TWI638387B - 在沉積室中製造具有磊晶層的半導體晶圓的方法、用於製造具有磊晶層的半導體晶圓的設備、及具有磊晶層的半導體晶圓 - Google Patents

在沉積室中製造具有磊晶層的半導體晶圓的方法、用於製造具有磊晶層的半導體晶圓的設備、及具有磊晶層的半導體晶圓 Download PDF

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TWI638387B
TWI638387B TW105139026A TW105139026A TWI638387B TW I638387 B TWI638387 B TW I638387B TW 105139026 A TW105139026 A TW 105139026A TW 105139026 A TW105139026 A TW 105139026A TW I638387 B TWI638387 B TW I638387B
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epitaxial layer
semiconductor wafer
pedestal
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substrate wafer
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TW201721718A (zh
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派翠克 慕斯
林哈德 蕭爾
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世創電子材料公司
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Abstract

在沉積室中製造具有磊晶層的半導體晶圓的方法，用於製造具有磊晶層的半導體晶圓的設備，及具有磊晶層的半導體晶圓。該方法包含將基板晶圓以基板晶圓的後側的邊緣區域放置到基座的放置區上； 藉由接觸該基座並將該基座及位於該基座上的基板晶圓從裝載鎖定室傳送到該沉積室中，使該沉積室裝載該基座及位於該基座上的基板晶圓； 在該基板晶圓上沉積一磊晶層； 藉由接觸該基座並且將該基座及具有磊晶層的半導體晶圓從該沉積室傳送到該裝載鎖定室中，卸載該沉積室，該半導體晶圓在沉積該磊晶層的過程中已經被製造並且位於該基座上。

Description

在沉積室中製造具有磊晶層的半導體晶圓的方法、用於製造具有磊晶層的半導體晶圓的設備、及具有磊晶層的半導體晶圓
本發明係關於一種在沉積室中製造具有磊晶層的半導體晶圓的方法、一種用於製造具有磊晶層的半導體晶圓的設備、及一種具有磊晶層的半導體晶圓。
通常藉由氣相沉積（化學氣相沉積，CVD）製造具有磊晶層的半導體晶圓。這種方法包含將基板晶圓放置在基座上，並在高溫下使沉積氣體通過沉積室。在被沉積氣體掃過的基板晶圓的表面上成長磊晶層。該表面通常是水平放置的基板晶圓的頂面。除了被設計用於處理個別基板晶圓的沉積室之外，常規沉積系統還包含至少一個裝載鎖定室，其中，在沉積磊晶層之前將基板晶圓從該至少一個裝載鎖定室傳送到沉積室中，並且在沉積磊晶層之後將具有磊晶層的半導體晶圓傳送到該至少一個裝載鎖定室中，以便允許具有磊晶層的半導體晶圓在裝載鎖定室冷卻。傳送過程有利地使用電腦控制的傳送工具實現。這種沉積系統係例如在EP 0 800 203 A2中描述。
US 2008／0 118 712 A1描述了一種用於製造具有磊晶層的半導體晶圓的方法，其中使用二部件式的基座。一個部件由具有用於基板晶圓以其後側的邊緣區域放置的放置區的環所形成。另一部件由底座形成，在沉積磊晶層期間該環位於底座上。US 6 316 361描述了提供一種沒有底座之環作為基座的實施例。
用於在沉積室中製造具有磊晶層的半導體晶圓的已知方法面臨一系列問題。沉積室需考量例如基板晶圓的後側。基板晶圓的後側是基板晶圓的下表面，其面向基座。在將基板晶圓放置在基座上的過程中，基板晶圓的後側同時位於升降銷上，該升降銷通常由熱膨脹性能不同於基板晶圓的硬的熱穩定材料製成。如果升降銷的溫度不同於基板晶圓的溫度，這是例如當在之前的沉積後將沉積室裝載基板晶圓時，可發生升降銷與基板晶圓之間的相對運動的情況。由於這個原因，基板晶圓可以從相對於基座的同心位置移位及／或基板晶圓的後側可能被損壞及／或產生干擾顆粒。即使不發生這樣的相對移動，在塗覆基板晶圓之後，可以檢測表示具有磊晶層的半導體晶圓上的基座的結構的跡線（trace）。這種跡線可以在具有磊晶層的半導體晶圓的後側上或前側上或者在具有磊晶層的半導體晶圓的後側上及前側上檢測。磊晶層的表面也是具有磊晶層的半導體晶圓的前側的表面。所提及的結構包含基座中的孔及升降銷本身，基座中的孔允許升降銷接近基板晶圓。由此造成的跡線可被檢測為銷痕缺陷。孔及升降銷佈置在基板晶圓下方的事實影響在磊晶層的沉積期間基板晶圓上的溫度場。在溫度場中，存在比溫度場中的平均溫度低的溫度及／或高的溫度的位置，結果是在該等位置處分別沉積了比預期更少及／或更多的材料。溫度場中的梯度由孔及升降銷引起，因孔及升降銷耗散比圍繞它們的基座材料更多或更少的熱。
WO 97／14 179 A1描述了一種用於處理半導體晶圓的系統，其不用升降銷操作。根據伯努利原理操作的搬運工具用於傳送基板晶圓或具有磊晶層的半導體晶圓。不利的是，具有磊晶層的半導體晶圓在邊緣的區域中被這種搬運工具損壞。由於這種損壞，半導體晶圓在損壞位置處斷裂的風險增加。損壞是由於在搬運工具及具有磊晶層的半導體晶圓之間流動的氣流使具有磊晶層的半導體晶圓的邊緣壓靠在搬運工具的邊界上而引起的。所引起的損壞可例如藉由使用共焦顯微鏡或AFM（原子力顯微鏡）顯微照片的檢查來識別。WO 2010／015 694 A1描述了例如用於檢查半導體晶圓的邊緣的合適的設備。
WO 99／27 577 A1描述了一種用於處理半導體晶圓的設備，其包含二部件式基座單元，二部件式基座單元不具有用於升高具有磊晶層的半導體晶圓的升降銷，該設備並且包含基板轉移系統，該基板轉移系統免除根據伯努利原理操作的搬運工具。在基座單元的外區段及內區段之間存在間隙。與基座中的上述孔類似的方式，間隙表示基座中的結構，其對基板晶圓上的溫度場具有干擾效應。因此，二部件式基座單元的間隙在具有磊晶層的半導體晶圓上產生對間隙進行成像的跡線，其可被檢測的。
可用各種方法於檢測具有磊晶層的半導體晶圓的前側及／或後側上的上述跡線。藉由例如，US 2012／0 177 282 A1及US 2012／0 179 419 A1中描述的檢測方法係基於藉由干涉測量獲得的形貌資料的評估，該評估被稱為局部特徵量度（Localized Feature Metrics, LFM）。因此可以創造關於具有磊晶層的半導體晶圓的前側及後側的奈米形貌的局部外形圖。外形輪廓中的最大值及最小值（峰及谷）可分配至上述跡線。
上述跡線也可例如憑藉於基於雷射散射的資料的評估來檢測。使用該測量方法的設備例如在US 2010／0 195 097 A1中描述。
此外，憑藉於SIRD（掃描紅外去極化）的檢測也是可能的，其係一種可用於測量具有磊晶層的半導體晶圓中的應力的方法。US 2004／0 021 097A1描述了一種憑藉於SIRD檢測半導體晶圓上的缺陷的方法。
本發明所闡述的目的產生自所描述的問題。
本發明的目的係憑藉於用於在沉積室中製造具有磊晶層的半導體晶圓的方法來實現，該方法包含： 將基板晶圓以基板晶圓的後側的邊緣區域放置在基座的放置區上； 藉由接觸該基座並將該基座及位於該基座上的基板晶圓從裝載鎖定室傳送到該沉積室中，使該沉積室裝載該基座及位於該基座上的基板晶圓； 在該基板晶圓上沉積一磊晶層； 藉由接觸該基座並且將該基座及具有磊晶層的半導體晶圓從該沉積室傳送到該裝載鎖定室中，卸載該沉積室，該半導體晶圓在沉積該磊晶層的過程中已經被製造並且位於該基座上。
此外，本發明目的憑藉於用於製造具有磊晶層的半導體晶圓的設備來實現，該設備包含： 沉積室； 裝載鎖定室； 基座，其具有用於以該基板晶圓的後側的邊緣區域放置基板晶圓的放置區； 升降元件，其用於以從下方接觸該基座的方式升高及降低該基座以及位於該基座上的基板晶圓或具有磊晶層的半導體晶圓；以及 接觸該基座的傳送工具，其用於將該基座及位於該基座上的基板晶圓從該裝載鎖定室傳送到該沉積室中，並用於將該基座及位於該基座上的具有磊晶層的半導體晶圓從該沉積室傳送到該裝載鎖定室中。
最後，本發明目的憑藉於具有磊晶層的半導體晶圓實現，該半導體晶圓具有前側、後側及邊緣，其中在前側上及後側上1毫米邊緣排除區域之外既無法檢測到銷痕缺陷也無法檢測到表示間隙的成像的缺陷，並且在邊緣處不存在具有大於100奈米的深度的損壞。
較佳地，在具有磊晶層的半導體晶圓的邊緣處不存在具有大於50奈米的深度的損壞。
具有磊晶層的半導體晶圓的前側及後側因此沒有跡線，表示在磊晶層的沉積期間，半導體晶圓被佈置在具有升降銷的孔上方及／或在基座中的間隙上方，並且具有磊晶層的半導體晶圓的邊緣沒有搬運工具的壓痕。
基板晶圓及基座的不同熱膨脹行為可以具有如下效果：當基板晶圓及基座被加熱到沉積溫度時，基板晶圓及基座的相對運動開始。然而，該相對運動是輕微的，並且在具有磊晶層的半導體晶圓的後側上的相對運動的可能可檢測的跡線保持在1毫米的邊緣排除區域內，也就是說，在不超過距具有磊晶層的半導體晶圓的邊緣大於1毫米的距離處。
銷痕缺陷或表示間隙成像的缺陷具有不大於15毫米的徑向長度及至少±5奈米的相對於缺陷的周圍的高度偏差。
這種缺陷的存在是可檢測的，例如藉由來自KLA Tencor的WaferSight 2型的計量系統的測量資料的LFM評估；或者在來自KLA Tencor的Surfscan® SP3檢查系統的霧度圖（haze map）上，這種缺陷是可識別的；或者在來自Rudolph Technologies的AWXTM 型的檢查系統的奈米形貌圖上或來自PVA TePla的系統的SIRD圖上，這種缺陷是可視的。
圖7以代表性的方式示出了堆疊的奈米形貌圖，在其上可以看到在每種情況下的三個銷痕缺陷的組，其中一組的銷痕缺陷距相應的鄰近物體處於大約120°的徑向距離處。
可以例如藉由憑藉於AFM或憑藉於共焦顯微鏡的檢查來驗證在由根據伯努利原理操作的搬運工具引起的具有磊晶層的半導體晶圓的邊緣處的損壞。根據圖8的顯微照片示出了這種損壞。
根據本發明的具有磊晶層的半導體晶圓較佳是由具有由單晶矽構成的磊晶層的單晶矽所構成的半導體晶圓。根據本發明的具有磊晶層的半導體晶圓係將磊晶層沉積於具有較佳拋光的前側及拋光的後側的單晶矽構成的基板晶圓上而產生的。基板晶圓較佳藉由同時拋光其前側及後側，也就是說藉由雙側拋光（DSP）來拋光。具有磊晶層的半導體晶圓的直徑較佳不小於200毫米，特別佳不小於300毫米。
本發明具有一些優點。在沉積室中，不需要提供用於升高基板晶圓或具有磊晶層的半導體晶圓的升降銷，並且為此不需要在基座中提供必要的孔。實際上排除了基板晶圓從所設想的相對於基座的同心位置的相當大的滑動（離開囊袋（out-of-pocket）情況）。根據本發明方法製造的具有磊晶層的半導體晶圓的特徵在於前側、後側及邊緣的特定品質。
這些優點特別是源自基板晶圓與基座或具有磊晶層的半導體晶圓與基座作為一個單元藉由傳送工具從裝載鎖定室傳送到沉積室中或從沉積室傳送到裝載鎖定室中。傳送工具在傳送過程期間固持該單元係僅依靠基座。基板晶圓或具有磊晶層的半導體晶圓在單元的傳輸期間僅與基座接觸。基座為一環，並且在基座的內邊緣處具有放置區，基板晶圓或具有磊晶層的半導體晶圓以各自的後側的邊緣區域放置於放置區上。該環較佳地具有在US 2008／0 118 712 A1中描述的形式並且具有其中描述的尺寸及材料特性。還較佳將沉積室中的環放置在底座上，使得環及底座形成二部件式基座。底座較佳地具有US 2008／0 118 712 A1中描述的尺寸及材料特性。
基板晶圓藉由搬運工具佈置在裝載鎖定室中，使得基板晶圓可以放置在環上。一旦將基板晶圓放置在環上，位於環上的基板晶圓藉由傳送工具從裝載鎖定室傳送到沉積室中。在傳送期間，傳送工具與環接觸，而不與基板晶圓接觸。在沉積室中，環被放置到升降銷上，並且升降銷被降低到沉積位置的過程中與環接觸而不與基板晶圓接觸。在沉積位置中，環較佳位於底座上、並且環與底座形成二部件式基座。
在磊晶層已經沉積在基板晶圓上之後，所得到的具有磊晶層的半導體晶圓藉由升降銷與環一起被升高並被轉移到傳送工具。再次，升降銷僅觸及環，而不觸及位於環上的具有磊晶層的半導體晶圓，並且再次，在環及位於環上的具有磊晶層的半導體晶圓從沉積室傳送進入裝載鎖定室期間，傳送工具與環接觸，但是不與具有磊晶層的半導體晶圓接觸。在卸載沉積室的過程期間，具有磊晶層的半導體晶圓的溫度較佳不低於650℃，特別較佳不低於700℃。
考慮到概述的程序，在沉積室中，基板晶圓或具有磊晶層的半導體晶圓的溫度與環的溫度之間的溫度差不超過50℃，較佳不超過20℃。
包含環及環上具有磊晶層的半導體晶圓的單元在裝載鎖定室中分離。在該時間點具有磊晶層的半導體晶圓的溫度明顯低於在磊晶層沉積後即刻當下的溫度。因此，與升降銷的接觸較不關鍵。由於此較低的溫度，關於允許與具有磊晶層的半導體晶圓接觸的材料，還可以考慮僅在相對低的溫度下穩定的材料，例如塑膠。這種材料大體上也具有相對低等級的硬度。使用這種材料是較佳的，這是因為因此具有磊晶層的半導體晶圓的後側可被觸及，並且仍然可靠地保護防止機械損壞。
在裝載鎖定室中，具有磊晶層的半導體晶圓藉由升降銷從環升高，並且在傳送工具及由升降銷固持的環已經離開裝載鎖定室之後，該具有磊晶層的該半導體晶圓較佳地藉由升降銷的下降被放置在裝載鎖定室的底部處的冷卻塊，並且被進一步冷卻。在該時刻，在裝載鎖定室中，較佳已經有為新的沉積循環所準備的基板晶圓。在這方面，具有環的傳送工具可以再次進入裝載鎖定室，並且藉由將所準備的基板晶圓放置在環上用於隨後將環及位於環上的基板晶圓的傳送到沉積室中而可以開始新的沉積循環。
在所準備的基板晶圓上的磊晶層的沉積期間，冷卻的具有磊晶層的半導體晶圓藉由升降銷從冷卻塊升高，轉移到搬運工具並從裝載鎖定室運送到傳送容器中，以便為在新的沉積循環中所產生的具有磊晶層的半導體晶圓來提供空間。
下面參照附圖描述本發明的特別較佳的特徵。
關於根據本發明的方法的上述實施例所指定的特徵可以相應地應用於根據本發明的設備。反之，關於根據本發明的設備的上述實施例的特定的特徵也可以相應地應用於根據本發明的方法。根據本發明的實施例的這些及其它特徵係在附圖的描述中及請求項中解釋。各個特徵可以單獨地或組合地實現為本發明的實施例。此外，它們可以描述可獨立保護的有利實施例。
根據本發明的示例性實施例的詳細描述
圖1示出了根據本發明的用於製造具有磊晶層的半導體晶圓的設備。該圖示出了包含聚集在傳送工具7周圍的兩個裝載鎖定室3及兩個沉積室2的示例性實施例。傳送工具7基本上是固定至機器人10的端部執行器8。端部執行器8具有用於承載基座的指狀物。機器人10被構造成使得端部執行器8可被引入到裝載鎖定室3中並在裝載鎖定室升高及降低。
根據圖2的裝載鎖定室3具有用於傳送工具7及搬運工具11且彼此相對定位的進出槽9、以及作為特殊結構且能夠水平移動的上固持夾具12及下固持夾具13。上固持夾具12及下固持夾具13分別形成一對彼此相對佈置的固持夾具。每對固持夾具可從釋放位置移動到固持位置中。在釋放位置中，一對的固持夾具處於非活動狀態（inactive state）並且彼此遠離地向外抽出。在固持位置中，固持夾具處於活動狀態（active state）。固持夾具朝向彼此移動並且彼此相距一定距離，這使得它們能夠以向中心的方式接收並固持從上方放置的晶圓。上固持夾具12被提供用於接收及固持基板晶圓，且下固持夾具13被提供用於接收及固持具有磊晶層的半導體晶圓。圖2還示出了傳送工具7的端部執行器8以及具有鏟（scoop）形式的搬運工具11，傳送工具7上放置有基座，基座為環5，晶圓可以以向中心的方式放置在鏟上。具有較佳為圓柱形的冷卻塊14形成裝載鎖定室的底部。
在圖3中的俯視圖中可以看到冷卻塊14。出於冷卻的目的，設置成將具有磊晶層的半導體晶圓放置在冷卻塊14的上側上。冷卻塊14具有用於接收外升降元件16及內升降銷15的孔。用於內升降銷15的孔距冷卻塊14的中心的距離小於用於外升降元件16的孔距冷卻塊14的中心的距離。上述孔佈置成與冷卻塊14的邊緣足夠遠的距離，以在內升降銷15升高時避免與環5、搬運工具11或傳送工具7接觸。關於上述孔的徑向位置，用於內升降銷15的孔較佳地以相對於用於外升降元件16的孔偏移的方式佈置，也就是說，孔位於不同的半徑上。較佳地，存在至少三個外升降元件16及至少三個內升降銷15。此外，圖3示出了其上放置有基板晶圓4的搬運工具11及其上放置有環5的傳送工具7，該環具有用於放置基板晶圓4的放置區23。
沉積室包含用於氣相沉積的常規單晶圓反應器的特徵，較佳來自製造商Applied Materials的EPI CENTURA® 型的單晶圓反應器或來自製造商Advanced Semiconductor Materials的單晶圓反應器。因此，圖4僅示出有助於理解本發明的特徵及／或本發明特徵。沉積室2包含用於支撐基座的支撐裝置19。根據所示的較佳實施例，支撐裝置19設計成用於支撐由環5及底座20構成的二部件式基座。環5可以放置在底座20上，並且在放置狀態下，較佳地嵌入底座20中。支撐裝置19包含可垂直移動的升降銷21，升降銷的構造方式使得升降銷在升高過程期間從下面接觸環5。然而，沉積室2沒有可接觸並升高基板晶圓4或具有磊晶層的半導體晶圓之可垂直移動的升降銷。
下面描述用於製造具有磊晶層的半導體晶圓的方法的順序。
首先，裝載鎖定室3裝載有基板晶圓4及作為基座的環5，其中在裝載過程中出現圖5中以橫截面示出的佈置。首先，裝載鎖定室3的上固持夾具12被帶到固持位置，並且隨後或同時，位於搬運工具11上的基板晶圓4移動到上固持夾具12上方的放置位置中，方式為帶有基板晶圓4的搬運工具11穿過進出槽9進入裝載鎖定室3到遠至放置位置。隨後，憑藉於將搬運工具11降低到上固持夾具12的水平高度下方，將基板晶圓4放置在上固持夾具12上。一旦基板晶圓4位於上固持夾具12上，搬運工具11穿過進出槽9從裝載鎖定室3撤出。外升降元件16是可旋轉的，並且每個外升降元件都具有頭部17，頭部17成角度以形成鉤、並且頭部可藉由外升降元件16的樞轉而在切向位置及徑向位置之間變化。成角度的頭部17的端部藉由銷狀升高部18向上延長。沿頭部17的徑向位置，升高部18位於比鄰接升高部18的頭部17的深部區域22更向內的位置。升高部18用於升高及降低基板晶圓4，而鄰接的頭部17的深部區域22用於升高及降低作為基座的環5。
環5位於其上的傳送工具7穿過進出槽9移動到裝載鎖定室3中一位置中，在該位置中，環5同心地位於基板晶圓4下方。然後，外升降元件16被升高，並且每個外升降元件16的頭部17從切向位置樞轉到徑向位置中。然後，外升降元件16進一步升高，直到基板晶圓4已經從上固持夾具12舉高，並且稍後，環5已經從傳送工具7舉高，其中外升降元件16的頭部17以頭部17的相應的深部區域22將環5升高以及以頭部17的相應的升高部18將基板晶圓4升高。上固持夾具12隨後被撤回到釋放位置中。圖5示出了然後在橫截面中達到的佈置。
然後，外升降元件16下降，並且在其下降過程中，環5被放回到傳送工具7上，並且基板晶圓4以其後側的邊緣區域被放置在環5的放置區23上。然後，外升降元件16的頭部17樞轉回到切向位置中，並且外升降元件16被降低到閒置位置中，在閒置位置中，頭部17進入冷卻塊14中。傳送工具7與環5以及位於環5上的基板晶圓4一起穿過裝載鎖定室3的進出槽9從裝載鎖定室3被運送到沉積室2中。傳送工具7不與基板晶圓4直接接觸。
在沉積室2中，環5被帶到一位置，從該位置環可以藉由升降銷21升高。在圖4中所示的示例性實施例中，環5由傳送工具7固持在底座20上方，底座與環5一起形成二部件式基座。環5相對於底座20同心地佈置。引導穿過底座20的升降銷21從閒置位置垂直地升高，直到升降銷將環5及位於環上的基板晶圓4從傳送工具7舉高。升降銷21從下面接觸環5並且被建構成不能與基板晶圓4接觸。圖4以透視圖示出了該佈置。
接下來，傳送工具7從沉積室2撤出，並且升降銷21被降低直到環5位於底座20上。之後，磊晶層被沉積在基板晶圓4的前側上。升降銷21然後再次升高。升降銷接觸環5的下側並將環5以及位於環上的具有磊晶層的半導體晶圓從底座20舉高。帶有放置的具有磊晶層的半導體晶圓的環5的移動相對於帶有放置的基板晶圓4的環5的先前移動以鏡像相反的方式進行。
環5被升高，且傳送工具7被帶回到沉積室2中並且佈置在環5下方相對於環5的同心位置中。升降銷21被移動回到其閒置位置，並且在該過程中將環5及位於環5上的具有磊晶層的半導體晶圓放置在傳送工具7上。在基板晶圓上沉積磊晶層的期間，將裝載鎖定室3裝載待塗覆的另一基板晶圓4。
傳送工具7將環5帶著位於其上的具有磊晶層的半導體晶圓1運送到裝載鎖定室3中，具體地傳送到下固持夾具13下方的垂直位置，並且同心地相對於準備的待塗覆的基板晶圓4。然後內升降銷15被升高直到它們接觸具有磊晶層的半導體晶圓1的後側，並將半導體晶圓舉高離開環5。之後，下固持夾具13從釋放位置移位至固持位置，並且內升降銷15移動回到內升降銷的初始位置。在此過程中，具有磊晶層的半導體晶圓1被放置在下固持夾具13上。接下來，傳送工具7與放置在其上的環5一起被移出裝載鎖定室3。內升降銷15然後再次升高，直到它們從下固持夾具13舉高具有磊晶層的半導體晶圓1。圖6以透視圖示出了所得到的佈置，其中為了簡化的原因省略了準備的待塗覆的基板晶圓。然後，下固持夾具13返回至釋放位置，並且內升降銷15再次降回到其初始位置，由此具有磊晶層的半導體晶圓1被放置在冷卻塊14上。
在冷卻之後，內升降銷15還用於將具有磊晶層的半導體晶圓1從冷卻塊14舉高並且將具有磊晶層的半導體晶圓1轉移到搬運工具11，因此以便隨後將具有磊晶層的半導體晶圓1運送到傳送容器中。
示例性實施例的上述描述應當被理解當做實例。因此，本發明首先使得本領域技術人員能夠理解本發明及其相關優點，並且其次，在本領域技術人員的理解範圍內，還包括所描述的結構及方法的明顯改變及修改。因此，所有這樣的改變及修改及均等物均在請求項的保護範圍內。
1‧‧‧具有磊晶層的半導體晶圓
2‧‧‧沉積室
3‧‧‧裝載鎖定室
4‧‧‧基板晶圓
5‧‧‧環
7‧‧‧傳送工具
8‧‧‧端部執行器
9‧‧‧進出槽
10‧‧‧機器人
11‧‧‧搬運工具
12‧‧‧上固持夾具
13‧‧‧下固持夾具
14‧‧‧冷卻塊
15‧‧‧內升降銷
16‧‧‧外升降元件
17‧‧‧頭部
18‧‧‧升高部
19‧‧‧支撐裝置
20‧‧‧底座
21‧‧‧升降銷
22‧‧‧頭部的深部區域
23‧‧‧放置區
圖1示出了根據本發明的用於製造具有磊晶層的半導體晶圓的設備。 圖2示出了具有根據本發明的特徵的裝載鎖定室。 圖3示出了裝載鎖定室的俯視圖。 圖4示出了與本發明相關的沉積室的特徵。 圖5示出了在具有基板晶圓的情況下的裝載鎖定室的橫截面。 圖6示出了在具有帶磊晶層的半導體晶圓的情況下的裝載鎖定室的透視圖。 圖7示出了具有磊晶層的半導體晶圓的後側上的銷痕缺陷。 圖8示出了由根據伯努利原理操作的升降銷工具造成的具有磊晶層的半導體晶圓的邊緣處的損壞。

Claims (6)

  1. 一種用於在沉積室中製造一具有磊晶層的半導體晶圓的方法，該方法包含下列步驟：在裝載鎖定室中將基板晶圓以該基板晶圓的後側的邊緣區域放置到基座的放置區上；藉由接觸該基座並且將該基座及位於該基座上的基板晶圓從該裝載鎖定室傳送到該沉積室中，使該沉積室裝載該基座及位於該基座上的基板晶圓；在該基板晶圓上沉積一磊晶層；藉由接觸該基座並且將該基座及具有磊晶層的半導體晶圓從該沉積室傳送到該裝載鎖定室中，以卸載該沉積室，其中，從該沉積室傳送到該裝載鎖定室期間，該具有磊晶層的半導體晶圓在沉積該磊晶層的過程中已經被製造並且位於該基座上；以及在裝載鎖定室中分離該基座與該具有磊晶層的半導體晶圓。
  2. 如請求項1所述的方法，該方法包含在具有磊晶層的該半導體晶圓的溫度不小於650℃的時間點將該沉積室卸載。
  3. 如請求項1或2所述的方法，該方法包含在將該磊晶層沉積在該基板晶圓上的過程期間，在該裝載鎖定室中提供另一基板晶圓用於將該另一基板晶圓傳送到該沉積室中。
  4. 一種用於製造具有磊晶層的半導體晶圓的設備，其包含：沉積室；裝載鎖定室；基座，其具有用於以該基板晶圓的後側的邊緣區域放置基板晶圓的放置區；在該裝載鎖定室中的升降元件，其用於從下方接觸該基座的方式以升高及降低該基座以及位於該基座上的基板晶圓或具有磊晶層的半導體晶圓；接觸該基座的傳送工具，其用於將該基座及位於該基座上的基板晶圓從該裝載鎖定室傳送到該沉積室中，並用於將該基座及位於該基座上的具有磊晶層的半導體晶圓從該沉積室傳送到該裝載鎖定室中；以及升降銷，其用於從該裝載鎖定室中的基座升高該具有磊晶層的半導體晶圓。
  5. 如請求項4所述的設備，更包含上固持夾具及下固持夾具，該上固持夾具及下固持夾具在該裝載鎖定室中用於固持該基板晶圓及具有磊晶層的該半導體晶圓。
  6. 如請求項4或5所述的設備，其中該基座係二部件式基座，該二部件式基座由環及底座構成，該環包含該放置區，且該底座被設置在該沉積室中。
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