JP2005343639A - Substrate conveyance device and conveyance method - Google Patents

Substrate conveyance device and conveyance method Download PDF

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JP2005343639A
JP2005343639A JP2004165846A JP2004165846A JP2005343639A JP 2005343639 A JP2005343639 A JP 2005343639A JP 2004165846 A JP2004165846 A JP 2004165846A JP 2004165846 A JP2004165846 A JP 2004165846A JP 2005343639 A JP2005343639 A JP 2005343639A
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substrate
carry
conveyor
unit
angle
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JP4485853B2 (en
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Yukinobu Nishibe
幸伸 西部
Akinori Iso
明典 磯
Akira Hara
暁 原
Yoichi Fuse
陽一 布施
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Shibaura Mechatronics Corp
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Shibaura Mechatronics Corp
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Priority to TW094116722A priority patent/TWI359472B/en
Priority to KR1020050047229A priority patent/KR101160534B1/en
Priority to CNB2005100748988A priority patent/CN100470754C/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
    • H01L21/67745—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber characterized by movements or sequence of movements of transfer devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
    • B65G49/068—Stacking or destacking devices; Means for preventing damage to stacked sheets, e.g. spaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/67005—Apparatus not specifically provided for elsewhere
    • H01L21/67242—Apparatus for monitoring, sorting or marking
    • H01L21/67271—Sorting devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/67005—Apparatus not specifically provided for elsewhere
    • H01L21/67242—Apparatus for monitoring, sorting or marking
    • H01L21/67276—Production flow monitoring, e.g. for increasing throughput
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/67712—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations the substrate being handled substantially vertically
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/67718—Changing orientation of the substrate, e.g. from a horizontal position to a vertical position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67763—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
    • H01L21/67778—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading involving loading and unloading of wafers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Liquid Crystal (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Intermediate Stations On Conveyors (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a substrate conveyance device capable of efficiently transferring a substrate to a processing chamber when processing the substrate in the processing chamber by inclining the substrate. <P>SOLUTION: This substrate conveyance device is provided with a carrying-in transfer part 3 for inclining the substrate fed in a horizontal condition at a predetermined inclination angle to transfer it to the processing chamber 6, an inclination conveyance part 4 for receiving the substrate inclined at the predetermined angle in the carrying-in transfer part to convey it in a processing part at the inclination angle, and a carrying-out transfer part 5 for receiving the substrate conveyed in the processing part chamber at the predetermined inclination angle and processed from the inclination conveyance part and returning it into a horizontal condition. At least either of the carrying-in transfer part and the carrying-out transfer part is constituted by first and second carrying-in or carrying-out conveyors 31 to 34 which are sequentially arranged along the direction of conveyance of the substrate and can set inclination angle of the substrate separately and whose length is set to be shorter than length along the direction of conveyance of the substrate. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は処理部で処理液によって処理される基板を搬送するための搬送装置及び搬送方法に関する。   The present invention relates to a transport apparatus and a transport method for transporting a substrate processed by a processing liquid in a processing section.

液晶表示装置に用いられるガラス製の基板には回路パターンが形成される。基板に回路パターンを形成するにはリソグラフィープロセスが採用される。リソグラフィープロセスは周知のように上記基板にレジストを塗布し、このレジストに回路パターンが形成されたマスクを介して光を照射する。   A circuit pattern is formed on a glass substrate used in the liquid crystal display device. A lithographic process is employed to form a circuit pattern on the substrate. In a lithography process, as is well known, a resist is applied to the substrate, and light is irradiated through a mask having a circuit pattern formed on the resist.

つぎに、レジストの光が照射されない部分或いは光が照射された部分を除去し、基板のレジストが除去された部分をエッチングし、エッチング後にレジストを除去するなどの一連の工程を複数回繰り返すことで、上記基板に回路パターンを形成する。   Next, by repeating a series of steps such as removing a portion of the resist not irradiated with light or a portion irradiated with light, etching the portion of the substrate where the resist is removed, and removing the resist after etching, a plurality of times. Then, a circuit pattern is formed on the substrate.

このようなリソグラフィープロセスにおいては、上記基板に現像液、エッチング液或いはエッチング後にレジストを除去する剥離液などの処理液としての薬液によって基板を処理する工程、さらに薬液による処理後に処理液としての洗浄液によって洗浄する工程などがあり、洗浄後には基板に付着残留した洗浄液を除去する乾燥工程が必要となる。   In such a lithography process, the substrate is treated with a chemical solution as a processing solution such as a developing solution, an etching solution or a stripping solution for removing the resist after etching, and further after a treatment with the chemical solution, a cleaning solution as a processing solution is used. There is a cleaning process, and after the cleaning, a drying process is necessary to remove the cleaning liquid remaining on the substrate.

基板に対して上述した一連の処理を行う場合、上記基板は軸線を水平にして配置された搬送ローラによって水平な状態で処理部に搬送し、そこで処理液によって処理するようにしている。   When the above-described series of processing is performed on the substrate, the substrate is transported to the processing unit in a horizontal state by transport rollers arranged with the axis line horizontal, and is processed with the processing liquid there.

ところで、最近では液晶表示装置に用いられるガラス製の基板が大型化及び薄型化する傾向にある。そのため、基板を水平搬送すると、搬送ローラ間における基板の撓みが大きくなるため、各処理チャンバでの処理が基板の板面全体にわたって均一に行えなくなるということが生じる。しかも、基板の上面に多量の処理液が残留した状態で、基板が処理部から搬出されることになるため、処理液を回収して再利用する場合、処理液の消費量が多くなり、ランニングコストの上昇を招く一因になっていた。   Recently, glass substrates used in liquid crystal display devices tend to be larger and thinner. For this reason, when the substrate is horizontally transported, the bending of the substrate between the transport rollers becomes large, so that processing in each processing chamber cannot be performed uniformly over the entire plate surface of the substrate. Moreover, since the substrate is unloaded from the processing section with a large amount of processing liquid remaining on the upper surface of the substrate, when the processing liquid is recovered and reused, the consumption of the processing liquid increases and running It was one of the causes that led to an increase in cost.

そこで、最近では基板を所定の角度で傾斜させて搬送することで、基板の板面に供給された処理液を円滑に流れるようにしている。それによって、基板とともに処理部から持ち出される処理液の量を少なくしたり、基板の板面全体を均一に処理できるようにするということが行なわれている。   Therefore, recently, the processing liquid supplied to the plate surface of the substrate is made to flow smoothly by inclining and transporting the substrate at a predetermined angle. As a result, the amount of processing liquid taken out from the processing unit together with the substrate is reduced, or the entire plate surface of the substrate can be processed uniformly.

処理部で基板を傾斜させて搬送しながら処理する場合、水平な状態で搬送されてきた基板を所定の傾斜角度に傾斜させて処理部に供給する。そして、基板が処理部で処理されたならば、傾斜状態から水平に戻して次工程に受け渡すようにすることになる。   In the case where the substrate is processed while being inclined at the processing unit, the substrate transferred in a horizontal state is inclined at a predetermined inclination angle and supplied to the processing unit. And if a board | substrate is processed by the process part, it will return horizontally from an inclination state and will be passed to the following process.

従来、基板を傾斜させたり、傾斜した基板を水平に戻すためには、基板の長さ寸法よりも長尺で、傾斜角度の調整可能なコンベアを上記処理部の搬入側と搬出側とにそれぞれ１つずつ配置する。そして、搬入側においては、水平状態の搬入コンベアに基板が供給されたならば、この搬入コンベアを処理部に所定の傾斜角度で設けられた搬送コンベアの傾斜角度と同じ角度に傾斜させてから基板を処理部に受け渡すようにしている。   Conventionally, in order to incline a substrate or return an inclined substrate to a horizontal position, conveyors that are longer than the length of the substrate and can be adjusted in inclination angle are respectively provided on the carry-in side and the carry-out side of the processing unit. Place one by one. On the carry-in side, if the substrate is supplied to the carry-in conveyor in the horizontal state, the carry-in conveyor is inclined at the same angle as the carry conveyor provided at the processing unit at a predetermined inclination angle, and then the substrate is placed. Is transferred to the processing unit.

一方、搬出側では搬出コンベアを所定の傾斜角度で待機させておき、この搬出コンベアが処理部から搬出された基板を受けた後、水平に倒伏させることで、次工程に受け渡すということが行なわれている。   On the other hand, on the unloading side, the unloading conveyor is kept at a predetermined inclination angle, and after the unloading conveyor receives the substrate unloaded from the processing unit, it is horizontally lowered and transferred to the next process. It is.

しかしながら、搬入側と搬出側とにおいて、それぞれ１つのコンベアによって基板を所定の角度に傾斜させて処理部へ受け渡したり、処理部で処理された基板を受けて水平に戻すようにすると、搬入側においては少なくとも基板の長さ寸法の２分の１以上が処理部の搬送コンベアに受け渡されるまでは搬入側の搬入コンベアを水平に倒伏させてつぎの基板を受け取ることができない。そのため、搬入コンベアがつぎの基板を受けることが可能になるまでに要するタクトタイム、つまり受け渡しに要するタクトタイムが長くなるということが生じるということがある。   However, on the carry-in side and the carry-out side, when the substrate is inclined to a predetermined angle by one conveyor and delivered to the processing unit, or when the substrate processed by the processing unit is received and returned horizontally, Until at least one-half of the length of the substrate is transferred to the conveyor of the processing unit, the next substrate cannot be received by laying the carry-in conveyor horizontally. For this reason, the takt time required for the carry-in conveyor to receive the next substrate, that is, the takt time required for delivery may increase.

また、搬出側においては、搬出コンベアが処理部の搬送コンベアから基板を受けて水平に倒伏した後、搬出コンベアから基板全体が送り出されるまでは、この搬出コンベアを所定の傾斜角度に傾斜させてつぎの基板を受け取ることができないから、搬入側と同様、基板の受け渡しに要するタクトタイムが長くなるということが生じる。   On the carry-out side, after the carry-out conveyor receives the substrate from the transfer conveyor of the processing unit and falls down horizontally, the carry-out conveyor is inclined at a predetermined inclination angle until the entire substrate is sent out from the carry-out conveyor. Since the substrate cannot be received, the tact time required for the delivery of the substrate becomes longer as in the carry-in side.

この発明は、処理部において、基板を所定の角度で傾斜させて搬送する場合に、基板の受け渡しに要するタクトタイムを短縮することができるようにした基板の搬送装置及び搬送方法を提供することにある。   The present invention provides a substrate transport apparatus and a transport method capable of shortening the tact time required for delivering a substrate when the substrate is transported at a predetermined angle in the processing unit. is there.

この発明は、処理部で処理される基板を搬送する搬送装置であって、
水平な状態で送られてきた基板を所定の傾斜角度に傾斜させて上記処理部に受け渡す搬入受け渡し部と、
この搬入受け渡し部で所定の角度に傾斜された上記基板を受けてその傾斜角度で上記処理部内を搬送する傾斜搬送部と、
所定の傾斜角度で上記処理部内を搬送されて処理された基板を上記傾斜搬送部から受けて水平な状態に戻す搬出受け渡し部とを具備し、
上記搬入受け渡し部と搬出受け渡し部との少なくとも一方は、基板の搬送方向に沿って順次並設されているとともに、それぞれ別々に基板の傾斜角度の設定ができ、かつ長さ寸法が上記基板の搬送方向に沿う長さ寸法よりも短く設定された複数のコンベアによって構成された角度変換手段を備えていることを特徴とする基板の搬送装置にある。 The present invention is a transport device for transporting a substrate to be processed in a processing section,
A carry-in / delivery unit that inclines the substrate sent in a horizontal state to a predetermined inclination angle and delivers the substrate to the processing unit;
An inclined transport unit that receives the substrate tilted at a predetermined angle by the carry-in delivery unit and transports the inside of the processing unit at the tilt angle;
A loading / unloading unit that receives the substrate transported and processed in the processing unit at a predetermined tilt angle from the tilt transport unit and returns the substrate to a horizontal state;
At least one of the carry-in / delivery unit and the carry-out / delivery unit is arranged in parallel along the substrate conveyance direction, and the inclination angle of the substrate can be set separately, and the length dimension of the substrate conveyance unit The substrate transport apparatus includes an angle conversion means including a plurality of conveyors set to be shorter than a length dimension along the direction.

上記搬入受け渡し部の角度変換手段は、基板の搬送方向に沿って順次並設された第１の搬入コンベアと第２の搬入コンベアとによって構成されていて、第１、第２の搬入コンベアは水平状態で基板を受けて所定の角度に傾斜して基板を上記傾斜搬送部に搬送するとともに、基板の長さ寸法のほぼ半分が第１の搬入コンベアから外れた時点でこの第１の搬入コンベアはつぎの基板の受け渡しが可能な水平状態に倒伏させられることが好ましい。   The angle conversion means of the carry-in / deliver unit is configured by a first carry-in conveyor and a second carry-in conveyor that are sequentially arranged in parallel along the substrate carrying direction, and the first and second carry-in conveyors are horizontal. In this state, the substrate is received and inclined at a predetermined angle to convey the substrate to the inclined conveyance unit, and when approximately half of the length of the substrate is removed from the first carry-in conveyor, the first carry-in conveyor is It is preferable to fall down in a horizontal state where the substrate can be delivered.

上記搬出受け渡し部の角度変換手段は、基板の搬送方向に沿って順次並設された第１の搬出コンベアと第２の搬出コンベアとによって構成されていて、第１、第２の搬出コンベアは所定の角度で傾斜した状態で基板を受けて水平に倒伏してから基板を搬送するとともに、基板が第１の搬出コンベアから外れた時点でこの第１の搬入コンベアはつぎの基板の受け渡しが可能な傾斜状態に起立されることが好ましい。   The angle conversion means of the carry-out / delivery unit is composed of a first carry-out conveyor and a second carry-out conveyor that are sequentially arranged along the substrate conveyance direction, and the first and second carry-out conveyors are predetermined. The substrate is transported after receiving the substrate in a state of being inclined at an angle of 1, and then the substrate is transported, and when the substrate is detached from the first carry-out conveyor, the first carry-in conveyor is inclined so that the next substrate can be delivered. It is preferable to stand in the state.

この発明は、処理部で処理される基板を搬送する搬送方法であって、
水平な状態で送られてきた基板を上記処理部に搬入する搬入工程と、
上記処理部に搬入された基板を所定の傾斜角度に傾斜されて搬送する搬送工程と、
上記処理部で処理された基板を受ける搬出工程とを具備し、
上記搬入工程と搬出工程との少なくとも一方の工程は、基板の傾斜角度を変換する角度変換工程を備えていることを特徴とする基板の搬送方法にある。 The present invention is a transport method for transporting a substrate to be processed in a processing section,
A loading step of loading the substrate sent in a horizontal state into the processing unit;
A transporting step of transporting the substrate carried into the processing unit inclined at a predetermined inclination angle;
An unloading step of receiving a substrate processed by the processing unit,
At least one of the carry-in step and the carry-out step is a substrate transfer method comprising an angle conversion step for converting the tilt angle of the substrate.

上記搬入工程における角度変換工程は、基板を水平な状態で受ける第１の工程と、水平状態で受けた基板を傾斜させる第２の工程と、傾斜させた基板を上記処理部に受け渡すとともに上記第１の工程を同時に行う第３の工程とを具備したことが好ましい。   The angle conversion step in the carry-in step includes a first step for receiving the substrate in a horizontal state, a second step for inclining the substrate received in the horizontal state, and delivering the inclined substrate to the processing unit. It is preferable to include a third step for simultaneously performing the first step.

上記搬出工程における角度変換工程は、上記搬送工程から基板を傾斜した状態で受ける第１の工程と、傾斜状態で受けた基板を水平にする第２の工程と、水平にされた基板を搬出するとともに上記第１の工程を同時に行う第３の工程とを具備したことが好ましい。   The angle conversion step in the unloading step includes a first step of receiving the substrate in an inclined state from the transfer step, a second step of leveling the substrate received in the inclined state, and unloading the leveled substrate. And a third step of simultaneously performing the first step.

この発明よれば、搬入受け渡し部と搬出受け渡し部との少なくとも一方に、複数のコンベアによって構成された角度変換手段を設けるようにしたから、搬入受け渡し部では基板を傾斜させて処理部へ受け渡すと同時に、新たな基板を水平な状態で受けることができ、搬出受け渡し部では処理部から搬出された基板を水平な状態で搬出すると同時に、処理部で処理された基板を傾斜した状態で受けることができる。そのため、基板の処理部への搬入或いは処理部からの搬出などの受け渡しに要するタクトタイムを短縮することが可能となる。   According to the present invention, since at least one of the carry-in / delivery unit and the carry-out / delivery unit is provided with the angle conversion means constituted by a plurality of conveyors, the carry-in / delivery unit tilts the substrate and delivers it to the processing unit. At the same time, a new substrate can be received in a horizontal state, and the substrate carried out from the processing unit can be carried out in a horizontal state at the carry-out / delivery unit, and at the same time, the substrate processed in the processing unit can be received in an inclined state. it can. For this reason, it is possible to shorten the tact time required for delivery of the substrate into the processing unit or the delivery from the processing unit.

以下、この発明の実施の形態を図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１は基板Ｗの処理装置１の概略的構成を示し、この処理装置１にはこの発明の搬送装置２が用いられている。搬送装置２は搬入受け渡し部３と、傾斜搬送部４と、搬出受け渡し部５とによって構成されていて、上記傾斜搬送部４は基板Ｗをたとえばエッチング液などの処理液によって処理するための処理部としての処理チャンバ６内に設けられている。   FIG. 1 shows a schematic configuration of a processing apparatus 1 for a substrate W, and a transport apparatus 2 of the present invention is used for the processing apparatus 1. The transfer device 2 is constituted by a carry-in / delivery unit 3, an inclined transfer unit 4, and a carry-out / transfer unit 5, and the inclined transfer unit 4 is a processing unit for processing the substrate W with a processing solution such as an etching solution. Are provided in the processing chamber 6.

図２は上記処理チャンバ６の縦断面図である。この処理チャンバ６は基板Ｗの搬送方向に沿う一端面に鎖線で示す搬入口７が形成され、他端面に搬出口（図示せず）が形成されている。処理チャンバ６内には基板Ｗの搬送方向と交差する幅方向の両端部にそれぞれ受け部材８が設けられている。これら受け部材８には上記傾斜搬送部４が上記幅方向に対して所定の角度、たとえば５〜１５度の角度で傾斜して設けられている。   FIG. 2 is a longitudinal sectional view of the processing chamber 6. In the processing chamber 6, a carry-in port 7 indicated by a chain line is formed on one end surface along the transfer direction of the substrate W, and a carry-out port (not shown) is formed on the other end surface. In the processing chamber 6, receiving members 8 are provided at both ends in the width direction intersecting with the transport direction of the substrate W, respectively. These receiving members 8 are provided with the inclined conveying section 4 inclined at a predetermined angle, for example, an angle of 5 to 15 degrees with respect to the width direction.

上記傾斜搬送部４は上記受け部材８に幅方向の両端部が支持されるフレーム１１を有する。このフレーム１１の幅方向一端部は上記受け部材８に直接支持され、幅方向他端部は角度調整部材１０を介して支持されている。それによって、上記フレーム１１は上記幅方向に対して所定の角度、たとえば５〜１５度の範囲内の角度で傾斜している。なお、フレーム１１の傾斜角度は５〜１５度の範囲内に限定されず、それ以下であっても、それ以上であっても差し支えない。   The inclined transport unit 4 has a frame 11 on which both end portions in the width direction are supported by the receiving member 8. One end of the frame 11 in the width direction is directly supported by the receiving member 8, and the other end in the width direction is supported via the angle adjusting member 10. Accordingly, the frame 11 is inclined at a predetermined angle with respect to the width direction, for example, an angle within a range of 5 to 15 degrees. Note that the inclination angle of the frame 11 is not limited to the range of 5 to 15 degrees, and may be less than that or more than that.

上記フレーム１１には、フレーム１１の幅方向に軸線を沿わせた複数の搬送軸１２（１本のみ図示）が幅方向と交差する基板Ｗの搬送方向に沿って所定間隔で回転可能に設けられている。搬送軸１２には基板Ｗの下面を支持する複数の搬送ローラ１３が所定間隔で設けられている。したがって、搬送ローラ１３に下面が支持された基板Ｗはフレーム１１と同じ角度で傾斜して搬送される。   The frame 11 is provided with a plurality of transport shafts 12 (only one is shown) having an axis along the width direction of the frame 11 so as to be rotatable at predetermined intervals along the transport direction of the substrate W intersecting the width direction. ing. A plurality of transport rollers 13 that support the lower surface of the substrate W are provided on the transport shaft 12 at predetermined intervals. Accordingly, the substrate W having the lower surface supported by the transport roller 13 is transported with an inclination at the same angle as the frame 11.

上記フレーム１１の傾斜方向の上端側に位置する幅方向一側の外面には、伝達軸１４が軸線を基板Ｗの搬送方向に沿わせて回転可能に架設されている。この伝達軸１４の中途部には従動歯車１５が設けられている。この従動歯車１５には駆動歯車１６が噛合している。この駆動歯車１６は処理チャンバ６の外部に設けられた駆動源１７の出力軸１８に嵌着されている。   On the outer surface on one side in the width direction, which is located on the upper end side in the tilt direction of the frame 11, a transmission shaft 14 is installed so as to be rotatable along the axis of the substrate W in the conveyance direction. A driven gear 15 is provided in the middle of the transmission shaft 14. A driving gear 16 is engaged with the driven gear 15. The drive gear 16 is fitted on an output shaft 18 of a drive source 17 provided outside the processing chamber 6.

詳細は図示しないが、上記搬送軸１２の上記伝達軸１４側に位置する一端部には第１のかさ歯車が設けられている。第１のかさ歯車は上記搬送軸１２に設けられた第２のかさ歯車が噛合している。したがって、上記駆動源１７が作動して上記駆動歯車１６及び従動歯車１５を介して上記伝達軸１４が回転されれば、上記第１、第２のかさ歯車を介して上記搬送軸１２が回転駆動される。それによって、搬送ローラ１３に支持された基板Ｗが搬送されるようになっている。   Although not shown in detail, a first bevel gear is provided at one end of the transport shaft 12 located on the transmission shaft 14 side. The first bevel gear meshes with the second bevel gear provided on the conveying shaft 12. Therefore, when the drive source 17 is operated and the transmission shaft 14 is rotated via the drive gear 16 and the driven gear 15, the transport shaft 12 is rotationally driven via the first and second bevel gears. Is done. As a result, the substrate W supported by the transport roller 13 is transported.

なお、フレーム１１内には、搬送軸１２の傾斜方向下端部に対応する位置に基板Ｗの傾斜方向下端面、つまり搬送方向と交差する幅方向の一側面を支持するラジアルローラ１９が設けられている。   In the frame 11, a radial roller 19 that supports the lower end surface of the substrate W in the tilt direction, that is, one side surface in the width direction that intersects the transport direction, is provided at a position corresponding to the lower end portion of the transport shaft 12 in the tilt direction. Yes.

処理チャンバ６内を搬送される基板Ｗの上方には、基板Ｗの幅方向に沿う複数のシャワーパイプ２１（１つのみ図示）が基板Ｗの搬送方向に対して所定間隔で配置されている。各シャワーパイプ２１には複数のノズル２２が所定間隔で設けられている。上記シャワーパイプ２１はヘッダパイプ２３に連通管２４を介して接続されている。このヘッダパイプ２３はエッチング液などの処理液の供給源（図示しない）に連通している。それによって、処理チャンバ６内を搬送される基板Ｗの上面には上記ノズル２２から処理液が噴射されるようになっている。   Above the substrate W transported in the processing chamber 6, a plurality of shower pipes 21 (only one is shown) along the width direction of the substrate W are arranged at a predetermined interval with respect to the transport direction of the substrate W. Each shower pipe 21 is provided with a plurality of nozzles 22 at predetermined intervals. The shower pipe 21 is connected to the header pipe 23 via a communication pipe 24. The header pipe 23 communicates with a supply source (not shown) of a processing liquid such as an etching liquid. As a result, the processing liquid is ejected from the nozzle 22 onto the upper surface of the substrate W transported in the processing chamber 6.

上記処理チャンバ６の搬入側には上記搬入受け渡し部３が設けられ、搬出側には上記搬出受け渡し部５が設けられている。図１に示すように、搬入受け渡し部３は基板Ｗの搬送方向に沿って順次並設された第１の搬入コンベア３１と第２の搬入コンベア３２とによって構成され、搬出受け渡し部５は基板Ｗの搬送方向に沿って順次並設された第１の搬出コンベア３３と第２の搬出コンベア３４とによって構成されている。   The carry-in / delivery unit 3 is provided on the carry-in side of the processing chamber 6, and the carry-out / delivery unit 5 is provided on the carry-out side. As shown in FIG. 1, the carry-in / delivery unit 3 includes a first carry-in conveyor 31 and a second carry-in conveyor 32 that are sequentially arranged along the conveyance direction of the substrate W. The first carry-out conveyor 33 and the second carry-out conveyor 34 are sequentially arranged along the conveyance direction.

上記搬入受け渡し部３の上流側には搬入水平コンベア３ａが設けられ、上記搬出受け渡し部５の下流側には搬出水平コンベア５ａが設けられている。
なお、第１の搬入コンベア３１と第２の搬入コンベア３２及び第１の搬出コンベア３３と第２の搬出コンベア３４は、それぞれ基板Ｗの傾斜角度を変換する角度変換手段を構成している。 A carry-in horizontal conveyor 3 a is provided on the upstream side of the carry-in and transfer unit 3, and a carry-out horizontal conveyor 5 a is provided on the downstream side of the carry-out and transfer unit 5.
Note that the first carry-in conveyor 31, the second carry-in conveyor 32, the first carry-out conveyor 33, and the second carry-out conveyor 34 constitute angle conversion means for converting the inclination angle of the substrate W, respectively.

上記各コンベア３１〜３４は配置位置が異なるだけで、同じ構成になっていて、以下、図３と図４を参照しながら説明する。すなわち、上記コンベア３１〜３４は矩形枠状のフレーム３６を有する。このフレーム３６は上記処理チャンバ６内に設けられた傾斜搬送部４のフレーム１１と同じ幅寸法に設定されていて、その枠内の幅方向両端部には支持板３７が幅方向と直交する方向に沿って架設されている。なお、この実施の形態では、各コンベア３１〜３４のフレーム３６の基板Ｗの搬送方向に沿う長さ寸法は、この基板Ｗの長さ寸法よりも小さく、しかも基板Ｗの長さ寸法の約半分よりも長く設定されている。   Each of the conveyors 31 to 34 has the same configuration except for the arrangement position, and will be described below with reference to FIGS. 3 and 4. That is, the conveyors 31 to 34 have a rectangular frame 36. The frame 36 is set to have the same width dimension as the frame 11 of the inclined conveyance unit 4 provided in the processing chamber 6, and the support plates 37 are perpendicular to the width direction at both ends in the width direction in the frame. It is erected along. In this embodiment, the length dimension along the transport direction of the substrate W of the frame 36 of each of the conveyors 31 to 34 is smaller than the length dimension of the substrate W, and is about half of the length dimension of the substrate W. Is set longer than.

一対の支持板３７には両端部が軸受３８によって回転可能に支持された複数の搬送軸３９が所定間隔で架設されている。各搬送軸３９には軸方向に所定間隔で複数の搬送ローラ４１が設けられている。一方の支持板３７から突出した各搬送軸３９の一端部には第１のかさ歯車４２が設けられている。   A plurality of conveying shafts 39 whose both ends are rotatably supported by bearings 38 are installed on the pair of support plates 37 at predetermined intervals. Each transport shaft 39 is provided with a plurality of transport rollers 41 at predetermined intervals in the axial direction. A first bevel gear 42 is provided at one end of each conveyance shaft 39 protruding from one support plate 37.

上記フレーム３６の上記搬送軸３９の一端部側には、搬送軸３９の配置方向に沿って伝動軸４３が回転可能に支持されている。この伝達軸４３には上記第１のかさ歯車４２に噛合する第２のかさ歯車４４が設けられている。   A transmission shaft 43 is rotatably supported on one end side of the conveyance shaft 39 of the frame 36 along the arrangement direction of the conveyance shaft 39. The transmission shaft 43 is provided with a second bevel gear 44 that meshes with the first bevel gear 42.

上記伝達軸４３の軸方向中途部には従動プーリ４５が設けられている。上記フレーム３６の外側面で、上記従動プーリ４５に対応する部位には駆動源４６が設けられている。この駆動源４６の出力軸４７には駆動プーリ４８が設けられ、この駆動プーリ４８と上記従動プーリ４５とには図３に鎖線で示すチェーン４９が張設されている。   A driven pulley 45 is provided in the middle of the transmission shaft 43 in the axial direction. A drive source 46 is provided at a portion corresponding to the driven pulley 45 on the outer surface of the frame 36. A drive pulley 48 is provided on the output shaft 47 of the drive source 46, and a chain 49 indicated by a chain line in FIG. 3 is stretched between the drive pulley 48 and the driven pulley 45.

したがって、上記駆動源４６が作動すれば、駆動プーリ４８と従動プーリ４５に張設されたチェーン４９を介して上記伝達軸４３が回転駆動されるから、この伝達軸４３に設けられた第２のかさ歯車４４及びこの第２のかさ歯車４４に噛合した第１のかさ歯車４２を介して搬送軸３９が所定方向に回転駆動される。それによって、各搬送軸３９に設けられた搬送ローラ４１によって支持された基板Ｗが所定方向に搬送されることになる。   Therefore, when the drive source 46 is operated, the transmission shaft 43 is rotationally driven through the chain 49 stretched between the drive pulley 48 and the driven pulley 45. Therefore, the second shaft provided on the transmission shaft 43 The conveying shaft 39 is rotationally driven in a predetermined direction via the bevel gear 44 and the first bevel gear 42 meshed with the second bevel gear 44. As a result, the substrate W supported by the transport roller 41 provided on each transport shaft 39 is transported in a predetermined direction.

図４に示すように、上記フレーム３６の下面側には、このフレーム３６とほぼ同じ大きさの下部フレーム５１が連結部材５２によって所定の間隔で並行に離間して連結されている。   As shown in FIG. 4, a lower frame 51 having approximately the same size as the frame 36 is connected to the lower surface side of the frame 36 by a connecting member 52 so as to be spaced apart in parallel at a predetermined interval.

上記フレーム３６に設けられた搬送軸３９の軸方向中央部に対応する、下部フレーム５１の幅方向中央部であって、この幅方向と交差する方向の両端部にはそれぞれ支軸５３（一方のみ図示）が軸線を搬送軸３９の軸線と直交させて設けられている。   A center part in the width direction of the lower frame 51 corresponding to the center part in the axial direction of the conveying shaft 39 provided in the frame 36, and a support shaft 53 (only one of them is provided at both ends in the direction intersecting the width direction). (Shown) is provided with its axis orthogonal to the axis of the transport shaft 39.

上記搬入受け渡し部３及び搬出受け渡し部５を構成する架台５４の上面には支持部材５５が立設されている。この支持部材５５には上記支軸５３が回転可能に支持されている。それによって、上記フレーム３６は、架台５４の上面に、下部フレーム５１とともに搬送軸３９の軸方向である、基板Ｗの幅方向に沿って揺動可能となっている。   A support member 55 is erected on the upper surface of the gantry 54 that constitutes the carry-in / delivery unit 3 and the carry-out / delivery unit 5. The support shaft 53 is rotatably supported by the support member 55. Accordingly, the frame 36 can swing on the upper surface of the gantry 54 along the width direction of the substrate W which is the axial direction of the transport shaft 39 together with the lower frame 51.

上記架台５４には、上記下部フレーム５１の幅方向一端部に対応する部位に揺動機構を構成する駆動シリンダ５６が軸線を垂直にして設けられている。この駆動シリンダ５６の駆動軸５７の先端部はフレーム３６の幅方向と交差する方向に沿って長い取り付け板５８が設けられている。この取り付け板５８の両端部にはそれぞれローラ５９（一方のみ図示）が設けられている。一対のローラ５９は下部フレーム５１の幅方向一端部で、この幅方向と交差する方向の両端部に設けられた当接板６１に当接している。   The pedestal 54 is provided with a drive cylinder 56, which constitutes a swing mechanism, at a position corresponding to one end in the width direction of the lower frame 51 with the axis line vertical. A long attachment plate 58 is provided at the tip of the drive shaft 57 of the drive cylinder 56 along the direction intersecting the width direction of the frame 36. At both ends of the mounting plate 58, rollers 59 (only one is shown) are provided. The pair of rollers 59 are in contact with the contact plates 61 provided at both ends in the direction intersecting the width direction at one end in the width direction of the lower frame 51.

したがって、上記駆動シリンダ５６が作動してその駆動軸５７が突出方向に駆動されれば、ローラ５９が当接板６１を介して下部フレーム５１の幅方向一端部を押し上げるから、この下部フレーム５１とともに搬送ローラ４１が設けられたフレーム３６の幅方向一端部が上昇する。   Accordingly, when the drive cylinder 56 is operated and the drive shaft 57 is driven in the protruding direction, the roller 59 pushes up one end in the width direction of the lower frame 51 via the contact plate 61. One end in the width direction of the frame 36 provided with the transport roller 41 is raised.

つまり、フレーム３６は駆動シリンダ５６によって幅方向中心部を支点として幅方向一端部が他端部よりも高くなる方向に傾動するようになっている。フレーム３６の傾動角度は、上記処理チャンバ６に設けられた傾斜搬送部４のフレーム１１と同じ傾斜角度になるよう設定されている。なお、図４はフレーム３６が傾斜した状態を示している。   That is, the frame 36 is tilted by the drive cylinder 56 in a direction in which one end in the width direction is higher than the other end with the center in the width direction as a fulcrum. The tilt angle of the frame 36 is set to be the same tilt angle as that of the frame 11 of the tilt transfer unit 4 provided in the processing chamber 6. FIG. 4 shows a state in which the frame 36 is inclined.

つぎに、上記構成の搬送装置２が用いられた処理装置１によって基板Ｗを処理する場合について図５（ａ）〜（ｃ）と図６（ａ）〜（ｃ）を参照しながら説明する。   Next, a case where the substrate W is processed by the processing apparatus 1 using the transport apparatus 2 having the above configuration will be described with reference to FIGS. 5 (a) to 5 (c) and FIGS. 6 (a) to 6 (c).

未処理若しくは前工程で所定の処理がなされた基板Ｗは、図５（ａ）に示すように搬入水平コンベア３ａによって水平な状態で搬入受け渡し部３の第１の搬入コンベア３１上に供給される。このとき、搬入受け渡し部３の第１の搬入コンベア３１と第２の搬入コンベア３２とは水平で基板Ｗを受け取る。   The substrate W which has not been processed or has been subjected to a predetermined process in the previous process is supplied onto the first carry-in conveyor 31 of the carry-in / delivery unit 3 in a horizontal state by the carry-in horizontal conveyor 3a as shown in FIG. . At this time, the first carry-in conveyor 31 and the second carry-in conveyor 32 of the carry-in / delivery unit 3 receive the substrate W horizontally.

基板Ｗは第１の搬入コンベア３１によって第２の搬入コンベア３２の方向へ搬送される。図５（ｂ）に示すように基板Ｗの搬送方向に沿う長手方向の先端部が第２の搬入コンベア３２上に載ると、第１の搬入コンベア３１と第２の搬入コンベア３２とが駆動シリンダ５６によって処理チャンバ６内の傾斜搬送部４と同じ傾斜角度になるよう傾斜方向に駆動される。   The substrate W is transported in the direction of the second carry-in conveyor 32 by the first carry-in conveyor 31. As shown in FIG. 5B, when the front end in the longitudinal direction along the conveyance direction of the substrate W is placed on the second carry-in conveyor 32, the first carry-in conveyor 31 and the second carry-in conveyor 32 are driven cylinders. 56 is driven in the tilt direction so as to have the same tilt angle as that of the tilt transfer unit 4 in the processing chamber 6.

このとき、第１、第２の搬入コンベア３１，３２は基板Ｗを搬送しながら傾斜する。このとき、基板Ｗの後端部は水平搬入コンベア３ａ上にあるが、基板Ｗの長さの２分の１以上が第１、第２の搬入コンベア３１，３２上にあるため、これらコンベア３１，３２によって基板Ｗは傾斜される。   At this time, the first and second carry-in conveyors 31 and 32 are inclined while transporting the substrate W. At this time, the rear end portion of the substrate W is on the horizontal carry-in conveyor 3a, but more than one half of the length of the substrate W is on the first and second carry-in conveyors 31 and 32. , 32 tilt the substrate W.

図５（ｃ）に示すように、基板Ｗが傾斜した状態で第２の搬入コンベア３２上に搬送され、第１の搬入コンベア３１上に残る基板Ｗの長さ寸法が全長の２分の１以下になると、第１の搬入コンベア３１が駆動されて傾斜状態から水平状態に戻る。   As shown in FIG. 5C, the substrate W is conveyed onto the second carry-in conveyor 32 in an inclined state, and the length of the substrate W remaining on the first carry-in conveyor 31 is half of the total length. When it becomes below, the 1st carrying-in conveyor 31 will be driven and it will return to a horizontal state from an inclined state.

このとき、第１の搬入コンベア３１上に残る基板Ｗの長さ寸法が全長の約２分の１以下であるから、基板Ｗは第２の搬入コンベア３２によって確実に支持される。そのため、基板Ｗは第２の搬入コンベア３２と同じ角度で傾斜した傾斜搬送部４に確実に受け渡されることになる。   At this time, since the length dimension of the substrate W remaining on the first carry-in conveyor 31 is about one half or less of the total length, the substrate W is reliably supported by the second carry-in conveyor 32. Therefore, the substrate W is reliably delivered to the inclined transport unit 4 that is inclined at the same angle as the second carry-in conveyor 32.

つまり、第１の搬入コンベア３１上に基板Ｗの一部が残っている状態でこの第１の搬入コンベア３１が水平に倒伏しても、基板Ｗが第２の搬入コンベア３２から落下することなく傾斜搬送部４に搬送される。   That is, the substrate W does not fall from the second carry-in conveyor 32 even if the first carry-in conveyor 31 falls horizontally while a part of the substrate W remains on the first carry-in conveyor 31. It is conveyed to the inclined conveyance unit 4.

第１の搬入コンベア３１が水平に倒伏すると、つぎの基板Ｗが搬入水平コンベア３ａによって水平な状態で第１の搬入コンベア３１に供給され、この第１の搬入コンベア３１によって２枚目の基板Ｗが搬送される。それとほぼ同時、最初の基板Ｗが第２の搬入コンベア３２から傾斜搬送部４の搬送ローラ１３に受け渡され、この第２の搬入コンベア３２が傾斜状態から水平状態に駆動される。   When the first carry-in conveyor 31 falls horizontally, the next substrate W is supplied to the first carry-in conveyor 31 in a horizontal state by the carry-in horizontal conveyor 3a, and the second substrate W is fed by the first carry-in conveyor 31. Is transported. At substantially the same time, the first substrate W is transferred from the second carry-in conveyor 32 to the carry roller 13 of the inclined carry unit 4, and the second carry-in conveyor 32 is driven from the inclined state to the horizontal state.

そして、第２の搬入コンベア３２が第１の搬入コンベア３１によって水平な状態で搬送された２枚目の基板Ｗをこの第１の搬入コンベア３１とともに受けると、これら搬入コンベア３１，３２が水平状態から傾斜状態に駆動されて２枚目の基板Ｗを処理チャンバ６内へ搬送する一方、第１の搬入コンベア３２に残留する２枚目の基板Ｗの長さ寸法が２分の１以下になると、この第１の搬入コンベア３１が水平に倒伏し、このコンベア３１に３枚目の基板Ｗが供給されるという動作が繰り返される。   And when the 2nd board | substrate W conveyed with the 2nd carrying-in conveyor 32 in the horizontal state by the 1st carrying-in conveyor 31 with this 1st carrying-in conveyor 31, these carrying-in conveyors 31 and 32 are horizontal state. When the second substrate W is driven in an inclined state to convey the second substrate W into the processing chamber 6, while the length of the second substrate W remaining on the first carry-in conveyor 32 is less than half. The operation of the first carry-in conveyor 31 lying down horizontally and the third substrate W being supplied to the conveyor 31 is repeated.

このように、搬入受け渡し部３を、水平状態と傾斜状態との角度調整可能な第１の搬入コンベア３１と第２の搬入コンベア３２とで構成した。そのため、基板Ｗが水平に倒伏した第１、第２の搬入コンベア３１，３２上に供給されて搬送され、第１の搬入コンベア３１上に残る長さ寸法が２分の１以下になったならば、第２の搬入コンベア３２によって基板Ｗを傾斜した状態で搬送している間に、第１の搬入コンベア３１を水平に倒伏させてつぎの基板Ｗを水平な状態で受けることができる。   As described above, the carry-in / delivery unit 3 includes the first carry-in conveyor 31 and the second carry-in conveyor 32 that can adjust the angle between the horizontal state and the inclined state. Therefore, if the board | substrate W is supplied and conveyed on the 1st, 2nd carrying-in conveyors 31 and 32 which laid down horizontally, and the length dimension which remains on the 1st carrying-in conveyor 31 will become 1/2 or less. For example, while the substrate W is being conveyed in an inclined state by the second carry-in conveyor 32, the first carry-in conveyor 31 can be laid down horizontally to receive the next substrate W in a horizontal state.

つまり、搬入受け渡し部３は、その第１の搬入コンベア３１が基板Ｗを搬入水平コンベア３ａから水平な状態で受けながら、第２の搬入コンベア３２によって処理チャンバ６の傾斜搬送部４に受け渡すことができるから、基板の受け取りと受け渡しとを別々に行なう場合に比べてタクトタイムを短縮することができる。   That is, the carry-in / delivery unit 3 delivers the substrate W to the inclined conveyance unit 4 of the processing chamber 6 by the second carry-in conveyor 32 while the first carry-in conveyor 31 receives the substrate W from the carry-in horizontal conveyor 3a in a horizontal state. Therefore, the tact time can be shortened as compared with the case where the substrate is received and delivered separately.

処理チャンバ６内の傾斜搬送部４に受け渡された基板Ｗには、その上面にノズル２２から処理液が噴射供給される。基板Ｗの上面に供給された処理液は、基板Ｗが所定の角度で傾斜して搬送されているため、幅方向の上端から下端に向かって所定の速度で円滑に流れることになる。そのため、基板Ｗの上面に処理液が残留し難いばかりか、処理液が所定方向に沿って流れることで、処理速度が向上するばかりか、処理の均一性も向上することになる。   The processing liquid is jetted and supplied from the nozzle 22 onto the upper surface of the substrate W transferred to the inclined transfer unit 4 in the processing chamber 6. The processing liquid supplied to the upper surface of the substrate W smoothly flows at a predetermined speed from the upper end to the lower end in the width direction because the substrate W is transported while being inclined at a predetermined angle. Therefore, not only does the processing liquid hardly remain on the upper surface of the substrate W, but the processing liquid flows along a predetermined direction, so that not only the processing speed is improved, but also the processing uniformity is improved.

このようにして処理チャンバ６内で処理されて傾斜搬送部４によって搬送された基板Ｗは搬出受け渡し部５に受け渡されて次工程に搬送される。基板Ｗを傾斜搬送部４から搬出受け渡し部５に受け渡すにはつぎのように行なわれる。すなわち、搬出受け渡し部５の第１の搬出コンベア３３と第２の搬出コンベア３４とは傾斜搬送部４と同じ傾斜角度で傾斜して処理チャンバ６で処理された基板Ｗが搬出されるのを待機している。   Thus, the substrate W processed in the processing chamber 6 and transferred by the inclined transfer unit 4 is transferred to the carry-out transfer unit 5 and transferred to the next process. The transfer of the substrate W from the inclined transfer unit 4 to the carry-out transfer unit 5 is performed as follows. That is, the first unloading conveyor 33 and the second unloading conveyor 34 of the unloading / passing unit 5 are inclined at the same inclination angle as the inclined transfer unit 4 and wait for the substrate W processed in the processing chamber 6 to be unloaded. doing.

処理チャンバ６内で処理された基板Ｗは図６（ａ）に示すように傾斜した状態で第１の搬出コンベア３３に受け渡され、この第１の搬出コンベア３３から第２の搬出コンベア３４へと搬送される。図６（ｂ）に示すように、基板Ｗが傾斜搬送部４から搬出されて第１、第２の搬出コンベア３３，３４上に搬送されると、これら第１、第２の搬出コンベア３３，３４は傾斜状態から水平状態に駆動される。そして、基板Ｗは水平な状態で第１、第２の搬出コンベア３３，３４上を搬送される。   The substrate W processed in the processing chamber 6 is transferred to the first carry-out conveyor 33 in an inclined state as shown in FIG. 6A, and is transferred from the first carry-out conveyor 33 to the second carry-out conveyor 34. It is conveyed. As shown in FIG. 6B, when the substrate W is unloaded from the inclined conveyance unit 4 and conveyed onto the first and second unloading conveyors 33, 34, the first and second unloading conveyors 33, 34 is driven from the inclined state to the horizontal state. Then, the substrate W is transported on the first and second carry-out conveyors 33 and 34 in a horizontal state.

図６（ｃ）に示すように、基板Ｗの後端が第１の搬出コンベア３３から外れると、この第１の搬出コンベア３３は水平状態から傾斜状態に駆動される。そして、上記傾斜搬送部４によって処理チャンバ６から所定の傾斜角度で搬出されてくるつぎの基板Ｗを受ける。   As shown in FIG. 6C, when the rear end of the substrate W is detached from the first carry-out conveyor 33, the first carry-out conveyor 33 is driven from the horizontal state to the inclined state. Then, the next substrate W carried out from the processing chamber 6 at a predetermined inclination angle is received by the inclined conveyance section 4.

第１の搬出コンベア３３がつぎの基板Ｗを受ける間に、基板Ｗは第２の搬出コンベア３４から搬出水平コンベア５ａに受け渡されて搬出される。基板Ｗを搬出水平コンベア５ａに受け渡すと、第２の搬出コンベア３４は水平状態から、第１の搬出コンベア３３と同じ傾斜角度に駆動される。   While the first carry-out conveyor 33 receives the next substrate W, the substrate W is transferred from the second carry-out conveyor 34 to the carry-out horizontal conveyor 5a and carried out. When the substrate W is transferred to the carry-out horizontal conveyor 5a, the second carry-out conveyor 34 is driven from the horizontal state at the same inclination angle as the first carry-out conveyor 33.

それによって、傾斜搬送部４から搬出されたつぎの基板Ｗは、第１の搬出コンベア３３と第２の搬出コンベア３４とによって所定の傾斜角度で傾斜して搬出され、後端が傾斜搬送部４から外れると、これら搬出コンベア３３，３４が傾斜状態から水平状態に倒伏する。   As a result, the next substrate W carried out from the inclined conveyance unit 4 is carried out at a predetermined inclination angle by the first carry-out conveyor 33 and the second carry-out conveyor 34, and the rear end thereof is carried out by the inclined conveyance unit 4. When it comes off, these carry-out conveyors 33 and 34 fall from the inclined state to the horizontal state.

そして、基板Ｗの後端が第１の搬出コンベア３３から外れると、この第１のコンベア３３が水平状態から傾斜状態に駆動されて処理チャンバ６から搬出されてくる基板Ｗを受けるということが繰り返される。   When the rear end of the substrate W is detached from the first carry-out conveyor 33, the first conveyor 33 is driven from the horizontal state to the inclined state and receives the substrate W carried out from the processing chamber 6 repeatedly. It is.

このように、搬出受け渡し部５を、第１の搬出コンベア３３と第２の搬出コンベア３４とで構成したことで、第２の搬出コンベア３４が水平に倒伏した状態で、基板Ｗを搬出水平コンベア５ａに受け渡している間に、第１の搬出コンベア３３を傾斜させて処理チャンバ６の傾斜搬送部４によって搬出される基板Ｗを受けることができる。   As described above, the carry-out delivery unit 5 is configured by the first carry-out conveyor 33 and the second carry-out conveyor 34, so that the substrate W is carried out with the second carry-out conveyor 34 lying down horizontally. While delivering to 5a, the board | substrate W carried out by the inclination conveyance part 4 of the process chamber 6 can be received by making the 1st carrying-out conveyor 33 incline.

つまり、搬出受け渡し部５は処理チャンバ６から搬出される基板Ｗを第１の搬出コンベア３３によって受けながら、第２の搬出コンベア３４によって水平搬出コンベア５ａへ受け渡すことができるから、傾斜搬送部４からの基板Ｗの受け取りと搬出水平コンベア３４への受け渡しとを別々に行なう場合に比べてタクトタイムを短縮することができる。   That is, the carry-out / delivery unit 5 can deliver the substrate W carried out of the processing chamber 6 to the horizontal carry-out conveyor 5a by the second carry-out conveyor 34 while receiving the substrate W by the first carry-out conveyor 33. The tact time can be shortened as compared with the case where the reception of the substrate W from the substrate and the delivery to the carry-out horizontal conveyor 34 are performed separately.

なお、上記一実施の形態では処理チャンバ６の搬入側と搬出側とに、それぞれ水平状態と所定の傾斜角度に起立させることができる２つのコンベアを並設したが、搬入側と搬出側とのどちらか一方だけに２つのコンベアを設けるようにしてもよい。それであっても、処理チャンバで基板を傾斜させて処理する場合に、基板の受け渡しに要するタクトタイムを短縮することができる。   In the above-described embodiment, two conveyors that can stand up in a horizontal state and at a predetermined inclination angle are arranged in parallel on the carry-in side and the carry-out side of the processing chamber 6, respectively. You may make it provide two conveyors only in either one. Even so, when the substrate is processed while being inclined in the processing chamber, the tact time required for delivery of the substrate can be shortened.

また、搬入受け渡し部と搬出受け渡し部とを構成するコンベアの数は２つに限られず、３つ或いはそれ以上であっても差し支えない。   Further, the number of conveyors constituting the carry-in / delivery unit and the carry-out / delivery unit is not limited to two, and may be three or more.

また、搬入受け渡し部の上流側と搬出受け渡し部の下流側とに水平コンベアを設けて基板の受け渡しを行なうようにしたが、水平コンベアに代わりロボットなどで行なうようにしてもよい。   Further, although a horizontal conveyor is provided on the upstream side of the carry-in / delivery unit and the downstream side of the carry-out / delivery unit, the substrate is delivered, but it may be carried out by a robot or the like instead of the horizontal conveyor.

また、第１、第２の搬入及び搬出コンベアを水平状態と傾斜状態との間で駆動するために、これらコンベアはフレームの幅方向の中央部分を支点として架台に回動可能に支持するようにしたが、フレームは幅方向他端を架台に開度塚脳に支持し、幅方向の一端を駆動シリンダで駆動する揺動させる構成であってもよく、要は各コンベアが基板の搬送方向と交差する幅方向に沿って揺動できる構成であればよい。   Further, in order to drive the first and second carry-in and carry-out conveyors between the horizontal state and the inclined state, these conveyors are rotatably supported on the gantry with the central portion in the width direction of the frame as a fulcrum. However, the frame may be configured such that the other end in the width direction is supported by the opening degree mound with the gantry and the one end in the width direction is swung by a drive cylinder. Any structure that can swing along the intersecting width direction may be used.

この発明の一実施の形態を示す処理装置の概略的説明図。BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing of the processing apparatus which shows one embodiment of this invention. 処理チャンバの縦断面図。The longitudinal cross-sectional view of a processing chamber. 搬入側と搬出側とに設けられるコンベアの平面図。The top view of the conveyor provided in a carrying-in side and a carrying-out side. 図３に示すコンベアの幅方向一側から見た側面図。The side view seen from the width direction one side of the conveyor shown in FIG. 搬入受け渡し部における基板の受け渡しの説明図。Explanatory drawing of the delivery of the board | substrate in a carrying-in delivery part. 搬出受け渡し部における基板の受け渡しの説明図。Explanatory drawing of the delivery of the board | substrate in a carry-out delivery part.

符号の説明Explanation of symbols

３…搬入受け渡し部、４…傾斜搬送部、５…搬出受け渡し部、６…処理チャンバ、３１…第１の搬入コンベア、３２…第２の搬入コンベア、３３…第１の搬出コンベア、３４…第２の搬出コンベア、５６…駆動シリンダ。   DESCRIPTION OF SYMBOLS 3 ... Carry-in delivery part, 4 ... Inclined conveyance part, 5 ... Carry-out delivery part, 6 ... Processing chamber, 31 ... 1st carry-in conveyor, 32 ... 2nd carry-in conveyor, 33 ... 1st carry-out conveyor, 34 ... 1st 2 carry-out conveyors, 56... Drive cylinder.

Claims (6)

処理部で処理される基板を搬送する搬送装置であって、
水平な状態で送られてきた基板を所定の傾斜角度に傾斜させて上記処理部に受け渡す搬入受け渡し部と、
この搬入受け渡し部で所定の角度に傾斜された上記基板を受けてその傾斜角度で上記処理部内を搬送する傾斜搬送部と、
所定の傾斜角度で上記処理部内を搬送されて処理された基板を上記傾斜搬送部から受けて水平な状態に戻す搬出受け渡し部とを具備し、
上記搬入受け渡し部と搬出受け渡し部との少なくとも一方は、基板の搬送方向に沿って順次並設されているとともに、それぞれ別々に基板の傾斜角度の設定ができ、かつ長さ寸法が上記基板の搬送方向に沿う長さ寸法よりも短く設定された複数のコンベアによって構成された角度変換手段を備えていることを特徴とする基板の搬送装置。 A transport device for transporting a substrate to be processed in a processing unit,
A carry-in / delivery unit that inclines the substrate sent in a horizontal state to a predetermined inclination angle and delivers the substrate to the processing unit;
An inclined transport unit that receives the substrate tilted at a predetermined angle by the carry-in delivery unit and transports the inside of the processing unit at the tilt angle;
A loading / unloading unit that receives the substrate transported and processed in the processing unit at a predetermined tilt angle from the tilt transport unit and returns the substrate to a horizontal state;
At least one of the carry-in / delivery unit and the carry-out / delivery unit is arranged in parallel along the substrate conveyance direction, and the inclination angle of the substrate can be set separately, and the length dimension of the substrate conveyance unit An apparatus for transporting a substrate, comprising: an angle conversion means configured by a plurality of conveyors set to be shorter than a length dimension along a direction. 上記搬入受け渡し部の角度変換手段は、基板の搬送方向に沿って順次並設された第１の搬入コンベアと第２の搬入コンベアとによって構成されていて、第１、第２の搬入コンベアは水平状態で基板を受けて所定の角度に傾斜して基板を上記傾斜搬送部に搬送するとともに、基板の長さ寸法のほぼ半分が第１の搬入コンベアから外れた時点でこの第１の搬入コンベアはつぎの基板の受け渡しが可能な水平状態に倒伏させられることを特徴とする請求項１記載の基板の搬送装置。   The angle conversion means of the carry-in / deliver unit is configured by a first carry-in conveyor and a second carry-in conveyor that are sequentially arranged in parallel along the substrate carrying direction, and the first and second carry-in conveyors are horizontal. In this state, the substrate is received and inclined at a predetermined angle to convey the substrate to the inclined conveyance unit, and when approximately half of the length of the substrate is removed from the first carry-in conveyor, the first carry-in conveyor is 2. The substrate transfer apparatus according to claim 1, wherein the substrate is transferred to a horizontal state where the substrate can be transferred. 上記搬出受け渡し部の角度変換手段は、基板の搬送方向に沿って順次並設された第１の搬出コンベアと第２の搬出コンベアとによって構成されていて、第１、第２の搬出コンベアは所定の角度で傾斜した状態で基板を受けて水平に倒伏してから基板を搬送するとともに、基板が第１の搬出コンベアから外れた時点でこの第１の搬入コンベアはつぎの基板の受け渡しが可能な傾斜状態に起立されることを特徴とする請求項１記載の基板の搬送装置。   The angle conversion means of the carry-out / delivery unit is composed of a first carry-out conveyor and a second carry-out conveyor that are sequentially arranged along the substrate conveyance direction, and the first and second carry-out conveyors are predetermined. The substrate is transported after receiving the substrate in a state of being inclined at an angle of 1, and then the substrate is transported, and when the substrate is detached from the first carry-out conveyor, the first carry-in conveyor is inclined so that the next substrate can be delivered. 2. The substrate transfer apparatus according to claim 1, wherein the substrate transfer device is raised in a state. 処理部で処理される基板を搬送する搬送方法であって、
水平な状態で送られてきた基板を上記処理部に搬入する搬入工程と、
上記処理部に搬入された基板を所定の傾斜角度に傾斜されて搬送する搬送工程と、
上記処理部で処理された基板を受ける搬出工程とを具備し、
上記搬入工程と搬出工程との少なくとも一方の工程は、基板の傾斜角度を変換する角度変換工程を備えていることを特徴とする基板の搬送方法。 A transport method for transporting a substrate to be processed in a processing unit,
A loading step of loading the substrate sent in a horizontal state into the processing unit;
A transporting step of transporting the substrate carried into the processing unit inclined at a predetermined inclination angle;
An unloading step of receiving a substrate processed by the processing unit,
At least one of the carry-in process and the carry-out process includes an angle conversion process for converting the inclination angle of the substrate. 上記搬入工程における角度変換工程は、基板を水平な状態で受ける第１の工程と、水平状態で受けた基板を傾斜させる第２の工程と、傾斜させた基板を上記処理部に受け渡すとともに上記第１の工程を同時に行う第３の工程とを具備したことを特徴とする請求項４記載の基板の搬送方法。   The angle conversion step in the carry-in step includes a first step for receiving the substrate in a horizontal state, a second step for inclining the substrate received in the horizontal state, and delivering the inclined substrate to the processing unit. The substrate transport method according to claim 4, further comprising a third step of simultaneously performing the first step. 上記搬出工程における角度変換工程は、上記搬送工程から基板を傾斜した状態で受ける第１の工程と、傾斜状態で受けた基板を水平にする第２の工程と、水平にされた基板を搬出するとともに上記第１の工程を同時に行う第３の工程とを具備したことを特徴とする請求項４記載の基板の搬送方法。   The angle conversion step in the unloading step includes a first step of receiving the substrate in an inclined state from the transfer step, a second step of leveling the substrate received in the inclined state, and unloading the leveled substrate. A substrate transport method according to claim 4, further comprising a third step of simultaneously performing the first step.
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