TWI376730B - - Google Patents
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- TWI376730B TWI376730B TW094110103A TW94110103A TWI376730B TW I376730 B TWI376730 B TW I376730B TW 094110103 A TW094110103 A TW 094110103A TW 94110103 A TW94110103 A TW 94110103A TW I376730 B TWI376730 B TW I376730B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68785—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by the mechanical construction of the susceptor, stage or support
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/458—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for supporting substrates in the reaction chamber
- C23C16/4582—Rigid and flat substrates, e.g. plates or discs
- C23C16/4587—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially vertically
- C23C16/4588—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially vertically the substrate being rotated
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/12—Substrate holders or susceptors
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B31/00—Diffusion or doping processes for single crystals or homogeneous polycrystalline material with defined structure; Apparatus therefor
- C30B31/06—Diffusion or doping processes for single crystals or homogeneous polycrystalline material with defined structure; Apparatus therefor by contacting with diffusion material in the gaseous state
- C30B31/14—Substrate holders or susceptors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67103—Apparatus for thermal treatment mainly by conduction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68757—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a coating or a hardness or a material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68771—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by supporting more than one semiconductor substrate
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- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
1376730 九、發明說明 . 【發明所屬之技術領域】 本發明係,有關於將碳化矽、氮化鎵、氮化錫化合物 半導體,加以磊晶成長時所使用之承受體:特別係有關於 在複數的基板上可以各自得到均勻的磊晶成長膜(以下簡 稱嘉晶膜)之承受體(susceptor)。 φ 【先前技術】 先前,半導體製造工程在晶圓上,係實施有使用化學 氣相成長法(CVD法),將原料氣體氣相反應,讓磊晶 層成長的單結晶製造方法。具體而言,CVD法係在承受 體上放置單結晶晶圓,將承受體與晶圓加熱並保持到磊晶 成長的溫度爲止。然後,將載體氣體及原料氣體的混合氣 體導入反應爐內,在高溫化下分解的原料氣體在晶圓上堆 積而形成磊晶層。對於能高速形成厚的磊晶層的反應爐, φ 係經常使用使氣體上下流出的縱向之氣相成長裝置。(例 如、參考以下載專利文獻1、2 )。 專利文獻1:日本特開平11-176757號公報 專利文獻2 :日本公開平5-87 1 28號公報 【發明內容】 發明所欲解決之課題 然而’先前之技術中,承受體之複數基板和與此等基 板對向的壁面間’距離有極大的差異,因此各基板間容易 -5- 1376730 產生溫 ,使磊 質的磊 因 ,可同 用以解 本 由在外 :和其 型承受 構成。 依 成長工 得到均 本 係由在 體;和 述桶型 ,所構 依 成長的 時複數 本 度差。因此,基板間的磊晶膜成長的速度會有差異 晶膜的厚度變的不同,而難以同時複數獲得同一品 晶膜。 此,本發明的目的係提供一種用於半導體磊晶成長 時並複數得到均一性較高之磊晶膜的承受體。 決課題之手段 發明係被用在半導體磊晶成長的承受體;其特徵係 側具有複數可自由裝置複數基板之面的桶型承受體 內部配置有上述桶型承受體,並具有分別對上述桶 體的上述面各自以同方向傾斜配置之面的構件,所 照上述的構成,將本發明之承受體用於半導體磊晶 程時,係可使各基板的溫度保持一定,而同時複數 一性較高的磊晶膜。 發明,係被用在半導體磊晶成長的承受體;其特徵 內側具有複數可自由裝置複數基板之面的桶型承受 其外周部配置有上述桶型承受體,並具有分別對上 承受體的上述面各自以同方向傾斜配置之面的構件 成。 照上述的構成,將本發明之承受體用於半導體磊晶 工程時,係可使各基板的溫度保持一定,而可以同 得到均一性較高的磊晶膜。 發明之承受體中,上述構件其上述承受體側的面, -6- 1376730 係以可自由裝置複數基板者爲佳。 • 依照上述的構成’可同時得到更多均一性較高的磊晶 膜。 本發明之承受體中’上述桶型承受體或/以及上述部 . 材,係以加熱器者爲佳。 依照上述的構成’因直接使各基板之溫度成爲一定地 來加熱,故可同時複數獲得均一性更高之晶晶膜。 φ 本發明的承受體’係以含有石墨之基材所構成爲佳。 又’本發明的承受體’係由多結晶的碳化矽及多結晶的碳 化鉬所覆蓋者爲佳。 進行使用高頻線圈之加熱方法的半導體磊晶成長時, 因承受體可以本身當成熱源,故可直接使各.基板加熱到— 定溫度。以此結果來說’可更確實的同時複數得到高均一 性的磊晶膜。又’以多結晶碳化矽或多結晶碳化鉅來覆蓋 ’可防止石墨所製造的承受體中雜質的釋放。特別以多結 φ 晶碳化鉬覆蓋時’碳化钽係對於高溫較有優越性的材料, 針對氫也有較好的耐蝕性,故可以防止覆蓋材的昇華或是 石墨之露出,也可以防止雜質的釋放。 【實施方式】 以下參考圖面’說明有關本發明的實施方式。 第1圖,係分別表示本發明第1實施方式之承受體之 構成物品的立體圖;(a)係桶型之內承受體,(b)係外 側構件。 1376730 第1圖所示的承受體1,係由以石墨爲基材的內承受 體2,及以石墨爲基材的外側部材3所構成。此等之的表 面’係以多結晶碳化矽或多結晶碳化钽所覆蓋者爲佳》 內承受體2’係將4塊具有2個凹狀之座孔部4的梯 形平面(四塊梯形平面全爲相同面積),對垂直以特定角 度傾斜’將傾斜邊群相互結合構成,也就是成爲桶型承受 體。 外側構件3,係與內承受體2略爲類似的形狀,而爲 可將承受體2裝設配置在其內部者。又,將承受體2裝置 在其內部時’各自對於內承受體2之具有座孔部4的梯形 平面’係具有可平行或約略平行配置的梯形平面4片(四 塊梯形平面全爲相同面積)者。亦即,外側構件3的梯形 平面’係各自相對於垂直的被傾斜特定角度者。 另外,內承受體2的梯形平面的傾斜角度,係以相對 於垂直方向的2〜45"爲佳;,外側構件3的梯形平面的傾 斜角度’係以相對於垂直方向的2〜45°爲佳。在此,以略 平行來對向配置時’係以氣體入口側的流路較廣,出口側 的流路較狹窄者爲佳。這是因爲,例如若內承受體2的梯 形平面的傾斜角度是相對於垂直的角度1 2 °,則外側構件 3的梯形平面的傾斜角度爲相對於垂直的角度8°即可達成 。以這樣的構成方式,可以適度抑制氣體的加熱。且內承 受體2與外側構件3間的平面間的距離係5〜60 mm、理 想上爲10〜25 mm。 又座孔部4設置一個以上即可。更且,內承受體2及
-8- S 1376730 外側構件3的梯形平面的片數並不限定爲4片,各自爲3 片以上即可。 接下來,說明使用第一實施方式之承受體的磊晶成長 裝置。第2圖係表示第1圖的磊晶成長裝匱的反應室附近 的槪略圖。 第2圖所示的磊晶成長裝置的反應室5的內部,係設 置有被配置於反應室5中心部之第1實施方式的承受體1 ’及被配置於承受體1的外周部之隔熱材6。反應室5的 外周部,係設置有螺旋狀的高頻線圏7。 承受體1,係將第1圖(b )的外側部材的方向加以 上下反轉,以此覆蓋第1圖(a)之內承受體的配置構成 。另外,使內承受體2的梯形平面與外側構··件3的梯形平 面,成平行或略平行地加以調整配置。 隔熱材6係爲了防止承受體1的放熱,而設置在反應 室5的內壁與承受體1的外周部之間》 高頻線圈7,係將高頻波以石墨所構成的承受體1, 而可使承受體1發熱者。 接下來參考第2圖,說明使用了第1實施方式的承受 體之磊晶成長。 首先,在承受體1的內承受體2中,裝置用以磊晶成 長的基板8。接下來,於第2圖的位置裝置內承受體2, 使高頻線圈7運轉,將承受體加熱到磊晶成長的最適當的 溫度。然後使反應氣體,通過承受體1中內承受體2與外 側構件3之間》(參考第2圖的箭號. -9- 1376730 若依上述構成,因對半導體磊晶成長工程使用第1實 施方式的承受體,故可使各基板溫度—定,也同時可複數 铪到均一性咼的磊晶膜。又,以多結晶碳化砂或多結晶碳 化飽覆盖,可防止由石墨所構成的承受體中雜質的釋放。 特別係以多結晶碳化钽來覆蓋時’碳化钽係高溫特性較好 的材料’且對於氫也具備優良耐蝕性,故可以防止覆蓋材 的昇華或是石墨的暴露,而可防止雜質的釋放。 另外’作爲本實施方式的變形例,亦可將內承受體2 或/及外側構件3作爲加熱器。 又,作爲承受體5內的配置之變形例,亦可如第3圖 所示,將第2圖的承受體1與隔熱材6加以上下翻轉的構 成亦可。此時,反應氣體之流動方向係從下往上的流向。 (參考第3圖的箭頭) ‘接下來,說明本發明之第2實施方式的承受體。 第4圖’係個別表示本發明第2實施方式的承受體之 各個構成物品的立體圖,(a )係內側構件,(b )係桶型 之外承受體。 第2圖所標示之承受體9,係由以石墨作爲基材的內 側構件1 〇 ’與以石墨作爲基材的外承受體1 1所構成。此 等的表面,係以多結晶碳化矽或係多結晶碳化钽所覆蓋爲 佳。 外承受體11’係將具有座孔部12的梯形平面四片( 4片梯形平面全部面積相同)各自以相對於垂直的特定角 度傾斜,而將斜邊彼此相互結合所構成。 -10 -
S 1376730 內側部材1 0,係與外承受體1 1爲略相似的形狀,而 爲可配置在外承受體11的內部者。內側部材ίο裝置在內 部時,係分別對於外承受體11其具有座孔部12的梯形平 面’具有可各自以平行或略平的相對配置的梯形平面4片 (4片梯形平面全部面積相同)者。亦即內側構件1〇之 梯形平面,係分別對垂直以特定方向傾斜者。
另外,內側構件1 0的梯形平面其傾斜角度,係以相 對於垂直的2〜45°爲佳;而外側構件11的梯形平面其傾 斜角度,係以相對於垂直的2〜45°爲佳。在此,以略平行 的對向配置時,係以氣體入口側的流路較廣,而出口側的 流路較狹窄者爲佳。這是因爲,例如將內承受體2的梯形 平面的傾斜角度,作爲相對於垂直的角度1 2。,則外側構 件3的梯形平面的傾斜角度,可由相對於垂直的角度8。達 成。以這樣的構成,可以適度抑制氣體的加熱。且內承受 體2與外側構件3間的平面間的距離係5〜60 mm,而以 10〜25 mm爲佳》 又’座孔部12係設置個以上即可。更且,內承受體 2及外側構件3的梯形平面的片數並不限定爲4片,各自 爲3片以上即可。 本實施方式的承受體9,係可取代第2圖之磊晶成長 裝置的反應室5內之承受體1而適用。依此,可得到與第 1實施方式同樣的效果。又以本實施方式的變形例來說, 內側構件1 0或/及外承受體1 1也可作爲加熱器。 以第1實施方式及第2實施方式的變形例來說,亦可 -11 - 1376730 爲將第1圖的內承受體2與第2圖的外承受體11,作爲 已適用的承受體13之構成。此承受體13,係可以取代第 2圖中磊晶成長裝置的反應室5內的承受體1而適用。 又,以與重力相反方向裝置基板時,亦可使用針等使 其不會掉落而固定。 實施範例
取代第1圖的四面的桶型承受體1,以使用六面的桶 型承受體(不圖示)之桶型氣相反應裝置,表示其磊晶層 之形成的一個實施例。在此,說明以化合物半導體之一亦 即碳化矽的磊晶層形成。
在六面桶型承受體的內面設置各座孔中,分別放置直 徑2吋的單結晶碳化矽晶圓,而將承受體放置在特定的場 所。反應室內在以H2氣體轉換過後,進行真空吸引到達 5xl(T6 Torr。真空吸引後,將載體氣體亦即H2氣體從原 料氣體供給口(不圖示),而將惰性氣體亦即Ar氣體從 非活氣體供給口(不圖示)加以導入,將承受體內保持在 100 Torr 〇H2氣體與Ar氣體從排氣口(不圖示)連續排 出,藉由被設置在在排氣口的下游之壓力閥,來控制反應 室內壓力。 對螺旋狀的高頻感應線圏7投入電力將承受體加熱, 升溫達到1 3 50 °C爲止。此時爐內溫度,係藉由放射溫度 計來測定晶圓面上的溫度。溫度從1 3 5 0 °C以上開始,則 從供給口導入少量的原料氣體,抑制碳化矽晶圓的由H2
-12- S 1376730 蝕刻所造成的傷害。在此情況下,使用SiH4與C3H8作爲 - 原料氣體。將承受體作爲加熱源或設置隔熱材的情況下, 不只加熱效率好而節省消耗電力,亦可由急速升溫來抑制 升溫中晶圓由氫蝕刻所造成的傷害。結果,可以得到高品 質的磊晶層。 更且,作爲磊晶層成長溫度,將承受體與晶圓加熱至 高溫的1 83 5 °C後,則使爐內保持一定溫度。以承受體當 φ 作加熱源直接將晶圓加熱,或設置隔熱材,係可大幅增加 加熱效率,故在急速升溫,高溫下之磊晶成長係爲可能。 此時,將SiH4的流量增加爲120 seem,C3H8的流量增加 爲30 seem,供給摻雜氣體亦即N2氣體〇.〇5 seem,而開 始磊晶層之形成。碳化矽磊晶層之形成條件,係成長溫度 爲 1835 °C,成長壓力爲 100 Torr,C/Si 比爲 0.75,SiH4 /H2 比爲 0.4 mol%、C3H8/H2 比爲 0·1 mol%,成長時 間爲4小時。
此時的成長速度是33//m/h,而4小時的成長可形 成厚度約爲130//m的磊晶層。厚的碳化矽磊晶層的表面 型態爲鏡面,而可形成無表面大缺損、高品質的磊晶層。 又,第6圖表示碳化矽磊晶層中,對於(a)氣體流的平 行方向與(b)直交方向其膜厚度及表面粗糙度的分佈。 若排除邊緣部,係可得σ/m爲2〜4%的良好均一性。 這係因將承受體作爲加熱源使用或設置隔熱材,而使晶圓 溫度均一性的改善的效果。另外,第6圖中所謂RMS係 平均方根粗糙度,以下係相同。 -13- 1376730 依1835 °C的成長條件,調查Si H4流量與成長速度的 關係,係如第7圖,成長速度依SiH4流量的比例增加, 而得到44/zm/h的高速成長。這是因將承受體作爲加熱 源,故可將晶圓附近用以反應的原料氣體,有效加熱分解 所帶來的效果。即使在供給多量的SiH4的44/zm/h之情 況下,亦可得0.3 nm之平坦表面型態。此處RMS,係在 於10x10" m2的範圍。
又,調查碳化矽磊晶層的摻雜密度分佈後,係如第8 圖,對於氣體的流向,可進行平行方向與直交方向同爲5 xl 0l4cnT3的高純度領域之摻雜控制。因爲承受體與晶圓 的有效加熱或隔熱材的設置,使加熱效率大幅上升,而減 低加熱的負擔並抑制承受體內璧的劣化的效果。又,針對 摻雜密度的分佈可得2〜5%的良好均一性。這是因爲以 承受體作爲加熱源直接對晶圓加熱,或隔熱材的設置,而 使晶圓面內溫度的均一性提升的效果。
另外,本發明係在不超脫專利申請範圍的範圍內可設 計變更者,而非限制在上述實施型態與實施例內者。 【圖式簡單說明】 [第1圖]係分別表示本發明的第1實施方式之承受體 其構成物品的立體圖。(a)係桶型內承受體,(b)係外 側構件。 [第2圖]係表示使用第1圖之承受體的磊晶成長裝置 其反應室附近的槪略圖。
-14- 1376730 [第3圖]係表示第2圖的變形例的圖。 • [第4圖]係分別表示.本發明的第2實施方式之承受體 的構成物品。(a )係內側構件,(b )係桶型的外承受體 〇 . [第5圖]係第1圖的第1實施型態的承受體與第4圖 的第2實施方式的承受體之變形例的圖。 [第6圖]係表示本發明中的磊晶層的膜厚與表面粗糙 φ 度的分佈關係線圖。(a)係對氣體流向之平行方向,(b )係對氣體流向的垂直方向,表示其磊晶層的膜厚成長速 度與表面粗糙度分佈之關係關係的線圖。 [第7圖]本發明的實施範例中,表示磊晶層的膜厚成 長速度與表面的粗糙度,其與SiH4的流量相關性的線圖 〇 [第8圖]係表示本發明的實施範例其磊晶層的摻雜密 度分佈的線圖,(a )係對氣體流向之平行方向,(b )係 Φ 對氣體流向之垂直方向,表示其磊晶層的摻雜密度分佈之 線圖。 【主要元件符號說明】 1、9、13 承受體 2 內承受體 3 外側構件 4 座孔部 5 反應室 -15- 1376730 6 隔熱材 7 局頻線圏 8 基板 10 內側構件 11 外承受體 12 座孔部
Claims (1)
1376730 年~月9日修(更)正本 十、申請專利範圍 • Κ —種承受體(suscePtor),係被用在半導體磊晶成 長;其特徵係· 由在外側具有複數可自由載置複數基板之載置面的桶 型承受體;和 其內部配置有上述桶型承受體,並具有分別對上述桶 型承受體的上述載置面各自以平面間距離5〜60mm的間隔 φ 做對向配置之對向面的構件,所構成。 2. —種承受體(susceptor),係被用在半導體磊晶成 長;其特徵係: 由在內側具有複數可自由載置複數基板之載置面的桶 型承受體; 和其外周部配置有上述桶型承受體,並具有分別對上 述桶型承受體的上述載置面各自以平面間距離5〜60mm的 間隔做對向配置之對向面的構件,所構成。 Φ 3.如申請專利範圍第1項或第2項所記載之承受體 ,其中: 上述構件之上述筒型承受體側的對向面,係可自由載 置複數基板者。 • 4 ·如申請專利範圍第1項或第2項所記載之承受體 . ,其中: 上述桶型承受體及上述部材中之至少其中一方’係加 熱器者。 5 ·如申請專利範圍第1項或第2項所記載之承受體 -17- 1376730 ,其中: 係由含有石墨之基材所構成者。 6.如申請專利範圍第5項所記載之承受體,其中: 係由多結晶碳化矽或多結晶碳化钽所覆蓋者。
-18- 1376730 y / 附件 第094110103號專利申請案 民國101年9月19日修正 . 中文圖式修正頁 W年1月W日修(更)正替換頁
第1圖
756780 1376730 ,’ …丨年1月丨1曰衝更)i替換頁
第4圖 1376730 明 圖說 )單 1簡 C號 符 第U ..表 為代 圖件 表元 代之 定圖 指表 :案代 圖本本 表' ' 定一二 指 Γχ /IV > 七 1 :承受體 2 :內承受體 3 :外側構件 4 :座孔 八、本案若有化學式時,請揭示最能顯示發明特徵的化學 式:
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JP4551106B2 (ja) * | 2004-03-31 | 2010-09-22 | 東洋炭素株式会社 | サセプタ |
US20080314319A1 (en) * | 2007-06-19 | 2008-12-25 | Memc Electronic Materials, Inc. | Susceptor for improving throughput and reducing wafer damage |
US8404049B2 (en) * | 2007-12-27 | 2013-03-26 | Memc Electronic Materials, Inc. | Epitaxial barrel susceptor having improved thickness uniformity |
CN102315148A (zh) * | 2010-06-30 | 2012-01-11 | 上方能源技术(杭州)有限公司 | 用于镀膜的基板传输装置和基板传输方法 |
CN102560434B (zh) * | 2010-12-13 | 2014-10-22 | 北京北方微电子基地设备工艺研究中心有限责任公司 | 金属有机化合物化学气相沉积设备 |
JP2013055201A (ja) * | 2011-09-02 | 2013-03-21 | Tokyo Electron Ltd | 熱処理装置 |
JP5880297B2 (ja) * | 2012-06-07 | 2016-03-08 | 三菱電機株式会社 | 基板支持体、半導体製造装置 |
KR101431606B1 (ko) * | 2014-02-24 | 2014-08-22 | (주)앤피에스 | 기판 처리 장치 |
CN106337204B (zh) * | 2015-07-17 | 2018-11-06 | 中国科学院苏州纳米技术与纳米仿生研究所 | 石墨托以及装有石墨托的晶体生长炉 |
JP7247749B2 (ja) * | 2019-05-27 | 2023-03-29 | 住友金属鉱山株式会社 | 炭化ケイ素多結晶膜の成膜方法、サセプタ、及び、成膜装置 |
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2004
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2005
- 2005-03-28 WO PCT/JP2005/005675 patent/WO2005096356A1/ja not_active Application Discontinuation
- 2005-03-28 CN CNB2005800103596A patent/CN100468631C/zh not_active Expired - Fee Related
- 2005-03-28 CA CA002558591A patent/CA2558591A1/en not_active Abandoned
- 2005-03-28 US US10/594,562 patent/US20070186858A1/en not_active Abandoned
- 2005-03-28 KR KR1020067019984A patent/KR101030422B1/ko not_active IP Right Cessation
- 2005-03-28 EP EP05721602A patent/EP1732111A4/en not_active Withdrawn
- 2005-03-30 TW TW094110103A patent/TW200537602A/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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US20070186858A1 (en) | 2007-08-16 |
JP2005294508A (ja) | 2005-10-20 |
CA2558591A1 (en) | 2005-10-13 |
WO2005096356A1 (ja) | 2005-10-13 |
EP1732111A4 (en) | 2009-11-04 |
TW200537602A (en) | 2005-11-16 |
JP4551106B2 (ja) | 2010-09-22 |
KR20060131921A (ko) | 2006-12-20 |
CN1938822A (zh) | 2007-03-28 |
KR101030422B1 (ko) | 2011-04-20 |
CN100468631C (zh) | 2009-03-11 |
EP1732111A1 (en) | 2006-12-13 |
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