TW202044478A - 載置台及基板處理裝置 - Google Patents

載置台及基板處理裝置 Download PDF

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TW202044478A
TW202044478A TW109101642A TW109101642A TW202044478A TW 202044478 A TW202044478 A TW 202044478A TW 109101642 A TW109101642 A TW 109101642A TW 109101642 A TW109101642 A TW 109101642A TW 202044478 A TW202044478 A TW 202044478A
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flow path
mounting table
temperature
insulation layer
heat insulation
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斎藤道茂
金子彰太
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日商東京威力科創股份有限公司
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Abstract

本發明旨在抑制密封構件的密封性能下降。 本發明提供一種載置台,用以載置基板,並具有基台;該基台具有:供第1溫度的熱媒體流動之第1流路、配置於該第1流路的下部之第1隔熱層、與配置於該第1隔熱層的下部之密封構件。

Description

載置台及基板處理裝置
本發明係關於一種載置台及基板處理裝置。
基板處理裝置,具有於處理容器內載置基板之載置台。和載置台的底面即載置台的下部所配置之構件之間設有O型環,將處理容器內的真空空間密封不受載置台下的大氣空間影響,以維持處理容器內的真空狀態。
例如,專利文獻1揭示,於處理容器內的載置台,設置對基板靜電吸附之靜電吸盤,和靜電吸盤的底面即靜電吸盤的下部所配置之基材之間設有O型環。 [習知技術文獻] [專利文獻]
專利文獻1:日本特開2018-107433號公報
[發明所欲解決之問題]
本發明提供一種技術,可抑制密封構件的密封性能下降。 [解決問題之技術手段]
根據本揭示案的一態樣,提供一種載置台,載置基板,並具有基台;該基台具有:供第1溫度的熱媒體流動之第1流路、配置於該第1流路的下部之第1隔熱層、與配置於該第1隔熱層的下部之密封構件。 [發明之功效]
根據一面向,可抑制密封構件的密封性能下降。
以下,參照圖式針對本發明的實施方式進行說明。各圖式中,會對同一構成部分賦予同一符號,以省略重複之說明。
[基板處理裝置] 圖1,係顯示一實施形態相關基板處理裝置1的概略構成之剖面圖。基板處理裝置1,係RIE(Reactive Ion Etching,反應性離子蝕刻)型的基板處理裝置。不過,基板處理裝置1,得適用於電漿蝕刻裝置,電漿CVD裝置等。
基板處理裝置1,具有金屬製,例如鋁或是不鏽鋼製的圓筒型處理容器10,處理容器10的內部,當作進行電漿蝕刻或電漿CVD等的電漿處理之處理室。處理容器10接地。
處理容器10的內部,設有載置晶圓W之圓板狀載置台100。載置台100,具有靜電吸盤25及基台26。靜電吸盤25,配置於基台26之上。基台26,由例如鋁或是鈦合金所組成,透過絕緣性的筒狀保持構件12,由從處理容器10的底部往垂直上方延伸之筒狀支持部13所支持。
靜電吸盤25的中央部,係將導電膜所組成之吸附電極25c夾入介電膜25a之間所構成。吸附電極25c經由開關28來和直流電源29電性連接。靜電吸盤25,係藉由直流電源29對吸附電極25c施加之電壓所產生的靜電吸附力,讓晶圓W保持於靜電吸盤25。
靜電吸盤25,由載置晶圓W之圓板狀中央部、與環狀周緣部所組成,中央部的高度比周緣部的高度更高。周緣部的上面,載置有環狀包圍基板周緣之邊緣環27。又,邊緣環27也稱為對焦環。
處理容器10的側壁與狀支持部13之間有排氣路14形成。排氣路14的入口或是途中設有環狀的緩衝板15。排氣路14的底部設有排氣口16。排氣口16,係經由排氣管17來和排氣裝置18連接。排氣裝置18,具有真空泵,將處理容器10內的處理空間減壓至既定的真空度。另外,排氣管17設有可變式蝴蝶閥即自動壓力控制閥(automatic pressure control valve)(無圖示),藉由自動壓力控制閥進行處理容器10內的壓力控制。處理容器10的側壁,裝有令晶圓W的送入出口19開閉之閘閥20。
基板處理裝置1,具有第1高頻電源21及第2高頻電源22。第1高頻電源21,係產生第1高頻電力之電源。第1高頻電力,具有適合電漿產生之頻率。第1高頻電力的頻率,係例如27MHz~100MHz的範圍內的頻率。第1高頻電源21,經由匹配器21a來和載置台100連接。匹配器21a,具有令第1高頻電源21的輸出電阻與負載側(載置台100側)的電阻匹配之電路。
第2高頻電源22,係產生第2高頻電力之電源。第2高頻電力,具有比第1高頻電力的頻率更低之頻率。第1高頻電力與第2高頻電力一起使用的情況下,第2高頻電力係作為用以將離子導入晶圓W的偏壓用的高頻電力使用。第2高頻電力的頻率,係例如400kHz~13.56MHz的範圍內的頻率。第2高頻電源22,經由匹配器22a來和載置台100連接。匹配器22a,具有令第2高頻電源22的輸出電阻與負載側(載置台100側)的電阻匹配之電路。
又,不使用第1高頻電力,而是使用第2高頻電力,亦即只使用單一的高頻電力來產生電漿亦可。在此情況下,第2高頻電力的頻率,為比13.56MHz更大之頻率,例如40MHz亦可。基板處理裝置1,不具有第1高頻電源21及匹配器21a亦可。在此情況下,第2高頻電源22構成了一例的電漿產生部。
於載置台100對面之處理容器10的頂棚部配設有噴頭40。藉此,來自第1高頻電源21的高頻電力施加於載置台100與噴頭40之間。
藉由這種構成,載置台100也作為下部電極發揮功能,噴頭40也作為接地電位的上部電極發揮功能。又,第1高頻電源21,經由匹配器21a來和噴頭40連接亦可。
基台26,於上段及下段設有第1流路101及第2流路102。第1流路101,從冷卻單元200經由配管202、212、213、203得到第1溫度的熱媒體之流動,循環。第2流路102,從冷卻單元200經由配管201、211、214、204得到第2溫度的熱媒體之流動,循環。流經第2流路102之熱媒體的第2溫度,比流經第1流路101之熱媒體的第1溫度更高。
第1流路101,係相對於晶圓載置面往圓周方向延伸之漩渦狀或是同心圓狀的流路。第1流路101,係相對於靜電吸盤25的晶圓載置面,整體性設置,其最外周的流路,形成於晶圓W最外周之更外側。藉此,可提高晶圓W的溫度控制性,以謀求晶圓W的溫度分布的面內均一性。
第1流路101的下部,配置有第1隔熱層111。第1隔熱層111的下部,配置有第2流路102。第2流路102的下部,配置有第2隔熱層112。第2流路102,係相對於晶圓載置面往圓周方向延伸之漩渦狀或是同心圓狀的流路。第2流路102,具有與第1流路101相同之形狀亦可,具有不同形狀亦可。第2流路102,係相對於靜電吸盤25的晶圓載置面,整體性設置,其最外周的流路,形成於晶圓W最外周之更外側。藉此,可提高基台26的第1隔熱層111更下部之基台26的溫度控制性。
傳熱氣體供給部30,經由氣體供給管線31對晶圓W的背面的靜電吸盤25之間供給傳熱氣體。作為傳熱氣體,適合使用具有熱傳導性之氣體,例如He氣體等。
O型環301,配置於基台26的底面與筒狀保持構件12的上面之間。O型環302,配置於基台26的底面與氣體供給管線31的接合部32之間。
頂棚部的噴頭40,具有下面的電極板45、與以可裝卸方式支持電極板45之電極支持體41。電極板45,具有多數的氣體通氣孔46。電極支持體41的內部設有緩衝室44;和緩衝室44相連之氣體導入口42係和氣體供給配管43連接;氣體供給配管43係和處理氣體供給部47連接。
基板處理裝置1的各構成要素,係和控制部50連接。控制部50,控制基板處理裝置1的各構成要素。作為各構成要素,可舉出例如排氣裝置18、第1高頻電源21、第2高頻電源22、開關28、直流電源29、傳熱氣體供給部30、處理氣體供給部47及冷卻單元200等。
控制部50,具備CPU51及記憶體52(記錄裝置),將記憶體52所記錄之程式及處理處方讀取並執行,進而在基板處理裝置1控制所需的基板處理。另外,控制部50,進行冷卻單元200所供給之熱媒體的溫度控制、排氣裝置18的控制等。
處理容器10的周圍,配置有環狀或是同心圓狀延伸之磁石48;基板處理裝置1的處理容器10內,藉由磁石48形成了朝向一方向之水平磁場。另外,藉由施加於載置台100與噴頭40之間的高頻電力,形成了鉛直方向的RF電場。藉此,處理容器10內透過處理氣體進行磁控放電,於載置台100的表面附近,自處理氣體產生高密度的電漿。
基板處理裝置1中,於基板處理之際,首先令閘閥20為開狀態,將加工對象的晶圓W送入處理容器10內,載置於靜電吸盤25之上。令冷卻單元200所供給之第1溫度及第2溫度的熱媒體分別往第1流路101及第2流路102供給。再藉由處理氣體供給部47將處理氣體以既定的流量及流量比導入處理容器10內,藉由排氣裝置18等使處理容器10內的壓力為既定值。更藉由第1高頻電源21及第2高頻電源22將高頻電力往載置台100供給,藉由直流電源29將電壓往吸附電極25c施加,使晶圓W吸附於靜電吸盤25上。另外,將傳熱氣體往晶圓W的背面供給。再使噴頭40所噴吐出之處理氣體電漿化,藉由電漿中的自由基或離子,對晶圓W的表面進行既定的電漿處理。
[載置台] 接下來,針對一實施形態相關載置台100的詳細構成,參照圖2並說明之。圖2,係將圖1的載置台100主要是基台26放大顯示之剖面示意圖。本圖中,顯示載置台100的構成當中主要是基台26的內部及基台26的底面所配置之O型環301、302,省略了靜電吸盤25、邊緣環27及晶圓W。又,載置台100,沒有靜電吸盤25亦可。沒有靜電吸盤25的情況下,基台26的上部成為晶圓W的載置面。
基台26,具有供第1溫度的熱媒體流動之第1流路101、與配置於第1流路101的下部之第1隔熱層111。再者,基台26,具有配置於第1隔熱層111的下部、供第2溫度的熱媒體流動之第2流路102、與配置於第2流路102的下部之第2隔熱層112。於基台26的底面即第2隔熱層112的下部,在和基台26的底面接觸之構件(筒狀保持構件12、氣體供給管線31的接合部32)之間配置了O型環301、302。
第1流路101,供第1溫度的熱媒體循環,使晶圓冷卻。流經第1流路101之熱媒體得為氟化液等的液體、液態氮或是既定的氣體。第1溫度,受控制在-100°以下的溫度(以下,也稱為「極低溫」。)。藉此,將載置台100的晶圓載置面局部性以極低溫區域的溫度冷卻。
第1流路101,為了改良熱交換率,而具有和熱媒體接觸的表面積較大之鰭片構造,為較佳者。圖2的例中,第1流路101設有具有多根柱子之鰭片構造101a。鰭片構造101a的多根柱子,從第1流路101之上往下方,以柱子的高度不同之方式所形成。藉此,可改良熱交換率,使第1流路101的上部所載置之晶圓W冷卻至極低溫。
第1流路101所設之構造,具有格子構造,具有凹部及/或凸部之凹凸構造,來取代鰭片構造亦可。不過,只要能確保第1流路101的機械強度,第1流路101,不具有鰭片構造或是格子構造亦可。
第1隔熱層111,具有在第1流路101的下部及側部包圍第1流路101之方式所形成的第1中空空間111a、111b。如圖1所示,第1中空空間111a、111b,藉由金屬配管130來和排氣裝置18連接,藉由排氣裝置18抽真空,受控制在真空狀態。藉此,可藉由真空隔熱效果將流經第1流路101之熱媒體的熱隔絕,使其不往第1隔熱層111的下部傳遞。
不過,並不限於此,第1中空空間111a、111b,受控制在比大氣壓更低之壓力亦可。藉此也可得到隔熱效果。在得到既定的隔熱效果的情況下,第1隔熱層111,亦可第1中空空間111a不設於第1流路101的下部,第1中空空間111b不設於側部。
藉由這種構成,藉由第1隔熱層111,將基台26內的設有第1流路101之區域,和第1隔熱層111的下部區域隔離,隔熱。藉此,可將晶圓W冷卻至極低溫,並且可抑制因第1隔熱層111的真空隔熱效果使第1隔熱層111下部區域冷卻至極低溫之情況。
又,圖2雖未圖示出,但第1隔熱層111的第1中空空間111a、111b,為了提高機械強度而具有鰭片構造或是格子構造亦可。不過,讓第1中空空間111a、111b確保盡量寬闊之空間,進而減少熱傳導來提高真空隔熱效果,是很重要的。因此,第1隔熱層111的鰭片構造或是格子構造,從機械強度與內部空間的確保這兩點來看,即使沒有該構造,在確保了機械強度的情況下,不設置亦可。
在隔著第1隔熱層111之第1流路101的相反側設有第2流路102。第2流路102,供例如0℃或是更高的溫度即第2溫度的熱媒體循環。藉此,相對於流經第1流路101之例如-100℃的熱媒體的冷卻,可抑制隔著第1隔熱層111之第1流路101的相反側區域冷卻至極低溫之情況。
往第2流路102流動之熱媒體,得為氟化液等的液體,或是既定的氣體。往第2流路102流動之熱媒體的種類,和流經第1流路101之熱媒體相同亦可,不同亦可。
第2流路102,為了改良熱交換率,具有和熱媒體接觸的表面積較大之鰭片構造亦可。例如,和第1流路101同樣地,第2流路102設有具有多根柱子之鰭片構造亦可。藉此,可改良熱交換率,藉由供趨近常溫之第2溫度的熱媒體流動之第2流路102,吸收基台26的熱,讓配置有第2流路102之基台26的區域的溫度上升。藉此,可有效抑制極低溫的熱媒體在第1流路101循環造成基台26全體的溫度下降之情況。
第2流路102所設之構造,具有格子構造,具有凹部及/或凸部之凹凸構造,來取代鰭片構造亦可。不過,只要能確保第2流路102的機械強度,第2流路102,不具有鰭片構造或是格子構造亦可。
第2隔熱層112,具有在第2流路102的下部及側部包圍第2流路102之方式所形成的第2中空空間112a、112b。如圖1所示,第2中空空間112a、112b,藉由金屬配管131來和排氣裝置18連接,藉由排氣裝置18抽真空,受控制在真空狀態。藉此,可藉由真空隔熱效果將流經第1流路101之熱媒體的熱更加隔絕,使其不往第2隔熱層112的下部傳遞。
不過,並不限於此,第2中空空間112a、112b,受控制在比大氣壓更低之壓力亦可。藉此也可得到隔熱效果。在得到既定的隔熱效果的情況下,第2隔熱層112,亦可第2中空空間112a不設於第2流路102的下部,第2中空空間112b不設於側部。
藉由這種構成,對第2流路102供給趨近常溫之溫度的熱媒體,吸收基台26的熱,藉由第2隔熱層112將基台26內的設有第1流路101之區域,和第2隔熱層112的下部區域更加隔離,隔熱。藉此,即使在晶圓W冷卻至極低溫之環境中,也可令第2隔熱層112的下部區域的溫度比玻璃轉換點更高,以防止O型環301、302的密封性能劣化。
具體說明,O型環301、302,由氟橡膠、矽氧橡膠等所形成。O型環301、302於極低溫使用時,密封性能變差。一般而言,物質冷卻,則流動性減少,以一定溫度(凝固點)為界,從液體變成固體。作為固體而安定之狀態,分成具有橡膠彈性之橡膠狀態,與以更低溫完全凍結之玻璃狀態。以玻璃轉換點的溫度為-60℃左右之矽氧橡膠,形成了O型環的情況下,在-60℃以下的溫度使用O型環時,O型環成為玻璃狀態,密封性能降低。結果,無法使真空空間U保持氣密不受大氣空間A影響,發生真空外洩。所以,要在可於玻璃轉換點的溫度以下發揮O型環的密封機能之狀態下,使用O型環係有其困難。
近年來,元件構造的細微化及高密度化持續發展,讓接觸孔等隨著往較高長寬比發展。我們也討論到以較高長寬比的蝕刻等將晶圓W的溫度下降至極低溫來進行蝕刻,在此情況下,O型環的密封性能的劣化,成為一大問題。
對此,這種構成的載置台100中,使例如-100℃以下的極低溫即第1溫度的熱媒體在第1流路101循環,進而可提升晶圓W的冷卻效率。另一方面,即使第1溫度比O型環301、302的玻璃轉換溫度更低,載置台100,也可藉由第1流路101的下部所設之第1隔熱層111及第2流路102的下部所設之第2隔熱層112進行真空隔熱。除此之外,載置台100,藉由對第1隔熱層111的下部所設之第2流路102使例如常溫等,比玻璃轉換點更高之第2溫度的熱媒體流動,便可吸收基台26的熱。
藉此,可抑制O型環301、302的密封面的溫度下降,令密封面的溫度為比玻璃轉換點更高之溫度。藉此,即使在以極低溫將晶圓W冷卻之構造中,O型環301、302的密封性能也不會劣化,可使用O型環301、302將處理容器10內的真空空間U密封免於基台26之下的大氣空間A影響。結果,可保持真空空間U的氣密。
更,因真空空間U與大氣空間A的差壓所造成之來自基台26的底面側的大氣壓的負載,分別由第1隔熱層111的及第2隔熱層112的中空空間所吸收,進而可抑制晶圓載置面的撓曲變形。
除了O型環301、302以外,於基台26的底面與通有推桿銷的管之接合部配置O型環亦可,於基台26的底面與其下部所配置的其他構件之間配置O型環亦可。在此情況下,O型環的密封性能不會降低,可藉由O型環保持真空空間U的氣密。
又,圖2雖未圖示出,但第2隔熱層112的第2中空空間112a、112b,為了提高機械強度而具有鰭片構造或是格子構造亦可。不過,讓第2中空空間112a、112b確保盡量寬闊之空間,進而減少熱傳導來提高真空隔熱效果,是很重要的。因此,第2隔熱層112的鰭片構造或是格子構造,從機械強度與內部空間的確保這兩點來看,即使沒有該構造,在確保了機械強度的情況下,不設置亦可。
另外,第2中空空間112a、112b,和第1中空空間111a、111b為相同形狀亦可,不同形狀亦可。另外,第2中空空間112a、112b,和第1中空空間111a、111b相連,成為同一空間亦可;和第1中空空間111a、111b為各別的空間亦可。
不過,為了提高隔熱效果,第1中空空間111a、111b及第2中空空間112a、112b都要進行減壓控制,所以令其為容易控制成真空空間之構造,為較佳者。
[變形例] 以可確保基台26的機械強度之形狀或尺寸形成了第1流路101、第1隔熱層111、第2流路102及第2隔熱層112的情況下,如同圖3的變形例相關載置台100,各構造都不設置鰭片構造及格子構造亦可。
另外,隔熱層的層數並不限於2層,為1層或是多層亦可,沒有亦可。另外,配置於第1流路101的下部之流路並不限於1條,為多條亦可,沒有亦可。
另外,配置於第1流路101的下部之第2流路102等的流路,分成低溫管線與常溫管線等的多條流路亦可,為1條管線的流路亦可。
使極低溫的熱媒體於第1流路101循環,也藉由第1隔熱層111,將O型環301、302的密封面控制在比玻璃轉換點更高之溫度的情況下,不設置第2流路102及第2隔熱層112亦可。在此情況下,O型環301、302,不透過第2流路102及第2隔熱層112,配置於第1隔熱層111的下部。
[製造方法] 接下來,針對一實施形態及變形例相關載置台100的製造方法進行說明。基台26,其內部形成有第1流路101、第1隔熱層111、第2流路102及第2隔熱層112,成為中空構造。
再者,一實施形態相關載置台100的基台26中,第1流路101內有鰭片構造101a形成。這種構成的基台26,以3D列印技術、積層製造(Additive Manufacturing)技術加以製造,為較佳者。具體而言,可使用利用金屬材料之積層造型技術。例如,可使用對粉末金屬照射雷射或電子束使其燒結進而造型之造型技術;供給粉末金屬或金屬絲,同時以雷射或電子束使材料熔融堆積進而造型之造型技術等。又,此等的造型方法僅為一例,並不限於此。另外,包含基台26之載置台100以3D列印技術、積層製造技術加以製造亦可。
本次所揭示之一實施形態及其變形例相關載置台及基板處理裝置,應視為在所有要點中僅為例示,並非有所限制。上述的實施形態,並未脫離所附的申請專利範圍及其主旨,能以各種形態進行變形及改良。上述複數的實施形態所記載之事項,在不互相矛盾之範圍內可採取其他構成,或是可在不互相矛盾之範圍內加以組合。
本發明的載置台,均可適用於Capacitively Coupled Plasma(CCP,電容耦合電漿)、Inductively Coupled Plasma(ICP,電感耦合電漿)、Radial Line Slot Antenna(輻射線槽孔天線)、Electron Cyclotron Resonance Plasma(ECR,電子迴旋共振電漿)、Helicon Wave Plasma(HWP,螺旋波電漿)、ALD(Atomic Layer Deposition,原子層沉積)裝置的任何類型的基板處理裝置。另外,作為基板處理裝置的一例,舉出電漿處理裝置進行了說明,但基板處理裝置,只要是對基板實施既定處理(例如,成膜處理、蝕刻處理等)之裝置即可,並不限於電漿處理裝置。例如,CVD裝置亦可。
1:基板處理裝置 10:處理容器 12:筒狀保持構件 13:筒狀支持部 14:排氣路 15:緩衝板 16:排氣口 17:排氣管 18:排氣裝置 19:送入出口 20:閘閥 21:第1高頻電源 21a:匹配器 22:第2高頻電源 22a:匹配器 25:靜電吸盤 25a:介電膜 25c:吸附電極 26:基台 27:邊緣環 28:開關 29:直流電源 30:傳熱氣體供給部 31:氣體供給管線 32:接合部 40:噴頭 41:電極支持體 42:氣體導入口 43:氣體供給配管 44:緩衝室 45:電極板 46:氣體通氣孔 47:處理氣體供給部 48:磁石 50:控制部 51:CPU 52:記憶體 100:載置台 101:第1流路 101a:鰭片構造 111:第1隔熱層 111a,111b:第1中空空間 102:第2流路 112:第2隔熱層 112a,112b:第2中空空間 130,131:金屬配管 200:冷卻單元 201,204,211,214:配管 202,203,212,213:配管 301,302:O型環 U:真空空間 A:大氣空間 W:晶圓
[圖1]係顯示一實施形態相關基板處理裝置的一例之剖面示意圖。 [圖2]係將一實施形態相關載置台放大之剖面示意圖。 [圖3]係將一實施形態的變形例相關載置台放大之剖面示意圖。
10:處理容器
12:筒狀保持構件
13:筒狀支持部
15:緩衝板
26:基台
31:氣體供給管線
32:接合部
100:載置台
101:第1流路
101a:鰭片構造
111:第1隔熱層
111a,111b:第1中空空間
102:第2流路
112:第2隔熱層
112a,112b:第2中空空間
301,302:O型環
U:真空空間
A:大氣空間

Claims (13)

  1. 一種載置台,用以載置基板,並包含基台; 該基台具有: 第1流路,供第1溫度的熱媒體流動; 第1隔熱層,配置於該第1流路的下部;及 密封構件,配置於該第1隔熱層的下部。
  2. 如請求項1的載置台,其中, 該第1隔熱層,具有第1中空空間; 該第1中空空間,受控制在比大氣壓更低之壓力。
  3. 如請求項2的載置台,其中, 該第1中空空間,具有鰭片構造或是格子構造。
  4. 如請求項1~3中任一項的載置台,其中, 該第1流路,具有鰭片構造或是格子構造。
  5. 如請求項1~4中任一項的載置台,其中,更包含: 第2流路,配置於該第1隔熱層下部,供第2溫度的熱媒體流動;及 第2隔熱層,配置於該第2流路的下部; 該密封構件,配置於該第2隔熱層的下部。
  6. 如請求項5的載置台,其中, 該第2隔熱層,具有第2中空空間; 該第2中空空間,受控制在比大氣壓更低之壓力。
  7. 如請求項6的載置台,其中, 該第2中空空間,具有鰭片構造或是格子構造。
  8. 如請求項5~7中任一項的載置台,其中, 該第2流路,具有鰭片構造或是格子構造。
  9. 如請求項5~8中任一項的載置台,其中, 該第2溫度,比該第1溫度更高。
  10. 如請求項5~9中任一項的載置台,其中, 該第2溫度,比該密封構件的玻璃轉換溫度更高。
  11. 如請求項1~9中任一項的載置台,其中, 該第1溫度,比該密封構件的玻璃轉換溫度更低。
  12. 如請求項1~11中任一項的載置台,其中, 該基台係以3D列印技術或是積層製造技術加以成形。
  13. 一種基板處理裝置,具備處理容器與載置台; 該載置台,配置於該處理容器內,用來載置基板,並包含基台; 該基台具有: 第1流路,供第1溫度的熱媒體流動; 第1隔熱層,配置於該第1流路的下部;及 密封構件,配置於該第1隔熱層的下部。
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