1379132 九、發明說明 【發明所屬之技術領域】 本發明係關於基板貼合系統，特別是謀求至貼合結束 爲止的時間要縮短，同時能夠以輸送裝置搬送貼合基板之 基板貼合系統》 【先前技術】 Φ 於液晶顯示面板之製造，有著使設有透明電極或薄膜 電晶體陣列之2枚玻璃基板具有數μιη程度之非常接近的 間隔’而以設在基板周緣部的黏接劑（以下也稱爲密封劑 )貼合（以後，將貼合後之基板稱爲「胞」（cell ))， 於藉其形成的空間密封液晶的工程。 於此液晶之密封，例如有將液晶滴下至以不設注入口 的方式把密封劑描繪成封閉圖案的一方基板上，於真空室 內使另一方之基板配置於一方基板上，使上下基板接近而 φ 貼合等方法。 爲了將基板搬入/搬出此真空室而設有預備室，使真 空室內成爲與預備室相同的雰圍而進行基板的搬進搬出之 技術已揭示於專利文獻1。 此外，爲了使材料從預備室搬進搬出能順利進行，要 在預備室內進行基板的遞送，而使搬送室內也成爲真空狀 態，由處理室將基板搬送至加載互鎖（load-lock)真空室 ' 的構成之真空處理裝置也已經揭示於專利文獻2。 ' [專利文獻1 ]日本專利特開2 0 0 1 - 3 0 5 5 6 3號公報 1379132 [專利文獻2]曰本專利特開平06 — 005687號公報 【發明內容】1379132 IX. The present invention relates to a substrate bonding system, and in particular, a substrate bonding system capable of shortening the time until the end of bonding and capable of transporting a bonded substrate by a transport device. Prior Art Φ In the manufacture of a liquid crystal display panel, there are two kinds of glass substrates provided with a transparent electrode or a thin film transistor array having a very close interval of several μ', and the adhesive is provided on the peripheral portion of the substrate (below) Also referred to as a sealant) (hereinafter, the bonded substrate is referred to as a "cell"), and the liquid crystal is sealed by the space formed therein. In the sealing of the liquid crystal, for example, the liquid crystal is dropped onto one of the substrates on which the sealant is drawn in a closed pattern so that the sealing agent is not provided, and the other substrate is placed on one of the substrates in the vacuum chamber, and the upper and lower substrates are brought close to each other. φ fit and other methods. A technique in which a substrate is carried in and out of the vacuum chamber to provide a preliminary chamber, and the substrate is moved and carried out in the same atmosphere as the preliminary chamber is disclosed in Patent Document 1. Further, in order to smoothly carry out the loading and unloading of the material from the preliminary chamber, the substrate is transported in the preparation chamber, and the transfer chamber is also in a vacuum state, and the substrate is transported to the load-lock vacuum chamber by the processing chamber. A vacuum processing apparatus of the constitution of ' has also been disclosed in Patent Document 2. [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei 2 0 0 1 - 3 0 5 5 6 3 1379132 [Patent Document 2] Japanese Patent Laid-Open No. Hei 06-005687
[發明所欲解決之課題J 在前述專利文獻1，其構成係基板搬進搬出時爲使預 備室與真空室內成爲相同雰圍，將貼合的2枚基板搬入一 方側之預備室內，結束2枚基板的貼合後由設於另一方的 預備室排出’所以裝置的配置很長而必須要有大的設置面 積。此外，必須要使分別之預備室及貼合室成爲真空狀態 ，所以必須配置相應的裝置，而且抽真空至真空狀態爲止 的時間很長要縮短生產節拍有其限度。 此外，如專利文獻2所述，於中央配置搬送機械臂（ robot hand)於其周圍配置加載互鎖（l〇ad-l〇ck)真空室 與複數之處理室，以進行基板的處理之配置構成也被提出 過，但是這樣的構成，伴隨著貼合基板的大型化處理室也 跟著變大，大的（設置）面積變成必要。此外，搬送機械 臂也必須是可以在真空狀態下工作的特殊構成。 [供解決課題之手段] 爲達成前述目的，在本發明採用將加載互鎖（load-l〇ck )真空室與脫氣室及基板貼合室配置爲直線狀，同時 於各室間設閘閥（gate-valve )，於脫氣室內設有蓄積複 數枚下基板之收容機構，於貼合室設有搬入貼合的上側基 板與搬出貼合後的製品之閘閥；以由加載互鎖真空室搬入 -5- 1379132 貼合的下側基板，搬入至脫氣室的順序將下基板以輸送裝 置搬送的方式搬送至貼合室之構成。 此外，構成爲設有從被配置爲約略直線狀的加載互鎖 真空室，對貼合室平行地搬送處理的基板及貼合後的製品 之直線狀的移動路徑，設有供作爲在移動路徑上保持而搬 送處理的基板及製品的搬送機械臂；其配置構成爲在移動 路徑的一方端部設置搬入及搬出處理的基板之周轉（ turnover )室，於另一方端部設置暫時保管完成的製品之 保管室。 [發明之效果] 根據本發明之基板貼合裝置，使加載互鎖真空室、脫 氣室、貼合室直線配置，使各室之基板搬送爲輸送裝置（ conveyor )搬送的方式構成，同時於脫氣室設有收容複數 枚滴下液晶的基板之收容機構而可以由輸送裝置送至收容 • 機構依序保管之，可以不使用特殊的真空機械臂，維修也 變得^單。 【實施方式】 以下，根據圖面說明本發明之基板貼合裝置之一實施 例。 於圖1顯示本發明之基板貼合裝置之全體配置之平面 ' 圖。如圖1所示設有暫時保管在前一工程被施以處理的基 板之周轉室2、及由周轉室移動被配置爲直線狀的搬送機 -6- 1379132 械臂4之用的搬送路徑3。以供沿此搬送路徑3搬入 板之用的加載互鎖真空室5爲中心，於左右分別中介 閥G2〜G5設有脫氣室6、貼合室7，以分別的空間 減壓的方式構成真空裝置。此外，於加載互鎖真空室 合室7在對向於搬送路徑3的方向也設有閘閥G1、 G6。進而，加載互鎖真空室、脫氣室6、貼合室7也 設有供搬送下基板之用的輸送裝置5C、6C、7C。此 裝置，在本實施例使用輥輸送裝置，但亦可使用皮帶 送裝置。在與搬送路徑3之周轉室相反側之端部設.有 保管貼合完畢的面板9之面板保管室8。保管於保管 時面板被收容保管於卡匣（收容棚架）。特定枚數的 被收容於卡匣時，各個卡匣被搬送至次一工程。 於周轉室2，上方形成彩色濾光片之彩色濾光片 (以後稱爲CF基板或者上基板）la、及被形成TFT 合之用的密封劑被塗成環狀，在以密封劑圍住的區域 晶劑被滴下最佳量之基板（以後稱爲TFT基板或下基 lb被搬入周轉室2。此時，以CF基板la之貼合面朝 TFT基板lb其使液晶滴下之面（貼合面）朝上的方 搬入。因此，CF基板U係以貼合面朝下的方式被旋 保管。 於圖2顯示加載互鎖真空室之剖面圖。 被搬入周轉室2的基板之中TFT基板lb被保持 送機械臂4的手部而被搬送入加載互鎖真空室5。於 互鎖真空室5設有供在脫氣室6搬送TFT基板lb之 下基 著閘 可以 與貼 G5 ' 分別 輸送 式輸 暫時 室 8 面板 基板 供貼 內液 板） 上， 式被 轉而 於搬 加載 輸送 1379132 . 裝置5C。 此外，設有由搬送機械臂4之手部接收TFT基板lb ，遞送至輸送裝置5C上之用的收取栓11。此收取栓11， 通常被收容於輸送裝置5C的下部，收取TFT基板lb時 使驅動裝置5M動作而使收取栓1，1上升而由搬送機械臂 4之手部收取TFT基板lb。成爲將TFT基板lb遞送至收 取栓11後，使搬送機械臂之手部退避至閘閥G1之外，同 φ 時使收取栓爪11收容於輸送裝置5C之下部，而在輸送裝 置5C上遞送TFT基板lb的構成。於輸送裝置5C上收取 TFT基板lb後，關閉閘閥G1但開放閘閥5B1，藉由已經 驅動的真空泵5P1減壓加載互鎖真空室5內。此時，開放 閥5B1〜5B3。接著在成爲特定的減壓力的時間點關閉閥 5B1，開放閥5B2、5B3，藉由已經驅動的真空泵5P2繼續 減壓。成爲特定的減壓狀態時打開閘閥G2，輸送裝置5C 被驅動而TFT基板lb被搬送進脫氣室6。 • 於圖3顯示脫氣室之剖面圖。 於脫氣室6，設有具備以複數枚TFT基板lb可隔著 間隔收容的方式多段地（在本實施例爲最大5枚）保持基 板的基板保持部（基板承接部）30a之收容機構30。又， 脫氣室6內在裝置運作中總是被保持於特定的減壓狀態（ 真空狀態）。收容機構30具備複數段之基板保持部30a 與由馬達所構成之驅動手段3 0M。 ' 此收容機構之詳細顯示於圖4。 圖4之（a)係由上方所見之輸送裝置部，（b)係A_ -8- 1379132 A剖面圖。如圖4a所示構成爲收容機構30的基板保持部 3 0a位於輸送裝置6C之間，藉由使收容機構30上升可以 藉基板保持部30a保持TFT基板。亦即，基板保持部30a 係與輸送裝置6C約略相同地僅往內側突出設置，被構成 爲可以由輸送裝置更確實地接收基板。 TFT基板lb通過輸送裝置6C上搬送過來後，首先藉 由位置對準機構以使TFT基板lb的水平方向之位置載於 基板保持部30a的方式進行位置對準。此位置對準機構， 如圖3所示，係具備供對準TFT基板lb的進行方向之位 置之藉由汽缸13D上下驅動的基板止擋（stopper ) 13、及 由汽缸與馬達所構成的驅動手段；具備以汽缸上下移動， 藉由馬達而旋轉的旋轉凸輪（cam) 14、同樣由汽缸與馬 達構成的驅動手段15D:以及供對準左右方向的位置之旋 轉凸輪15所構成。位置對準結束之後使收容機構30上升 ，使TFT基板lb收受於基板保持部3 Oa。於基板保持部 30a收取TFT基板lb後，使讓輸送裝置6C退避至左右的 驅動手段30M而使收容機構30上升，收容的TFT基板的 位置成爲比輸送裝置6C更上方，而構成收容機構30的次 —段的基板保持部30a成爲在不接觸輸送裝置的下方位置 。其後使輸送裝置6C回到通常的搬送位置。如此般依序 使TFT基板積聚於收容機構30。 以上之構成係使輸送裝置退避至外側而收取基板的方 式，但亦可以採用使收容機構30在輸送裝置6C的外側設 置複數之柱部（4處所以上），使基板保持部3 0a由柱部 1379132 . 往輸送裝置6C側延伸而接收保持基板的方式構成。但是 在此場合有必要使基板保持部30a形成爲很長，有必要以 在保持基板時不發生撓曲的方式適當地選擇形成基板保持 部的材料等。 於此收容機構30收容複數枚TFT基板後，關閉閘閥 G2、G3等待特定時間，以取除預先被滴下至TFT基板上 的液晶劑等所含的氣泡。 φ 於圖5顯示基板貼合裝置之剖面圖。 預先開放閘閥G6將CF基板（上基板）la使貼合於 搬送機械臂4之手部之面朝下地搬入貼合室7。因爲對設 於上工作台（table)的吸附孔供給負壓而開放閥7B1，藉 由預先驅動的真空泵7TP，使藉由抽吸吸附而貼合於上工 作台7UT之面朝下地保持被搬入的CD基板la。又，在本 圖雖未圖示，但在上工作台7UT側設置可上下移動的附有 抽吸孔之吸附墊的場合，使吸附墊下降至CF基板面，以 φ 吸附墊保持CF基板後，藉由舉高至上工作台7UT面，可 以進行吸附保持。此外，於上工作台7UT以可以在真空狀 態保持CF基板la的方式設置靜電吸附手段或黏接保持手 段。以抽吸吸附使CF基板la保持於上工作台7UT後， 使靜電吸附手段動作，或者以抽吸吸附手段吸附至工作台 面以使黏接保持手段作用成爲即使貼合室內爲真空狀態也 可以保持基板。 * 結束CF基板la之保持後，下工作台7DT上如果存 在貼合完畢的面板9的場合，以搬送機械臂之手部保持面 -10- 1379132 板9而搬送至貼合室7之外。其後關閉閘閥G6，開放閥 7B2藉由預先驅動的真空泵7P1使貼合室7內成爲特定的 真空狀態。其後’關閉閥7B2，開放閥7B3、7B4藉由預 先驅動的真空泵7P2進一步減壓。貼合室7內成爲特定的 真空狀態後打開閘閥G3由真空狀態的脫氣室6將1枚 TFT基板lb以輸送裝置7搬送至同爲真空狀態之貼合室7 的下工作台位置。於貼合室被載於輸送裝置7C上，被搬 送來的TFT基板lb停止於下工作台7DT之載置位置。輸 送裝置7C停止時使下工作台7DT或設在下工作台7DT側 之承接爪移動至上側由輸送裝置上接取TFT基板。於下工 作台7DT接取TFT基板lb後，以TFT基板lb不移動的 方式，以靜電吸盤、或者黏接機構保持。之後，使下工作 台7DT移動於水平方向與保持在上工作台7UT的CF基板 la進行位置對準。TFT基板lb與CF基板la分別設有位 置對準用之標記，以未圖示之攝影機觀測此標記，求出位 置偏移量。其係在求出位置偏移量後，使用配置於貼合室 (貼合用真空裝置）之外的位置對準機構移動下工作台而 進行位置對準之構成。 以上分別說明裝置的構成與其動作，接著說明全體動 作。 其次，說明本系統之全體動作。此處，將CF基板稱 爲上基板la，將TFT基板稱爲下基板lb而進行說明。 首先，被搬入至周轉室2，反轉有翻轉必要的上基板 la而保管。此外沒有翻轉必要的下基板lb保持於原來狀 -11 - 1379132 態而保管。其次’使搬送機械臂4動作，保持1枚下基板 lb移動至加載互鎖（load-lock)真空室5。打開加載互鎖 真空室5的入口側之閘閥G1，將1枚下基板lb遞送至加 載互鎖真空室5的輸送裝置5C (遞送的詳細內容已於稍 早說明過，此處省略說明）。於輸送裝置5C結束下基板 lb之遞送後關閉閘閥G1。又，此時加載互鎖真空室5之 其他的閘閥G2、G4係保持關閉。其次，使加載互鎖真空 φ 室5內減壓至特定的減壓狀態爲止。結束減壓之後，打開 閘閥G2以使下基板lb移動至脫氣室6側的方式驅動輸送 裝置5C及6C。下基板lb移動至脫氣室6後使收容機構 30動作，通過輸送裝置6C上被搬送來的下基板lb載置 於收容機構3G之基板保持部30a而保管。 下基板la被搬入脫氣室6後關閉閘閥G2。閘閥G2 關閉時使加載互鎖真空室5回到大氣壓後，開放閘閥gi 。搬送機械臂4回到周轉室，與先前同樣保持丨枚TFT基 φ 板（下基板1)，移動至加載互鎖真空室5之前，使下基 板遞送至加載互鎖真空室5之輸送裝置5C上。輸送裝置 5C上結束下基板lb之遞送後，使搬送機械臂4之手部退 避至閘閥G 1之外。 手部退避後，搬送機械臂4回到周轉室2與先前同樣 保持1枚TFT基板lb，移動至加載互鎖真空室5之前。 其次’關閉閘閥G1，減壓加載互鎖真空室5內。成 爲特定的減壓狀態後’與先前同樣打堯閘閥G2在脫氣室 6的收容機構30之空著的棚架收容下基板ib。下基板la -12- 1379132 完全被搬入脫氣室6後關閉閘閥G2。同樣地由加載互鎖 真空室5往脫氣室6依序搬入下基板lb在收容機構30蓄 積第4枚下基板時，搬送機械臂由周轉室取出上基板ia 與下基板lb。接著，於加載互鎖真空室5以保持兩基板的 狀態等待。 第4枚下基板lb被搬入脫氣室6後關閉閘閥G2，打 開加載互鎖真空室5之基板搬入用的閘閥G1，下基板lb 被遞送至輸送裝置5C。 下基板lb之遞送結束後手部退避至加載互鎖真空室5 之外，搬送機械臂移動至貼合室7側。 此時，同時第5枚下基板lb被保持於收容機構30， 其訊號被傳達至貼合室7側之控制手段。貼合室7之搬入 側的閘閥G6開放，被保持於搬送機械臂4的手部之上基 板la被抽吸吸附於設在貼合室7內的上工作台7UT (對 上工作台7UT之保持手續已於先前敘述此處省略說明）。 上基板往上工作台7UT遞送後，使搬送機械臂之手部 退避至貼合室7之外，關閉閘閥G6。 其次’開始貼合室7內的減壓。室內成爲特定的減壓 壓力而且脫氣室6被搬入第5枚下基板後確認經過了特定 時間後，由貼合室7的控制手段對脫氣室6的控制手段指 示閘閥G3之開放命令。脫氣室6之控制手段開放閘閥G3 同時使1枚下基板（最初收容於收容機構的下基板）由收 容機構2〇載於輸送裝置6C而驅動輸送裝置把下基板lb 搬出至貼合室7。同時驅動貼合室7之輸送裝置7C由輸 -13- 1379132 送裝置6C收取下基板lb，下基板來到下工作台7DT的載 置位置時停止輸送裝置7C，載置於下工作台7DT上以不 動的方式保持。下基板lb之保持也與上基板la同樣使用 靜電吸附手段，或黏接手段來保持。 將下基板lb保持於下工作台後，關閉閘閥G3、G8 同時進行上基板與下基板之位置對準。 位置對準，使用未圖示之攝影機，觀測設於各基板之 位置對準標記，求出位置偏移量，使用在貼合室的外側具 備驅動源之橫壓機構使下工作台移動於水平方向進行位置 對準。 結束位置對準後，使貼合室內減壓至特定的壓力。其 後，使上工作台降下至下工作台側進行貼合。於此貼合進 行中進行數次位置對準。 結束貼合之後，開放閘閥G6。搬送機械臂，預先由 周轉室保持下一枚上基板la在閘閥G6之前等待著，將此 上基板la遞送至上工作台7UT。結束上基板la的搬入後 ，搬送機械臂保持貼合完畢的面板9,搬送至保管室8收 容於收容棚架。 又，在本實施例，如圖1所示，夾著加載互鎖真空室 5於相反側也設有脫氣室、貼合室，在單側（圖中爲右側 )的貼合室進行貼合作業時，對圖左側的裝置進行基板的 供給，可以提高生產節拍。 如前所述，基板搬入用之加載互鎖真空室、脫氣室、 貼合室配置爲直線狀，以可以與該配置平行地移動搬送機 -14- 1379132 械臂的方式配置，可以使裝置全體的配置變得簡單。 此外，藉由供使下基板由加載互鎖（load-lock )真空 室經脫氣室搬送至貼合室而使用輸送裝置搬送，沒有必要 使用真空機械臂，維修也可以簡單地進行》 【圖式簡單說明】 圖1係顯示本發明之一實施型態之基板貼合系統的全 體構成之一例。 圖2係顯示加載互鎖（load-lock )真空室的槪略構成 圖。 圖3係顯示脫氣室的槪略構成之圖。 圖4係供說明脫氣室的基板收容機構之圖》 圖5係顯示貼合室的槪略構成圖。 【主要元件符號說明】 2 :旋轉室 3 :搬送機械臂之移動軌道 4 :搬送機械臂 5 :加載互鎖（load-lock)真空室 6 :脫氣室 7 :貼合室 8 :面板保管室[Problems to be Solved by the Invention] In the above-mentioned Patent Document 1, the configuration is such that the two substrates are placed in one of the preparation chambers and the two chambers are placed in the same room. After the substrate is bonded, it is discharged by the other preliminary chamber. Therefore, the arrangement of the device is long and a large installation area is required. In addition, it is necessary to make the separate preparation chamber and the bonding chamber into a vacuum state, so that it is necessary to arrange the corresponding device, and the time until the vacuum is evacuated to a long time is shortened to shorten the production cycle. Further, as described in Patent Document 2, a robotic hand is disposed in the center, and a load lock chamber and a plurality of processing chambers are disposed around the robot hand to perform processing of the substrate. Though the configuration has been proposed, the large-scale processing chamber for bonding the substrates is also increased, and a large (arrangement) area is required. In addition, the transfer robot must also have a special configuration that can be operated under vacuum. [Means for Solving the Problem] In order to achieve the above object, in the present invention, a load-locking vacuum chamber, a degassing chamber, and a substrate bonding chamber are arranged in a straight line, and a gate valve is provided between the chambers. (gate-valve), a housing mechanism for accumulating a plurality of lower substrates is provided in the degassing chamber, and a gate valve for loading and attaching the upper substrate and a product for unloading the bonded product is provided in the bonding chamber; The lower substrate to be bonded to the -5,379,132, and the lower substrate are transported to the bonding chamber in the order in which they are transported to the degassing chamber. In addition, a linear movement path is provided from a load-locking vacuum chamber that is disposed in a substantially linear shape, and the substrate is conveyed in parallel to the bonding chamber, and the bonded product is provided as a moving path. A transfer robot that holds and transports the substrate and the product; the arrangement is such that a turnover chamber of the substrate for loading and unloading is provided at one end of the movement path, and a product that is temporarily stored at the other end is provided. Storage room. [Effects of the Invention] According to the substrate bonding apparatus of the present invention, the load lock chamber, the degassing chamber, and the bonding chamber are arranged in a straight line, and the substrate of each chamber is transported as a transport device (conveyor), and The degassing chamber is provided with a housing mechanism for accommodating a plurality of substrates on which the liquid crystal is dropped, and can be transported to the storage unit by the transport device, and can be stored in advance, and the maintenance can be performed without using a special vacuum robot arm. [Embodiment] Hereinafter, an embodiment of a substrate bonding apparatus of the present invention will be described based on the drawings. Fig. 1 is a plan view showing the entire configuration of the substrate bonding apparatus of the present invention. As shown in Fig. 1, a transfer chamber 2 for temporarily storing the substrate subjected to the previous process, and a transfer path 3 for moving the arm 6- 1379132 to the arm 4 by the transfer chamber are provided. . The decoupling chamber 6 and the bonding chamber 7 are provided on the left and right intermediate valves G2 to G5, respectively, around the load-locking vacuum chamber 5 for loading the board along the transport path 3, and are configured to be decompressed by space. Vacuum device. Further, gate valves G1 and G6 are also provided in the direction in which the load lock chamber 7 is opposed to the transport path 3 in the load lock chamber. Further, the load lock chamber, the deaeration chamber 6, and the bonding chamber 7 are also provided with transport devices 5C, 6C, and 7C for transporting the lower substrate. This apparatus uses a roller conveying device in this embodiment, but a belt feeding device can also be used. A panel storage chamber 8 for storing the bonded panel 9 is provided at an end portion on the opposite side of the transfer chamber of the transport path 3. The panel is stored in a cassette (housing shelf) when it is stored in a safe place. When a specific number of cassettes are accommodated in the cassette, each cassette is transported to the next project. In the revolving chamber 2, a color filter (hereinafter referred to as a CF substrate or an upper substrate) la, on which a color filter is formed, and a sealant for forming a TFT are coated in a ring shape, surrounded by a sealant. The optimum amount of the substrate is dropped (hereinafter referred to as the TFT substrate or the lower substrate lb is carried into the turnover chamber 2. At this time, the surface of the CF substrate la is applied to the TFT substrate 1b to drop the liquid crystal. Therefore, the CF substrate U is spirally stored with the bonding surface facing downward. Fig. 2 is a cross-sectional view showing the load-locking vacuum chamber. The TFT that is carried into the substrate of the turnover chamber 2 The substrate lb is carried into the load-locking vacuum chamber 5 by being held by the hand of the robot arm 4. The interlocking vacuum chamber 5 is provided for transporting the TFT substrate lb under the degassing chamber 6 with a gate that can be attached to the G5' The transporting type temporary chamber 8 panel substrate is attached to the inner liquid plate), and the upper type is transferred to the loading and unloading 1379132. The device 5C. Further, a receiving plug 11 for receiving the TFT substrate lb by the hand of the transfer robot arm 4 and delivering it to the transport device 5C is provided. The take-up plug 11 is normally housed in the lower portion of the transport device 5C. When the TFT substrate 1b is received, the drive device 5M is operated to raise the take-up plug 1, 1 and the TFT substrate 1b is received by the hand of the transfer robot 4. After the TFT substrate 1b is delivered to the take-up plug 11, the hand of the transfer robot arm is retracted to the gate valve G1, and when the φ is the same, the take-up claw 11 is housed in the lower portion of the transport device 5C, and the TFT is delivered on the transport device 5C. The structure of the substrate lb. After the TFT substrate 1b is taken up on the transporting device 5C, the gate valve G1 is closed but the gate valve 5B1 is opened, and the vacuum pump 5P1 that has been driven is decompressed and loaded into the interlocking vacuum chamber 5. At this time, the valves 5B1 to 5B3 are opened. Then, the valve 5B1 is closed at a point of time when the specific pressure is reduced, and the valves 5B2, 5B3 are opened, and the pressure reduction is continued by the already driven vacuum pump 5P2. When the specific pressure reduction state is reached, the gate valve G2 is opened, the conveying device 5C is driven, and the TFT substrate lb is carried into the degassing chamber 6. • A cross-sectional view of the degassing chamber is shown in Figure 3. The deaeration chamber 6 is provided with a housing mechanism 30 that includes a substrate holding portion (substrate receiving portion) 30a that holds the substrate in a plurality of stages (the maximum of five in the present embodiment) so that the plurality of TFT substrates lb can be accommodated at intervals. . Further, the inside of the degassing chamber 6 is always maintained in a specific decompressed state (vacuum state) during the operation of the apparatus. The housing mechanism 30 includes a plurality of substrate holding portions 30a and a driving means 30M composed of a motor. The details of this shelter are shown in Figure 4. Fig. 4(a) is a cross-sectional view of the conveying device portion seen above, and (b) is a line A_-8-1379132A. As shown in Fig. 4a, the substrate holding portion 30a configured as the housing mechanism 30 is located between the conveying devices 6C, and the substrate holding portion 30a can be held by the substrate holding portion 30a to raise the TFT substrate. In other words, the substrate holding portion 30a protrudes only inward from the conveying device 6C, and is configured such that the substrate can be more reliably received by the conveying device. After the TFT substrate 1b is transported by the transport device 6C, the position alignment mechanism first positions the TFT substrate 1b in the horizontal direction so as to be placed on the substrate holding portion 30a. The position alignment mechanism, as shown in FIG. 3, is provided with a substrate stopper 13 for driving up and down by the cylinder 13D for aligning the position of the TFT substrate 1b, and a drive composed of a cylinder and a motor. The device includes a rotary cam 14 that moves up and down by a cylinder and is rotated by a motor, a drive means 15D that is similarly composed of a cylinder and a motor, and a rotary cam 15 that is aligned with a position in the left-right direction. After the alignment is completed, the storage mechanism 30 is raised, and the TFT substrate lb is received by the substrate holding portion 3 Oa. After the TFT substrate 1b is received by the substrate holding portion 30a, the transport device 6C is retracted to the left and right drive means 30M, and the storage mechanism 30 is raised. The position of the accommodated TFT substrate is higher than the transport device 6C, and the storage mechanism 30 is configured. The sub-segment substrate holding portion 30a is located below the transport device. Thereafter, the conveying device 6C is returned to the normal conveying position. The TFT substrate is accumulated in the housing mechanism 30 in this order. In the above configuration, the transport device is retracted to the outside to collect the substrate. However, the storage mechanism 30 may be provided with a plurality of column portions (four positions) on the outer side of the transport device 6C, and the substrate holding portion 30a may be provided by the column portion. 1379132. It is configured to extend toward the conveying device 6C side and receive the holding substrate. However, in this case, it is necessary to form the substrate holding portion 30a to be long, and it is necessary to appropriately select the material or the like for forming the substrate holding portion so as not to be bent when the substrate is held. After the plurality of TFT substrates are accommodated in the housing mechanism 30, the gate valves G2 and G3 are closed for a predetermined period of time to remove air bubbles contained in the liquid crystal agent or the like which has been previously dropped onto the TFT substrate. φ shows a cross-sectional view of the substrate bonding apparatus in Fig. 5. The gate valve G6 is opened in advance, and the CF substrate (upper substrate) la is brought into the bonding chamber 7 with the surface of the hand attached to the transfer robot 4 facing downward. Since the valve 7B1 is opened by applying a negative pressure to the suction hole provided in the upper table, the vacuum pump 7TP is driven in advance, and the surface of the upper table 7UT is held down by the suction suction. CD substrate la. Further, although not shown in the drawing, when a suction pad having a suction hole that can move up and down is provided on the upper stage 7UT side, the adsorption pad is lowered to the CF substrate surface, and the CF substrate is held by the φ adsorption pad. By holding up to the 7UT surface of the upper table, adsorption holding can be performed. Further, the upper stage 7UT is provided with an electrostatic adsorption means or a bonding holding means so that the CF substrate 1a can be held in a vacuum state. After the CF substrate 1a is held by the upper stage 7UT by suction adsorption, the electrostatic adsorption means is operated or adsorbed to the work surface by suction suction means so that the adhesion holding means can be maintained even if the bonding chamber is in a vacuum state. Substrate. * When the holding of the CF panel 1 is completed, if the bonded panel 9 is present on the lower table 7DT, the hand holding surface -10- 1379132 of the robot arm is transported to the outside of the bonding chamber 7. Thereafter, the gate valve G6 is closed, and the open valve 7B2 causes the inside of the bonding chamber 7 to be in a specific vacuum state by the pre-driven vacuum pump 7P1. Thereafter, the valve 7B2 is closed, and the open valves 7B3, 7B4 are further decompressed by the pre-driven vacuum pump 7P2. After the inside of the bonding chamber 7 is in a specific vacuum state, the gate valve G3 is opened, and one TFT substrate lb is transported by the deaeration chamber 6 in a vacuum state to the lower table position of the bonding chamber 7 which is in a vacuum state. The bonding chamber is placed on the transport device 7C, and the transported TFT substrate lb is stopped at the placement position of the lower table 7DT. When the transport device 7C is stopped, the lower table 7DT or the receiving claw provided on the lower table 7DT side is moved to the upper side, and the TFT substrate is picked up by the transport device. After the lower substrate 7DT picks up the TFT substrate lb, it is held by an electrostatic chuck or a bonding mechanism so that the TFT substrate 1b does not move. Thereafter, the lower stage 7DT is moved in the horizontal direction to be aligned with the CF substrate la held on the upper stage 7UT. Each of the TFT substrate 1b and the CF substrate 1a is provided with a mark for position alignment, and the mark is observed by a camera (not shown) to obtain a positional shift amount. After the positional shift amount is obtained, the position is aligned by moving the lower table using a positioning mechanism disposed outside the bonding chamber (vacuum device for bonding). The above describes the configuration of the device and its operation, and then explains the overall operation. Next, the overall operation of the system will be described. Here, the CF substrate will be referred to as an upper substrate 1a, and the TFT substrate will be referred to as a lower substrate 1b. First, it is carried into the turnover chamber 2, and the upper substrate la necessary for inversion is reversed and stored. In addition, the lower substrate lb which is not necessary for turning is kept in the original state -11 - 1379132 and stored. Next, the transport robot 4 is operated to move one lower substrate lb to the load-lock vacuum chamber 5. The gate valve G1 on the inlet side of the load lock vacuum chamber 5 is opened, and one lower substrate lb is delivered to the transport device 5C for loading the interlocking vacuum chamber 5 (the details of the delivery have been described earlier, and the description is omitted here). The gate valve G1 is closed after the delivery device 5C ends the delivery of the lower substrate lb. Further, at this time, the other gate valves G2 and G4 of the interlocking vacuum chamber 5 are kept closed. Next, the pressure in the load lock vacuum φ chamber 5 is reduced to a specific pressure reduction state. After the end of the pressure reduction, the gate valve G2 is opened to drive the conveying devices 5C and 6C so that the lower substrate 1b is moved to the side of the degassing chamber 6. After the lower substrate 1b is moved to the degassing chamber 6, the storage mechanism 30 is operated, and the lower substrate 1b conveyed by the transport device 6C is placed on the substrate holding portion 30a of the storage mechanism 3G and stored. The lower substrate 1a is carried into the degassing chamber 6, and the gate valve G2 is closed. When the gate valve G2 is closed, the load lock chamber 5 is returned to the atmospheric pressure, and the gate valve gi is opened. The transfer robot arm 4 is returned to the turnover chamber, and the lower substrate is delivered to the transfer device 5C of the load lock vacuum chamber 5 before moving to the load lock chamber 5 before moving the same as the previous TFT base φ plate (lower substrate 1). on. After the delivery of the lower substrate 1b is completed by the transport device 5C, the hand of the transport robot 4 is retracted to the outside of the gate valve G1. After the hand is retracted, the transfer robot 4 returns to the swing chamber 2 to hold one TFT substrate lb as before, and moves to the load lock chamber 5 before moving. Next, the gate valve G1 is closed, and the decompression load is applied to the interlocking vacuum chamber 5. After the specific decompression state is reached, the lower substrate ib is accommodated in the scaffolding of the storage mechanism 30 of the degassing chamber 6 in the same manner as the previous gate valve G2. The lower substrate la -12 - 1379132 is completely moved into the degassing chamber 6 and then the gate valve G2 is closed. Similarly, when the load-locking vacuum chamber 5 is sequentially carried into the deaeration chamber 6 and the lower substrate lb is sequentially loaded into the storage unit 30 to store the fourth lower substrate, the transfer robot removes the upper substrate ia and the lower substrate lb from the swing chamber. Next, the interlocking vacuum chamber 5 is loaded to wait for the state of the two substrates. The fourth lower substrate lb is carried into the degassing chamber 6, and then the gate valve G2 is closed to open the gate valve G1 for loading the substrate in the interlocking vacuum chamber 5, and the lower substrate lb is delivered to the conveying device 5C. After the delivery of the lower substrate 1b is completed, the hand is retracted to the loading interlocking vacuum chamber 5, and the transfer robot is moved to the side of the bonding chamber 7. At this time, at the same time, the fifth lower substrate lb is held by the housing mechanism 30, and the signal is transmitted to the control means on the side of the bonding chamber 7. The gate valve G6 on the loading side of the bonding chamber 7 is opened, and the substrate 1a held by the hand of the transfer robot 4 is suction-adsorbed to the upper table 7UT provided in the bonding chamber 7 (opposite to the upper table 7UT) The maintenance procedure has been omitted from the previous description). After the upper substrate is fed to the upper table 7UT, the hand of the transfer robot arm is retracted to the outside of the bonding chamber 7, and the gate valve G6 is closed. Next, the decompression in the bonding chamber 7 is started. When the indoor pressure is reduced to a specific pressure and the degassing chamber 6 is carried into the fifth lower substrate, it is confirmed that the control means for the degassing chamber 6 by the control means of the bonding chamber 7 indicates the opening command of the gate valve G3. The control means of the degassing chamber 6 opens the gate valve G3. At the same time, one lower substrate (the lower substrate initially accommodated in the housing mechanism) is carried by the storage mechanism 2c on the transport device 6C, and the transport device is driven to carry the lower substrate lb out to the bonding chamber 7 . At the same time, the conveying device 7C for driving the bonding chamber 7 receives the lower substrate lb from the delivery device 13C, and stops the conveying device 7C when the lower substrate reaches the mounting position of the lower table 7DT, and is placed on the lower table 7DT. Keep it in a motionless manner. The holding of the lower substrate 1b is also carried out by electrostatic adsorption means or bonding means in the same manner as the upper substrate 1a. After the lower substrate lb is held on the lower stage, the gate valves G3 and G8 are closed to simultaneously align the positions of the upper substrate and the lower substrate. Positioning, using a camera (not shown), observing the positional alignment marks provided on the respective substrates, and obtaining the positional shift amount, and using the horizontal pressure mechanism provided with the drive source outside the bonding chamber to move the lower stage to the horizontal level. The direction is aligned. After the end position is aligned, the pressure in the bonding chamber is reduced to a specific pressure. Thereafter, the upper table is lowered to the lower table side for bonding. This position is aligned several times during the bonding. After finishing the bonding, the gate valve G6 is opened. The robot arm is transported, and the upper substrate 1a is held in advance by the swing chamber before the gate valve G6, and the upper substrate 1a is delivered to the upper table 7UT. After the loading of the upper substrate 1a is completed, the transport robot arm holds the bonded panel 9 and transports it to the storage chamber 8 to be accommodated in the storage rack. Further, in the present embodiment, as shown in Fig. 1, a degassing chamber and a bonding chamber are provided on the opposite side of the load-locking vacuum chamber 5, and the bonding chamber on one side (the right side in the drawing) is attached. In the cooperative industry, the supply of the substrate to the device on the left side of the figure can improve the production cycle. As described above, the load lock chamber, the deaeration chamber, and the bonding chamber for the substrate loading are arranged in a straight line, and the arm can be moved in parallel with the arrangement to move the conveyor-14-1379132. The overall configuration is simple. In addition, by feeding the lower substrate from the load-lock vacuum chamber to the bonding chamber through the degassing chamber and transporting it using the transport device, it is not necessary to use a vacuum robot arm, and maintenance can be performed simply. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an example of the overall configuration of a substrate bonding system according to an embodiment of the present invention. Figure 2 is a schematic diagram showing the construction of a load-lock vacuum chamber. Fig. 3 is a view showing a schematic configuration of a degassing chamber. Fig. 4 is a view for explaining a substrate accommodating mechanism of the degassing chamber. Fig. 5 is a schematic structural view showing the bonding chamber. [Description of main component symbols] 2: Rotation chamber 3: Moving rail of the transfer robot arm 4: Transfer robot arm 5: Load-lock vacuum chamber 6: Degassing chamber 7: Fitting chamber 8: Panel storage room