖中之結束位置P1)。結果,被處理 基板之整面會形成藥液膜4702。 通常,想要對晶圓面内實施均一之顯影處理時,需固定噴 嘴之吐出量、噴嘴及晶圓之距離、以及噴嘴之掃描速度(分 另1J為1.0 L/min、1.5 mm、120 mm/sec)來形成顯影液膜。其次, 在實施60秒之靜止顯影後,進行清洗處理及旋轉乾燥處理, 形成光阻圖案。 圖48係曝光量、及經過光蝕刻步驟後形成之光阻圖案尺寸 的關係圖。圖48中之實線係代表下游曝光晶片、虛線則代表 最.上游曝光晶片。其關係係藉由測量最上游曝光晶片及下 游曝光晶片之相對於曝光量之尺寸來求取。因為本實施形 態之期望尺寸為150 nm (L0),故所有晶片實施18.36 mJ/cm2 (D) 之曝光。然而,最上游曝光晶片因實質曝光量較少,故尺寸 為 158 nm (L1)。 因為前述理由,最上游曝光晶片之實質曝光量會較少,尺 寸會較大。因此,本實施形態中,對最上游曝光晶片提高藥 液供應噴嘴之顯影液吐出量,增加顯影液供應時之液置換 量。結果,促進顯影,使最上游曝光晶片之尺寸及下游曝光 晶片之尺寸一致。具體方法如下所示。/ 圖49係吐出量及圖案尺寸之關係圖。利用圖49之關係來決 定吐出量。圖49中,實線係卞游曝光晶片時、虛線係最上游 曝光晶片時。此關係之求取上,係變更對以曝光量(D)實施 曝光之被處理基板的吐出量並實施顯影處理,然後測量最 上游曝光晶片及下游曝光晶片之圖案尺寸。標準吐出量之 -43- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(4Γ ) 1.0 L/min (S0)時,下游晶片調整為L0、最上流晶片則調整為L1 。由此關係,實際曝光量較少之最上游晶片以吐出量S1 (1.2 L/min)處理,即可獲得期望尺寸(L0)。 其次,利用圖50及圖51來說明吐出量之具體控制方法。 圖50之5001 (位置P0)係藥液供應喷嘴之供應口接觸晶圓W 之位置。5002 (位置P1)係藥液供應噴嘴之供應口通過最上游 曝光晶片排成一列之部份時的位置。5003 (位置P2)係沒有最 上游曝光晶片之位置。5004 (位置P3)係晶圓W之另一端。 圖51係噴嘴供應口位置及吐出量的關係圖。如圖51所示, 藥.液供應噴嘴之供應口從P0至位置P1以吐出量S1、位置P2以 後以吐出量S0來進行掃描。位置P1至P2之間,實施控制使吐 出量呈直線式從S1減少至S0。位置P1至P2之間的吐出量變化 則不限於此方式,只要能獲得最佳均一性之變化,如二次函 數等之變化亦可。 本實施形態係控制吐出量之方法,但亦可控制晶圓及噴 嘴之距離、以及噴嘴之掃描速度。 圖52係晶圓及噴嘴間之距離(圖中標示為間隙)、及圖案尺 寸之關係圖。圖52中,實線係下游曝光晶片時、虛線則係最 上游曝光晶片時。圖52之關係求取上,係變更對以曝光量¢)) 實施曝光之被處理基板的間隙(1〜2 mm)並實施顯影處理,然 後測量最上游曝光晶片及下游曝光晶片之圖案尺寸。 利用晶圓及噴嘴之距離控制來控制圖案尺寸時,可利用 圖52所示關係來決定最上游曝光晶片上之間隙(G1)。G0係標 準條件之間隙、為1.5 mm 'G1則係最上游曝光晶片之間隙、 -44- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(42 ) 為 1·2 mm 〇 圖53係噴嘴供應口之位置、以及晶圓及喷嘴間之間隙的關 係圖。利用圖52所示之關係,分別將圖53所示之最上游曝光 晶片上及下游曝光晶片上之間隙控制在最佳值,實施喷嘴 掃描。亦即,噴嘴掃描時,藥液供應噴嘴之供應口從位置P0 至位置P1為間隙G卜位置P2以後則為間隙G0。從位置P1至P2 間,控制間隙以直線方式從G1增加至G0。位置P1至P2之間隙 變化則不限於此,只要能獲得最佳均一性之變化,如二次函 數等之變化亦可。 .如上面所述,可以變更間隙來調整顯影速度之理由,係因 為改變液體接觸基板表面時之強度。具體而言,愈強時顯影 會加速,減弱時則會減速。本實施形態中,因為將距離(1〜2 mm)調整為吐出壓直接傳達至基板的距離,故距離愈小時愈 會促進顯影。然而,由另外之實驗可知,當吐出口距離基板 表面為較大之5 mm以上距離,亦會促進顯影。其係因為重力 效果大於吐出壓所致。因此,實施顯影調整之間隙,最好能 配合條件,求取圖案尺寸及間隙關係再進行決定。 圖54係噴嘴掃描速度(掃描速度)及圖案尺寸的關係圖。圖 54之實線係下游曝光晶片時、虛線則係最上游曝光晶片時。 圖54之關係求取上,係變更對以曝光量(D)實施曝光之被處 理基板的噴嘴掃描速度(10(K 140 mm/sec)並實施顯影處理,然 後測量最上游曝光晶片及下游曝光晶片之圖案尺寸。 利用控制噴嘴掃描速度來控制圖案尺寸時,可利用圖54所 示關係來決定最上游曝光晶片上之掃描速度(VI)。V0係標準 -45- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514After the wafer is processed toward the Φ ^ ^ at the Φ ^ ^ , the same treatment as in the first embodiment is performed to form a photoresist pattern. s The result of measuring the size of the photoresist line after development in the exposure area, the in-plane size error of the line and the interval image is greatly reduced when the exposure condition is not corrected. This is a case where the correction is made only for the correction of the most upstream exposure area, but is not limited thereto. Preferably, as described in the thirteenth embodiment, the corrected irradiation amount is sequentially calculated from the upstream to the downstream direction. (19th embodiment) A substrate processing method according to a 19th embodiment of the present invention will be described with reference to the drawings. The nineteenth embodiment is an adjustment of the developing solution discharge condition in the case where development is performed on the exposed wafer. Until the exposure, it is the same as the η embodiment. By exposure, an exposed wafer having an isolated line pattern of 1% nm can be imaged onto the wafer in a lattice configuration of the vertical U> (except for the exposed wafer outside the wafer circle) to form a latent image. In the conventional sorrow, the exposure amount of each exposed wafer is constant. The pEB processing step uses a general heating device as shown in Fig. 65 and is the same as the conventional one. In the present embodiment, the adjustment is performed in the developing step in order to make the photoresist pattern 6 formed by the development of the most upstream exposed wafer 1801 and the downstream exposed wafer ι 801 shown in Fig. 18 the same size. That is, the development speed of the photoresist pattern on the wafer is adjusted, and the development speed of the most upstream exposed wafer 1801A is accelerated in the following manner. The developing method of this embodiment will be described with reference to Figs. 47A and B. The linear chemical liquid supply nozzle 4701 is discharged from the one end of the wafer at the same time as the liquid medicine is discharged (the open-42 in the figure applies the Chinese National Standard (CNS) A4 specification (21〇X297 public)~" 1300514 A7 B7 V. INSTRUCTION DESCRIPTION (40) The start position P0) is scanned to the other end (end position P1 in the figure). As a result, the chemical liquid film 4702 is formed on the entire surface of the substrate to be processed. Generally, when it is desired to perform uniform development processing on the wafer surface, it is necessary to fix the discharge amount of the nozzle, the distance between the nozzle and the wafer, and the scanning speed of the nozzle (1.0 L/min, 1.5 mm, 120 mm, respectively). /sec) to form a developer film. Next, after performing static development for 60 seconds, a cleaning process and a spin drying process were performed to form a photoresist pattern. Figure 48 is a graph showing the relationship between the amount of exposure and the size of the photoresist pattern formed after the photolithography step. The solid line in Figure 48 represents the downstream exposed wafer and the dashed line represents the most upstream exposed wafer. The relationship is determined by measuring the size of the most upstream exposed wafer and the downstream exposed wafer relative to the amount of exposure. Since the desired size of this embodiment is 150 nm (L0), all wafers are exposed to 18.36 mJ/cm2 (D). However, the most upstream exposed wafer has a size of 158 nm (L1) due to the small amount of substantial exposure. For the foregoing reasons, the maximum exposure of the most upstream exposed wafer will be less and the size will be larger. Therefore, in the present embodiment, the developer discharge amount of the chemical supply nozzle is increased for the most upstream exposed wafer, and the liquid replacement amount at the time of supply of the developer is increased. As a result, development is promoted to match the size of the most upstream exposed wafer to the size of the downstream exposed wafer. The specific method is as follows. / Figure 49 is a diagram showing the relationship between the amount of discharge and the size of the pattern. The relationship of Fig. 49 is used to determine the amount of discharge. In Fig. 49, when the solid line is used to illuminate the wafer, the dotted line is the most upstream when the wafer is exposed. In the relationship, the discharge amount of the substrate to be processed exposed by the exposure amount (D) is changed, and development processing is performed, and then the pattern sizes of the most upstream exposed wafer and the downstream exposed wafer are measured. Standard discharge volume -43- This paper scale applies to China National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Invention description (4Γ) 1.0 L/min (S0), downstream wafer is adjusted to L0 The top chip is adjusted to L1. With this relationship, the most upstream wafer having a small actual exposure amount is processed by the discharge amount S1 (1.2 L/min), and the desired size (L0) can be obtained. Next, a specific control method of the discharge amount will be described using FIG. 50 and FIG. 5001 (position P0) of Fig. 50 is a position at which the supply port of the chemical supply nozzle contacts the wafer W. 5002 (Position P1) is the position at which the supply port of the chemical supply nozzle passes through the most upstream exposed wafers in a row. 5003 (Position P2) is the location of the most upstream exposed wafer. 5004 (position P3) is the other end of the wafer W. Fig. 51 is a diagram showing the relationship between the nozzle supply port position and the discharge amount. As shown in Fig. 51, the supply port of the drug supply liquid supply nozzle is scanned by the discharge amount S1 from the P0 to the position P1 by the discharge amount S1 and the position P2. Between the positions P1 and P2, control is performed so that the discharge amount is linearly reduced from S1 to S0. The change in the discharge amount between the positions P1 to P2 is not limited to this mode as long as the change in the optimum uniformity, such as a change in the quadratic function, can be obtained. This embodiment is a method of controlling the discharge amount, but it is also possible to control the distance between the wafer and the nozzle and the scanning speed of the nozzle. Figure 52 is a diagram showing the relationship between the distance between the wafer and the nozzle (shown as a gap in the figure) and the pattern size. In Fig. 52, the solid line is when the wafer is exposed downstream, and the broken line is when the wafer is exposed most upstream. In the relationship of Fig. 52, the gap (1 to 2 mm) of the substrate to be processed which was exposed by the exposure amount )) was changed, and development processing was carried out, and then the pattern sizes of the most upstream exposed wafer and the downstream exposed wafer were measured. When the pattern size is controlled by the distance control of the wafer and the nozzle, the relationship shown in Fig. 52 can be used to determine the gap (G1) on the most upstream exposed wafer. G0 is the standard condition gap, 1.5 mm 'G1 is the gap of the most upstream exposed wafer, -44- This paper scale is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Description of invention (42) is the relationship between the position of the nozzle supply port of the Fig. 53 system and the gap between the wafer and the nozzle. With the relationship shown in Fig. 52, the gaps on the uppermost upstream exposed wafer and the downstream exposed wafer shown in Fig. 53 are controlled to optimum values, and nozzle scanning is performed. That is, when the nozzle is scanned, the supply port of the chemical supply nozzle is the gap G0 from the position P0 to the position P1 after the gap Gb position P2. From position P1 to P2, the control gap is increased from G1 to G0 in a straight line. The change in the gap between the positions P1 and P2 is not limited to this, as long as the change in the optimum uniformity, such as a change in the quadratic function, can be obtained. As described above, the reason why the gap can be changed to adjust the developing speed is to change the strength when the liquid contacts the surface of the substrate. Specifically, the development is accelerated when it is strong, and it is decelerating when it is weak. In the present embodiment, since the distance (1 to 2 mm) is adjusted so that the discharge pressure is directly transmitted to the substrate, the development is promoted as the distance is smaller. However, from another experiment, development is promoted when the discharge port is at a distance of more than 5 mm from the surface of the substrate. It is because the gravity effect is greater than the discharge pressure. Therefore, it is preferable to carry out the development adjustment gap, and it is preferable to determine the pattern size and the gap relationship in accordance with the conditions. Figure 54 is a graph showing the relationship between the nozzle scanning speed (scanning speed) and the pattern size. The solid line in Fig. 54 is when the wafer is exposed downstream, and the broken line is when the wafer is most upstream exposed. In the relationship of Fig. 54, the nozzle scanning speed (10 (K 140 mm/sec) of the substrate to be processed exposed by the exposure amount (D) is changed and development processing is performed, and then the most upstream exposed wafer and the downstream exposure are measured. The pattern size of the wafer. When controlling the pattern scanning speed to control the pattern size, the relationship shown in Figure 54 can be used to determine the scanning speed (VI) on the most upstream exposed wafer. V0 standard -45- This paper scale applies to Chinese national standards. (CNS) A4 size (210 X 297 mm) 1300514

A7 _B7_._ 五、發明説明(43 :) 條件之掃描速度、為120 mm/sec。V1則係最上游曝光晶片之 掃描速度、為110 mm/sec。 利用圖54所示之關係,分別將圖55所示之最上游曝光晶片 上及下游曝光晶片上之掃描速度控制在最佳值,實施噴嘴 掃描。亦即,掃描時,藥液供應噴嘴之供應口從位置P0至位 置P1為掃描速度VI,位置P2以後則為掃描速度V0。從位置P1 至P2間,控制掃描速度以直線方式從VI增加至V0。位置P1至 P2之掃描速度變化則不限於此,只要能獲得最佳均一性之變 化,如二次函數等之變化亦可。 .如上面所述,可以變更掃描速度來調整顯影速度之理由, 係因為改變噴嘴之停滯時間。具體而言,長時間停滯時液體 可充份進行置換,故顯影速度會加快。另一方面,短時間停 滯時則會減速。本實施形態中,因為將依據停滯時間而決定 之液體置換調整為·可控制之範圍内(100〜140 mm/sec),故距離 愈小時愈會促進顯影。然而,由另外之實驗可知,當掃描速 度在200 mm/sec以上時,掃描速度愈大亦會k進顯影。其係 因為噴嘴牵引液體之力量所造成之液流動效果大於停滯時 間所致。因此,實施顯影調整之掃描速度/最好能配合條件 ,求取圖案尺寸及掃描速度關係再進行決定。 .如上面所述,利用下游及最上游曝光晶片時之圖案尺寸、 及控制參數(顯影液之吐出袼件)的關係,決定上游曝光晶片 上之顯影液的吐出條件。只要在該條件下,以和下游曝光晶 片不同之吐出條件實施最上游曝光晶片之顯影即可。 利用此方式求取之吐出量條件實施顯影處理時,可大幅 -46-A7 _B7_._ V. Description of invention (43 :) The scanning speed of the condition is 120 mm/sec. V1 is the scanning speed of the most upstream exposed wafer, which is 110 mm/sec. With the relationship shown in Fig. 54, the scanning speeds on the uppermost upstream exposed wafer and the downstream exposed wafer shown in Fig. 55 are controlled to optimum values, and nozzle scanning is performed. That is, at the time of scanning, the supply port of the chemical supply nozzle is the scanning speed VI from the position P0 to the position P1, and the scanning speed V0 after the position P2. From position P1 to P2, the control scan speed is increased from VI to V0 in a straight line. The change in the scanning speed of the positions P1 to P2 is not limited thereto as long as the change in the optimum uniformity, such as a change in the quadratic function, can be obtained. As described above, the reason why the scanning speed can be changed to adjust the developing speed is to change the dead time of the nozzle. Specifically, the liquid can be sufficiently replaced at a long time of stagnation, so that the development speed is increased. On the other hand, it will decelerate when it is stopped for a short time. In the present embodiment, since the liquid replacement determined in accordance with the stagnation time is adjusted to a controllable range (100 to 140 mm/sec), the development becomes better as the distance becomes smaller. However, from another experiment, when the scanning speed is 200 mm/sec or more, the scanning speed is increased, and the development is also performed. This is because the fluid flow caused by the force of the nozzle pulling liquid is greater than the stagnant time. Therefore, the scanning speed of the development adjustment/the best matching condition can be obtained, and the relationship between the pattern size and the scanning speed can be determined. As described above, the discharge condition of the developer on the upstream exposed wafer is determined by the relationship between the pattern size at the time of the downstream and the most upstream exposure of the wafer and the control parameter (the discharge member of the developer). It is only necessary to carry out development of the most upstream exposed wafer under the conditions of discharge different from the downstream exposure wafer under this condition. When the development processing is performed by the discharge amount condition obtained by this method, it can be greatly -46-

袭 訂Attack

本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(44 ) 改善曝光區域間之光阻圖案尺寸的均一性。 (第20實施形態) 參照圖面說明本發明第20實施形態相關之基板處理方法。 第20實施形態係對應曝光晶片實施顯影步騾之顯影液濃度 的調整。亦即,和第19實施形態相同,係為了使圖18所示之 前述最上游曝光晶片1801A及前述下游曝光晶片1801B之光阻 圖案的線尺寸相同,而實施顯影速度之調整。具體而言,係 以下面所示方法加快前述最上游曝光晶片1801A之顯影速度。 和第11實施形態相同,在晶圓W上形成厚度60 nm之反射防 止.膜,並在此反射防止膜上形成300 nm之光阻膜。 其次,經過和第1實施形態相同之曝光步驟,將110 nm含有 線及間隔圖案之曝光晶片以縱11X橫13之格叙配置(晶圓範圍 外之曝光晶片除外)複印至晶圓上並形成潛影。本實施形態 所使用之曝光裝置,係以ArF受激準分子雷射(波長193 nm)為 光源。各曝光晶片之曝光量條件一定。 如使用圖47A及B說明之第19實施形態所示,形成光阻圖案 。如圖48所示,因為本實施形態之期望尺寸為110 nm (L0), 故全部晶片係以25.3 mJ/cm2 (D)進行曝光。然而,最上游曝光 晶片之尺寸為120 nm (L1)。因此,提高最上游曝光晶片之顯 影液濃度。結果,可促進顯影,使最上游曝光晶片之尺寸及 下游曝光晶片之尺寸一致。真體方法如下所示。 圖56A及B係顯影液之塗佈方法。圖56A及B中,5601係最上 游曝光晶片、5602則係下游曝光晶片。靜止顯影中,利用氣 流吹附噴嘴5603、5604將氣流5605吹向最上游曝光晶片5601。 -47- ' 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) A7 B7 1300514 五、發明説明(45 ) 利用此方式,可蒸發部份水份,提高顯影液之濃度。此氣流 吹附噴嘴因為只從5603吹附氣流5605,故可只對最上游曝光 晶片吹附氣流。5606係顯影液。 若只利用氣流,蒸發之水份的量會有限度。因此,在吹附 氣流之前,先調整液體之厚度。亦即,以圖57A所示方式供 應顯影液5701A。其次,如圖57B所示,以150 rpm將晶圓W旋 轉2秒鐘,形成圖57C所示之150 μιη液厚的薄膜5701B。然後, 再以氣流吹附噴嘴吹附氣流。因使液厚從1 mm減少至150 μπι ,故相同蒸發量時亦可大幅改變濃度。 .圖58係曝光量、及經過光蝕刻步驟形成之光阻圖案尺寸的 關係圖。圖58中,實線係下游曝光晶片時、虛線係最上游曝 光晶片時。下面係以圖58說明決定氣流之吹附流量的方法。 此處,以吹附流量為變數,將噴嘴及晶圓之距離固定為15 mm。標準條件之流量為F0 (0 L/min)、下游晶片為L0、最上游 晶片為L1。利用此關係,若以流量F1 (0.9 L/min)處理實際曝光 量較少之最上游晶片,可獲得期望尺寸(L0)。 如上面所述,利用下游及最上游曝光晶片時之圖案尺寸、 及氣流流量的關係,決定上游曝光晶片上之氣流流量,使下 游曝光晶片及最上游曝光晶片之尺寸相等。並在該條件下, 實施顯影。 利用此方式求取之氣流條件實施顯影處理時,可大幅改 善曝光區域間之光阻圖案尺寸的均一性。 (第21實施形態) 參照圖面說明本發明第21實施形態相關之基板處理方法。 -48- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(46 ) 第21實施形態係對應曝光晶片,改變顯影步驟之顯影液溫度 。結果,可促進顯影,使最上游曝光晶片及下游曝光晶片之 圖案尺寸一致。本實施形態所使用之光阻、顯影液組合,在 溫度愈高時其顯影速度會愈快。故提高最上游曝光晶片之 顯影液溫度,可以促進顯影。具體而言,利用下面所示方法 ,可以加快圖18所示之最上游曝光晶片1801A的顯像速度。 至曝光為止,和第11實施形態相同。其次,如圖59A及B所 示,在靜止顯影中,從晶圓下面利用熱板5903、5904對最上游 曝光晶片5901實施加熱,提高顯影液之溫度。因只對熱板 5903通電,故可只對最上游曝光晶片5901進行加熱。 圖60係顯影液之溫度及圖案尺寸之關係圖。圖60之實線係 下游曝光晶片時、虛線則係最上游曝光晶片時。下面係利用 圖60說明溫度之決定方法。形成顯影液膜後,在形成液膜之 10秒後至40秒間將加熱至一定溫度之熱板接觸晶圓背面。標 準條件之溫度為TO (23°C)、下游晶片為L0、最上游晶片為L1 。利用此關係,若以實施最上游晶片之熱板溫度T1 (28°C)的 處理,可獲得期望尺寸(L0)。 如上面所述,利用下游及最上游曝光晶片時之圖案尺寸、 及熱板溫度的關係,決定上游曝光晶片之熱板溫度,使下游 曝光晶片及最上游曝光晶片之尺寸相等。並在該條件下,實 施顯影。 此外,正型光阻時,若降低顯影液溫度會使顯影速度變快 ,則調整熱板溫度使最上游曝光晶片之顯影液溫度降低。 另外,本實施例中係從晶圓背面利用熱板實施加熱方式 -49- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(47 ) 來調整溫度,但亦可利用燈加熱器從晶圓上面實施加熱。 利用此方式求取之氣流條件實施顯影處理時,可大幅改 善曝光區域間之光阻圖案尺寸的均一性。 (第22實施形態) 參照圖面說明本發明第22實碑形態相關之基板處理方法。 第22實施形態係以使顯影液之吐出量呈現平均分布狀態來 調整顯影速度。曝光後之加熱步驟(PEB處理步驟)的氣流方 向,係和第19〜第21實施形態不同,具體而言,如圖39所示, 氣流從基板之外緣流向中心。 .基於上述理由,顯影後形成之光阻圖案的線尺寸方面,最 上游曝光晶片3902會大於下游曝光晶片3901。因此,為了使 最上游曝光晶片3902及下游曝光晶片3901之顯影後所形成之 光阻圖案線尺寸相等,調整晶圓上之光阻圖案的顯影速度。 具體而言,即利用下面所示方法加快前述最上游曝光晶片 3902之顯影速度。 至曝光為止,和第11實施形態相同。其次,如圖61A及B所 示,使直線狀藥液供應噴嘴6101大約停止於晶圓之中心位置 ,在吐出藥液之狀態旋轉晶圓W。結果,在被處理基板上形 成藥液膜6103。此時,噴嘴之吐出量、喷嘴及晶圓之距離、 #及基板之旋轉數為1.0 L/min、1.5 mm、以及40 rpm。其次, 在60秒靜止顯影後,實施清理處理及旋轉乾燥處理,形成均 一之光阻圖案。 為了使晶圓面内能獲得均一之處理,如圖62A及B所示,直 徑方向之吐出量呈現平均分布,可使單位面積獲得相同的 -50- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(48 ) 供應量。圖62A及B中,6202A係最上游曝光晶片、6202B係下 游曝光晶片。具體而言,如圖62C之實線所示,配合和中心 之距離來增加吐出量。 如第19實施形態所示,經過一般曝光步驟時,會成為圖48 所示之曝光量及光阻線尺寸的關係。因此,本實施形態中, 係如圖62C之虛線所示,將最上游曝光晶片之吐出量設定為 大於均一處理條件之吐出量(實線)。利用此方式,最上游曝 光晶片之尺寸可以和下游曝光晶片之尺寸一致。 如上面所述,最上游曝光晶片之顯影液的設定吐出量大 於均一處理時之設定量。利用此方式,最上游曝光晶片之顯 影速度會變快,而使最上游曝光晶片之尺寸和下游曝光晶 片之尺寸一致。 此外,本實施例中,係變更藥液供應噴嘴之吐出量來使最 上游曝光晶片及下游曝光晶片的顯影速度相同,但亦可如 第20實施形態所示,採取改變濃度方式。此時,亦可以氣流 吹附噴嘴5603、5604來吹附氣流。另外,如第21實施形態所示 ,亦可採取改變溫度方式。此時,以熱板5903、5904加熱即可。 利用此方式求取之氣流條件實施顯影處理時,可大幅改 善曝光區域間之光阻圖案尺寸的均一性。 (第23實施形態) 參照圖面說明本發明第23實施形態相關之基板處理方法。 第23實施形態係利用親水化處理來調整顯影速度。亦即,如 圖39所示,使最上游曝光區域3902較下游曝光區域3901更為 親水化。結果,最上游曝光區域3902之顯影速度會變快。具 -51 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1300514 A7 B7 五、發明説明(49 ) 體方法如下所示。又,PEB處理步驟之氣流方向和第22實施 形態相同。· 至曝光為止,和第11實施形態相同。其次、如圖47A及B所 示,在供應顯影液之前,以直噴嘴4702供應溶解1 ppm之臭氧 分子的臭氧水。結果,光阻膜表面可獲得親水化處理。臭氧 水在5 ppm以下即可。 如圖63所示,使晶圓W處於500 rpm之旋轉狀態下,將直噴 嘴位於基板之中心(圖中之6301)。此時,從直噴嘴吐出1秒鐘 之臭氧水。吐出狀態下,以100 mm/sec向外緣部移動(圖中之 6302)。此時,使直噴嘴維持一定時間(下面稱之為外緣部之 停滯時間)靜止。對外緣部提供更多臭氧水:,使外緣部更為 親水化。經過一定時間後,停止臭氧水之吐出,以旋轉基板 方式使基板乾燥。 其後,如圖47A及B所示,利用直線狀藥液供應噴嘴4702, 在吐出藥液之狀態,使其從晶圓W之一端(圖中之開始位置) 掃描至另一端(圖中之結束位置)。結果,在晶圓W上形成藥 液膜4702。固定噴嘴之吐出量、噴嘴及晶圓間之距離、及噴 嘴之掃描速度(分別為1.0 L/min、1.5 mm、及120 mm/sec),形成 顯影液膜。然後,實施60秒之靜止顯影、清理處理、及旋轉 乾燥處理,形成光阻圖案。 如圖48所示,因本實施形態之期望尺寸為150 nm (L0),全 部晶片實施17.5 mJ/cm2 〇D)之曝光。然而,因最上游曝光晶片 之實際曝光量較少,故尺寸為158 nm(Ll)。故以外緣部停滯時 間之最佳化來合尺寸一致。 -52- 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1300514 A7 B7 五、發明説明(50 ) 圖64係最上游曝光晶片之外緣部停滯時間及圖案尺寸的 關係。停滯時間t0 (=0秒)之條件下,下游晶片為L0、最上游 晶片為L1。由此關係,可知以停滯時間.tl (=3秒)處理,可以 得到期望尺寸(L0)。 如上面所述,使最上游曝光晶片之光阻表面的更為親水 化,可以加快最上游曝光晶片之顯影速度。結果,最上游曝 光晶片之尺寸可以和下游曝光晶片之尺寸一致。 本實施形態中,使用臭氧水來實現親水化,但不限於此。 亦可使用純水及氧化性液體之氧水、一氧化碳水、及過氧化 氫水等具有親水化效果者。 第18、第22、及第23之實施形態中,針對PEB時之排氣流為 同一方向者進行說明,但不限於此。不論使用之PEB單元是 從晶圓外緣向中心、或從中心向外緣之放射狀氣流,皆可利 用相同程序得到修正。 第19及第21〜第23實施形態中,係以KrF受激準分子雷射用 化學放大型光阻為例。然而,並不限於此。亦即,亦可使用 ArF光阻。在第20實施形態中,係以ArF受激準分子雷射用化 學放大型光阻為例。但是,並不限於此。亦即,亦可使用KrF 光阻。此外,第19〜第23之實施形態亦可使用F2光阻、EB光阻 -、及EUV光阻等。 第1〜第23之實施形態中,針對140 nm之孤立線圖案、及線 及間隔圖案進行說明,但並不限於此。亦可使用於洞圖案等 之形成上。 第1〜第23之實施形態中,曝光時係使用受激準分子雷射。 -53- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明(52 322 平曝光區域 401 間隔部 402 線部 730 熱源 731 鹵素燈 732 光導引 940 吸著構件 1107 近接板 1109 加熱器 1207 板構件 1209 配水管 1450 電極構件 1801 曝光晶片 1801A 最上游曝光晶片 1801B 下游曝光晶片 1802 氣流 1803 缺口 2006 曝光用遮罩 .2601 氣流 2602A 最上游曝光區域 2602B . 次下游曝光區域 2801 氣流: 3301 照明系(系統) 3302 照明光 3302a 投影曝光用光 3302b 監視曝光量用光 3303 ND濾光器 3304 鏡子 3305 光束分離器 3306 曝光用遮罩 3307 曝光用遮罩台 3308 縮小投影光學系 3309 晶圓 3310 晶圓台 3311 曝光量監視單元 3312 控制單元、曝光用遮罩台控制單元 3313 濾光器控制單元、 晶圓台控制單元 3314 濾光器控制單元’ 3315 控制單元 3701 台 3702 電感式間隔 3703 光源 3704 照射光 3705 遮罩 3706 腔室 -55- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A7 B7 五、發明説明 (53 ) 3801 曝光區域群 3802 光照射區域 3901 下游曝光區域 3902 最外緣曝光區域 、最上游曝光晶片 3903 排氣流 4101 光源 4102 晶圓 4103 電感式間隔 4104 台 4301 未曝光區域 4302 曝光區域 4401 排氣流 4501 曝光區域 4701 藥液供應噴嘴 4702 藥液膜、直噴嘴 5601 最上游曝光晶片 .5602 下游曝光晶片 5603 氣流吹附噴嘴 5604 氣流吹附噴嘴 5605 氣流 5606 顯影液 5701A 顯影液 5701B 薄膜 5901 最上游曝光晶片 5903 熱板 5904 熱板. 6101 直線狀藥液供應噴嘴6103 藥液膜 6202A 最上游曝光晶片 6202B 下游曝光晶片 6500 腔室 6501 空氣導入口 6502 排氣口 6503 灼熱板 6504 氣流 6705 曝光晶片 ARM 晶圓搬送臂 G 間隙 P 電源 ' P0 開始位置 P1 結束位置 TW1 塔 TW2 塔 Y07 近接板 -56- 本紙張尺度適用中國國家標準(CNS) A4規格(210 x 297公釐)This paper scale applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Inventive Note (44) Improve the uniformity of the size of the photoresist pattern between exposed areas. (Twentyth Embodiment) A substrate processing method according to a twentieth embodiment of the present invention will be described with reference to the drawings. The twentieth embodiment is an adjustment of the developer concentration corresponding to the development step of the exposed wafer. That is, similarly to the nineteenth embodiment, the development speed is adjusted so that the line sizes of the photoresist patterns of the most upstream exposed wafer 1801A and the downstream exposed wafer 1801B shown in Fig. 18 are the same. Specifically, the development speed of the aforementioned most upstream exposed wafer 1801A is accelerated by the method shown below. In the same manner as in the eleventh embodiment, a reflection preventing film having a thickness of 60 nm was formed on the wafer W, and a photoresist film of 300 nm was formed on the antireflection film. Next, after exposing the same exposure step as in the first embodiment, the 110 nm exposed wafer having the line and space pattern is arranged on the vertical 11X horizontal 13 (except for the exposed wafer outside the wafer range) and is formed on the wafer. Latent shadow. The exposure apparatus used in the present embodiment is an ArF excimer laser (wavelength: 193 nm) as a light source. The exposure amount of each exposed wafer is constant. As shown in the nineteenth embodiment described with reference to Figs. 47A and B, a photoresist pattern is formed. As shown in Fig. 48, since the desired size of this embodiment is 110 nm (L0), all wafers are exposed at 25.3 mJ/cm2 (D). However, the size of the most upstream exposed wafer is 120 nm (L1). Therefore, the developer concentration of the most upstream exposed wafer is increased. As a result, development can be promoted to match the size of the most upstream exposed wafer to the size of the downstream exposed wafer. The body method is as follows. Fig. 56A and B are a method of coating a developing solution. In Figs. 56A and B, 5601 is the most upstream exposure wafer, and 5602 is the downstream exposure wafer. In the still development, the air flow 5605 is blown toward the most upstream exposure wafer 5601 by the air blowing nozzles 5603, 5604. -47- ' This paper scale applies to China National Standard (CNS) A4 specification (210 X 297 mm) A7 B7 1300514 V. Invention description (45) With this method, part of the water can be evaporated to increase the concentration of the developer. Since this airflow blowing nozzle blows the airflow 5605 only from 5603, it is possible to blow the airflow only to the most upstream exposure wafer. 5606 system developer. If only the airflow is used, there is a limit to the amount of water that can be evaporated. Therefore, adjust the thickness of the liquid before blowing it. That is, the developer 5701A is supplied in the manner shown in Fig. 57A. Next, as shown in Fig. 57B, the wafer W was rotated at 150 rpm for 2 seconds to form a film 5701B having a liquid thickness of 150 μm as shown in Fig. 57C. Then, the airflow is blown by the air blowing nozzle. Since the liquid thickness is reduced from 1 mm to 150 μπι, the concentration can be greatly changed by the same evaporation amount. Figure 58 is a graph showing the relationship between the amount of exposure and the size of the photoresist pattern formed by the photolithography step. In Fig. 58, the solid line is when the wafer is exposed downstream, and the broken line is the most upstream exposure of the wafer. Next, a method of determining the flow rate of the airflow will be described with reference to FIG. Here, the distance between the nozzle and the wafer is fixed to 15 mm with the flow rate of the blowing. The standard condition flow rate is F0 (0 L/min), the downstream wafer is L0, and the most upstream wafer is L1. With this relationship, if the most upstream wafer having a small actual exposure amount is processed at the flow rate F1 (0.9 L/min), the desired size (L0) can be obtained. As described above, the flow rate of the upstream exposed wafer is determined by the relationship between the pattern size at the downstream and the most upstream exposure of the wafer, and the flow rate of the gas flow, so that the dimensions of the downstream exposed wafer and the most upstream exposed wafer are equal. Under this condition, development was carried out. When the development process is carried out by the airflow conditions determined by this method, the uniformity of the size of the photoresist pattern between the exposed regions can be greatly improved. (21st embodiment) A substrate processing method according to a 21st embodiment of the present invention will be described with reference to the drawings. -48- This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Inventive Note (46) The 21st embodiment corresponds to exposing the wafer and changing the developer temperature in the development step. As a result, development can be promoted to make the pattern sizes of the most upstream exposed wafer and the downstream exposed wafer uniform. The combination of the photoresist and the developer used in the present embodiment has a higher development speed at a higher temperature. Therefore, the development temperature of the most upstream exposed wafer can be increased to promote development. Specifically, the development speed of the most upstream exposed wafer 1801A shown in Fig. 18 can be accelerated by the method shown below. It is the same as that of the eleventh embodiment until the exposure. Next, as shown in Figs. 59A and B, in the still development, the most upstream exposed wafer 5901 is heated from the lower surface of the wafer by the hot plates 5903 and 5904 to raise the temperature of the developer. Since only the hot plate 5903 is energized, only the most upstream exposed wafer 5901 can be heated. Figure 60 is a graph showing the relationship between the temperature of the developer and the pattern size. The solid line in Fig. 60 is when the wafer is exposed downstream, and the broken line is when the wafer is most upstream exposed. The method of determining the temperature will be described below using Fig. 60. After the developer film was formed, a hot plate heated to a certain temperature was brought into contact with the back surface of the wafer 10 seconds to 40 seconds after the formation of the liquid film. The standard conditions are TO (23 ° C), the downstream wafer is L0, and the most upstream wafer is L1. With this relationship, the desired size (L0) can be obtained by performing the processing of the hot plate temperature T1 (28 ° C) of the most upstream wafer. As described above, the temperature of the hot plate of the upstream exposed wafer is determined by the relationship between the pattern size when the wafer is exposed downstream and most upstream, and the temperature of the hot plate, so that the dimensions of the downstream exposed wafer and the most upstream exposed wafer are equal. Under these conditions, development was carried out. Further, in the case of a positive photoresist, if the developer temperature is lowered to increase the development speed, the temperature of the hot plate is adjusted to lower the temperature of the developer of the most upstream exposed wafer. In addition, in this embodiment, the heating method is performed from the back side of the wafer by using a hot plate-49- The paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 5. Invention description (47) The temperature is adjusted, but the heater can also be used to heat from the wafer. When the development process is carried out by the airflow conditions determined by this method, the uniformity of the size of the photoresist pattern between the exposed regions can be greatly improved. (Twenty-second embodiment) A substrate processing method according to the twenty-th aspect of the present invention will be described with reference to the drawings. In the twenty-second embodiment, the developing speed is adjusted so that the discharge amount of the developer is in an average distribution state. The air flow direction in the heating step (PEB processing step) after the exposure is different from that in the 19th to 21st embodiments. Specifically, as shown in Fig. 39, the air current flows from the outer edge of the substrate to the center. For the above reasons, the most upstream exposed wafer 3902 will be larger than the downstream exposed wafer 3901 in terms of the line size of the photoresist pattern formed after development. Therefore, in order to make the size of the photoresist pattern lines formed after development of the most upstream exposed wafer 3902 and the downstream exposed wafer 3901 are equal, the development speed of the photoresist pattern on the wafer is adjusted. Specifically, the development speed of the aforementioned most upstream exposed wafer 3902 is accelerated by the method shown below. It is the same as that of the eleventh embodiment until the exposure. Next, as shown in Figs. 61A and B, the linear chemical supply nozzle 6101 is stopped at the center of the wafer, and the wafer W is rotated while the chemical is being discharged. As a result, the chemical liquid film 6103 is formed on the substrate to be processed. At this time, the discharge amount of the nozzle, the distance between the nozzle and the wafer, and the number of rotations of the substrate and the substrate were 1.0 L/min, 1.5 mm, and 40 rpm. Next, after 60 seconds of static development, a cleaning treatment and a spin drying treatment were carried out to form a uniform photoresist pattern. In order to achieve uniform processing in the wafer surface, as shown in Figs. 62A and B, the discharge amount in the diameter direction is evenly distributed, so that the same -50-sheet scale can be obtained per unit area for the Chinese National Standard (CNS) A4. Specifications (210 X 297 mm) 1300514 A7 B7 V. Description of invention (48) Supply. In Figs. 62A and B, 6202A is the most upstream exposed wafer, and the 6202B is a downstream exposed wafer. Specifically, as shown by the solid line in Fig. 62C, the distance between the fit and the center increases the discharge amount. As shown in the nineteenth embodiment, when the general exposure step is performed, the relationship between the exposure amount and the size of the photoresist line shown in Fig. 48 is obtained. Therefore, in the present embodiment, as shown by the broken line in Fig. 62C, the discharge amount of the most upstream exposed wafer is set to be larger than the discharge amount (solid line) of the uniform processing condition. In this way, the size of the most upstream exposed wafer can be the same as the size of the downstream exposed wafer. As described above, the set discharge amount of the developer of the most upstream exposed wafer is larger than the set amount at the time of uniform processing. In this manner, the development speed of the most upstream exposed wafer will be faster, and the size of the most upstream exposed wafer will be the same as the size of the downstream exposed wafer. Further, in the present embodiment, the discharge amount of the chemical liquid supply nozzle is changed to make the development speeds of the most upstream exposed wafer and the downstream exposed wafer the same. However, as shown in the twentieth embodiment, the concentration adjustment method may be adopted. At this time, it is also possible to blow the nozzles 5603, 5604 by airflow to blow the airflow. Further, as shown in the twenty-first embodiment, a temperature changing method can also be adopted. At this time, it is sufficient to heat the hot plates 5903 and 5904. When the development process is carried out by the airflow conditions determined by this method, the uniformity of the size of the photoresist pattern between the exposed regions can be greatly improved. (Twenty-third embodiment) A substrate processing method according to a twenty-third embodiment of the present invention will be described with reference to the drawings. In the twenty-third embodiment, the development speed is adjusted by the hydrophilization treatment. That is, as shown in Fig. 39, the most upstream exposure region 3902 is made more hydrophilic than the downstream exposure region 3901. As a result, the development speed of the most upstream exposure region 3902 becomes faster. -51 - This paper size is applicable to China National Standard (CNS) A4 specification (210X 297 mm) 1300514 A7 B7 V. Invention description (49) The body method is as follows. Further, the flow direction of the PEB treatment step is the same as that of the twenty-second embodiment. - It is the same as the eleventh embodiment until the exposure. Next, as shown in Figs. 47A and B, ozone water in which 1 ppm of ozone molecules are dissolved is supplied as a straight nozzle 4702 before the supply of the developer. As a result, the surface of the photoresist film can be hydrophilized. Ozone water can be below 5 ppm. As shown in Fig. 63, the wafer W was placed at a rotation of 500 rpm, and the direct nozzle was placed at the center of the substrate (6301 in the figure). At this time, ozone water was discharged from the straight nozzle for 1 second. In the spit out state, move to the outer edge at 100 mm/sec (6302 in the figure). At this time, the straight nozzle is kept stationary for a certain period of time (hereinafter referred to as the stagnation time of the outer edge portion). Provide more ozone water to the outer edge: make the outer edge more hydrophilic. After a certain period of time, the discharge of ozone water is stopped, and the substrate is dried by rotating the substrate. Then, as shown in FIGS. 47A and B, the linear chemical supply nozzle 4702 is used to scan the liquid medicine from one end of the wafer W (the starting position in the drawing) to the other end (in the figure). End position). As a result, a liquid film 4702 is formed on the wafer W. The discharge amount of the fixed nozzle, the distance between the nozzle and the wafer, and the scanning speed of the nozzle (1.0 L/min, 1.5 mm, and 120 mm/sec, respectively) form a developer film. Then, a still development, a cleaning treatment, and a spin drying treatment for 60 seconds were carried out to form a photoresist pattern. As shown in Fig. 48, since the desired size of the present embodiment is 150 nm (L0), the entire wafer is exposed to 17.5 mJ/cm2 (D). However, since the actual exposure amount of the most upstream exposed wafer is small, the size is 158 nm (Ll). Therefore, the optimization of the stagnation time at the outer edge is consistent. -52- This paper scale applies to Chinese National Standard (CNS) A4 specification (210X 297 mm) 1300514 A7 B7 V. Inventive Note (50) Figure 64 shows the relationship between the dead time and pattern size of the outermost edge of the most upstream exposed wafer. Under the condition of dead time t0 (=0 sec), the downstream wafer is L0 and the most upstream wafer is L1. From this relationship, it can be seen that the desired size (L0) can be obtained by the dead time .tl (=3 seconds). As described above, making the photoresist surface of the most upstream exposed wafer more hydrophilic can speed up the development of the most upstream exposed wafer. As a result, the size of the most upstream exposed wafer can be the same as the size of the downstream exposed wafer. In the present embodiment, hydrophilization is achieved using ozone water, but is not limited thereto. Hydrophilic effects such as oxygen water, carbon monoxide water, and hydrogen peroxide water in pure water and oxidizing liquid can also be used. In the eighteenth, twenty-secondth, and twenty-third embodiments, the exhaust flow in the case of PEB is the same direction, but the invention is not limited thereto. Regardless of whether the PEB unit used is a radial flow from the outer edge of the wafer to the center or from the center to the outer edge, the same procedure can be used to correct it. In the 19th and 21st to 23rd embodiments, a chemical amplification type resist for a KrF excimer laser is taken as an example. However, it is not limited to this. That is, an ArF photoresist can also be used. In the twentieth embodiment, a chemically amplified resist of ArF excimer laser is taken as an example. However, it is not limited to this. That is, KrF photoresist can also be used. Further, in the 19th to 23rd embodiments, F2 photoresist, EB photoresist, and EUV photoresist can be used. In the first to twenty-third embodiments, the isolated line pattern of 140 nm, and the line and space pattern are described, but the invention is not limited thereto. It can also be used for the formation of a hole pattern or the like. In the first to twenty-third embodiments, an excimer laser is used for exposure. -53- This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A7 B7 V. Invention description (52 322 flat exposure area 401 spacer 402 line part 730 heat source 731 halogen lamp 732 light guide 940 absorbing member 1107 splicing plate 1109 heater 1207 plate member 1209 water distribution pipe 1450 electrode member 1801 exposure wafer 1801A most upstream exposure wafer 1801B downstream exposure wafer 1802 air flow 1803 notch 2006 exposure mask .2601 air flow 2602A most upstream exposure area 2602B. Sub-downstream exposure area 2801 Airflow: 3301 Illumination system (system) 3302 Illumination light 3302a Projection exposure light 3302b Exposure exposure light 3303 ND filter 3304 Mirror 3305 Beam splitter 3306 Exposure mask 3307 Exposure mask table 3308 Reduced projection optical system 3309 Wafer 3310 Wafer stage 3311 Exposure amount monitoring unit 3312 Control unit, exposure mask stage control unit 3313 Filter control unit, wafer table control unit 3314 Filter control unit '3152 Control unit 3701 Taiwan 3702 Inductive Space 3703 Light Source 3704 Illumination 3705 Mask 3706 Chamber-55- This paper size is applicable to China National Standard (CNS) A4 size (210 X 297 mm) 1300514 A7 B7 V. Invention description (53) 3801 Exposure area group 3802 Light irradiation area 3901 Downstream exposure area 3902 outermost exposed area, most upstream exposed wafer 3903 exhaust flow 4101 light source 4102 wafer 4103 inductive interval 4104 stage 4301 unexposed area 4302 exposure area 4401 exhaust flow 4501 exposure area 4701 chemical supply nozzle 4702 liquid film, Straight nozzle 5601 Maximum upstream exposure wafer. 5602 Downstream exposure wafer 5603 Airflow blowing nozzle 5604 Airflow blowing nozzle 5605 Airflow 5606 Developer liquid 5701A Developer 5701B Film 5901 Maximum upstream exposure wafer 5903 Hot plate 5904 Hot plate. 6101 Linear liquid supply Nozzle 6103 Liquid film 6202A Upstream exposure chip 6202B Downstream exposure chip 6500 Chamber 6501 Air inlet 6502 Vent 6503 Burning plate 6504 Airflow 6705 Exposure chip ARM Wafer transfer arm G Clearance P Power supply 'P0 Start position P1 End position TW1 Tower TW2 Tower Y07 Proximity Plate -56- Paper Of the applicable Chinese National Standard (CNS) A4 size (210 x 297 mm)

Claims (1)

13005 1轉_132340號專利申請案 A8 中文申請專利範圍替換本(94年U月爲13005 1 turn _132340 patent application A8 Chinese patent application scope replacement (94 U month is 申请專禾圍 会告象丨 一—•塗佈膜之加熱裝置,其特徵為包本 腔室,其具有内部空間; 加熱板,其具有在前述腔室内支撐具有塗饰層之被處 理基板的載置面,且用以加熱前述被處理基板,· 、區隔構件,其係以和前述載置面相對之方式配置於前 述腔1内邵,七述區隔構件將前述内部空間分割成第 第2空間,並具有連通前述第丨及第2空間之複數孔,而前 述載置面配置於前述第1空間内;及 氣流形成機構:其係在前述第2空間内之一侧面部上 汉置空氣導入口,並於對向之另一侧面部上設置連接於 排氣機構之排氣口,而形成從前述空氣導入口向前述排 氣口單一方向流動的氣流,以排出前述被處理基板所產 生之蒸發物者。 2·如請求項1之裝置,其中 前述區隔構件可以裝卸於前述加熱裝置。 3·如請求項1之裝置,其中 前述區隔構件係包含選自多孔質陶瓷及耐腐蝕性金屬 所構成之群組之材料。 4.如請求項i之裝置,其中 前述區隔構件係具有直徑2 μιη至100 μηι範圍内之孔徑。 5.如請求項1之裝置,其中 為了經由前述區隔構件之前述複數孔將前述蒸發物排 放至前述第2空間,選自由前述區隔構件之孔徑及氣孔率 所構成之群組之條件的至少其一、以及前述氣流形成機Applying for a specialization of the surrounding area - a heating device for a coated film, characterized by a bag chamber having an internal space; a heating plate having a substrate to be processed having a finishing layer supported in the chamber a mounting surface for heating the substrate to be processed, and a partitioning member disposed in the cavity 1 so as to face the mounting surface, and the partitioning member divides the internal space into a second space having a plurality of holes communicating with the second and second spaces, wherein the mounting surface is disposed in the first space; and an air flow forming mechanism is disposed on a side surface of the second space An air introduction port is provided, and an exhaust port connected to the exhaust mechanism is provided on the other side surface portion of the opposite side, and an air flow flowing in a single direction from the air introduction port to the exhaust port is formed to discharge the processed substrate The resulting vaporizer. 2. The device of claim 1, wherein the partition member is detachable from the heating device. 3. The device of claim 1, wherein the partition member comprises a material selected from the group consisting of porous ceramics and corrosion-resistant metals. 4. The device of claim i, wherein the aforementioned partition member has a pore size ranging from 2 μm to 100 μm. 5. The apparatus of claim 1, wherein the evaporating substance is discharged to the second space through the plurality of holes of the partition member, and is selected from the group consisting of a pore size and a porosity of the partition member. At least one of the above, and the aforementioned airflow forming machine 裝 訂Binding 1300514 - C8 D8 六、申請專利範圍 構都可調整。 6. —種塗佈膜之加熱裝置,其特徵為包含 腔室,其具有内部空間; 加熱板,其係具有在前述腔室内支撐具有塗佈層之被 處理基板的載置面,且用以加熱前述被處理基板;及 吸附板,以和載置面相對之方式配置於前述腔室内部 、可用以吸附前述被處理基板所產生之蒸發物。 7. 如請求項6之裝置,其中 前述吸附板係具有由包含氧化物、氮化物、和前述被 處理基板對向之表面係包含氧化物之材料、以及和前述 被處理基板對向之表面係包含氮化物之材料之群組中選 出之材料。 8. 如請求項6之裝置,其中 前述吸附板具有可控制前述吸附板之溫度之溫度控制 機能。 9. 如請求項8之裝置,其中 前述溫度控制機能係將前述吸附板之溫度設定為高於 前述被處理基板之溫度。 10. 如請求項8之裝置,其中 前述_溫度控制機能係將前述吸附板之溫度設定為低於 前述被處理基板之溫度。 11. 如請求項8之裝置,其中 前述吸附板係具有由包含氧化物、氮化物、和前述被 處理基板對向之表面係包含氧化物之材料、以及和前述 -2- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1300514 、申請專利範園 板對向之表面係包含氮化物之材料之群組中選 12.如請求項6之裝置,其中 =吸附板係包含金屬構件,前述裝置更具有可用以 ^述加熱板及前述電極構件間產生電場之電壓產生 13·如請求項12之裝置,其中 W述電極構件係利用前述電壓產生器施加上低於前述 加熱板之電壓,吸附前述蒸發物。 14·如請求項12之裝置,其中 前述電極構件係利用前述電壓產生器施加上高於前述 加熱板之電壓,抑制前述蒸發物之產生。 15. —種光阻處理裝置,其特徵為包含 在被處理基板上形成化學放大型光阻膜之光阻形成機 構, 對前述化學放大型光阻膜照射能量線,形成具有潛影 圖案之曝光區域的曝光機構; 旋轉修正前述被處理基板之方向之旋轉修正機構; 沿著前述被處理基板朝一方向流動氣流同時加熱前述 化學放大型光阻膜之加熱處理機構;及 使前述化學放大型光阻膜顯影之顯影機構。 16. 種光阻之處理方法,其包含 在被處理基板上形成光阻膜之步驟; 在腔室内加熱形成有前述光阻膜之前述被處理基板之 -3 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 13005141300514 - C8 D8 VI. The scope of application for patents can be adjusted. 6. A heating device for coating a film, comprising: a chamber having an internal space; and a heating plate having a mounting surface for supporting a substrate to be processed having a coating layer in the chamber, and The substrate to be processed is heated; and the adsorption plate is disposed inside the chamber so as to face the mounting surface, and is configured to adsorb the vaporized material generated by the substrate to be processed. 7. The device of claim 6, wherein the adsorption plate has a surface layer comprising an oxide, a nitride, and an oxide layer on a surface opposite to the substrate to be processed, and a surface system opposite to the substrate to be processed. A material selected from the group consisting of nitride materials. 8. The device of claim 6, wherein the adsorption plate has a temperature control function capable of controlling the temperature of the adsorption plate. 9. The device of claim 8, wherein the temperature control function sets the temperature of the adsorption plate to be higher than a temperature of the substrate to be processed. 10. The device of claim 8, wherein the temperature control function sets the temperature of the adsorption plate to be lower than the temperature of the substrate to be processed. 11. The device of claim 8, wherein the adsorbing plate has a material comprising an oxide, a nitride, and an oxide containing a surface opposite to the substrate to be processed, and the above-mentioned -2- paper scale is applicable to China. National Standard (CNS) A4 Specification (210X297 mm) 1300514. The surface of the patented vane plate is selected from the group consisting of nitride materials. 12. The device of claim 6 wherein the adsorption plate contains metal. The device, the device further has a device for generating an electric field between the heating plate and the electrode member. 13. The device of claim 12, wherein the electrode member is applied lower than the heating plate by using the voltage generator. The voltage adsorbs the aforementioned evaporant. The apparatus according to claim 12, wherein said electrode member suppresses generation of said evaporant by applying a voltage higher than said heating plate by said voltage generator. A photoresist processing apparatus characterized by comprising a photoresist forming mechanism for forming a chemically amplified resist film on a substrate to be processed, and irradiating the chemical amplification resist film with an energy ray to form an exposure having a latent image pattern An exposure mechanism of the region; a rotation correction mechanism for rotating the direction of the substrate to be processed; a heat treatment mechanism for flowing the gas flow in one direction along the substrate to be heated while heating the chemical amplification type resist film; and the chemical amplification type photoresist Development mechanism for film development. 16. A method for treating photoresist, comprising the steps of forming a photoresist film on a substrate to be processed; heating the substrate to be processed having the photoresist film formed in the chamber - 3 the paper scale is applicable to the Chinese national standard (CNS) A4 size (210X 297 mm) 1300514 步驟; 以一區隔構件將前述腔室分割成第丨及第2空間,該區 f構件具有連通前述第丨及第2空間之複數孔,且在前述 第2空間内之一侧面部上設置空氣導入口,並於對向之 另一側面部上設置連接於排氣機構之排氣口,而形成從 則述空氣導入口向前述排氣口單一方向流動的氣流,而 將前述被處理基板載置於第】空間内,前述加熱期間,前 述被處理基板產生之蒸發物會經由前述區隔構件之前述 複數孔流至前述第2空間,並利用氣流從前述第2空間進 行排氣之步驟; 對前述光阻膜照射能量線,形成具有潛影圖案之曝光 區域的曝光步驟;及 經由將前述光阻膜置於顯影液内,選擇性地去除部份 前述光阻膜,在前述被處理基板上形成期望之圖案的顯 影步騾。 17·如請求項16之方法,其中 前述曝光步驟係在前述加熱步驟後實施。 18.如請求項17之方法,其中 前述顯影步驟係在前述曝光步驟後實施。 19_如請求項16之方法,其中 前述曝光步驟係在前述加熱步驟前實施。 20·如請求項19之方法’其中 前述顯影步驟係在前述加熱步驟後實施。 21·如請求項16之方法’其中 -4- 本紙張尺度適用中國國家樣準(CNS) A4規格(21〇 X 297公釐) 1300514a step of dividing the chamber into a second space and a second space by a partition member having a plurality of holes communicating with the second and second spaces, and being disposed on one side portion of the second space An air introduction port, and an exhaust port connected to the exhaust mechanism is provided on the other side surface portion of the opposite side to form an air flow flowing in a single direction from the air introduction port to the exhaust port, and the processed substrate is formed Loading in the first space, during the heating period, the evaporating material generated by the substrate to be processed flows through the plurality of holes of the partition member to the second space, and the air is exhausted from the second space by the air flow. And exposing an energy ray to the photoresist film to form an exposure region having a latent image pattern; and selectively removing a portion of the photoresist film by placing the photoresist film in a developer solution, being processed as described above A development step of forming a desired pattern on the substrate. 17. The method of claim 16, wherein the exposing step is performed after the heating step. 18. The method of claim 17, wherein the developing step is performed after the exposing step. The method of claim 16, wherein the exposing step is performed prior to the heating step. 20. The method of claim 19 wherein said developing step is carried out after said heating step. 21·If the method of claim 16' -4- The paper scale applies to China National Standard (CNS) A4 specification (21〇 X 297 mm) 1300514 ㈤述能量線係由選自由紫外線、遠紫外線、真空紫外 、、泉、€子線、及X線所構成之群組。 22. —種光阻處理方法,其特徵為包含 在被處理基板上形成光阻膜之步驟; 在腔室内對前述被處理基板進行加熱之步驟、前述腔 A具有和^述被處理基板對向地配置之吸附板; 前述加熱期間,利用前述吸附板吸附前述被處理基板 產生之蒸發物的步驟; 用以對㈤述光阻膜照射能量線、形成具有潛影圖案之 曝光區域的曝光步驟;及 使前述光阻膜顯影之顯影步驟。 23·如請求項22之方法,其中 前述曝光步驟係在前述加熱步驟後實施。 24·如請求項23之方法,其中 前述顯影步驟係在前述曝光步驟後實施。 25·如請求項22之方法,其中 前述曝光步騾係在前述加熱步驟前實施。 26. 如請求項25之方法,其中 前述顯影步驟係在前述加熱步驟後實施。 27. 如請求項22之方法,其中 前述吸附板係可控制溫度。 28. 如請求項27之方法,其中 前述吸附板係控制為比前述被處理基板較低溫。 29. 如請求項27之方法,其中 -5- 本紙張尺度適财 @ ®i^(CNS) A4規格(21G X 297蝴------ 1300514(5) The energy line is selected from the group consisting of ultraviolet rays, far ultraviolet rays, vacuum ultraviolet rays, springs, sub-lines, and X-rays. 22. A photoresist processing method comprising the steps of: forming a photoresist film on a substrate to be processed; heating the substrate to be processed in the chamber; the cavity A has a surface opposite to the substrate to be processed The adsorption plate disposed in the ground; the step of adsorbing the evaporate generated by the substrate to be processed by the adsorption plate during the heating; and the exposing step of irradiating the energy line to the photoresist film to form an exposure region having a latent image pattern; And a developing step of developing the aforementioned photoresist film. The method of claim 22, wherein the exposing step is performed after the heating step. The method of claim 23, wherein the developing step is performed after the exposing step. The method of claim 22, wherein the exposure step is performed prior to the heating step. 26. The method of claim 25, wherein the developing step is performed after the aforementioned heating step. 27. The method of claim 22, wherein the adsorption plate is temperature controllable. 28. The method of claim 27, wherein the adsorbing plate is controlled to be cooler than the substrate to be processed. 29. The method of claim 27, wherein -5- the paper size is suitable for @@i^(CNS) A4 specification (21G X 297 butterfly ------ 1300514 前^及附板《溫度係控制為㈣述被處理基板 溫。 30·如請求項22之方法,其中 前述光阻膜係化學放大型光阻。 31. 如請求項22之方法,其中 前述能量線係選自由紫外線、遠料線、真 、電子線、及X線所構成之群組。 、"、’ 32. 如請求項22之方法,其中 前述吸附板係包含金屬構件,前述加熱期間,前述吸 附板及前述加熱板間,由包含前述蒸發物吸附於前述吸 附板之方向、及抑制前述蒸發物產生之方向之群組中所 選擇之方向使產生電場。 33·如請求項32之方法,其中 前述曝光步驟係在前述加熱步驟後實施。 34·如請求項33之方法,其中 前述顯影步驟係在前述曝光步驟後實施。 35. 如請求項32之方法,其中 蓟述曝光步驟係在如述加熱步驟前實施^ 36. 如請求項35之方法,其中 前述顯影步驟係在前述加熱步驟後實施。 37·如請求項33之方法,其中 對前述吸附板施加低於前述加熱板之電位,將前述蒸 發物吸附於前述吸附板表面。 38.如請求項33之方法,其中 -6- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1300514 '申請專利範圍 對如述吸附板施加鬲於前述加熱板之電位,抑制前述 光阻膜產生前述蒸發物。 39·如請求項33之方法,其中 前述加熱步驟後,對前述吸附板施加正電位,使吸附 於如述吸附板表面之蒸發物質從前述吸附板脫離。 40·如請求項30之方法,其中 前述化學放大型光阻係感光性樹脂膜。 41·如請求項32之方法,其中 前述能量線係選自由紫外線、遠紫外線、真空紫外線 、電子線、及X線所構成之群組。 42· —種光阻圖案形成方法,其係依序實施 在被處理基板上形成化學放大型光阻膜之步驟. 、用以對前述化學放大型綠膜照射能量線以形成具有 潛影圖案之曝光區域的曝光步驟; 對前述化學放大型綠膜進行加熱之加熱步驟;及 對前述化學放大型光阻膜進行顯影之顯影步驟 特徵為 /、 對應前述加熱時從前述化學.放大型光阻蒸發之塞 的量、及前述蒸發物之再度附著的量之收支變化 《實質能量變化’在前述加熱前,修正照射 區域之能量。 ^ 43· —種光阻圖案形成方法,其係依序實施 在被處理基板上形成化學放大型光阻膜之步騾· 對前述化學放大型光阻膜照射選自包含紫料’、遠紫 國國家標準㈤^勘⑽297;~ 1300514 - B8 C8 D8 六、申請專利範圍 外線、真空紫外線、電子線及X光之群中之能量線以形 成具有潛影圖案之曝光區域的曝光步驟; 對前述化學放大型光阻膜在氣流存在下進行加熱之加 熱步驟;及 對前述化學放大型光阻膜進行顯影之顯影步驟者,其 特徵為 對應前述加熱時從前述化學放大型光阻蒸發之蒸發物 的量、及前述蒸發物之再度附著的量之收支變化所導致 之實質第1能量變化,在前述加熱前,修正照射至前述曝 光區域之能量。 .44.如請求項43之方法,其中 前述能量修正係利用前述曝光時之曝光量調整來實施。 45. 如請求項44之方法,其中 前述曝光量之調整係在前述曝光區域内實施。 46. 如請求項45之方法,其中 前述曝光量之調整係依據形成之光阻圖案的覆蓋率來 實施。 47. 如請求項45之方法,其中 前述曝光區域係以掃描型曝光裝置在被處理基板上實 施投影曝光用基板上之圖案的縮小投影來形成, 前述能量線之照射量條件的調整,則係由包含調整前 述掃描型曝光裝置之前述投影曝光用基板及前述被處理 基板的掃描速度、以及調整入射至前述掃描型曝光裝置 之前述投影用基板的入射能量之群組中所選取的方法來 -8 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 穴、申請專利範固 實施。 48·如請求項44之方法,其中 相對於前述氣流方向,將上游侧不存在曝光區域之最 上游曝光區域的曝光量,調整為比前述最上游曝光區域 以外之下游曝光區域實質上更高。 49.如請求项43之方法,其中 义W述能量修正係和前述曝光步驟分開實施,且利用對 則述曝光區域照射相當於前述第丨能量變化份之能量來 實施。 50·如請求項49之方法,其中 胃對#述曝光區域照射相當於前述第冰量變化份之能 夏的步驟’係選自由可使前述化學放大型光阻感光之波 長的燈、雷射、及電子線所構成之之群組之_實施照射 51·如請求項43之方法,其中 前述能量修正,係以相對於前述氣流而從上游侧至下 游側依序計算之修正量為基礎實行。 52.如請求項43之方法,其中 I述曝光及前述加制,更進—步包含旋轉修正前述 被處理基板之步驟。 53_如請求項43之方法,其中 可述氣流係沿著前述被處理基板之一方向。 M•一種光阻圖案形成方法,其係依序實施 在被處理基板上形成化學放大型光阻膜之步驟; G張尺度適用 -9 - 1300514 - C8 D8 六、申請專利範圍 對前述化學放大型光阻膜照射能量線並形成具有潛影 圖案之曝光區域的曝光步驟; 對前述化學放大型光阻膜進行加熱之加熱步騾;及 對前述化學放大型光阻膜進行顯影之顯影步驟者,其 特徵為 對應前述加熱時從前述化學放大型光阻蒸發之蒸發物 的量、及前述蒸發物之再度附著的量之收支變化所導致 之實質能量變化,在前述加熱時,實施供應給前述曝光 區域之能量的修正。 55. —種光阻圖案形成方法,其係依序實施 在被處理基板上形成化學放大型光阻膜之步驟; 對前述化學放大型光阻膜照射選自由包含紫外線、遠 紫外線、真空紫外線、電子線、及X線所構成之群組之能 量線以形成具有潛影圖案之曝光區域的曝光步驟; 在氣流存在之情形下,對前述化學放大型光阻膜進行 加熱之加熱步驟;及 對前述化學放大型光阻膜進行顯影之顯影步騾者,其 特徵為 對應前述加熱時從前述化學放大型光阻蒸發之蒸發物 的量、及前述蒸發物之再度附著的量之收支變化所導致 之實質第1能量變化,在前述加熱時,實施供應給曝光 區域之能量的修正。 56. 如請求項55之方法,其中 前述能量修正係利用加熱之熱量來實施。 -10- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 - C8 D8 六、申請專利範圍 57. 如請求項55之方法,其中 前述加熱時,以相對於前述氣流方向,使上游側不存 在曝光區域之最上游曝光區域的實質能量高於前述最上 游曝光區域以外之下游曝光區域方式修正供應給曝光區 域之能量。 58. 如請求項55之方法,其中 前述氣流係沿著前述被處理基板之一方向。 59. 如請求項55之方法,其中 前述能量修正,係以相對於前述氣流而從上游側至下 游側依序計算之修正量為基礎實施。 60. 如請求項55之方法,其中 前述曝光及前述加熱間,更進一步具有旋轉修正前述 被處理基板的步驟。 61. —種光阻圖案形成方法,其係依序實施 在被處理基板上形成化學放大型光阻膜之步驟; 對前述化學放大型光阻膜照射能量線以形成具有潛影 圖案之曝光區域的曝光步驟.; 在氣流存在之情形下,對前述化學放大型光阻膜進行 加熱之加熱步驟;及 以藥液供應噴嘴對前述化學放大型光阻膜供應顯影液 ,用以形成期望之光阻圖案的顯影步驟者,其特徵為 對應包含前述加熱時從前述化學放大型光阻蒸發之蒸 發物的量、及前述蒸發物之再度附著的量之收支變化所 導致之實質能量分布、以及前述分布產生之光阻圖案尺 -11 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)The front and the attached plate "temperature system control is (4) the substrate temperature to be treated. The method of claim 22, wherein the photoresist film is a chemically amplified photoresist. 31. The method of claim 22, wherein the energy line is selected from the group consisting of ultraviolet light, far-line, true, electronic, and X-rays. The method of claim 22, wherein the adsorption plate comprises a metal member, and wherein the adsorption plate and the heating plate are in a direction in which the evaporation material is adsorbed in the adsorption plate, and The direction selected in the group that suppresses the direction in which the evaporant is generated causes an electric field to be generated. 33. The method of claim 32, wherein the exposing step is performed after the step of heating. The method of claim 33, wherein the developing step is performed after the exposing step. 35. The method of claim 32, wherein the exposing step is performed prior to the heating step. 36. The method of claim 35, wherein the developing step is performed after the heating step. The method according to claim 33, wherein a potential lower than the temperature of the heating plate is applied to the adsorption plate, and the evaporated product is adsorbed on the surface of the adsorption plate. 38. The method of claim 33, wherein the -6- paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210×297 mm) 1300514 'the patent application scope is applied to the adsorption plate to apply the potential of the heating plate to suppress the potential The aforementioned photoresist film produces the aforementioned vaporizer. The method according to claim 33, wherein after the heating step, a positive potential is applied to the adsorption plate to cause the evaporation substance adsorbed on the surface of the adsorption plate to be detached from the adsorption plate. The method of claim 30, wherein the chemically amplified resist is a photosensitive resin film. 41. The method of claim 32, wherein the energy line is selected from the group consisting of ultraviolet light, far ultraviolet light, vacuum ultraviolet light, electron lines, and X-rays. 42. A photoresist pattern forming method for sequentially forming a chemically amplified resist film on a substrate to be processed, for irradiating an energy line of the chemically amplified green film to form a latent image pattern An exposure step of the exposed region; a heating step of heating the chemically amplified green film; and a developing step for developing the chemically amplified resist film is characterized by /, corresponding to the aforementioned chemical amplification of the resistive evaporation The amount of plug and the change in the amount of re-attachment of the evaporant "the substantial energy change" corrects the energy of the irradiated area before the heating. ^ 43· A method for forming a photoresist pattern, which is a step of sequentially forming a chemically amplified resist film on a substrate to be processed, and irradiating the chemically amplified resist film with a material selected from the group consisting of purple material, and far purple National Standard (5) ^ survey (10) 297; ~ 1300514 - B8 C8 D8 6. The exposure step of applying the energy line in the outer line of the patent, the vacuum ultraviolet light, the electron line and the X-ray group to form the exposed area with the latent image pattern; a heating step of heating the chemical amplification type resist film in the presence of a gas stream; and a developing step of developing the chemical amplification type resist film, which is characterized by evaporating the evaporation from the chemically amplified photoresist in response to the heating The amount of the first energy change caused by the change in the amount of re-adhesion of the evaporant is corrected, and the energy applied to the exposure region is corrected before the heating. The method of claim 43, wherein the energy correction is performed using exposure amount adjustment at the time of exposure. 45. The method of claim 44, wherein the adjusting of the amount of exposure is performed in the aforementioned exposure area. 46. The method of claim 45, wherein the adjusting of the amount of exposure is performed in accordance with a coverage of the formed photoresist pattern. 47. The method of claim 45, wherein the exposure area is formed by performing a reduction projection of a pattern on the substrate for projection exposure on the substrate to be processed by the scanning exposure apparatus, and adjusting the irradiation condition of the energy line is a method selected from the group consisting of adjusting a scanning speed of the projection exposure substrate and the substrate to be processed, and adjusting an incident energy of the projection substrate incident on the scanning exposure device. 8 - The paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 points, and the patent application is implemented. The method of claim 44, wherein the exposure amount of the most upstream exposure region where the exposure region is not present on the upstream side is adjusted to be substantially higher than the downstream exposure region other than the most upstream exposure region with respect to the airflow direction. 49. The method of claim 43, wherein the energy correction system and the exposure step are performed separately, and the exposure region is irradiated with energy corresponding to the second energy change portion. 50. The method according to claim 49, wherein the step of irradiating the exposing region to the expansive portion of the amount of the ice amount is selected from the group consisting of a lamp, a laser having a wavelength capable of sensitizing the chemically amplified photoresist. And the method of claim 43, wherein the energy correction is performed based on a correction amount sequentially calculated from the upstream side to the downstream side with respect to the airflow. . 52. The method of claim 43, wherein the exposing and the adding are further comprising the step of rotationally modifying the substrate to be processed. 53. The method of claim 43, wherein the gas flow is in a direction along one of the substrates being processed. M• A photoresist pattern forming method for sequentially forming a chemically amplified resist film on a substrate to be processed; G-scale is applicable to -9 - 1300514 - C8 D8 VI. Patent application scope for the aforementioned chemical amplification type a step of exposing the energy line to form an exposure region having a latent image pattern; a heating step of heating the chemical amplification type resist film; and a developing step of developing the chemical amplification type resist film, It is characterized in that the substantial energy change caused by the change in the amount of the evaporating substance evaporated from the chemically amplified resist and the amount of re-adhesion of the evaporating material during the heating is applied to the aforementioned heating. Correction of the energy of the exposed area. 55. A photoresist pattern forming method for sequentially forming a chemically amplified resist film on a substrate to be processed; and irradiating the chemically amplified resist film with ultraviolet light, far ultraviolet light, vacuum ultraviolet light, An electron beam, and an energy line of the group of X lines to form an exposure region having a latent image pattern; a heating step of heating the chemical amplification type resist film in the presence of a gas stream; The developing step of developing the chemically amplified resist film is characterized by a change in the amount of the evaporating substance evaporated from the chemically amplified resist during the heating and the amount of re-adhesion of the evaporating substance. The substantial first change in energy is caused, and during the heating described above, the correction of the energy supplied to the exposed region is performed. 56. The method of claim 55, wherein the energy correction is performed using heat of heating. -10- This paper scale applies to China National Standard (CNS) A4 specification (210 X 297 mm) 1300514 - C8 D8 VI. Patent application scope 57. The method of claim 55, wherein the heating is performed in relation to the aforementioned airflow The direction is such that the energy of the most upstream exposure region where the exposure region does not exist on the upstream side is higher than the downstream exposure region other than the most upstream exposure region, and the energy supplied to the exposure region is corrected. 58. The method of claim 55, wherein the airflow is in a direction along one of the substrates being processed. 59. The method of claim 55, wherein the energy correction is performed based on a correction amount sequentially calculated from the upstream side to the downstream side with respect to the airflow. The method of claim 55, wherein the exposing and the heating are further provided with the step of rotationally correcting the substrate to be processed. 61. A photoresist pattern forming method for sequentially forming a chemically amplified resist film on a substrate to be processed; irradiating the chemical amplification resist film with an energy line to form an exposed region having a latent image pattern Exposure step: a heating step of heating the chemical amplification type resist film in the presence of a gas stream; and supplying a developer to the chemical amplification type resist film by a chemical supply nozzle to form a desired light The developing step of the resist pattern is characterized in that the substantial energy distribution caused by the change in the amount of the evaporating substance evaporated from the chemically amplified resist during the heating and the amount of re-attachment of the evaporating substance is included, and The photoresist pattern -11 produced by the above distribution - This paper scale applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 裝· 玎装· 玎 1300514 A8 B8 C8 D8 申請專利範圍 寸變動之群組中選取之值,在前述顯影時,在前述被處 理基板内調整光阻圖案之顯影速度。 62·如請求項61之方法,其中 前述顯影速度之調整,為了彌補上游側不存在曝光區 域之最上游曝光區域的前述蒸發物損失,係相對於前述 加熱時之氣流方向,利用在前述最上游曝光區域、及前 述最上游曝光區域以外之下游曝光區域改變前述藥液供 應噴嘴吐出之顯影液吐出條件來實施。 63.如請求項62之方法,其中 前述化學放大型光阻為正型時,前述顯影速度之調整 係’菱更的述取上游曝光區域及前述下游曝光區域之吐出 條件,使促進前述最上游曝光區域之顯影、或抑制前述 下游曝光區域之顯影。 64·如請求項62之方法,其中 前述化學放大型光阻為負型時,前述顯影速度之調整 係變更前述最上游曝光區域及前述下游曝光區域之吐出 條件,使抑制前述最上游曝光區域之顯影、或促進前述 下游曝光區域之顯影。 65·如請求項62之方法,其中 前述顯影速度調整係具有 在前述最上游曝光區域時及在前述下游曝光區域時求 取前述顯影液之吐出條件及前述圖案尺寸之關係的步驟; 決定最上游曝光區域及下游曝光區域之顯影液吐出條 件,使最上游曝光區域之圖案尺寸和下游曝光區域之圖 -12- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 - C8 D8 六、申請專利範圍 案尺寸相同之步驟;及 依前述決定之吐出條件吐出前述顯影液之步驟。 66. 如請求項63之方法,其中 前述顯影液之供應方法係具有在直線狀藥液供應噴嘴 吐出顯影液之狀態下前述噴嘴從前述被處理基板上之一 端掃描至另一端來形成液膜之方法, 前述吐出條件係依據前述噴嘴之掃描速度、前述顯影 液之吐出量、包含前述噴嘴之之群組中選取的值、以及 和前述被處理基板之距離。 67. 如請求項63之方法,其中 前述氣流方向係由包含前述被處理基板之中心向外緣 方向、及外緣向中心方向之群組中選取的方向, 前述顯影液之供應方法係具有將直線狀藥液供應喷嘴 配置於前述被處理基板之中心,並由噴嘴持續吐出顯影 液且旋轉被處理基板來形成液膜之步驟, 前述顯影速度之調整係利用噴嘴之吐出量分布來控制。 68. 如請求項61之方法,其中 前述顯影速度之調整,為了彌補上游側不存在曝光區 域之最上游曝光區域的前述蒸發物損失,係相對於前述 加熱時之氣流方向,以調整最上游之曝光區域的顯影液 溫度、及前述最上游曝光區域以外之下游曝光區域的顯 影液溫度來實施。 69. 如請求項68之方法,其中 前述化學放大型光阻為正型時,前述顯影速度之調整 -13- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 1300514 - Jt>o C8 D8 7T、申請專利祀圍 係變更前述最上游曝光區域及前述下游曝光區域之顯影 液溫度,使促進前述最上游曝光區域之顯影、或抑制前 述下游曝光區域之顯影。 70. 如請求項68之方法,其中 前述化學放大型光阻為負型時,前述顯影速度之調整 係變更前述最上游曝光區域及前述下游曝光區域之顯影 液溫度,使抑制前述最上游曝光區域之顯影、或促進前 述下游曝光區域之顯影。 71. 如請求項68之方法,其中 前述顯影速度調整係具有 在前述最上游曝光區域時及在前述下游曝光區域時求 取顯影液溫度及圖案尺寸之關係的步驟; 決定最上游曝光區域及下游曝光區域之顯影液溫度, 以使最上游曝光區域之圖案尺寸和下游曝光區域之圖案 尺寸相同之步驟;及 調整至前述決定之顯影液溫度的步驟。 72. 如請求項68之方法,其中 前述顯影液溫度之調整係使用包含熱板及燈加熱器之 群組中選取之熱源,且從前述被處理基板下面實施。 73. 如請求項68之方法,其中 前述顯影液溫度之調整係使用燈加熱器從前述被處理 基板上面實施。 74. 如請求項61之方法,其中 前述顯影速度之調整,係相對於前述氣流方向以調整 -14- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1300514 A8 B8 C8 ΤΛΟ1300514 A8 B8 C8 D8 Patent application range The value selected in the group of change in amplitude, during the development described above, the development speed of the resist pattern is adjusted in the substrate to be processed. The method of claim 61, wherein the adjustment of the development speed is performed to compensate for the evaporation loss of the most upstream exposure region of the exposure region on the upstream side, and is used in the upstream direction with respect to the airflow direction during the heating. The exposure region and the downstream exposure region other than the most upstream exposure region are changed by changing the developer discharge condition discharged from the chemical liquid supply nozzle. The method of claim 62, wherein when the chemical amplification type resist is positive, the adjustment of the development speed is a discharge condition of the upstream exposure region and the downstream exposure region, which facilitates the promotion of the most upstream Development of the exposed area or suppression of development of the aforementioned downstream exposed area. The method of claim 62, wherein the chemical amplification type resist is negative, the adjustment of the development speed is performed by changing a discharge condition of the most upstream exposure region and the downstream exposure region, so as to suppress the most upstream exposure region. Developing, or promoting development of the aforementioned downstream exposed areas. The method of claim 62, wherein the developing speed adjustment has a step of determining a relationship between the discharge condition of the developer and the pattern size in the most upstream exposure region and in the downstream exposure region; The developing solution discharge condition of the exposed area and the downstream exposed area is such that the pattern size of the most upstream exposed area and the downstream exposed area are shown in Figure -12 - The paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 - C8 D8 6. The procedure for the same size of the patent application scope; and the step of discharging the developer according to the discharge condition determined above. The method of claim 63, wherein the method of supplying the developer is to form a liquid film by scanning the nozzle from one end to the other end of the substrate to be processed in a state where the developer is discharged by the linear drug supply nozzle. According to the method, the discharge condition is based on a scanning speed of the nozzle, a discharge amount of the developer, a value selected from a group including the nozzle, and a distance from the substrate to be processed. 67. The method of claim 63, wherein the airflow direction is a direction selected from a group consisting of a center of the substrate to be processed and a direction of the outer edge toward the center, and the method for supplying the developer has The linear chemical solution supply nozzle is disposed at the center of the substrate to be processed, and the nozzle continuously discharges the developer and rotates the substrate to be processed to form a liquid film. The adjustment of the development speed is controlled by the discharge amount distribution of the nozzle. 68. The method of claim 61, wherein the adjusting of the developing speed is to compensate for the evaporation loss of the most upstream exposed region of the exposed region on the upstream side, and to adjust the upstream direction with respect to the direction of the airflow during the heating. The developer temperature in the exposure region and the developer temperature in the downstream exposure region other than the most upstream exposure region are implemented. 69. The method of claim 68, wherein the aforementioned chemical amplification type resist is positive, the aforementioned development speed adjustment - 13 - the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) 1300514 - Jt> o C8 D8 7T, the patent application system changes the developer temperature of the most upstream exposure region and the downstream exposure region to promote development of the most upstream exposure region or to suppress development of the downstream exposure region. 70. The method of claim 68, wherein the chemical amplification type resist is negative, the adjustment of the development speed is to change the developer temperature of the most upstream exposure region and the downstream exposure region, so as to suppress the most upstream exposure region. Developing, or promoting the development of the aforementioned downstream exposure region. The method of claim 68, wherein the developing speed adjustment has a step of determining a relationship between a developer temperature and a pattern size in the most upstream exposure region and in the downstream exposure region; determining the most upstream exposure region and downstream a developing solution temperature in the exposed region, a step of making the pattern size of the most upstream exposed region and a pattern size of the downstream exposed region the same; and a step of adjusting the temperature of the developing solution determined as described above. The method of claim 68, wherein the adjusting of the temperature of the developer is performed using a heat source selected from the group consisting of a hot plate and a lamp heater, and is performed from under the substrate to be processed. 73. The method of claim 68, wherein the adjusting of the developer temperature is performed from above the substrate to be processed using a lamp heater. 74. The method of claim 61, wherein the adjustment of the aforementioned development speed is adjusted relative to the direction of the airflow of the above-mentioned airflow direction. The Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1300514 A8 B8 C8 is applied. ΤΛΟ 六、申請專利範圍 上游側未存在曝光區域之最上游曝光區域的顯影液濃度 、及則述最上游曝光區域以外之下游曝光區域的顯,、 濃度來實施。 ^ 75·如請求項74之方法,其中 前述化學放大型光阻為正型時,前述顯影速度之調敕 係變更前述最上游曝光區域及前述下游曝光區域之顯= 液濃度,使促進前述最上游曝光區域之顯影、或抑制= 述下游曝光區域之顯影。 W 76.如請求項74之方法,其中6. Patent application range The developer concentration of the most upstream exposure region where the exposure region is not present on the upstream side, and the concentration and concentration of the downstream exposure region other than the most upstream exposure region are implemented. In the method of claim 74, wherein the chemical amplification type resist is positive, the adjustment of the development speed changes the display liquid concentration of the most upstream exposure region and the downstream exposure region to promote the most Development, or suppression of the upstream exposure area = development of the downstream exposure area. W 76. The method of claim 74, wherein 狀淚度,使抑制前述最上游曝光區域之顯影、或促進’ 述下游曝光區域之顯影。 77. 如請求項74之方法,其中 前述顯影速度調整係具有 在前述最上游曝光區域時及在前述下游曝光區域 取顯影液濃度及圖案尺寸之關係的步驟; 決定最上游曝光區域及下游曝光區域之顯影液濃产, 使最上游曝光區域之圖案尺寸和下游曝光區域之又 寸相同之步驟;及 碉整至前述決定之顯影液濃度的步驟。 78. 如請求項74之方法,其中 述被處理基板上面 前述顯影液濃度之調整係藉由從前 將氣流吹附至顯影液面實施。 本紙張尺度適用中國國家標準((31^8) Α4規格(210 X 297公釐) 1300514 έ88 C8 D8 六、申請專利範圍 79. 如請求項74之方法,其中 前述顯影液濃度之調整係含有 使前述被處理基板上之顯影液膜薄膜化的步騾、以及 將氣流吹附顯影液面之步驟。 80. 如請求項61之方法,其中 前述氣流方向為由包含前述被處理基板之中心向外緣 方向、及外緣向中心方向之群組中選取的方向時,前述 顯影速度之調整在前述顯影步驟供應顯影液前,具有對 光阻表面供應液體之步騾;及 相對於前述氣流方向,調整最上游曝光區域表面狀態 、及前述最上游曝光區域以外之下游曝光區域表面狀態 的步驟。 81. 如請求項80之方法,其中 前述液體係純水。 82. 如請求項80之方法,其中 前述液體係氧化性液體。 83. 如請求項82之方法,其中 前述氧化性液體係選自由臭氧、氧、一氧化碳、及過 氧化氫所構成之群組之水溶液。 84. 如請求項82之方法,其中 前述氧化性液體係5 ppm以下之臭氧水。 -16- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)The tear is such that the development of the most upstream exposed region is inhibited or the development of the downstream exposed region is promoted. 77. The method of claim 74, wherein the developing speed adjustment has a step of determining a relationship between a developer concentration and a pattern size in the most upstream exposure region and in the downstream exposure region; determining an most upstream exposure region and a downstream exposure region The developer is concentrated to produce a step in which the pattern size of the most upstream exposed region and the downstream exposed region are the same; and the step of adjusting the developer concentration to the above. 78. The method of claim 74, wherein the adjusting of the developer concentration on the substrate to be processed is performed by previously blowing a gas stream to the developer level. This paper scale applies to the Chinese national standard ((31^8) Α4 specification (210 X 297 mm) 1300514 έ88 C8 D8 VI. Patent application scope 79. The method of claim 74, wherein the adjustment of the developer concentration is included The step of thinning the developing liquid film on the substrate to be processed, and the step of blowing the air current onto the developing liquid surface. The method of claim 61, wherein the air flow direction is outward from a center including the substrate to be processed In the direction of the edge and the direction selected from the group of the outer edges in the center direction, the adjustment of the development speed has a step of supplying a liquid to the surface of the photoresist before the developing step supplies the developing solution; and with respect to the direction of the air flow, The step of adjusting the surface state of the most upstream exposure region and the surface state of the downstream exposure region other than the most upstream exposure region. 81. The method of claim 80, wherein the liquid system is pure water. 82. The method of claim 80, wherein The liquid system oxidizing liquid. The method of claim 82, wherein the oxidizing liquid system is selected from the group consisting of ozone, oxygen, and carbon monoxide. And an aqueous solution of the group consisting of hydrogen peroxide. 84. The method of claim 82, wherein the oxidizing liquid system has an ozone water of 5 ppm or less. -16- The paper size is applicable to the Chinese National Standard (CNS) A4 specification. (210 X 297 mm)
TW90132340A 2000-12-26 2001-12-26 TWI300514B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000394354 2000-12-26
JP2001011299 2001-01-19

Publications (1)

Publication Number Publication Date
TWI300514B true TWI300514B (en) 2008-09-01

Family

ID=45069988

Family Applications (1)

Application Number Title Priority Date Filing Date
TW90132340A TWI300514B (en) 2000-12-26 2001-12-26

Country Status (1)

Country Link
TW (1) TWI300514B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI503907B (en) * 2010-04-14 2015-10-11 Wonik Ips Co Ltd Substrate processing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI503907B (en) * 2010-04-14 2015-10-11 Wonik Ips Co Ltd Substrate processing apparatus

Similar Documents

Publication Publication Date Title
JP3696156B2 (en) Coating film heating apparatus and resist film processing method
TWI413160B (en) Semiconductor lithography process
CN100573320C (en) Pattern forming method
JP2004134674A (en) Substrate treatment method, heating treatment apparatus, and pattern forming method
JP2000508118A (en) Semiconductor wafer processing method for controlling drive current
US7238454B2 (en) Method and apparatus for producing a photomask blank, and apparatus for removing an unnecessary portion of a film
TW200938963A (en) Lithography apparatus, method of forming pattern and method of manufacturing semiconductor device
JP5275275B2 (en) Substrate processing method, EUV mask manufacturing method, EUV mask, and semiconductor device manufacturing method
TW200837837A (en) Heat treatment apparatus with thermal uniformity
TWI300514B (en)
JP2005123651A (en) Resist film processing apparatus and method of forming resist pattern
JP2006245255A (en) Exposure device, exposure method, and method for manufacturing device having fine pattern
JP2007096347A (en) Rotation compensating device of processed substrate, processing device of resist film, method for compensating rotation of processed substrate, method for processing resist film
TW201926416A (en) Method of controlling reticle masking blade positioning
CN100541330C (en) The heating arrangement of coated film
JP3676947B2 (en) Semiconductor device manufacturing equipment, semiconductor device pattern forming method using the same, and semiconductor device manufacturing photoresist using the same
US20080311529A1 (en) Immersion multiple-exposure method and immersion exposure system for separately performing multiple exposure of micropatterns and non-micropatterns
TWI810829B (en) Method of manufacturing semiconductor devices using a photomask
TWI822893B (en) Method of generating layout pattern
JP4202962B2 (en) Substrate processing method and semiconductor device manufacturing method
KR100406583B1 (en) Exposure apparatus for preventing lens attack by evaporation of photoresist material
JP2004327688A (en) Resist development method and apparatus thereof
WO2021001092A1 (en) Surface treatment apparatus and method for surface treatment of patterning devices and other substrates
JPH03254112A (en) Method and device for eliminating thin film
JPH07142342A (en) Method and apparatus for forming pattern

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees