TW201801230A

TW201801230A - Substrate suspension transport device

Info

Publication number: TW201801230A
Application number: TW106108651A
Authority: TW
Inventors: 濱川健史; 奧田大輔; 森俊裕; 岡本貫志; 伊藤俊文
Original assignee: 東麗工程股份有限公司
Priority date: 2016-03-22
Filing date: 2017-03-16
Publication date: 2018-01-01
Also published as: JP2017174874A; CN108701635B; KR20180124891A; WO2017163887A1; TWI724135B; CN108701635A; KR102268373B1; JP6651392B2

Abstract

本發明提供一種基板懸浮搬送裝置，其可避免裝置構成之複雜化，不會引起成本上升，可使懸浮之基板容易地保持於固定高度。本發明之基板懸浮搬送裝置具備：懸浮平台，其使基板懸浮；基板保持單元，其保持由懸浮平台而懸浮之基板；及搬送驅動部，其於由基板保持單元保持有基板之狀態下，使基板保持單元移動，藉此使基板於搬送方向上移動；且基板保持單元具有吸附基板之複數個吸附部、及將該等所有的吸附部以排列於搬送方向之狀態安裝之保持框部，保持框部係經由升降部而設置於搬送驅動部，形成為藉由使升降部動作而使保持框部進行升降動作，從而使所有的吸附部相對於基板進行相接/分離動作。The invention provides a substrate suspension conveying device, which can avoid complication of the device structure, does not cause cost increase, and can easily maintain a suspended substrate at a fixed height. The substrate suspension transfer device of the present invention includes: a suspension platform that suspends the substrate; a substrate holding unit that holds the substrate suspended by the suspension platform; and a transfer driving unit that causes the substrate to be held by the substrate holding unit so that The substrate holding unit is moved to move the substrate in the conveying direction; and the substrate holding unit has a plurality of suction portions that suck the substrate and a holding frame portion that holds all of the suction portions arranged in the conveying direction to hold the substrate. The frame portion is provided in the conveyance driving portion via the lifting portion, and is formed to move the holding frame portion to move up and down by operating the lifting portion, so that all the suction portions are brought into contact with and separated from the substrate.

Description

Substrate suspension conveying device

本發明係關於一種一面使基板懸浮一面搬送基板之基板懸浮搬送裝置，尤其是關於一種可抑制因搬送時之振動而於基板上之塗佈膜上形成塗佈不均之基板懸浮搬送裝置。The present invention relates to a substrate suspension transfer device that transports a substrate while floating the substrate, and more particularly to a substrate suspension transfer device that can prevent uneven coating from being formed on a coating film on a substrate due to vibration during transportation.

於液晶顯示器或電漿顯示器等平板顯示器中，使用於基板上塗佈有光阻液者(稱為塗佈基板)。該塗佈基板係以如下方式生產，即，一方面由基板搬送裝置搬送基板，一方面由塗佈裝置將光阻液均勻地塗佈於基板上，藉此形成塗佈膜。其後，進而由基板搬送裝置搬送，且由乾燥裝置等使塗佈膜乾燥。於近來之基板搬送裝置中，為避免塗佈基板W之背面(與塗佈面相反側)之損傷，使用空氣懸浮或超音波懸浮等一面使基板W懸浮一面搬送基板W之基板懸浮搬送裝置。如圖10所示，該基板懸浮搬送裝置具有使基板W懸浮之懸浮平台部100、吸附並保持懸浮之狀態之基板W之基板保持單元102、及使基板保持單元102於基板W之搬送方向上移動之搬送驅動部103，使搬送驅動部103驅動而使基板保持單元102移動，藉此將基板W以懸浮於懸浮平台部100上之狀態於搬送方向上搬送。必須避免被搬送之基板W與懸浮平台部100接觸，且由設置於搬送中途之基板處理部(例如塗佈處理部)106進行精度良好之處理。因此，基板保持單元102形成為可一方面將基板W維持水平之姿勢，一方面固定地保持數十μm～數百μm之懸浮量。具體而言，如圖11所示，基板保持單元102將複數個吸附部104沿搬送方向上排列複數個，且將該等經由升降機構105而設置於搬送驅動部103。即，將吸附部104以特定間隔配置於搬送方向上，且於各個吸附部104上設置有升降機構105。而且，藉由控制各個升降機構105而吸附懸浮之基板W，將基板W吸附並保持於所設定之懸浮高度位置(圖11(b))。於該狀態下使搬送驅動部103於搬送方向上移動，藉此懸浮於懸浮平台部100上之基板W可以維持有微少之懸浮量之狀態而於搬送方向上精度良好地搬送。 [先前技術文獻] [專利文獻] [專利文獻1]2011-213435號公報In a flat panel display such as a liquid crystal display or a plasma display, a substrate coated with a photoresist (referred to as a coated substrate) is used. The coated substrate is produced in such a manner that a substrate is transferred by a substrate transfer device, and a photoresist is uniformly coated on the substrate by a coating device, thereby forming a coating film. After that, it is further transferred by a substrate transfer device, and the coating film is dried by a drying device or the like. In recent substrate transfer devices, in order to avoid damage to the back surface of the coated substrate W (opposite to the coating surface), the substrate floating transfer device is used to transfer the substrate W while floating the substrate W while using air suspension or ultrasonic suspension. As shown in FIG. 10, the substrate suspension transfer device includes a suspension platform portion 100 that suspends the substrate W, a substrate holding unit 102 that adsorbs and holds the substrate W in a suspended state, and a substrate holding unit 102 in a direction in which the substrate W is transferred. The moving conveyance drive unit 103 drives the conveyance drive unit 103 to move the substrate holding unit 102, and thereby conveys the substrate W in the conveyance direction in a state of being suspended on the floating platform unit 100. It is necessary to prevent the substrate W being transferred from coming into contact with the levitation platform portion 100, and the substrate processing portion (for example, the coating processing portion) 106 provided in the middle of the transportation must be processed with high accuracy. Therefore, the substrate holding unit 102 is formed in a posture that can maintain the substrate W on the one hand and fixedly maintain a floating amount of tens of μm to hundreds of μm on the other hand. Specifically, as shown in FIG. 11, the substrate holding unit 102 arranges a plurality of suction units 104 in the conveyance direction, and installs the plurality of suction units 104 on the conveyance drive unit 103 via the elevating mechanism 105. In other words, the suction units 104 are arranged at a predetermined interval in the conveying direction, and each of the suction units 104 is provided with a lifting mechanism 105. Then, by controlling each of the elevating mechanisms 105, the suspended substrate W is sucked, and the substrate W is sucked and held at a set floating height position (FIG. 11 (b)). In this state, the conveyance driving unit 103 is moved in the conveying direction, whereby the substrate W suspended on the levitation platform unit 100 can maintain a small amount of levitation and can be conveyed with high accuracy in the conveying direction. [Prior Art Literature] [Patent Literature] [Patent Literature 1] No. 2011-213435

[發明所欲解決之問題] 然而，於上述基板懸浮搬送裝置中，存在難以將懸浮之基板W遍及搬送方向調節為固定高度之問題。即，於上述基板懸浮搬送裝置中，於所有的吸附部104之各者設置有升降機構105，故必須個別地控制各個升降機構105而調節基板W之高度。因此，為了將基板W之懸浮量以遍及搬送方向成為固定之方式而調節，必須精度良好地控制所有的升降機構105之吸附部104之位置，從而存在基板保持單元102之構成複雜化之問題。又，若為了精度良好地調整所有的吸附部104之高度位置而採用高性能之升降機構105，則必須對所有的吸附部104之升降機構105採用高性能之升降機構105，從而存在裝置整體之成本增加之問題。因此，本發明之目的在於提供一種基板懸浮搬送裝置，其可避免裝置構成之複雜化，不會引起成本上升，可使懸浮之基板容易地保持於固定高度。 [解決問題之技術手段] 為解決上述問題，本發明之基板懸浮搬送裝置之特徵在於具備：懸浮平台，其使基板懸浮；基板保持單元，其保持由上述懸浮平台而懸浮之基板；及搬送驅動部，其於由上述基板保持單元保持有基板之狀態下使上述基板保持單元移動，藉此使基板於搬送方向上移動；且上述基板保持單元具有吸附基板之複數個吸附部、及將該等所有的吸附部以排列於搬送方向之狀態安裝之保持框部，上述保持框部經由升降部而設置於上述搬送驅動部，且形成為藉由使升降部動作而使上述保持框部進行升降動作，從而使所有的上述吸附部相對於基板進行相接/分離動作。根據本發明，基板保持單元具有安裝所有的吸附部之保持框部，故可容易地進行基板之高度位置之控制。即，由於在保持框部上安裝有所有的吸附部，故藉由使該保持框部進行升降動作而可同時調節所有的吸附部之高度位置。而且，使保持框部升降之升降機構不必如先前般設置於所有的吸附部之各者，只需要使保持框部升降之最小限度之升降機構即可。因此，與先前相比可減少升降機構之數量，故可避免裝置構成之複雜化，不會引起成本上升，可使懸浮之基板容易地保持於固定高度。又，可設為如下之構成，即，上述搬送驅動部具有沿上述懸浮平台移動之基底部，將該基底部與上述保持框部係由連結該等之連結部而一體化，且與該連結部分開另設有強化上述基底部與上述保持框部之連結之強化支持部。根據該構成，由於與連結部分開另設有強化支持部，故可加固基底部與保持框部之一體性。即，由於在保持框部上安裝有所有的吸附部，故若搬送驅動部之基底部移行，則於保持框部易產生由安裝精度等所導致之輕微之振動。該振動例如於進行塗佈處理之情形時，成為使形成於基板上之塗佈膜產生塗佈不均之要因，但藉由與升降部分開另設強化支持部而可使基底部與保持框部之剛性增加，可抑制搬送時產生之振動，於進行塗佈處理等基板處理之情形時可抑制振動所造成之影響。又，亦可設為如下構成，即，上述強化支持部具有僅容許特定之一方向之變位之導軌構件，且藉由該導軌構件將上述基底部與上述保持框部連結。根據該構成，藉由強化支持部而可抑制基底部與保持框部於特定之方向以外之方向之相對變位，故可抑制保持框部產生振動。又，亦可設為如下構成，即，上述強化支持部於搬送方向上配置於設置有上述吸附部之位置。根據該構成，於易成為振動源之吸附部設置有強化支持部，故可有效地抑制保持框產生振動。又，亦可設為如下構成，即，上述強化支持部配置於設置有上述吸附部之所有位置。根據該構成，於所有易成為振動源之吸附部設置有強化支持部，故可更確實地抑制保持框產生振動。又，亦可設為如下構成，即，於上述強化支持部設置有根據上述保持框之升降動作而進行伸縮動作之彈簧部，且藉由上述彈簧部之回復力而使上述基底部與上述保持框之連結強化。根據該構成，藉由彈簧部之回復力而使基底部與保持框之連結得以強化，從而可抑制保持框產生之振動。又，較佳為設為如下構成，即，上述強化支持部設置有限制上述保持框之升降方向之變位之變位限制機構。根據該構成，於強化支持部設置有變位限制機構，故至少於基板處理時由變位限制機構限制保持框之升降方向之變位，藉此可抑制保持框之振動，從而可抑制振動對基板處理造成之影響。又，亦可設為如下構成，即，上述變位限制機構係藉由約束上述導軌構件上之上述保持框之升降方向之變位而形成。根據該構成，由上述導軌構件所容許之特定方向之變位受到約束，故可使基底部與保持框部一體化，從而可有效地抑制振動之產生。 [發明之效果] 根據本發明，可避免裝置構成之複雜化，不會引起成本上升，可將懸浮之基板容易地保持於固定高度。[Problems to be Solved by the Invention] However, in the above-mentioned substrate floating conveying device, there is a problem that it is difficult to adjust the suspended substrate W to a fixed height throughout the conveying direction. That is, in the above-mentioned substrate suspension conveying device, since the lifting mechanism 105 is provided in each of all the suction sections 104, each lifting mechanism 105 must be individually controlled to adjust the height of the substrate W. Therefore, in order to adjust the floating amount of the substrate W so as to be fixed throughout the conveyance direction, it is necessary to accurately control the positions of the suction sections 104 of all the lifting mechanisms 105, so that the structure of the substrate holding unit 102 is complicated. In addition, if high-performance lifting mechanisms 105 are used in order to accurately adjust the height positions of all the suction sections 104, it is necessary to use high-performance lifting mechanisms 105 for all the lifting mechanisms 105 of the suction sections 104. The problem of increased costs. Therefore, an object of the present invention is to provide a substrate suspension conveying device, which can avoid complication of the device configuration, does not cause cost increase, and can easily maintain a suspended substrate at a fixed height. [Technical means to solve the problem] In order to solve the above problems, the substrate suspension transfer device of the present invention is characterized by including: a suspension platform that floats the substrate; a substrate holding unit that holds the substrate suspended by the suspension platform; and a conveyance drive The substrate holding unit moves the substrate holding unit in a state where the substrate is held by the substrate holding unit, thereby moving the substrate in the conveying direction; and the substrate holding unit has a plurality of suction sections that suction the substrate, and the like All the holding frames are attached to the holding frame portion in a state of being arranged in the conveying direction. The holding frame portion is provided on the conveying driving portion via a lifting portion, and is formed to move the holding frame portion to move up and down by operating the lifting portion. In this way, all the above-mentioned suction portions are brought into contact with / detached from the substrate. According to the present invention, since the substrate holding unit has a holding frame portion to which all the suction portions are mounted, the height position of the substrate can be easily controlled. That is, since all the suction parts are attached to the holding frame part, the height positions of all the suction parts can be adjusted at the same time by raising and lowering the holding frame part. In addition, the lifting mechanism for raising and lowering the holding frame portion need not be provided in each of all the suction portions as before, and only a minimum lifting mechanism for raising and lowering the holding frame portion may be required. Therefore, the number of lifting mechanisms can be reduced as compared with the previous, so that the complication of the device structure can be avoided, the cost will not be increased, and the suspended substrate can be easily maintained at a fixed height. In addition, the conveyance driving unit may have a base portion that moves along the levitation platform, and the base portion and the holding frame portion may be integrated by a connecting portion that connects the base portion and the connecting portion. A partial support is additionally provided to strengthen the connection between the base portion and the holding frame portion. According to this configuration, since a reinforcing support portion is provided separately from the connection portion, it is possible to reinforce one body of the base portion and the holding frame portion. That is, since all the suction parts are mounted on the holding frame portion, if the base portion of the conveyance driving portion moves, slight vibration due to mounting accuracy and the like is likely to occur in the holding frame portion. This vibration, for example, causes coating unevenness in a coating film formed on a substrate when a coating process is performed. However, the base portion and the holding frame can be formed by separately providing a reinforcing support portion from the lifting portion. The rigidity of the part can be increased, and vibration generated during transportation can be suppressed, and the influence of vibration can be suppressed when substrate processing such as coating processing is performed. In addition, the reinforcing support portion may have a rail member that allows displacement in only one specific direction, and the base member and the holding frame portion may be connected by the rail member. According to this configuration, the relative displacement of the base portion and the holding frame portion in a direction other than a specific direction can be suppressed by strengthening the support portion, so that vibration of the holding frame portion can be suppressed. Moreover, the said reinforcement support part may be arrange | positioned in the conveyance direction at the position where the said adsorption | suction part is provided. According to this structure, since the reinforcement support part is provided in the adsorption | suction part which becomes a vibration source easily, it can suppress the vibration of a holding frame effectively. Moreover, it is good also as a structure which the said reinforcement support part is arrange | positioned at all positions where the said adsorption | suction part is provided. According to this structure, since the reinforcement support part is provided in all the adsorption | suction parts which are easy to become a vibration source, the generation | occurrence | production of a vibration of a holding frame can be suppressed more reliably. In addition, a configuration may be adopted in which the spring support portion is provided with a spring portion that performs a telescoping operation according to the lifting movement of the holding frame, and the base portion and the holding portion are held by a return force of the spring portion. The link of the frame is strengthened. According to this configuration, the connection between the base portion and the holding frame is strengthened by the restoring force of the spring portion, and the vibration generated in the holding frame can be suppressed. In addition, it is preferable to adopt a configuration in which the strengthening support portion is provided with a displacement restricting mechanism that restricts the displacement of the holding frame in the raising and lowering direction. According to this configuration, since the displacement restricting mechanism is provided in the reinforcement support section, the displacement restricting mechanism restricts the displacement of the holding frame in the raising and lowering direction at least during substrate processing, thereby suppressing the vibration of the holding frame and suppressing the vibration Impact of substrate processing. It is also possible to adopt a configuration in which the displacement restricting mechanism is formed by restricting displacement of the holding frame on the rail member in the upward and downward directions. According to this configuration, the displacement in a specific direction allowed by the above-mentioned guide member is restricted, so that the base portion can be integrated with the holding frame portion, and the generation of vibration can be effectively suppressed. [Effects of the Invention] According to the present invention, it is possible to avoid complication of the device configuration, increase cost, and easily maintain the suspended substrate at a fixed height.

以下，使用圖式對本發明之基板懸浮搬送裝置之實施形態進行說明。圖1係概略地表示與本發明之基板懸浮搬送裝置1組合之塗佈裝置2之立體圖，圖2係與圖1之基板懸浮搬送裝置1組合之塗佈裝置2之前視圖。於圖1、圖2中，使基板W搬送之基板懸浮搬送裝置1與將塗佈膜形成於搬送之基板W上之塗佈裝置2之塗佈單元21組合，形成一連串之基板處理裝置。該基板懸浮搬送裝置1具有於一方向上延伸之懸浮平台部10，且沿著該懸浮平台部10之延伸之方向而搬送基板W。於圖1之例中，懸浮平台部10於X軸方向上延伸而形成，且使基板W於X軸方向上自上游側(前步驟側)搬送至下游側(後續步驟側)。而且，藉由自塗佈單元21噴出塗佈液而於基板W上形成塗佈膜。具體而言，一方面將基板W以懸浮於懸浮平台部10上之狀態於X軸方向上搬送，一方面自塗佈單元21噴出塗佈液，藉此於基板W上形成厚度均勻之塗佈膜。於以下之說明中，將基板被搬送之方向設為X軸方向，X軸方向相當於搬送方向。又，將與X軸方向於水平面上正交之方向設為Y軸方向，尤其將Y軸方向亦稱為河寬方向。而且，將與X軸方向及Y軸方向之兩者正交之方向設為Z軸方向而進行說明。塗佈單元21係將塗佈液塗佈於基板W者，且具有框部22與金屬卡口部23。框部22具有分別配置於懸浮平台部10之Y軸方向兩側之支柱22a，於該支柱22a上設置有金屬卡口部23。具體而言，支柱22a固定地設置於Y軸方向(河寬方向)兩側，且以不妨礙下述基板保持部30之移行之方式配置於較基板保持部30之移行路徑更靠外側。而且，於該等支柱22a上架設有金屬卡口部23，金屬卡口部23以橫穿懸浮平台部10之狀態而安裝。又，於支柱22a上設置有升降機構，藉由使升降機構作動而可使金屬卡口部23於Z方向移動。即，藉由升降機構而可使金屬卡口部23相對於懸浮平台部10進行相接/分離動作。金屬卡口部23係噴出塗佈液者，且於一方向上延伸而形成。該金屬卡口部23形成有於一方向上延伸之狹縫噴嘴23a(參照圖2)，可將貯存於金屬卡口部23內之塗佈液自狹縫噴嘴23a噴出。具體而言，狹縫噴嘴23a形成於與懸浮平台部10對向之面，金屬卡口部23係以狹縫噴嘴23a於河寬方向延伸之狀態而設置。而且，在使金屬卡口部23相對於搬送之基板W升降而使基板W與狹縫噴嘴23a之距離符合特定之距離之狀態下，自狹縫噴嘴23a噴出塗佈液，藉此於搬送方向上連續地形成於河寬方向上一致之塗佈膜。而且，一方面使塗佈液自狹縫噴嘴23a噴出，一方面使基板W移動，藉此於基板W上形成厚度均勻之塗佈膜。又，基板懸浮搬送裝置1係一方面使基板W懸浮，一方面於一方向(本實施形態中X軸方向)上搬送基板者。基板懸浮搬送裝置1具有使基板W懸浮之懸浮平台部10、及保持並搬送懸浮於懸浮平台部10上之基板W之基板搬送單元3。懸浮平台部10係使基板W懸浮者，於本實施形態中具有空氣懸浮機構。懸浮平台部10係於基台11上設置平板部12而形成，將複數塊平板部12沿X軸方向排列而形成。即，平板部12具有平滑之基板懸浮面12a(參照圖3)，將各個基板懸浮面12a以成為均勻高度之方式而排列。而且，於基板懸浮面12a上，可藉由與被搬送之基板W之間形成空氣層而使基板W懸浮於特定高度位置。具體而言，於平板部12形成有於基板懸浮面12a上設置開口之微小之噴出口(未圖示)與吸引口(未圖示)，將噴出口與壓縮機利用配管而連接，且將吸引口與真空泵利用配管而連接。而且，藉由使自噴出口噴出之空氣與吸引口產生之吸引力平衡，而可使基板W自基板懸浮面12a以水平之姿勢懸浮於特定高度。藉此，可於高精度地維持基板W之平面姿勢(稱為平面度)之狀態下搬送基板。又，懸浮平台部10之平板部12之Y軸方向尺寸形成為小於被搬送之基板W之Y軸方向尺寸，若將基板W載置於基板懸浮面12a上，則成為基板W之Y軸方向端部自基板懸浮面12a突出之狀態。藉由利用下述基板搬送單元3將該突出之部分(突出區域T)予以保持而可搬送基板W。該平板部12之Y軸方向尺寸設定為可由基板保持部30保持突出區域T之必需之最小限度之尺寸。即，於由基板保持部30保持有基板W之突出區域T之情形時，突出區域T之突出量設定為形成不會使基板保持部30與平板部12之間相互接觸之微小之間隙之程度。又，基板搬送單元3係搬送懸浮狀態之基板W者，且具有保持基板W之基板保持單元30、及使基板保持單元30移行之搬送驅動部31。搬送驅動部31構成為使基板保持單元30於搬送方向上移動，且由沿懸浮平台部10於搬送方向上延伸之搬送導軌部31a、及於該搬送導軌部31a上移行之基底部31b而形成。具體而言，將以於搬送方向上延伸之方式設置之基台31c(參照圖2)配置於懸浮平台部10之河寬方向兩側，且於各個基台31c上設置有搬送導軌部31a。即，將搬送導軌部31a沿懸浮平台部10不間斷地連續設置。又，基底部31b係形成為凹形狀之板狀構件，例如圖2、圖6所示以覆蓋搬送導軌部31a之上表面之方式而設置。具體而言，基底部31b設置成隔著空氣墊32而覆蓋於搬送導軌部31a，藉由使線性馬達(未圖示)驅動而使基底部31b於搬送導軌部31a上移行。即，藉由驅動控制線性馬達而使基底部31b於搬送導軌部31a上不接觸地移行，且可於特定之位置停止。又，基板保持單元30係保持基板W者，且安裝於基底部31b。具體而言，如圖4所示，基板保持單元30具有於搬送方向上延伸之保持框部40、及安裝於該保持框部40之吸附部41，該保持框部40與基底部31b經由升降部42而連結。而且，藉由使升降部42驅動而使保持框部40進行升降動作，可使吸附部41相對於基板W之背面而相接/分離。保持框部40係安裝吸附部41者，且具有長條之平板形狀。該保持框部40配置於各個基底部31b上，且經由升降部42而配置於基底部31b上。該保持框部40以將懸浮平台部10插入於河寬方向之方式而配置，且以其長邊方向沿著搬送方向之方式而配置。而且，若使搬送驅動部31驅動，則2個保持框部40同一步調沿著懸浮平台部10而移行。又，保持框部40之長邊方向之長度係根據搬送之基板W之搬送方向長度而形成，於保持框部40之上端部分配置有複數個吸附部41。即，若使升降部42驅動而引起保持框部40上升，則所有的吸附部41同時上升，若保持框部40下降，則所有的吸附部41同時下降。藉此，與針對每一吸附部41具有升降部42之先前之情形相比，構成變得容易，從而可避免控制複雜化。又，本實施形態中，於保持框部40上等間隔地配置有各個吸附部41，且將自搬送方向一側端部至另一側端部之尺寸設定成為基板W之搬送方向長度以下。即，在基板W懸浮於懸浮平台上之狀態下，若使保持框部40上升，則所有的吸附部41抵接於基板W之背面，若使保持框部40下降，則所有的吸附部41與基板W隔開。又，吸附部41係吸附並保持基板W者，且形成為大致長方體之區塊狀。基板保持單元30以使其上表面(吸附面33)與所懸浮之基板W之下表面之高度位置相同之方式而設定。而且，如圖5所示，於吸附面33上形成有開口部34，於該開口部34內埋設有能夠彈性變形之蛇腹形狀之吸附墊35。該吸附墊35係產生吸引力而吸附並保持基板W者，於通常狀態(無基板W之狀態)下，設定成以其前端自開口部34稍微突出之狀態待機(參照圖5(a))。而且，若將基板W載置於基板懸浮面12a則自基板懸浮面12a於河寬方向上突出之部分抵接於吸附墊35。該狀態下若使吸附墊35產生吸引力，則一方面基板W之下表面被吸附墊35吸引，一方面於保持該吸引狀態之情況下吸附墊35本身於開口部34內收縮而使基板W之下表面抵接於吸附面33且保持基板W(參照圖5(b))。藉此，由懸浮平台部10而懸浮之基板W以遍及河寬方向維持相同之懸浮高度位置之狀態得以保持。又，升降部42係一方面將保持框部40支持於基底部31b上一方面使保持框部40進行升降動作者，於本實施形態中，如圖4所示，於搬送方向兩端部附近各設置1台，共計設置2台。此處，圖6係於搬送方向上觀察升降部42之圖。如圖6所示，升降部42係將楔形之區塊43組合而形成，於三角柱形狀之區塊43之斜面彼此抵接之狀態下固定於基底部31b。該等區塊43中，一區塊43a經由撐桿44而與保持框部40連結，另一區塊43b與基底部31b連結。而且，於一區塊43a上設置有致動器45，藉由驅動控制該致動器45而可使一區塊43a相對於另一區塊43b沿斜面變位。即，若將一區塊43a朝Y軸方向(例如正側)推壓，則區塊43a沿斜面移動之結果可於Z方向(鉛垂向上)變位而使保持框部40上升(圖6(a)→圖6(b))。又，若將一區塊朝相反方向(例如Y軸方向負側)推壓，則區塊43a沿斜面移動之結果可於Z方向(鉛垂向下)變位而使保持框部40下降(圖6(b)→圖6(a))。藉由使用組合有該楔形之區塊43之升降部42而可使對於輸入之保持框部40之升降方向之動作精度提高，從而可精度良好地進行吸附部41相對於基板W之位置控制。又，於保持框部40上設置有強化保持框部40與基底部31b之連結之強化支持部50。與僅由升降部42將保持框部40與基底部31b連結之情形相比，該強化支持部50係至少於基板處理時使保持框部40與基底部31b之連結強度提高，從而抑制由剛性不足導致之振動之產生者。如圖4所示，強化支持部50以連結保持框部40與基底部31b之方式而設置，於本實施形態中，如圖4所示，強化支持部50於搬送方向上，設置於安裝有吸附部41之位置。即，配置吸附部41之部分因吸附部41之自重之影響等而易成為振動源，故藉由於該吸附部41之正下方配置強化支持部50而可一方面強化保持框部40與基底部31b之連結，一方面有效地抑制振動之產生。於本實施形態中，強化支持部50係配置於所有的吸附部41之正下方。如圖7所示，強化支持部50具有固定於基底部31b上之支持本體部51、及線性導軌52(導軌構件)，且藉由將該線性導軌52與保持框部40連結而形成。此處，圖7(a)係於搬送方向上觀察強化支持部50之圖，圖7(b)係於Y軸方向上觀察作為強化支持部50之線性導軌52之圖。支持本體部51係剖面L字型之平板構件，將安裝面53以與保持框部40側對向之姿勢由螺栓54固定於基底部31b上。於安裝面53上設置有線性導軌52，將線性導軌52之軌道55安裝於沿Z方向(保持框部40之升降方向)延伸之方向上。而且，將線性導軌52之區塊56與保持框部40連結。藉此，容許保持框部40於僅Z方向之變位且限制保持框部40朝除Z方向以外之方向之變位。即，保持框部40於使升降部42驅動之情形時沿線性導軌52順利地移動，但限制保持框部40朝Z方向以外之方向之變位，藉此保持框部40朝Z方向以外之方向之變位(振動等)受到限制。又，於該強化支持部50設置有變位限制機構60。該變位限制機構60係限制保持框部40於升降方向上變位者。具體而言，於保持框部40設置有線性夾具62，該線性夾具62藉由夾持線性導軌52之軌道而約束朝升降方向(Z方向)之變位。即，如圖7(b)所示，線性夾具62具有夾具本體62a、相對於夾具本體62a進退之楔形之活塞部62b、及配置於活塞部62b與導軌之間之接觸部62c，且構成為根據保持框部40之升降動作而使線性夾具62於線性導軌52上變位。而且，若藉由驅動控制活塞部62b而使例如活塞部62b變位至夾具本體62a內，則會將接觸部62c朝軌道55側推壓，藉此由接觸部62c彼此將軌道55夾持且固定。即，若使線性夾具62於軌道55上之特定之位置作動，則保持框部40之升降方向之變位受到限制，且於該位置將保持框部40剛性固定。藉此，可進一步提高保持框部40與基底部31b之剛性，且與僅強化支持部50之情形相比可更有效地抑制振動之產生。於本實施形態中，變位限制機構60於基板保持中作動。即，於基板W之搬入、搬出動作中，配置於保持框部40下降之位置，且變位限制機構60並未作動。而且，若將基板W載置於懸浮平台部10，則保持框部40上升，吸附部41抵接於基板W之背面而吸附基板W。而且，若該基板W之保持姿勢成為穩定之狀態則變位限制機構60作動，將保持框部40之位置剛性固定。根據上述實施形態之基板懸浮搬送裝置，與升降部42分開另設有強化支持部50，故可加固基底部31b與保持框部40之一體性。即，於保持框部40上安裝有所有的吸附部41，故若搬送驅動部31之基底部31b移行，則於保持框部40易產生由安裝精度、自重等所導致之輕微之振動。該振動例如於進行塗佈處理之情形時，成為使形成於基板W上之塗佈膜上產生塗佈不均之要因，但藉由與升降部42分開另設強化支持部50而可使基底部31b與保持框部40之剛性增加，可抑制搬送時產生之振動，且於進行塗佈處理等基板處理之情形時可抑制振動所造成之影響。又，於上述實施形態中，對於變位限制機構60中為線性夾具62之情形進行了說明，但如圖8所示，亦可為使用有連桿式夾具63者。具體而言，由固定於吸附部41正下方之基底部31b上而配置之支柱部64、及設置於該支柱部64之連桿式夾具63而形成，連桿式夾具63藉由進行空壓控制而使桿部63a旋動，可鎖定保持框部40。即，連桿式夾具63之桿部63a形成為可根據活塞63b之動作而相對於保持框部40進行相接/分離，藉由桿部63a之前端支持保持框部40之下端而將保持框部40之位置剛性固定。於本實施形態中，於保持框部40到達基板保持中之高度位置時，藉由活塞63b推壓桿部63a而使桿部63a旋動，桿部63a之前端支持保持框部40之下端。即便為此種變位限制機構60，亦可進一步提高保持框部40與基底部31b之剛性，與僅強化支持部50之情形相比可更有效地抑制振動之產生。又，於上述實施形態中，對設置有變位限制機構60之例進行了說明，但亦可不設置變位限制機構60而為僅強化支持部50之構成。例如，僅使用線性導軌52、滾珠螺桿等線性運動導軌(導軌構件)作為強化支持部50，藉由將保持框部40與基底部31b連結而將保持框部40與基底部31b之相對變位限定於僅特定之一方向，限制朝除特定之方向以外之方向之變位。藉此，保持框部40與基底部31b之連結與僅升降部42之情形相比可抑制振動之產生。又，於上述實施形態中，對將導軌構件用作強化支持部50之例進行了說明，強化支持部50亦可為具有彈簧部70、且藉由該彈簧部70之回復力而強化保持框部40與基底部31b之連結者。例如圖9所示，強化支持部50由棒狀之軸本體71、及設置於該軸本體71上之彈簧部70而形成。該彈簧部70係在保持框部40位於基板保持中之高度位置之狀態下收縮特定量而設置。藉此，在保持框部40處於基板保持中之情形時，彈簧部70之回復力在加固保持框部40與基底部31b之連結之方向上發揮作用，故與僅升降部42之情形相比，可使保持框部40與基底部31b之剛性提高，且可抑制振動之產生。又，於上述實施形態中，對將設置強化支持部50之位置設置於所有設置有吸附部41之位置(吸附部41正下方之位置)之例進行了說明，但亦可為自設置有吸附部41之位置適當選擇且配置之構成。又，亦可為將強化支持部50設置於除設置有吸附部41之位置以外之位置之構成，亦可於保持框部40與基底部31b之剛性相對較低之部位、即於保持框部40之搬送方向中央部、保持框部40之搬送方向端部適當分散而配置。又，於上述實施形態中，對將基板W懸浮搬送裝置與塗佈裝置組合之例進行了說明，但基板W懸浮搬送裝置可與曝光機、檢查裝置，標記裝置等各種基板處理裝置組合。而且，藉由抑制基板W搬送中之振動之產生而可極力抑制振動對基板處理所造成之影響。Hereinafter, the embodiment of the board | substrate suspension conveyance apparatus of this invention is demonstrated using drawing. FIG. 1 is a perspective view schematically showing a coating device 2 combined with the substrate suspension transfer device 1 of the present invention, and FIG. 2 is a front view of the coating device 2 combined with the substrate suspension transfer device 1 of FIG. 1. In FIGS. 1 and 2, the substrate suspension transfer device 1 for transferring the substrate W and the coating unit 21 of the coating device 2 for forming a coating film on the transferred substrate W are combined to form a series of substrate processing devices. The substrate suspension transfer device 1 includes a suspension platform portion 10 extending in one direction, and transfers a substrate W along a direction in which the suspension platform portion 10 extends. In the example of FIG. 1, the levitation platform portion 10 is formed to extend in the X-axis direction, and the substrate W is transported from the upstream side (the front step side) to the downstream side (the subsequent step side) in the X-axis direction. Then, a coating liquid is sprayed from the coating unit 21 to form a coating film on the substrate W. Specifically, on the one hand, the substrate W is transported in the X-axis direction in a state of being suspended on the suspension platform part 10, and on the other hand, a coating liquid is sprayed from the coating unit 21, thereby forming a uniform thickness coating on the substrate W membrane. In the following description, the direction in which the substrate is transported is referred to as the X-axis direction, and the X-axis direction corresponds to the transport direction. A direction orthogonal to the X-axis direction on a horizontal plane is referred to as a Y-axis direction, and the Y-axis direction is also referred to as a river width direction. In addition, a direction orthogonal to both the X-axis direction and the Y-axis direction will be described as the Z-axis direction. The coating unit 21 applies a coating liquid to a substrate W, and includes a frame portion 22 and a metal bayonet portion 23. The frame portion 22 includes pillars 22 a disposed on both sides in the Y-axis direction of the suspension platform portion 10, and a metal bayonet portion 23 is provided on the pillar 22 a. Specifically, the pillars 22 a are fixedly provided on both sides in the Y-axis direction (the river width direction), and are arranged further outside than the movement path of the substrate holding portion 30 so as not to hinder the movement of the substrate holding portion 30 described below. Further, a metal bayonet portion 23 is set up on these pillars 22 a, and the metal bayonet portion 23 is installed in a state crossing the suspension platform portion 10. A lifting mechanism is provided on the pillar 22a, and the metal bayonet portion 23 can be moved in the Z direction by operating the lifting mechanism. That is, the metal bayonet portion 23 can be brought into contact with and separated from the floating platform portion 10 by the lifting mechanism. The metal bayonet portion 23 is formed by a person spraying a coating liquid and extending in one direction. The metal bayonet portion 23 is formed with a slit nozzle 23a (see FIG. 2) extending in one direction, and the coating liquid stored in the metal bayonet portion 23 can be ejected from the slit nozzle 23a. Specifically, the slit nozzle 23a is formed on a surface facing the suspension platform portion 10, and the metal bayonet portion 23 is provided in a state where the slit nozzle 23a extends in the river width direction. Then, in a state where the metal bayonet portion 23 is raised and lowered with respect to the substrate W to be transported so that the distance between the substrate W and the slit nozzle 23a conforms to a specific distance, the coating liquid is ejected from the slit nozzle 23a, thereby carrying out the transportation The coating film is formed continuously in the river width direction. On the one hand, the coating liquid is ejected from the slit nozzle 23a, and on the other hand, the substrate W is moved to form a coating film having a uniform thickness on the substrate W. In addition, the substrate suspension conveying device 1 is a person who suspends the substrate W and conveys the substrate in one direction (the X-axis direction in this embodiment). The substrate suspension transfer device 1 includes a suspension platform portion 10 that suspends the substrate W, and a substrate transfer unit 3 that holds and transfers the substrate W suspended on the suspension platform portion 10. The levitation platform unit 10 is a person who suspends the substrate W, and has an air levitation mechanism in this embodiment. The levitation platform portion 10 is formed by providing a flat plate portion 12 on the base 11, and a plurality of flat plate portions 12 are arranged in the X-axis direction. That is, the flat plate portion 12 has a smooth substrate floating surface 12 a (see FIG. 3), and the substrate floating surfaces 12 a are arranged so as to have a uniform height. Further, the substrate W can be suspended at a specific height position by forming an air layer between the substrate floating surface 12a and the substrate W to be transferred. Specifically, the flat plate portion 12 is formed with a minute ejection port (not shown) and a suction port (not shown) provided with openings on the substrate floating surface 12a, and the ejection port and the compressor are connected by a pipe, and The suction port and the vacuum pump are connected by a pipe. In addition, the substrate W can be suspended at a specific height from the substrate floating surface 12a in a horizontal posture by balancing the air ejected from the ejection outlet with the attractive force generated by the suction port. This makes it possible to transport the substrate while maintaining the planar posture (referred to as flatness) of the substrate W with high accuracy. In addition, the Y-axis dimension of the flat plate portion 12 of the floating platform portion 10 is formed to be smaller than the Y-axis dimension of the substrate W to be transported. When the substrate W is placed on the substrate floating surface 12a, it becomes the Y-axis direction of the substrate W. A state where the end portion protrudes from the substrate floating surface 12a. The substrate W can be transferred by holding the protruding portion (protruded area T) by the substrate transfer unit 3 described below. The dimension in the Y-axis direction of the flat plate portion 12 is set to a minimum size necessary for the protruding area T to be held by the substrate holding portion 30. That is, in the case where the protruding area T of the substrate W is held by the substrate holding portion 30, the protruding amount of the protruding area T is set to such a degree as to form a minute gap that does not allow the substrate holding portion 30 and the flat plate portion 12 to contact each other. . The substrate transfer unit 3 transfers the substrate W in a suspended state, and includes a substrate holding unit 30 that holds the substrate W, and a transfer driving unit 31 that moves the substrate holding unit 30. The transport driving unit 31 is configured to move the substrate holding unit 30 in the transport direction, and is formed by a transport guide portion 31a extending along the suspension platform portion 10 in the transport direction, and a base portion 31b traveling on the transport guide portion 31a. . Specifically, the base 31c (refer FIG. 2) extended so that it may extend in a conveyance direction is arrange | positioned on both sides of the river width direction of the suspension platform part 10, and the conveyance rail part 31a is provided in each base 31c. That is, the conveyance rail part 31a is continuously provided along the suspension platform part 10 without interruption. The base portion 31b is a plate-like member formed in a concave shape, and is provided so as to cover the upper surface of the conveyance rail portion 31a, for example, as shown in Figs. 2 and 6. Specifically, the base portion 31b is provided so as to cover the transport rail portion 31a with the air cushion 32 interposed therebetween, and the base portion 31b is moved on the transport rail portion 31a by driving a linear motor (not shown). That is, by driving and controlling the linear motor, the base portion 31b moves on the conveyance guide portion 31a without contact, and can be stopped at a specific position. The substrate holding unit 30 holds a substrate W and is mounted on the base portion 31b. Specifically, as shown in FIG. 4, the substrate holding unit 30 includes a holding frame portion 40 extending in the conveying direction and an adsorption portion 41 attached to the holding frame portion 40. The holding frame portion 40 and the base portion 31 b are raised and lowered through 42 is connected. In addition, by driving the lifting portion 42 to move the holding frame portion 40 up and down, the suction portion 41 can be brought into contact with and separated from the rear surface of the substrate W. The holding frame portion 40 is a person to which the suction portion 41 is attached, and has a long flat plate shape. The holding frame portion 40 is disposed on each base portion 31 b, and is disposed on the base portion 31 b via the elevating portion 42. This holding frame part 40 is arrange | positioned so that the suspension platform part 10 may be inserted in the river width direction, and it is arrange | positioned so that the longitudinal direction may be along the conveyance direction. When the conveyance drive unit 31 is driven, the two holding frame units 40 move along the floating platform unit 10 at the same pace. The length in the longitudinal direction of the holding frame portion 40 is formed in accordance with the length in the conveying direction of the substrate W to be conveyed, and a plurality of suction portions 41 are arranged on the upper end portion of the holding frame portion 40. That is, when the holding frame portion 40 is raised by driving the lifting portion 42, all the suction portions 41 are raised simultaneously, and when the holding frame portion 40 is lowered, all the suction portions 41 are simultaneously lowered. As a result, the configuration becomes easier as compared with a case where the lifting portion 42 is provided for each of the suction portions 41, and the control can be prevented from being complicated. Moreover, in this embodiment, each suction part 41 is arrange | positioned at equal intervals on the holding frame part 40, and the dimension from the one end part to the other end part of a conveyance direction is set to the length of the board | substrate W in the conveyance direction or less. That is, in a state where the substrate W is suspended on the suspension platform, if the holding frame portion 40 is raised, all the suction portions 41 abut against the back surface of the substrate W, and if the holding frame portion 40 is lowered, all the suction portions 41 are lowered. Spaced from the substrate W. In addition, the suction unit 41 sucks and holds the substrate W, and is formed in a substantially rectangular parallelepiped block shape. The substrate holding unit 30 is set in such a manner that the upper surface (suction surface 33) and the lower surface of the suspended substrate W have the same height position. Further, as shown in FIG. 5, an opening 34 is formed on the suction surface 33, and an elastic pad-shaped suction pad 35 is embedded in the opening 34. The suction pad 35 attracts and holds the substrate W, and in a normal state (state without the substrate W), it is set to stand by with its tip slightly protruding from the opening 34 (see FIG. 5 (a)). . When the substrate W is placed on the substrate floating surface 12 a, a portion protruding from the substrate floating surface 12 a in the river width direction abuts on the adsorption pad 35. If the suction pad 35 is attracted in this state, the lower surface of the substrate W is attracted by the suction pad 35, while the suction pad 35 is contracted in the opening 34 while the suction state is maintained, and the substrate W is attracted. The lower surface is in contact with the suction surface 33 and holds the substrate W (see FIG. 5 (b)). Thereby, the board | substrate W suspended by the suspension platform part 10 is maintained in the state which maintained the same suspension height position throughout the river width direction. The lifting portion 42 supports the holding frame portion 40 on the base portion 31b while lifting the holding frame portion 40. In this embodiment, as shown in FIG. 4, near the two ends in the conveying direction. One for each and two for a total. Here, FIG. 6 is a figure which looked at the raising-lowering part 42 in the conveyance direction. As shown in FIG. 6, the lifting portion 42 is formed by combining wedge-shaped blocks 43, and is fixed to the base portion 31 b in a state where the inclined surfaces of the triangular column-shaped blocks 43 abut each other. Among these blocks 43, one block 43a is connected to the holding frame portion 40 via the stay 44 and the other block 43b is connected to the base portion 31b. Moreover, an actuator 45 is provided on one block 43a, and by driving and controlling the actuator 45, one block 43a can be displaced along the inclined plane with respect to the other block 43b. That is, if a block 43a is pushed in the Y-axis direction (for example, the positive side), the result of the block 43a moving along the slope can be displaced in the Z direction (vertical upward) and the holding frame portion 40 is raised (FIG. 6) (a) → Figure 6 (b)). In addition, if a block is pushed in the opposite direction (for example, the negative side of the Y-axis direction), the result of the block 43a moving along the inclined plane can be displaced in the Z direction (vertical downward) and the holding frame portion 40 is lowered ( Figure 6 (b) → Figure 6 (a)). By using the lifting portion 42 in which the wedge-shaped block 43 is combined, the movement accuracy of the input holding frame portion 40 in the lifting direction can be improved, and the position of the suction portion 41 with respect to the substrate W can be accurately controlled. Further, the holding frame portion 40 is provided with a reinforcing support portion 50 that strengthens the connection between the holding frame portion 40 and the base portion 31b. Compared with the case where the holding frame portion 40 is connected to the base portion 31b only by the lifting portion 42, the reinforcing support portion 50 increases the connection strength of the holding frame portion 40 and the base portion 31b at least during substrate processing, thereby suppressing rigidity Producer of vibration caused by insufficient. As shown in FIG. 4, the reinforcement support part 50 is provided so that the holding frame part 40 and the base part 31b may be connected. In this embodiment, as shown in FIG. 4, the reinforcement support part 50 is provided in the direction of a conveyance, The position of the suction section 41. That is, the portion where the adsorption portion 41 is disposed is easily a vibration source due to the influence of the weight of the adsorption portion 41 and the like. Therefore, by arranging the reinforcement support portion 50 directly below the adsorption portion 41, the holding frame portion 40 and the base portion can be strengthened on the one hand. The connection of 31b, on the one hand, effectively suppresses the generation of vibration. In this embodiment, the reinforcing support portion 50 is disposed directly below all the suction portions 41. As shown in FIG. 7, the reinforcing support portion 50 includes a support body portion 51 and a linear guide rail 52 (rail member) fixed to the base portion 31 b, and is formed by connecting the linear guide rail 52 and the holding frame portion 40. Here, FIG. 7 (a) is a diagram of the reinforcing support portion 50 viewed in the conveying direction, and FIG. 7 (b) is a diagram of the linear guide 52 as the reinforcement support portion 50 viewed in the Y-axis direction. The supporting body portion 51 is a flat plate member having an L-shaped cross section, and the mounting surface 53 is fixed to the base portion 31 b by a bolt 54 in a posture facing the holding frame portion 40 side. A linear guide rail 52 is provided on the mounting surface 53, and the rail 55 of the linear guide rail 52 is installed in a direction extending in the Z direction (the lifting direction of the holding frame portion 40). The block 56 of the linear guide 52 is connected to the holding frame portion 40. Thereby, displacement of the holding frame portion 40 in only the Z direction is allowed and displacement of the holding frame portion 40 in directions other than the Z direction is restricted. That is, the holding frame portion 40 moves smoothly along the linear guide 52 when the lifting portion 42 is driven, but restricts the displacement of the holding frame portion 40 in a direction other than the Z direction, thereby holding the holding frame portion 40 in a direction other than the Z direction. Directional displacement (vibration, etc.) is restricted. Further, a displacement restricting mechanism 60 is provided in the strengthening support section 50. This displacement restricting mechanism 60 restricts the displacement of the holding frame portion 40 in the raising and lowering directions. Specifically, a linear jig 62 is provided in the holding frame portion 40, and the linear jig 62 restrains displacement in the lifting direction (Z direction) by clamping the rail of the linear guide 52. That is, as shown in FIG. 7 (b), the linear jig 62 includes a jig body 62a, a wedge-shaped piston portion 62b advancing and retracting with respect to the jig body 62a, and a contact portion 62c disposed between the piston portion 62b and the guide rail, and is configured as follows: The linear clamp 62 is displaced on the linear guide rail 52 in accordance with the lifting operation of the holding frame portion 40. In addition, if the piston portion 62b is displaced into the jig body 62a by driving and controlling the piston portion 62b, the contact portions 62c are pushed toward the rail 55 side, whereby the rails 55 are clamped by the contact portions 62c and fixed. That is, when the linear jig 62 is operated at a specific position on the rail 55, the displacement of the holding frame portion 40 in the raising and lowering direction is restricted, and the holding frame portion 40 is rigidly fixed at this position. Thereby, the rigidity of the holding frame portion 40 and the base portion 31 b can be further improved, and the occurrence of vibration can be suppressed more effectively than in the case where only the supporting portion 50 is strengthened. In this embodiment, the displacement restriction mechanism 60 operates while the substrate is being held. In other words, during the loading and unloading operations of the substrate W, it is arranged at a position where the holding frame portion 40 is lowered, and the displacement regulating mechanism 60 is not operated. When the substrate W is placed on the levitation platform portion 10, the holding frame portion 40 is raised, and the suction portion 41 abuts against the back surface of the substrate W to suck the substrate W. When the holding posture of the substrate W becomes stable, the displacement restricting mechanism 60 operates to rigidly fix the position of the holding frame portion 40. According to the substrate suspension conveying device of the above-mentioned embodiment, the reinforcing support portion 50 is provided separately from the lifting portion 42, so that the physical properties of the base portion 31 b and the holding frame portion 40 can be strengthened. That is, since all the suction portions 41 are mounted on the holding frame portion 40, if the base portion 31b of the transport driving portion 31 moves, the holding frame portion 40 is liable to generate slight vibrations due to mounting accuracy, dead weight, and the like. This vibration, for example, causes coating unevenness to occur on the coating film formed on the substrate W when the coating process is performed. However, the substrate can be made base by separately providing a reinforcing support portion 50 separately from the lifting portion 42. The rigidity of the portion 31b and the holding frame portion 40 is increased, vibrations generated during transportation can be suppressed, and effects of vibrations can be suppressed when substrate processing such as coating processing is performed. Furthermore, in the above-mentioned embodiment, the case where the linear gripper 62 is used in the displacement restriction mechanism 60 has been described, but as shown in FIG. 8, a link-type gripper 63 may be used. Specifically, it is formed by a pillar portion 64 that is fixed to the base portion 31 b immediately below the suction portion 41 and a link-type clamp 63 provided on the pillar portion 64. The link-type clamp 63 is subjected to air pressure. When the lever portion 63a is controlled to rotate, the holding frame portion 40 can be locked. That is, the rod portion 63a of the link-type clamp 63 is formed to be able to contact / detach from the holding frame portion 40 according to the action of the piston 63b, and the holding frame is supported by the front end of the rod portion 63a supporting the lower end of the holding frame portion 40 The position of the portion 40 is rigidly fixed. In this embodiment, when the holding frame portion 40 reaches the height position during substrate holding, the rod portion 63a is rotated by pressing the rod portion 63a with the piston 63b, and the front end of the rod portion 63a supports the lower end of the holding frame portion 40. Even with such a displacement restricting mechanism 60, the rigidity of the holding frame portion 40 and the base portion 31b can be further increased, and the occurrence of vibration can be suppressed more effectively than when only the supporting portion 50 is strengthened. In the above-mentioned embodiment, an example in which the displacement restricting mechanism 60 is provided has been described. However, the configuration may be such that only the support portion 50 is strengthened without providing the displacement restricting mechanism 60. For example, only linear motion guides (rail members) such as linear guides 52 and ball screws are used as the reinforcing support portion 50, and the relative movement of the holding frame portion 40 and the base portion 31b is performed by connecting the holding frame portion 40 and the base portion 31b. It is limited to only one specific direction, and the displacement in a direction other than a specific direction is restricted. Thereby, the connection between the holding frame portion 40 and the base portion 31 b can suppress the occurrence of vibration compared to the case where only the lifting portion 42 is provided. Moreover, in the said embodiment, the example which used the rail member as the reinforcement support part 50 was demonstrated. The reinforcement support part 50 may have the spring part 70, and the holding frame may be strengthened by the restoring force of this spring part 70 The joint of the part 40 and the base part 31b. For example, as shown in FIG. 9, the reinforcing support portion 50 is formed of a rod-shaped shaft body 71 and a spring portion 70 provided on the shaft body 71. The spring portion 70 is provided by being contracted by a certain amount in a state where the holding frame portion 40 is located at a height position during substrate holding. With this, when the holding frame portion 40 is holding the substrate, the restoring force of the spring portion 70 acts in the direction of reinforcing the connection between the holding frame portion 40 and the base portion 31b, so compared with the case of only the lifting portion 42 The rigidity of the holding frame portion 40 and the base portion 31b can be improved, and the occurrence of vibration can be suppressed. Moreover, in the said embodiment, the example which provided the position where the reinforcement support part 50 was provided in all the positions where the adsorption | suction part 41 was provided (position immediately below the adsorption | suction part 41) was demonstrated, However, You may provide adsorption by itself The position of the portion 41 is appropriately selected and arranged. In addition, the reinforcing support portion 50 may be provided at a position other than the position where the suction portion 41 is provided, or may be located at a portion where the rigidity of the holding frame portion 40 and the base portion 31 b is relatively low, that is, at the holding frame portion. The central portion in the transport direction of 40 and the transport direction end portions of the holding frame portion 40 are appropriately dispersed and arranged. Moreover, in the said embodiment, the example which combined the board | substrate W suspension conveyance apparatus and the coating apparatus was demonstrated, However, The board | substrate W suspension conveyance apparatus can be combined with various substrate processing apparatuses, such as an exposure machine, an inspection apparatus, and a marking apparatus. In addition, by suppressing the occurrence of vibration during the transportation of the substrate W, it is possible to suppress the influence of the vibration on the substrate processing as much as possible.

1‧‧‧基板懸浮搬送裝置
2‧‧‧塗佈裝置
3‧‧‧基板搬送單元
10‧‧‧懸浮平台部
11‧‧‧基台
12‧‧‧平板部
12a‧‧‧基板懸浮面
21‧‧‧塗佈單元
22‧‧‧框部
22a‧‧‧支柱
23‧‧‧金屬卡口部
23a‧‧‧狹縫噴嘴
30‧‧‧基板保持部
31‧‧‧搬送驅動部
31a‧‧‧搬送導軌部
31b‧‧‧基底部
31c‧‧‧基台
33‧‧‧吸附面
34‧‧‧開口部
35‧‧‧吸附墊
40‧‧‧保持框部
41‧‧‧吸附部
42‧‧‧升降部
43‧‧‧區塊
43a‧‧‧區塊
43b‧‧‧區塊
45‧‧‧致動器
50‧‧‧強化支持部
51‧‧‧支持本體部
52‧‧‧線性導軌
53‧‧‧安裝面
54‧‧‧螺栓
55‧‧‧軌道
56‧‧‧區塊
60‧‧‧變位限制機構
62‧‧‧線性夾具
62a‧‧‧夾具本體
62b‧‧‧活塞部
62c‧‧‧接觸部
63‧‧‧連桿式夾具
63a‧‧‧桿部
63b‧‧‧活塞
64‧‧‧支柱部
70‧‧‧彈簧部
71‧‧‧軸本體
100‧‧‧懸浮平台部
102‧‧‧基板保持單元
103‧‧‧搬送驅動部
104‧‧‧吸附部
105‧‧‧升降機構
106‧‧‧基板處理部
T‧‧‧突出區域
W‧‧‧基板1‧‧‧ substrate suspension conveying device
2‧‧‧ coating device
3‧‧‧ substrate transfer unit
10‧‧‧ Suspended Platform Department
11‧‧‧ abutment
12‧‧‧ Flat Department
12a‧‧‧ substrate suspension surface
21‧‧‧coating unit
22‧‧‧Frame
22a‧‧‧ Pillar
23‧‧‧ metal bayonet
23a‧‧‧Slit nozzle
30‧‧‧ substrate holding section
31‧‧‧Transportation drive unit
31a‧‧‧Conveying rail section
31b‧‧‧base
31c‧‧‧Abutment
33‧‧‧ Adsorption surface
34‧‧‧ opening
35‧‧‧Adsorption pad
40‧‧‧ holding frame
41‧‧‧ Adsorption Department
42‧‧‧ Lifting Department
43‧‧‧block
43a‧‧‧block
43b‧‧‧block
45‧‧‧Actuator
50‧‧‧ Enhanced Support Department
51‧‧‧Support the main body
52‧‧‧ linear guide
53‧‧‧mounting surface
54‧‧‧ Bolt
55‧‧‧ track
56‧‧‧block
60‧‧‧Restriction mechanism
62‧‧‧Linear fixture
62a‧‧‧fixture body
62b‧‧‧Piston
62c‧‧‧Contact
63‧‧‧ connecting rod clamp
63a‧‧‧ lever
63b‧‧‧Piston
64‧‧‧ Pillar
70‧‧‧ spring section
71‧‧‧shaft body
100‧‧‧ Suspended Platform Department
102‧‧‧ substrate holding unit
103‧‧‧Transportation drive unit
104‧‧‧Adsorption Department
105‧‧‧Lifting mechanism
106‧‧‧Substrate Processing Department
T‧‧‧ prominent area
W‧‧‧ substrate

圖1係概略地表示與本發明之基板懸浮搬送裝置組合之塗佈裝置之立體圖。圖2係於搬送方向上觀察與上述實施形態之基板懸浮搬送裝置組合之塗佈裝置之圖。圖3係表示於上述實施形態中保持有懸浮之基板之狀態之圖。圖4係於Y軸方向上觀察上述實施形態之基板保持單元之圖。圖5係表示上述實施形態之基板懸浮搬送裝置之基板保持部之吸附墊之圖，(a)係表示吸附之前之狀態之圖，(b)係表示已吸附之狀態之圖。圖6係表示上述實施形態之基板懸浮搬送裝置之升降部之圖，(a)係表示下降至未保持基板之高度位置之狀態之圖，(b)係表示上升至保持基板之高度位置之狀態之圖。圖7係表示上述實施形態之基板懸浮搬送裝置之強化支持部之圖，(a)係於搬送方向上觀察強化支持部之圖，(b)係自懸浮平台部側觀察強化支持部之圖。圖8係表示另一實施形態之基板懸浮搬送裝置之強化支持部之圖，(a)係表示將連桿式夾具鎖定之前之狀態之圖，(b)係表示將連桿式夾具鎖定後之狀態之圖。圖9係表示又一實施形態之基板懸浮搬送裝置之強化支持部之圖，(a)係表示下降至未保持基板之高度位置之狀態之圖，(b)係表示上升至保持基板之高度位置之狀態之圖。圖10係表示先前之基板懸浮搬送裝置之一實施形態之概略立體圖。圖11係於Y軸方向上觀察先前之基板保持單元之圖，(a)係表示下降至未保持基板之高度位置之狀態之圖，(b)係表示上升至保持基板之高度位置之狀態之圖。FIG. 1 is a perspective view schematically showing a coating apparatus combined with a substrate suspension conveying apparatus of the present invention. FIG. 2 is a view of a coating device combined with the substrate suspension conveying device of the above embodiment in the conveying direction. FIG. 3 is a diagram showing a state where a floating substrate is held in the above embodiment. FIG. 4 is a view of the substrate holding unit according to the embodiment as viewed in the Y-axis direction. FIG. 5 is a diagram showing an adsorption pad of a substrate holding portion of the substrate suspension conveyance device of the above embodiment, (a) is a diagram showing a state before adsorption, and (b) is a diagram showing a state before adsorption. FIG. 6 is a diagram showing the lifting portion of the substrate suspension conveying device of the above embodiment, (a) is a diagram showing a state of descending to a height position where the substrate is not held, and (b) is a diagram showing a state of rising to a height position where the substrate is held Figure. FIG. 7 is a diagram showing a reinforced support section of the substrate suspension conveying device of the above embodiment, (a) is a diagram of the reinforced support section viewed in the conveying direction, and (b) is a diagram of the reinforced support section viewed from the suspension platform section side. FIG. 8 is a view showing a reinforced support section of a substrate suspension conveying device according to another embodiment, (a) is a view showing a state before the link type clamp is locked, and (b) is a view after the link type clamp is locked State diagram. FIG. 9 is a diagram showing a reinforced support portion of a substrate suspension conveying device according to another embodiment, (a) is a diagram showing a state of descending to a height position where a substrate is not held, and (b) is a diagram showing an ascent to a height position of a holding substrate Diagram of the state. FIG. 10 is a schematic perspective view showing an embodiment of a conventional substrate suspension transfer apparatus. FIG. 11 is a view of the previous substrate holding unit viewed in the Y-axis direction, (a) is a view showing a state of descending to a height position of an unsupported substrate, and (b) is a view showing a state of rising to a height position of a holding substrate Illustration.

30‧‧‧基板保持部 30‧‧‧ substrate holding section

31a‧‧‧搬送導軌部 31a‧‧‧Conveying rail section

31b‧‧‧基底部 31b‧‧‧base

40‧‧‧保持框部 40‧‧‧ holding frame

41‧‧‧吸附部 41‧‧‧ Adsorption Department

42‧‧‧升降部 42‧‧‧ Lifting Department

50‧‧‧強化支持部 50‧‧‧ Enhanced Support Department

W‧‧‧基板 W‧‧‧ substrate

Claims

A substrate suspension conveying device, comprising: a suspension platform that suspends a substrate; a substrate holding unit that holds a substrate suspended by the suspension platform; and a transfer driving unit that holds the substrate by the substrate holding unit. In the state, the substrate holding unit is moved to move the substrate in the conveying direction; and the substrate holding unit has a plurality of suction sections that suck the substrate, and all the suction sections are mounted in a state of being arranged in the conveying direction. The holding frame portion is provided on the conveyance driving portion via a lifting portion, and is formed to move the holding frame portion by moving the lifting portion, so that all the suction portions are relative to the substrate. Perform the connection / disconnection operation.

For example, the substrate suspension conveying device of claim 1, wherein the conveyance driving unit has a base portion that moves along the suspension platform, the base portion and the holding frame portion are connected by the lifting portion, and are separately provided with the lifting portion. A reinforcing support portion that strengthens the connection between the base portion and the holding frame portion.

For example, the substrate suspension transfer device of claim 2, wherein the reinforced support section has a guide member that allows displacement in only a specific direction, and the base member and the holding frame portion are connected by the guide member.

For example, the substrate suspension transfer device of claim 2 or 3, wherein the enhanced support portion is arranged in a transfer direction at a position where the suction portion is provided.

For example, the substrate suspension transfer device according to claim 2, wherein the reinforced support section is arranged at all positions where the suction section is provided.

For example, the substrate suspension conveying device of claim 2, wherein the strengthening support portion is provided with a spring portion that performs a telescoping operation according to the lifting movement of the holding frame, and the base portion and the holding portion are held by the return force of the spring portion The link of the frame is strengthened.

For example, the substrate suspension conveying device of claim 2, wherein the strengthening support section is provided with a displacement restricting mechanism that restricts the displacement of the holding frame in the upward and downward directions.

For example, the substrate suspension conveying device of claim 7, wherein the above-mentioned displacement limiting mechanism is formed by restraining the displacement of the holding frame on the guide rail from being moved up and down.