TWI835177B - 用於基板處理腔室的製程套件以及處理腔室 - Google Patents
用於基板處理腔室的製程套件以及處理腔室 Download PDFInfo
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Abstract
本文中描述的實施例大體涉及一種基板處理設備。在一個實施例中,本文中公開了一種用於基板處理腔室的製程套件。製程套件包括:環,環具有第一環部件和第二環部件;可調整調諧環;以及致動機構。第一環部件與第二環部件對接,使得第二環部件相對於第一環部件是可移動的,從而在這兩者之間形成間隙。可調整調諧環定位在環下方並且接觸第二環部件的底表面。可調整調諧環的頂表面接觸第二環部件。致動機構與可調整調諧環的底表面對接。致動機構被配置為致動可調整調諧環,使得第一環部件與第二環部件之間的間隙變化。
Description
本文中描述的實施例大體涉及一種基板處理設備,並且更特定地涉及一種用於基板處理設備的改進的製程套件。
隨著半導體技術節點進步使元件幾何結構大小減小,基板邊緣臨界尺寸一致性要求變得更加嚴格並且影響裸片良率。商用電漿反應器包括用於控制跨基板的製程一致性(例如,諸如溫度、氣流、RF電力,等等)的多個可調諧旋鈕。通常,在蝕刻製程中,矽基板在被靜電夾緊到靜電卡盤的同時被蝕刻。
在處理期間,被擱置在基板支撐件上的基板可能經歷在基板上沉積材料並且將材料的部分從基板去除、或蝕刻掉(通常以連續製程或交替製程進行)的製程。具有跨基板表面的均勻的沉積和蝕刻速率通常是有益的。然而,跨基板表面常常存在製程的不一致性,並且這種製程的不一致性可能在基板的周邊或邊緣處是顯著的。這些在周邊處的不一致性可歸因於電場終止影響,並且有時稱為邊緣效應。在沉積或蝕刻期間,有時提供含有至少沉積環的製程套件以有利地影響在基板周邊或邊緣處的一致性。
因此,一直需要一種用於基板處理設備的改進的製程套件。
本文中描述的實施例大體涉及一種基板處理設備。在一個實施例中,本文中公開了一種用於基板處理腔室的製程套件。製程套件包括:環;可調整調諧環;以及致動機構。環具有第一環部件和第二環部件。第一環部件與第二環部件對接,使得第二環部件相對於第一環部件是可移動的,從而在這兩者之間形成間隙。可調整調諧環被定位在環下方並且接觸第二環部件的底表面。可調整調諧環具有頂表面和底表面。可調整調諧環的頂表面接觸第二環部件。致動機構與可調整調諧環的底表面對接。致動機構被配置為致動可調整調諧環,使得第一環部件與第二環部件之間的間隙變化。
在另一實施例中,本文中公開了一種處理腔室。處理腔室包括基板支撐構件和製程套件。基板支撐構件被配置為支撐基板。製程套件由基板支撐構件支撐。製程套件包括:環;可調整調諧環;以及致動機構。環具有第一環部件和第二環部件。第一環部件與第二環部件對接,使得第二環部件相對於第一環部件是可移動的,從而在這兩者之間形成間隙。可調整調諧環被定位在環下方並且接觸第二環部件的底表面。可調整調諧環具有頂表面和底表面。可調整調諧環的頂表面接觸第二環部件。致動機構與可調整調諧環的底表面對接。致動機構被配置為致動可調整調諧環,使得第一環部件與第二環部件之間的間隙變化。
在另一實施例中,本文中公開了一種處理基板的方法。將基板定位在設置於基板處理腔室中的基板支撐構件上。在基板上方創建電漿。透過致動與邊緣環的部件對接的可調整調諧環來調整該部件的高度,以便改變在基板的邊緣處的離子的方向。
圖1是根據一個實施例的具有可調整調諧環150的處理腔室100的截面圖。如圖所示,處理腔室100是適於蝕刻基板(諸如基板101)的蝕刻腔室。可適於從本公開內容受益的處理腔室的示例是可從位於加利福尼亞州聖克拉拉的應用材料公司(Applied Materials, Inc., Santa Clara, California)商購的Sym3®處理腔室、C3®處理腔室和Mesa
™處理腔室。構想的是,其它處理腔室(包括沉積腔室和來自其它製造商的腔室)可適於從本公開內容受益。
處理腔室100可以用於各種電漿製程。在一個實施例中,處理腔室100可以用於利用一種或多種蝕刻劑執行乾法蝕刻。例如,處理腔室可以用於點燃來自前驅物C
xF
y(其中x和y可以是不同允許組合)、O
2、NF
3或以上項的組合的電漿。
處理腔室100包括腔室主體102、蓋元件104和支撐元件106。蓋元件104定位在腔室主體102的上部端部處。支撐元件106出現在由腔室主體102限定的內部容積108中。腔室主體102包括形成在其側壁中的狹縫閥開口110。狹縫閥開口110選擇性地打開和關閉以允許基板搬運機器人(未圖示)進入內部容積108。
腔室主體102可進一步包括襯裡112,襯裡112包圍支撐組件106。襯裡112可移除以進行維修和清潔。襯裡112可由諸如鋁的金屬、陶瓷材料或任何其它製程相容材料製成。在一個或多個實施例中,襯裡112包括一個或多個孔隙114和形成在其中的抽吸通道116,抽吸通道與真空埠118流體連通。孔隙114提供用於使氣體進入抽吸通道116的流路。抽吸通道116提供用於使腔室100內的氣體通向真空埠118的出口。
真空系統120耦接到真空埠118。真空系統120可以包括真空泵122和節流閥124。節流閥124調節透過腔室100的氣體的流量。真空泵122耦接到設置在內部容積108中的真空埠118。
蓋元件104包括至少兩個堆疊部件,該至少兩個堆疊部件被配置為兩者之間形成電漿容積或空腔。在一個或多個實施例中,蓋元件104包括第一電極126(「上部電極」),第一電極垂直地設置在第二電極128(「下部電極」)上方。上部電極126和下部電極128兩者之間約束電漿空腔130。第一電極126耦接到電源132,諸如RF電源。第二電極128連接到接地,從而在兩個電極126、128之間形成電容。上部電極126與氣體入口134流體連通。一個或多個氣體入口134的第一端部通向電漿空腔130。
蓋元件104還可包括將第一電極126與第二電極128電隔離的隔離環136。隔離環136可由氧化鋁或任何其它絕緣處理相容材料製成。
蓋元件還可包括氣體分配板138和阻擋板140。可將第二電極128、氣體分配板138和阻擋板140堆疊並且設置在耦接到腔室主體102的蓋邊緣142上。
在一個或多個實施例中,第二電極128可以包括多個氣體通路144,這些氣體通路形成在電漿空腔130下方,以便使來自電漿空腔130的氣體從中流過。氣體分配板138包括多個孔隙146,這些孔隙被配置為分配氣流從中穿過。阻擋板140可以可選地設置在第二電極128與氣體分配板138之間。阻擋板140包括多個孔隙148,用於提供從第二電極128到氣體分配板138的多個氣體通路。
支撐元件106可以包括支撐構件180。支撐構件180被配置為支撐基板101以便進行處理。支撐構件180可透過軸184耦接到升降機構182,軸184延伸穿過腔室主體102的底表面。升降機構182可由波紋管186來柔性密封到腔室主體102,波紋管防止軸184四周真空洩漏。升降機構182允許支撐構件180在腔室主體102內在下部傳送部分與多個升高製程位置之間垂直移動。另外,一個或多個升舉銷188可以穿過支撐構件180而設置。一個或多個升舉銷188被配置為延伸穿過支撐構件180,使得基板101可以從支撐構件180的表面升高。一個或多個升舉銷188可透過升降環190而活動。
圖2A是根據一個實施例的處理腔室100的一部分的局部截面圖,其示出了設置在支撐構件180上的製程套件200。支撐構件180包括靜電卡盤202、冷卻板(或陰極)204和基部206。冷卻板204設置在基部206上。冷卻板204可以包括多個冷卻通道(未圖示)以使冷卻劑穿過其中而迴圈。冷卻板204可透過黏合劑或任何合適機構與靜電卡盤202嚙合。一個或多個電源208可耦接到冷卻板204。靜電卡盤202可以包括一個或多個加熱器(未圖示)。一個或多個加熱器可以是可獨立控制的。一個或多個加熱器使得靜電卡盤202能夠從基板101的底表面將基板101加熱到期望溫度。
製程套件200可被支撐在支撐構件180上。製程套件200包括邊緣環210,邊緣環210具有環形主體212。環形主體212分成兩個邊緣環部件214、216。兩個邊緣環部件214、216彼此對接,使得部件216相對於部件214是可移動的。第一邊緣環部件214包括頂表面218、底表面220、內緣222和外緣224。頂表面218基本上平行於底表面220。內緣222基本上平行於外緣224,並且基本上垂直於底表面220。在一些實施例中,第一邊緣環部件214還包括了限定在其中的階梯狀的表面226。在所示出的實施例中,階梯狀的表面226形成在外緣224中,使得階梯狀的表面226基本上平行於底表面220。階梯狀的表面226限定用於接收第二邊緣環部件216的凹部。一般而言,第一邊緣環部件214的高度受到靜電卡盤202的高度限制。例如,第一邊緣環部件214的內緣222不延伸到靜電卡盤202的高度上方。因此,第一邊緣環部件214保護靜電卡盤202的一側。在一些實施例中,當定位在靜電卡盤202上時,基板101部分地延伸到第一邊緣環部件214上方。
第二邊緣環部件216包括頂表面228、底表面230、內緣232和外緣234。頂表面228基本上平行於底表面230。內緣232基本上平行於外緣234,並且基本上垂直於底表面230。在一個實施例中,第二邊緣環部件216經由底表面230與第一邊緣環部件214對接。例如,第二邊緣環部件216的底表面230與第一邊緣環部件214的階梯狀的表面226對接。在另一實施例中,第二邊緣環部件216還可包括限定在其中的階梯狀的表面236。在所示出的實施例中,階梯狀的表面236形成在內緣232中,使得階梯狀的表面236與第一邊緣環部件214的階梯狀的表面226對接。當與第一邊緣環部件214對接時,第二邊緣環部件216的內緣232與基板101間隔開來。例如,第二邊緣環部件216的內緣232可以與基板101間隔開在約0.02 mm與約0.1 mm之間的距離。
在一個實施例中,當對接時,第一邊緣環部件214和第二邊緣環部件216形成連續底表面238和連續頂表面240。在另一實施例中,當對接時,第一邊緣環部件214和第二邊緣環部件216不會形成連續底表面238或連續頂表面240。相反,在一些實施例中,第一邊緣環部件214的頂表面218可以高於第二邊緣環部件216的頂表面228。在其它實施例中,第二邊緣環部件216的底表面230可安置在第一邊緣環部件214的底表面220下方。因此,在一些實施例中,第一邊緣環部件214和第二邊緣環部件216不會形成連續的頂表面或底表面。
製程套件還包括具有頂表面254和底表面256的可調整調諧環150。可調整調諧環150可由諸如鋁之類的導電材料形成。可調整調諧環150設置在邊緣環210下方。例如,可調整調諧環150設置在第二邊緣環部件216下方。可調整調諧環150接觸邊緣環210的底表面238。例如,可調整調諧環150接觸第二邊緣環部件216的底表面230。在一個實施例中,可調整調諧環150沿著靜電卡盤202和冷卻板204的長度向下延伸,使得可調整調諧環150的高度基本上等於靜電卡盤202和冷卻板204的組合高度。因此,可調整調諧環150能夠將來自冷卻板204的電力耦合到邊緣環210。
可調整調諧環150可以環繞冷卻板204,從而形成側向間隔開的間隙258。在一個實例中,側向間隔開的間隙258大於0吋而小於或等於0.03吋。可調整調諧環150與升舉銷260對接。例如,升舉銷260可與可調整調諧環150可操作地耦接。升舉銷260由升降機構182驅動。在一些實施例中,升舉銷260可由獨立於升降機構182的升降機構(未圖示)驅動。升降機構182允許可調整調諧環150在腔室100內垂直移動。由於調諧環150的垂直移動,升降機構182升高第二邊緣環部件216。第二邊緣環部件216可升高到第一邊緣環部件214上方,從而在第一邊緣環部件的階梯狀的表面與第二邊緣環部件的階梯狀的表面之間形成間隙(圖4B中的299)。
在一個實施例中,可調整調諧環150可以包括形成在可調整調諧環150的頂表面254上的塗層263。例如,塗層263可以是氧化釔塗層或凝膠狀塗層。塗層263用於限制電漿與可調整調諧環150之間的化學反應,並且因此限制顆粒形成和環損壞。在另一實施例中,一個或多個介電質墊(例如,特氟龍墊)306被定位在邊緣環210與靜電卡盤之間,邊緣環210安置在靜電卡盤上。
在另一實施例(諸如圖2B中示出的實施例)中,可調整調諧環150可以手動移動,從而減弱對升舉銷260的需要。調諧環150可以包括空腔262和形成在其中的進出孔口264。進出孔口264從可調整調諧環150的頂部形成,並且向下延伸到空腔262中。進出孔口264具有第一直徑266,第一直徑266小於空腔262的第二直徑268。空腔262形成在進出孔口264下方。空腔262向下形成到調諧環150的底部。空腔262被配置為容納螺釘270。螺釘270可以經由六角扳手(未圖示)轉動,例如,從而經由進出孔口264延伸到空腔262中,使得螺釘270可以升高/降低調諧環150。
結合圖2A和圖2B而論述的,製程套件200還可包括石英環272。石英環272包括環狀主體274,環狀主體274具有頂表面276、底表面278、內緣280和外緣282。頂表面276基本上平行於底表面278。內緣280基本上平行於外緣282,並且基本上垂直於底表面278。內緣280鄰近可調整調諧環150和邊緣環210而定位。
圖3是根據一個實施例的圖1的處理腔室的一部分的簡化截面圖,其描繪了兩個電容。電力可以從陰極204沿著穿過兩個電容302、304的兩條路徑耦合到邊緣環210。耦合的電力量取決於相對於在環210與電漿之間的電容305的沿著這兩條路徑的電容。根據電漿條件,電容305可以變化。例如,電容305可以從5 pF變化達到150 pF。在另一實例中,在可調整調諧環150上下移動時,電容304可以因在兩個邊緣環部件214、216之間形成平行板電容器而在約10 pF與約500 pF之間變化。當可調整調諧環150上下移動時,電容302亦會變化,因為可調整調諧環150與陰極204之間存在重疊區域。可調整調諧環150和陰極204的定位形成平行板電容器。在可調整調諧環150上下移動時,可調整調諧環150與陰極204之間的重疊區域變化,這導致了電容302變化。然而,電容302變化是有限的,因為垂直移動的幅度相對於可調整調諧環150與陰極204重疊的長度是小的。例如,垂直移動的幅度可以為約0 mm至約2 mm,而可調整調諧環150的重疊陰極的長度為約3cm。因此,電容302保持高於某閾值量。例如,電容302可以保持高於1000 pF。因此,在陰極204與邊緣環210之間的電容(其為電容302和304的總和)總是至少比電容305高一個量級。因此,邊緣環210的電位
𝑉
DC 保持近似恆定。例如,電位變化可能不超過5%。維持施加到邊緣環210的電壓
𝑉
DC 恆定允許控制圍繞基板101和邊緣環210的電漿殼層。它的效應在下文中結合圖4更詳細地論述。
圖4示出了根據一個實施例的處理腔室100的一部分,其示出了本公開內容的另一優點。電壓
𝑉
DC 可以用於控制在基板101的邊緣406處的電漿殼層404輪廓,以便補償在基板邊緣406處的臨界尺寸一致性。電漿殼層404是由空間電荷形成的強電場的薄區域,它將電漿主體結合到其材料邊界。在數學上,殼層厚度
d由Child-Langmuir方程表示:
其中
𝑖是離子電流密度,
ε是真空的介電常數,
𝑒是基本電荷,
𝑉
𝑝 是電漿電位,而
𝑉 DC 是DC電壓。
在蝕刻反應器情況下,在電漿與正被蝕刻的基板101、腔室主體102以及處理腔室100的與電漿接觸的其它部分之間形成電漿殼層404。電漿中產生的離子在電漿殼層中加速並且垂直於電漿殼層而移動。控制
𝑉
DC (即,控制施加到邊緣環210的電壓)影響殼層404的厚度
d。殼層404的殼層厚度
d可相對於邊緣環210進行量測。例如,圖4A和圖4B中描繪了厚度
d。在所示出的實施例中,致動可調整調諧環150使第二邊緣環部件216升高。由於
𝑉
DC 保持恆定,因此在邊緣環210上方的殼層厚度保持恆定。因此,致動可調整調諧環150使殼層404垂直升高而不影響殼層厚度。因此,移動可調整調諧環150影響在基板101的邊緣406處的殼層404的形狀,這進而控制電漿離子的方向。
圖4B示出了圖4A的處理腔室100的部分,其中第二邊緣環部件216處於升高位置。如圖所示,並且如圖4A所論述的,升高可調整調諧環150使第二邊緣環部件216升高,這進而使殼層404升高。由於電位
𝑉
DC 因近似固定電容302而保持近似恆定,因此殼層404的厚度𝑑始終保持恆定。
返回參考圖1,對可調整調諧環的控制可由控制器191控制。控制器191包括可程式設計的中央處理單元(CPU)192,CPU 192可與記憶體194以及大型存放區裝置、輸入控制單元和顯示單元(未圖示)一起操作,諸如電源、時鐘、快取記憶體、輸入/輸出(I/O)電路和襯裡,耦接到處理系統的各種部件以便促成對基板處理的控制。
為了促成對上述腔室100的控制,CPU 192可以是可在工業環境中使用的任何形式的通用電腦處理器中的一種,諸如可程式設計邏輯控制器(PLC),用於控制各種腔室和子處理器。記憶體194耦接到CPU 192,並且記憶體194是非暫態的,而且可以是容易獲得的記憶體中的一種或多種,諸如隨機存取記憶體(RAM)、唯讀記憶體(ROM)、軟碟機、硬碟或任何其它形式數位存儲裝置(本端的或遠端的)。支援電路196耦接到CPU 192,以便以常規的方式支援處理器。帶電荷的物質生成、加熱和其它製程一般存儲在記憶體194中,通常是作為軟體常式。軟體常式還可以由位置遠離由CPU 192控制的處理腔室100的第二CPU(未圖示)存儲和/或執行。
記憶體194呈含有指令的電腦可讀存儲介質的形式,所述指令在由CPU 192執行時促成腔室100的操作。記憶體194中的指令呈程式產品的形式,諸如實現本公開內容的方法的程式。程式碼可符合許多不同程式設計語言中的任一種。在一個實例中,可將本公開內容實現為存儲在用於與電腦系統一起使用的電腦可讀存儲介質上的程式產品。程式產品的程式限定實施例的功能(包括本文中描述的方法)。說明性電腦可讀存儲介質包括但不限於:(i) 其上永久存儲資訊的不可寫入存儲介質(例如,電腦內的唯讀記憶體裝置,諸如可由CD-ROM驅動器讀出的CD-ROM盤、快閃記憶體、ROM晶圓或任何類型固態非易失性半導體記憶體);以及(ii) 其上存儲可更改的資訊的可寫入的存儲介質(例如,磁碟機內的軟碟或硬碟驅動器或任何類型固態隨機存取半導體記憶體)。在執行指示本文中描述的方法的功能的電腦可讀指令時,此類電腦可讀存儲介質是本公開內容的實施例。
儘管前述內容針對特定實施例,但是亦可在不脫離本發明的基本範圍的情況下構想其它和進一步實施例,並且本發明的範圍是由隨附的申請專利範圍決定。
100:腔室
101:基板
102:腔室主體
104:蓋元件
106:支撐組件
108:內部容積
110:狹縫閥開口
112:襯裡
114:孔隙
116:抽吸通道
118:真空埠
120:真空系統
122:真空泵
124:節流閥
126:第一電極
128:下部電極
130:電漿空腔
132:電源
134:氣體入口
136:隔離環
138:氣體分配板
140:阻擋板
142:蓋邊緣
144:氣體通路
146:孔隙
148:孔隙
150:調諧環
180:支撐構件
182:升降機構
183:升降機構
184:軸
186:波紋管
188:升舉銷
190:升降環
191:控制器
192:CPU
194:記憶體
196:支援電路
200:製程套件
202:靜電卡盤
204:陰極
206:基部
208:電源
210:邊緣環
212:環狀主體
214:第一部件
216:第二部件
218:頂表面
220:底表面
222:內緣
224:外緣
226:階梯狀的表面
228:頂表面
230:底表面
232:內緣
234:外緣
236:階梯狀的表面
238:連續底表面
240:連續頂表面
254:頂表面
256:底表面
258:側向間隔開的間隙
260:升舉銷
262:空腔
263:塗層
264:進出孔口
266:第一直徑
268:第二直徑
270:螺釘
272:石英環
274:環形主體
276:頂表面
278:底表面
280:內緣
282:外緣
302:固定電容
304:電容
404:電漿殼層
406:邊緣
因此,為了詳細理解本公開內容的上述特徵結構所用方式,上文所簡要概述的本公開內容的更特定的描述可以參考實施例進行,一些實施例示出在附圖中。然而,應當注意,附圖僅示出了本公開內容的典型實施例,並且因此不應視為限制本公開內容的範圍,因為本公開內容可允許其它等效實施例。
圖1是根據一個實施例的處理腔室的截面圖。
圖2A是根據一個實施例的圖1的處理腔室的放大局部截面圖。
圖2B是根據一個實施例的圖1的處理腔室的放大局部截面圖。
圖3是根據一個實施例的圖1的處理腔室的一部分的簡化截面圖,其描繪了兩個電容路徑。
圖4A是根據一個實施例的圖1的處理腔室的一部分的簡化截面圖,其示出了本公開內容的另一優點。
圖4B是根據一個實施例的圖1的處理腔室的一部分的簡化截面圖,其示出了本公開內容的另一優點。
為了清楚起見,已儘可能使用相同參考數位指定各圖所共有的相同要素。另外,一個實施例中的要素可有利地適於用於本文中描述的其它實施例中。
國內寄存資訊(請依寄存機構、日期、號碼順序註記)
無
國外寄存資訊(請依寄存國家、機構、日期、號碼順序註記)
無
101:基板
150:調諧環
180:支撐構件
202:靜電卡盤
204:冷卻板(或陰極)
206:基部
208:電源
209:頂表面
210:邊緣環
212:環形主體
214:第一邊緣環部件
216:第二邊緣環部件
218:頂表面
220:底表面
222:內緣
224:外緣
226:階梯狀的表面
228:頂表面
230:底表面
232:內緣
234:外緣
236:階梯狀的表面
238:連續的底表面
240:連續的頂表面
254:頂表面
256:底表面
258:側向間隔開的間隙
260:升舉銷
263:塗層
272:石英環
274:環形主體
276:頂表面
278:底表面
280:內緣
282:外緣
Claims (20)
- 一種用於一基板處理腔室的製程套件,該製程套件包括:一環,該環具有一第一邊緣環部件和一第二邊緣環部件,該第一邊緣環部件與該第二邊緣環部件對接,使得該第二邊緣環部件相對於該第一邊緣環部件是可移動的,從而在這兩者之間形成一間隙;一可調整調諧環,該可調整調諧環被定位在該第二邊緣環部件的下方並且接觸該第二邊緣環部件的一底表面,該可調整調諧環具一頂表面和一底表面,該可調整調諧環的該頂表面接觸該第二邊緣環部件;以及一致動機構,該致動機構與該可調整調諧環的該底表面對接,該致動機構被配置為致動該可調整調諧環,使得該第一邊緣環部件與該第二邊緣環部件之間的該間隙變化。
- 如請求項1所述之製程套件,其中該可調整調諧環由一導電材料形成。
- 如請求項1所述之製程套件,其中該第一邊緣環部件包括:形成在其中的一階梯狀表面。
- 如請求項3所述之製程套件,其中該第二邊緣環部件包括:形成在其中的一階梯狀表面,其中該第二邊緣環部件的階梯狀表面與該第一邊緣環部件的階梯狀表面對接。
- 如請求項1所述之製程套件,其中該致動機構包括:一升舉銷,該升舉銷具有一第一端部和一第二端部,該升舉銷的該第一端部接觸該可調整調諧環的該底表面,該升舉銷的該第二端部與一升降機構連通。
- 如請求項1所述之製程套件,其中該致動機構被配置為將形成在電漿與該環之間的一電漿殼層上下推動,同時藉由升高與降低該第二邊緣環部件來維持該電漿殼層厚度近似恆定。
- 如請求項6所述之製程套件,其中該可調整調諧環包括:一環形主體,具有該可調整調諧環的該頂表面和該底表面;一空腔,形成在該環形主體的該底表面中;以及一進出孔口,形成在該環形主體中,該進出孔口從該環形主體的該頂表面延伸到該空腔內。
- 如請求項7所述之製程套件,其中該空腔具有一第一直徑,以及該進出孔口具有一第二直徑,該第一直徑大於該第二直徑,以及該致動機構是被至少部分地設置在該空腔中的一螺釘,該螺釘被配置為旋轉穿過該進出孔口,以便致動該可調整調諧環。
- 一種用於一基板處理腔室的製程套件,該製程套件包括:一環,該環具有一第一邊緣環部件和一第二邊緣環部 件,該第一邊緣環部件與該第二邊緣環部件對接,使得該第二邊緣環部件相對於該第一邊緣環部件是可移動的,從而在這兩者之間形成一間隙;一可調整調諧環,該可調整調諧環被定位在該第二邊緣環部件的下方並徑向地在該第一邊緣環部件之外,該可調整調諧環具一頂表面和一底表面,該可調整調諧環的該頂表面接觸該第二邊緣環部件的一底表面;以及一致動機構,該致動機構與該可調整調諧環的該底表面對接,該致動機構被配置為致動該可調整調諧環,使得該第一邊緣環部件與該第二邊緣環部件之間的該間隙變化。
- 如請求項9所述之製程套件,其中該可調整調諧環由一導電材料形成。
- 如請求項9所述之製程套件,其中該第一邊緣環部件包括:形成在其中的一階梯狀表面。
- 如請求項11所述之製程套件,其中該第二邊緣環部件包括:形成在其中的一階梯狀表面,其中該第二邊緣環部件的階梯狀表面與該第一邊緣環部件的階梯狀表面對接。
- 如請求項9所述之製程套件,其中該致動機構包括:一升舉銷,該升舉銷具有一第一端部和一第二端部,該升舉銷的該第一端部接觸該可調整調諧環的該底表面, 該升舉銷的該第二端部與一升降機構連通。
- 如請求項9所述之製程套件,其中該致動機構被配置為將形成在電漿與該環之間的一電漿殼層上下推動,同時藉由升高與降低該第二邊緣環部件來維持該電漿殼層厚度近似恆定。
- 如請求項9所述之製程套件,其中該可調整調諧環包括:一環形主體,具有該可調整調諧環的該頂表面和該底表面;一空腔,形成在該環形主體的該底表面中;以及一進出孔口,形成在該環形主體中,該進出孔口從該環形主體的該頂表面延伸到該空腔內。
- 如請求項15所述之製程套件,其中該空腔具有一第一直徑,以及該進出孔口具有一第二直徑,該第一直徑大於該第二直徑,以及該致動機構是被至少部分地設置在該空腔中的一螺釘,該螺釘被配置為旋轉穿過該進出孔口,以便致動該可調整調諧環。
- 一種處理一基板的方法,包括以下步驟:將該基板定位在設置於一基板處理腔室中的一基板支撐件上;在該基板上方形成一電漿;將離子引導至一第一方向;以及透過致動與一邊緣環的一環部件對接的一可調整調諧環來調整該環部件的一高度,以將該基板支撐件上方的 一或更多離子引導至與該第一方向不同的一第二方向。
- 如請求項17所述之方法,其中調整該環部件的該高度的步驟推動形成在電漿與該邊緣環之間的一電漿殼層,同時維持該電漿殼層厚度近似恆定。
- 如請求項17所述之方法,其中致動該可調整調諧環的步驟包括升高或降低與該可調整調諧環的一底表面接觸的一個或更多個升舉銷。
- 如請求項17所述之方法,其中該可調整調諧環包括形成在該可調整調諧環的一底表面中的一空腔以及形成在該可調整調諧環中的一進出孔口,該進出孔口從該可調整調諧環的一頂表面延伸到該空腔內,以及致動該可調整調諧環的步驟包括旋轉至少部分地設置在該空腔中的一螺釘。
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2017
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US20180218933A1 (en) | 2018-08-02 |
US10991556B2 (en) | 2021-04-27 |
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