TWI817614B - Continuous plasma processing system with positioning electrode - Google Patents
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Abstract
Description
本發明係關於一種電漿製程相關技術,尤指一種具定位電極的連續電漿製程系統。The present invention relates to a technology related to plasma processing, and in particular, to a continuous plasma processing system with positioning electrodes.
電漿製程為半導體製程中廣泛應用的技術之一,一般電漿處理設備有採單腔體的枚葉式排列或是多腔體串聯的連續式(In-line)電漿處理設備,其中,連續式(In-line) 電漿處理設備需透過載盤承載待加工物以在不同腔體內傳輸,然而,待加工物於傳輸過程及進行電漿製程的過程中,容易發生待加工物跑位的情況。Plasma processing is one of the widely used technologies in semiconductor manufacturing. Generally, plasma processing equipment adopts a single-cavity blade arrangement or a multi-cavity series-connected continuous (In-line) plasma processing equipment. Among them, Continuous (In-line) plasma processing equipment needs to carry the objects to be processed through carrier trays for transportation in different cavities. However, during the transportation process and the plasma process, the objects to be processed are prone to displacement. situation.
所述待加工物跑位的情況,將會導致待加工物於連續製程中發生定位不準確的問題,而定位不準確可能會影響電漿製程例如清潔、蝕刻或鍍膜的準確度;除此之外,隨著連續式製程的進行,越到後面製程,跑位的狀況將越發嚴重,而對製程良率造成嚴重影響。The movement of the object to be processed will lead to inaccurate positioning of the object to be processed in the continuous process, and inaccurate positioning may affect the accuracy of plasma processes such as cleaning, etching or coating; in addition, In addition, as the continuous process progresses, the positioning situation will become more serious in the later processes, which will have a serious impact on the process yield.
本發明主要目的在於,解決電極與待加工物之間跑位的問題,而避免待加工物定位不精準。The main purpose of the present invention is to solve the problem of positioning between the electrode and the object to be processed, and to avoid inaccurate positioning of the object to be processed.
為達上述目的,本發明提供一種具定位電極的連續電漿製程系統,其包括:一框形載盤、一載入腔體、一加工腔體以及一載出腔體,框形載盤用以承載一待加工物;載入腔體用以輸入待加工物;加工腔體連通載入腔體,加工腔體接收待加工物並對待加工物進行電漿處理,加工腔體具有一第一電極、一第二電極以及一位移裝置,第一電極與第二電極相對設置於加工腔體內的兩端並形成一加工空間,位移裝置連接第二電極,第二電極的表面凸設有一防滑件,防滑件環繞於第二電極的表面以形成一降溫區,框形載盤移動到加工空間後,位移裝置可控制第二電極位於一斷電位置或一導電位置,當第二電極位於導電位置時,待加工物透過接觸防滑件而定位於第二電極之降溫區上;載出腔體連通加工腔體,載出腔體接收並輸出已加工的待加工物。In order to achieve the above object, the present invention provides a continuous plasma process system with positioning electrodes, which includes: a frame-shaped carrier plate, a loading cavity, a processing cavity and a load-out cavity. The frame-shaped carrier plate is used for To carry an object to be processed; the loading cavity is used to input the object to be processed; the processing cavity is connected to the loading cavity, the processing cavity receives the object to be processed and performs plasma treatment on the object to be processed, and the processing cavity has a first An electrode, a second electrode and a displacement device. The first electrode and the second electrode are arranged oppositely at both ends of the processing chamber and form a processing space. The displacement device is connected to the second electrode, and an anti-slip member is protruding from the surface of the second electrode. , the anti-slip member surrounds the surface of the second electrode to form a cooling area. After the frame-shaped carrier plate moves to the processing space, the displacement device can control the second electrode to be in a power-off position or a conductive position. When the second electrode is in the conductive position At this time, the object to be processed is positioned on the cooling area of the second electrode by contacting the anti-slip part; the load-out cavity is connected to the processing chamber, and the load-out cavity receives and outputs the processed object to be processed.
藉此,本發明具定位電極的連續電漿製程系統,能夠透過凸設於第二電極表面之防滑件增加第二電極表面的摩擦力,在位移裝置控制第二電極移動到導電位置時,透過防滑件與待加工物的接觸而將待加工物定位於降溫區,以避免待加工物位移而跑位的情況,而確保待加工物在後續電漿製程或是乘載於框形載盤時的定位精準度,進而避免製程良率不佳的問題。更進一步的,透過該防滑件的設置定義出降溫區,而可有效的對待加工物進行降溫處理,避免電漿製程所產生的高溫對待加工物造成過熱問題。Thereby, the continuous plasma process system with positioning electrodes of the present invention can increase the friction force on the surface of the second electrode through the anti-slip piece protruding from the surface of the second electrode. When the displacement device controls the movement of the second electrode to the conductive position, through The contact between the anti-slip parts and the object to be processed positions the object to be processed in the cooling zone to prevent the object to be processed from being displaced and to ensure that the object to be processed is in the subsequent plasma process or is loaded on the frame carrier. The positioning accuracy is high, thereby avoiding the problem of poor process yield. Furthermore, by defining a cooling zone through the arrangement of the anti-slip parts, the object to be processed can be effectively cooled and the object to be processed can be avoided from overheating caused by the high temperature generated by the plasma process.
為便於說明本發明於上述發明內容一欄中所表示的中心思想,茲以具體實施例表達。實施例中各種不同物件係按適於說明之比例、尺寸、變形量或位移量而描繪,而非按實際元件的比例予以繪製,合先敘明。In order to facilitate the explanation of the central idea of the present invention expressed in the above summary column, specific embodiments are hereby expressed. Various objects in the embodiments are drawn according to proportions, sizes, deformations or displacements suitable for illustration, rather than according to the proportions of actual components, and are explained first.
請參閱圖1至圖9b所示,本發明提供一種具定位電極的連續電漿製程系統100,其包括一框形載盤10、一載入腔體20、一加工腔體30、一載出腔體40以及一傳輸裝置50;於本實施例中,載入腔體20、加工腔體30以及載出腔體40呈依序設置,載入腔體20、加工腔體30以及載出腔體40相互連通,傳輸裝置50連續設於載入腔體20、加工腔體30以及載出腔體40內。Referring to FIGS. 1 to 9B , the present invention provides a continuous
框形載盤10用以承載一待加工物1,載入腔體20用以輸入待加工物1,加工腔體30能夠接收待加工物1並對待加工物1進行電漿處理,載出腔體40能夠接收並輸出已加工的待加工物1,框形載盤10能夠置於傳輸裝置50上,而藉由傳輸裝置50之拖送於載入腔體20、加工腔體30以及載出腔體40內進行一水平方向的位移。The frame-
加工腔體30具有一第一電極31、一第二電極32以及一位移裝置33,如圖2所示,第一電極31與第二電極32相對設置於加工腔體30內的兩端並形成一加工空間S,位移裝置33連接第二電極32,其中,第一電極31與第二電極32係以一垂直方向相對設於加工腔體30內。The
於本實施例中,第一電極31以及第二電極32分別耦接一射頻電源,而能夠分別提供第一電極31以及第二電極32射頻能量而產生電漿,以對待加工物1進行電漿處理。當然的,第一電極31與第二電極32亦可以其中之一耦接電源,另一電極則接地,同樣可以加工腔體30內形成電場,進行電漿製程處理。In this embodiment, the
於本實施例中,當框形載盤10移動到加工空間S後,位移裝置33可控制第二電極32位於一斷電位置P1或一導電位置P2,如圖2、圖3所示,當第二電極32遠離第一電極31並不與待加工物1接觸時,第二電極32位於斷電位置P1;如圖2、圖4所示,當第二電極32往第一電極31方向移動並穿過框形載盤10,且抵頂待加工物1脫離框形載盤10時,第二電極32位於導電位置P2。需說明的是,於本申請中,係以垂直方向設置的第一電極31、第二電極32作為舉例說明,第二電極32係以垂直方向移動穿過框形載盤10而抵頂待加工物1。In this embodiment, when the
於本實施例中,當第二電極32位於斷電位置P1時,射頻電源不會被啟動以提供第一電極31與第二電極32射頻能量;當第二電極32位於導電位置P2時,射頻電源啟動以使第一電極31與第二電極32之間生成電漿,而能夠對待加工物1進行電漿處理。In this embodiment, when the
第二電極32的表面凸設有一防滑件321環繞於第二電極32的表面以形成一降溫區Z,如圖4所示,當第二電極32移動到導電位置P2時,待加工物1透過接觸防滑件321而定位於第二電極32之降溫區Z上;於本實施例中,防滑件321為矽膠或橡膠材質。An
進一步說明,藉由防滑件321能夠增加第二電極32表面的摩擦力,而避免待加工物1與第二電極32接觸的過程發生待加工物1位移而錯位的情況,並避免後續位移裝置33控制第二電極32位於斷電位置P1,而使框形載盤10承接已加工的待加工物1時定位不準確的問題。To further explain, the
於本實施例中,降溫區Z提供輸入一降溫氣體以對待加工物1進行降溫,第二電極32開設有一進氣孔322,進氣孔322連通降溫區Z,當第二電極32位於導電位置P2時,進氣孔322提供輸入降溫氣體至降溫區Z而對待加工物1進行降溫;於本實施例中,降溫氣體為氦氣。In this embodiment, the cooling zone Z provides an input of cooling gas to cool the
此外,於本實施例中,防滑件321凸出第二電極32的表面之垂直高度介於0.5毫米至2毫米,所述垂直高度範圍能夠確保防滑件321的定位效果,且能夠令輸入之降溫氣體足以分佈於降溫區Z,而不會有降溫區Z過大而影響降溫效果的問題。In addition, in this embodiment, the vertical height of the
本發明第一實施例之防滑件321如圖5至圖6所示,於本實施例中,防滑件321呈封閉環狀,第二電極32開設有與進氣孔322位置相異的一出氣孔323,出氣孔323連通降溫區Z,當第二電極32位於導電位置P2時,降溫氣體由進氣孔322輸入並由出氣孔323排出,而確保降溫氣體流動的穩定性。於本案圖5、圖6所揭示的進氣孔322與出氣孔323位置僅為示例,實際上會依據設計需求而調整位置達到氣體流動而對待加工物1進行降溫的目的。The
本發明第二實施例之防滑件321如圖7至圖8所示,於本實施例中,防滑件321為間隔設置的複數防滑段3211,各防滑段3211之間形成一排氣通道3212,各排氣通道3212連通降溫區Z,當第二電極32位於導電位置P2時,降溫氣體由進氣孔322輸入並由各排氣通道3212排出,藉此達到氣體流動而對待加工物1進行降溫的目的。The
第二電極32的表面凸設有複數彈性導電件324,彈性導電件324位於降溫區Z內,彈性導電件324具有一接觸面,如圖4所示,當第二電極32位於導電位置P2時,待加工物1透過接觸防滑件321而定位於第二電極32之降溫區Z上,彈性導電件324同時以接觸面接觸待加工物1之底部並承載待加工物1。A plurality of elastic
當彈性導電件324抵頂待加工物1時,接觸面能夠隨著所承受的壓力而改變與待加工物1的接觸面積;於本實施例中,彈性導電件324呈拱形;於本實施例中,彈性導電件324為鈹銅。When the elastic
於本實施例中,所述彈性導電件324所佔的面積涵蓋第二電極32的表面面積的10%至50%。需特別說明的是,彈性導電件324所佔據的面積不能太大,其係由於彈性導電件324需藉由下壓的力道,彈性導電件324之接觸面才能夠隨著所承受的壓力而改變與待加工物1的接觸面積,進而達到面接觸的效果,若彈性導電件324佔據面積過大,彈性導電件324分攤後所承受之壓力並不足以改變接觸面A的面積,因此無法達到與待加工物1面接觸之效;另一方面,若彈性導電件324所佔據的面積太小,則無法達到提升待加工物1表面製程均勻度的目的。另一方面,搭配前述防滑件321凸出第二電極32的表面之垂直高度介於0.5毫米至2毫米之設計,可同時讓待加工物1的重量加壓於防滑件321以及彈性導電件324而進一步壓縮第二電極32與待加工物1的距離,並同時具有高導電、高定位性且貼近第二電極32表面的優點。In this embodiment, the area occupied by the elastic
彈性導電件324能夠以面接觸的方式來與待加工物1進行接觸,而增加第二電極32與待加工物1的之間的接觸均勻度以及電導通能力,進而使電漿作用更均勻且更集中於待加工物1上。The elastic
位移裝置33具有一驅動件331以及連動驅動件331之一移動件332,移動件332受驅動件331之作動而位移並帶動第二電極32位移,驅動件331能夠驅使移動件332往第一電極31方向移動,並使第二電極32穿過框形載盤10到達導電位置P2;於本實施例中,驅動件331可為氣壓缸或液壓缸等。The
進一步說明,請配合參閱圖3及圖4所示,於本實施例中,加工腔體30更具有一平台37,位移裝置33更具有一連接板334,其中,平台37為固定不動,而驅動件331經由提高連接板334的方式帶動位移裝置33垂直往上移動,使第二電極32穿過框形載盤10而抵頂待加工物1。For further explanation, please refer to Figures 3 and 4. In this embodiment, the
於本實施例中,位移裝置33更具有一彈性接地件333,彈性接地件333設於移動件332連接第二電極32之一側,且對應框形載盤10之位置,如圖4所示,當第二電極32位於導電位置P2時,彈性接地件333能夠同時接觸框形載盤10之底部;於本實施例中,彈性接地件333可為鈹銅。In this embodiment, the
於本實施例中,當第二電極32位於導電位置P2時,待加工物1與框形載盤10之間具有一間隔距離;於本實施例中,間隔距離為1毫米至3毫米。In this embodiment, when the
其中,移動件332實際上提供彈性接地件333一接地路徑,當彈性接地件333接觸框形載盤10時,能夠使框形載盤10連結至所述接地路徑而為接地的狀態,框形載盤10為接地狀態能夠有效限制電漿的範圍而避免電漿發散的問題,以及避免框形載盤10阻抗過高的問題。除此之外,於待加工物1進行電漿處理時,由於待加工物1實際上與框形載盤10具有間隔距離的設置,能夠避免電漿產生的粒子形成於框形載盤10與待加工物1之間,而造成框形載盤10與待加工物1電性導通的狀況。Among them, the moving
加工腔體30具有一水平調整模組34、一距離調整模組35以及一夾持裝置36,其中,水平調整模組34設於驅動件331以及移動件332之間,距離調整模組35設於移動件332遠離第二電極32之一端兩側,夾持裝置36固設於加工空間S內。The
水平調整模組34用以調整第二電極32的水平度,而確保製程機台的水平精度;於本實施例中,移動件332一端經由水平調整模組34連接至連接板334,另一端穿過平台37而面接觸第二電極32,連接板334受驅動件331之作動而位移並帶動移動件332與第二電極32位移。The
如圖9a至圖9b所示,水平調整模組34能夠透過調整其長度,而改變連接板334以及移動件332之間的垂直距離,進而校正第二電極32的水平度;於本實施例中,水平調整模組34為螺絲以及螺帽。As shown in FIGS. 9a to 9b , the
除了上述藉由水平調整模組34調整連接板334以及移動件332之間的垂直距離的方式之外,在其他可能的實施例中(未圖示),驅動件331抵接水平調整模組34,移動件332一端連接水平調整模組34,另一端面接觸第二電極32,水平調整模組34能夠透過調整其長度,而改變驅動件331與移動件332之間的垂直距離,進而校正第二電極32的水平度。In addition to the above-mentioned method of adjusting the vertical distance between the connecting
距離調整模組35用以配合不同尺寸型號的框形載盤10或不同尺寸的待加工物1,而限制第二電極32往第一電極31位移的一移動距離;於本實施例中,平台37設有一限位部371,距離調整模組35設於連接板334上且對應限位部371之位置,如圖4所示,當位移裝置33帶動第二電極32往第一電極31位移時,限位部371能夠透過抵接距離調整模組35,以限制位移裝置33往第一電極31方向移動的移動距離,而距離調整模組35能夠透過調整其長度以調整所述移動距離的大小;於本實施例中,距離調整模組35為螺絲以及螺帽。The
夾持裝置36用以固定待加工物1之外緣,而避免待加工物1於電漿處理過程受熱而翹起,如圖4所示,當位移裝置33控制第二電極32帶動待加工物1往第一電極31方向移動而脫離框形載盤10,而使第二電極32位於導電位置P2時,第二電極32與夾持裝置36分別由待加工物1垂直之兩側夾持並固定待加工物1。藉此,避免待加工物1因受熱彎曲翹起而影響電漿處理效果。The clamping
於本實施例中,在完成電漿製程後,位移裝置33控制第二電極32往遠離第一電極31方向移動,而使已加工的待加工物1承載於框形載盤10,並使第二電極32位於斷電位置P1,而藉由傳輸裝置50往載出腔體40移動。In this embodiment, after the plasma process is completed, the
綜合上述,本發明能夠達成以下功效:Based on the above, the present invention can achieve the following effects:
一、透過凸設於第二電極32表面之防滑件321增加第二電極32表面摩擦力,在第二電極32移動到導電位置P2時,透過防滑件321與待加工物1的接觸而將待加工物1定位於降溫區Z,以避免待加工物1跑位的情況,而確保後續電漿製程的定位精準度,進而避免製程良率不佳的問題。1. The surface friction of the
二、藉由開設於第二電極32的進氣孔322、出氣孔323或防滑段3211之間的排氣通道3212,在第二電極32移動到導電位置P2時,能夠由進氣孔322輸入降溫氣體,以對待加工物1進行降溫,並由出氣孔323排出降溫氣體而確保降溫氣體流動的穩定性。2. Through the
三、藉由凸設於第二電極32的複數彈性導電件324,能夠隨承受的壓力而改變接觸面A與待加工物1的接觸面積,而增加第二電極32與待加工物1之間的接觸均勻度以及導電效率,而使電漿作用更均勻且更集中於待加工物1上。3. Through the plurality of elastic
四、藉由位移裝置33控制第二電極32將待加工物1頂起,使框形載盤10與待加工物1之間具有間隔,並同時與彈性接地件333接觸而形成接地路徑,而使框形載盤10為接地狀態而進一步集中電漿團於待加工物1的位置,而避免電漿團聚於框形載盤10的位置,降低框形載盤10被電漿產生的粒子沾附的可能,進而避免製程效率降低、機台損壞以及製程良率不佳的問題。4. The
五、利用框形載盤10、第二電極32、位移裝置33的設置,使框形載盤10單純的用以承載待加工物1,而沒有複雜的電極組件,因而框形載盤10的成本較低,損壞或被電漿產生的粒子污染後的替換成本也可大幅降低。5. By utilizing the arrangement of the frame-shaped
六、藉由水平調整模組34改變連接板334以及移動件332之間的垂直距離,而校正第二電極32的水平度,以確保製程機台的整體精度。6. Use the
七、藉由距離調整模組35限制第二電極32往第一電極31位移的距離,而因應不同尺寸型號的框形載盤10或不同尺寸的待加工物1。7. The
八、透過夾持裝置36配合第二電極32固定待加工物1,能夠將待加工物1夾持並固定,而避免待加工物1因受熱彎曲翹起而影響電漿處理效果。8. By using the
以上所舉實施例僅用以說明本發明而已,非用以限制本發明之範圍。舉凡不違本發明精神所從事的種種修改或變化,俱屬本發明意欲保護之範疇。The above embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. All modifications or changes that do not violate the spirit of the present invention fall within the scope of the invention.
1:待加工物 100:具定位電極的連續電漿製程系統 10:框形載盤 20:載入腔體 30:加工腔體 31:第一電極 32:第二電極 321:防滑件 3211:防滑段 3212:排氣通道 322:進氣孔 323:出氣孔 324:彈性導電件 33:位移裝置 331:驅動件 332:移動件 333:彈性接地件 334:連接板 34:水平調整模組 35:距離調整模組 36:夾持裝置 37:平台 371:限位部 40:載出腔體 50:傳輸裝置 S:加工空間 Z:降溫區 P1:斷電位置 P2:導電位置1: Materials to be processed 100: Continuous plasma process system with positioning electrodes 10: Frame-shaped carrier plate 20: Loading the cavity 30: Processing cavity 31: First electrode 32: Second electrode 321: Anti-slip parts 3211: Anti-slip section 3212:Exhaust channel 322:Air intake hole 323: vent 324: Elastic conductive parts 33: Displacement device 331:Driving parts 332:Moving parts 333: Elastic grounding piece 334:Connection board 34: Horizontal adjustment module 35: Distance adjustment module 36: Clamping device 37:Platform 371: Limiting part 40: Load out the cavity 50:Transmission device S: processing space Z: cooling zone P1: power off position P2: conductive position
圖1係本發明實施例之電漿製程系統外觀示意圖。 圖2係本發明第一實施例之加工腔體剖面示意圖。 圖3係圖2之局部放大示意圖(一),用以表示第二電極位於斷電位置。 圖4係圖2之局部放大示意圖(二),用以表示第二電極位於導電位置。 圖5係本發明第一實施例之防滑件俯視圖。 圖6係本發明第一實施例之降溫氣體流動示意圖。 圖7係本發明第二實施例之防滑件俯視圖。 圖8係本發明第二實施例之降溫氣體流動示意圖。 圖9a至圖9b係本發明圖2之局部放大示意圖(三),用以表示水平調整模組調整第二電極的水平度。 Figure 1 is a schematic diagram of the appearance of a plasma processing system according to an embodiment of the present invention. Figure 2 is a schematic cross-sectional view of the processing chamber according to the first embodiment of the present invention. Figure 3 is a partially enlarged schematic diagram (1) of Figure 2, showing that the second electrode is in a power-off position. FIG. 4 is a partially enlarged schematic diagram (2) of FIG. 2 to show that the second electrode is located at a conductive position. Figure 5 is a top view of the anti-slip component of the first embodiment of the present invention. Figure 6 is a schematic diagram of cooling gas flow according to the first embodiment of the present invention. Figure 7 is a top view of the anti-slip component of the second embodiment of the present invention. Figure 8 is a schematic diagram of cooling gas flow according to the second embodiment of the present invention. Figures 9a to 9b are a partially enlarged schematic view (3) of Figure 2 of the present invention, showing that the level adjustment module adjusts the level of the second electrode.
1:待加工物 1: Materials to be processed
10:框形載盤 10: Frame-shaped carrier plate
30:加工腔體 30: Processing cavity
31:第一電極 31: First electrode
32:第二電極 32: Second electrode
321:防滑件 321: Anti-slip parts
322:進氣孔 322:Air intake hole
323:出氣孔 323: vent
324:彈性導電件 324: Elastic conductive parts
33:位移裝置 33: Displacement device
331:驅動件 331:Driving parts
332:移動件 332:Moving parts
333:彈性接地件 333: Elastic grounding piece
334:連接板 334:Connection board
34:水平調整模組 34: Horizontal adjustment module
35:距離調整模組 35: Distance adjustment module
36:夾持裝置 36: Clamping device
37:平台 37:Platform
371:限位部 371: Limiting part
50:傳輸裝置 50:Transmission device
S:加工空間 S: processing space
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Citations (4)
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US20030010454A1 (en) * | 2000-03-27 | 2003-01-16 | Bailey Andrew D. | Method and apparatus for varying a magnetic field to control a volume of a plasma |
US7153387B1 (en) * | 1999-08-20 | 2006-12-26 | Tokyo Electron Limited | Plasma processing apparatus and method of plasma processing |
TW200943468A (en) * | 2008-02-01 | 2009-10-16 | Tokyo Electron Ltd | Plasma processing device |
US20130043469A1 (en) * | 2010-04-06 | 2013-02-21 | Tetsufumi Kawamura | Thin-Film Transistor and Method for Manufacturing the Same |
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US7153387B1 (en) * | 1999-08-20 | 2006-12-26 | Tokyo Electron Limited | Plasma processing apparatus and method of plasma processing |
US20030010454A1 (en) * | 2000-03-27 | 2003-01-16 | Bailey Andrew D. | Method and apparatus for varying a magnetic field to control a volume of a plasma |
TW200943468A (en) * | 2008-02-01 | 2009-10-16 | Tokyo Electron Ltd | Plasma processing device |
US20130043469A1 (en) * | 2010-04-06 | 2013-02-21 | Tetsufumi Kawamura | Thin-Film Transistor and Method for Manufacturing the Same |
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