WO2013155913A1 - 基板支撑销以及采用基板支撑销的基板支撑设备 - Google Patents

基板支撑销以及采用基板支撑销的基板支撑设备 Download PDF

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Publication number
WO2013155913A1
WO2013155913A1 PCT/CN2013/072891 CN2013072891W WO2013155913A1 WO 2013155913 A1 WO2013155913 A1 WO 2013155913A1 CN 2013072891 W CN2013072891 W CN 2013072891W WO 2013155913 A1 WO2013155913 A1 WO 2013155913A1
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WO
WIPO (PCT)
Prior art keywords
substrate
substrate support
support pin
heating device
pin body
Prior art date
Application number
PCT/CN2013/072891
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English (en)
French (fr)
Inventor
王守坤
孙亮
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to EP13734304.2A priority Critical patent/EP2840601B1/en
Priority to US13/984,387 priority patent/US9414439B2/en
Priority to KR1020137020461A priority patent/KR101485726B1/ko
Priority to JP2015504848A priority patent/JP2015519730A/ja
Publication of WO2013155913A1 publication Critical patent/WO2013155913A1/zh

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227Applications
    • H05B1/0288Applications for non specified applications
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus 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
    • H01L21/67005Apparatus not specifically provided for elsewhere
    • H01L21/67011Apparatus for manufacture or treatment
    • H01L21/67098Apparatus for thermal treatment
    • H01L21/67103Apparatus for thermal treatment mainly by conduction
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus 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
    • H01L21/67005Apparatus not specifically provided for elsewhere
    • H01L21/67011Apparatus for manufacture or treatment
    • H01L21/67098Apparatus for thermal treatment
    • H01L21/67109Apparatus for thermal treatment mainly by convection
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus 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
    • H01L21/683Apparatus 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 supporting or gripping
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus 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
    • H01L21/683Apparatus 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 supporting or gripping
    • H01L21/687Apparatus 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 supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
    • H01L21/68714Apparatus 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 supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
    • H01L21/68742Apparatus 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 supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a lifting arrangement, e.g. lift pins

Definitions

  • the present invention relates to a substrate support pin and a substrate support apparatus using the substrate support pin. Background technique
  • film formation is usually carried out by heating the substrate.
  • the substrate needs to be placed on the substrate support and heated by a heating element inside the substrate support.
  • the substrate before heating needs to be placed on the substrate support pin (pin), and the glass substrate is descended to the upper surface of the substrate support by the lifting and lowering of the substrate support pin, thereby implementing the heating process.
  • the substrate support pins currently used on the production line are made of solid materials whose temperature is not controllable. During the actual heating of the substrate, there are two cases:
  • the first type is that the substrate supporting pin is in contact with the substrate when the substrate is heated.
  • the temperature of the substrate supporting pin is lower than the temperature of the surrounding substrate, and the heat on the heated substrate is absorbed by heat transfer, thereby causing the substrate to be
  • the film quality is poor, and the electrical properties of the thin film field effect transistor are reduced;
  • the second type of support pin has a distance from the heated substrate.
  • the hole accommodating the support pin of the substrate is inconsistent with the ambient temperature, and the film formed at the hole is poor in film quality.
  • the electrical properties of thin film field effect transistors are reduced.
  • a substrate support pin comprising: a substrate support pin body; a heating device built in the substrate support pin body; and a first control electrically connecting the heating device and controlling the heating device unit.
  • the heating means is disposed adjacent to a top end of the substrate supporting pin body to be in contact with the substrate.
  • the substrate support pin may further include: a temperature sensing device, a temperature control portion disposed inside the substrate support pin body for sensing a region around the substrate support pin; a second control portion, and the first control portion And a temperature sensing device respectively connected to the signal sensing device The received temperature signal sends a control signal to the first control unit to control the heating device.
  • the substrate support pin may further include: a cooling device located in the substrate support pin body; and a third control connected to the cooling device for controlling cooling of the substrate support pin body by the cooling device And the second control unit is connected to the third control unit to signal the cooling device.
  • the cooling device may comprise, for example, a cooling liquid tube.
  • the cooling liquid pipe is disposed farther from the top end of the substrate supporting pin body than the heating device.
  • the cooling liquid tube may be a separate conduit embedded in the substrate support pin body or a channel structure that is directly open in the substrate support pin body.
  • the cooling device may include a cooling gas intake pipe and a cooling gas exhaust pipe.
  • the end of the cooling gas intake pipe is provided with a porous jet device
  • the porous jet device is a tubular structure with a plurality of air holes or a shower head device with a plurality of air holes.
  • the temperature sensing device is disposed adjacent to a top end of the substrate support pin body to be in contact with the substrate and at a periphery of the top end.
  • the substrate support pin body may have a hollow cavity near its top end, and the heating device and the temperature sensing device may be located within the hollow cavity.
  • the third control unit is, for example, a solenoid valve.
  • the temperature sensing device is, for example, a thermocouple.
  • the heating device is for example a heating wire or an electromagnetic heating device.
  • a substrate supporting apparatus including: a substrate supporting member; and a substrate supporting pin disposed to rise or fall through an opening formed in the substrate supporting plate Supporting the substrate thereon or placing the substrate onto the substrate support, wherein the substrate support pin comprises: a substrate support pin body; a heating device built in the substrate support pin body; and an electrical connection The heating device controls the first control portion of the heating device.
  • FIG. 1 is a schematic structural view of a substrate supporting apparatus according to an embodiment of the present invention, wherein a substrate is placed on a substrate supporting member of a substrate supporting apparatus;
  • FIG. 2 is a schematic structural view of a substrate supporting pin according to an embodiment of the invention.
  • FIG. 3 is a schematic structural view of a substrate supporting pin according to an embodiment of the invention.
  • FIG. 4 is a schematic structural view of a substrate supporting pin according to an embodiment of the invention.
  • the substrate support apparatus includes a substrate support 12 and a substrate support pin.
  • the substrate support pin is disposed to rise or fall through an opening formed in the substrate support plate to support the substrate 11 on the substrate support
  • the substrate 11 is placed on the support pins or placed on the substrate support 12.
  • the substrate supporting pin includes: a substrate supporting pin body 10; a heating device 2 built in the substrate supporting pin body 10; and a first control portion 3 electrically connecting the heating device 2 and controlling the heating device 2.
  • the heating device 2 may be disposed adjacent to a top end of the substrate supporting pin body to be in contact with the substrate.
  • the substrate support pin can achieve temperature rise.
  • the current is adjusted by the first control portion 3 to raise the temperature of the heating device 2 inside the substrate support pin to a specified temperature to match the heating temperature of the surrounding substrate support 12.
  • the substrate support pin body 10 may comprise a ceramic material, and the heating device 2 is embedded in the substrate support pin body 10.
  • the heating device 2 In the selection of the heating device 2, a heating wire or an electromagnetic heating device, or other means suitable for heating the substrate supporting pin body may be selected.
  • the first control unit 3 controls the heating device 2 to raise the temperature, the heating device 2 first heats the substrate supporting pin body 10, and then the substrate supporting pin body 10 after the temperature rise can heat the substrate (for example, the glass substrate) 11.
  • the substrate supporting pin of the present invention may further include:
  • a temperature sensing device 4 located inside the substrate supporting pin body 10, for sensing a temperature of a region around the substrate supporting pin;
  • the second control unit 8 is separately coupled to the first control unit 3 and the temperature sensing device 4 for transmitting a control signal to the first control unit 3 based on the temperature signal received from the temperature sensing device 4.
  • the first control unit 3 controls the heating device 2 based on the control signal received from the second control unit 8, for example, controls the heating device 2 to perform temperature increase.
  • the first control portion 3 can control the heating device 2 in accordance with the actual temperature of the surrounding substrate support 12, and the temperature of the plate support pin body 10 matches the ambient temperature.
  • the temperature sensing device 4 can be of various types, such as a thermocouple or a temperature probe.
  • the second control unit 8 may be an information receiving and processing center, such as a machine equipment control center, capable of receiving and processing information of the temperature sensing device, and then issuing an instruction to the first control unit 3 to cause the first control unit 3 to heat
  • the device 2 implements temperature rise control.
  • the temperature sensing device 4 can be directly signally connected to the second control unit 8 as a separately operated device. As shown in FIG. 1, the temperature sensing device 4 senses the temperature of the region of the substrate 11 corresponding to the substrate supporting pin during operation, and transmits the data to the second control portion 8.
  • the temperature sensing device 4 is disposed near the top end of the substrate support pin body 10 to be in contact with the substrate and at the periphery of the top end.
  • the second control unit 8 can compare the above two types of data, and then feed back the command to the first control unit 3 of the internal heating device 2 of the control substrate support pin, and adjust the temperature of the substrate support pin by the first control unit 3, thereby realizing the substrate.
  • the area of the substrate 11 corresponding to the support pin is adjusted in accordance with the temperature of the other heating areas of the substrate 11.
  • the substrate support pin may further include: a cooling device located in the substrate support pin body 10; and a third control connected to the cooling device for controlling cooling of the substrate support pin body by the cooling device a portion 6, wherein the second control portion 8 is signally coupled to the third control portion 6 to control the cooling device.
  • the cooling device can be a cooling liquid tube 7.
  • the cooling liquid pipe 7 can be uniformly embedded in the substrate supporting pin body 10, and as a separate pipe, the substrate supporting pin body 10 can be quickly cooled by the low temperature liquid flowing inside the pipe.
  • the cooling liquid flows into and out of the substrate support pin body 10 by the third control portion 6.
  • the third control unit 6 is a cooling adjustment device, and may be, for example, a solenoid valve.
  • the third control unit 6 is signal-connected to the second control unit 8, and the information fed back by the second control unit 8 can adjust the flow rate of the cooling medium to achieve the purpose of temperature reduction and temperature control.
  • the medium to which the cooling liquid pipe 7 is specifically introduced may be a liquid medium such as water or oil which can be cooled.
  • the cooling liquid pipe 7 cannot be sandwiched between the top end of the substrate supporting pin body and the heating device 2, which may affect heat radiation and may also cause cooling liquid.
  • the liquid inside the tube 7 is thermally expanded to rupture the tube, and therefore, the cooling liquid tube 7 is preferably disposed farther from the top end of the substrate support pin body 10 than the heating device 2.
  • the cooling liquid tube 7 may be attached to the side wall of the hollow cavity of the substrate supporting pin body and arranged around.
  • the cooling liquid pipe 7 is pierced from the bottom of the substrate supporting pin body, and is provided with a solenoid valve controllable by the second control portion 8, and the temperature rise or fall temperature control of the substrate supporting pin is realized by cooperation with the temperature sensing device and the heating device 2. .
  • the substrate support pin body may be designed to have a hollow cavity near the top end thereof, and the heating device 2 and the temperature sensing device 4 are disposed in the hollow cavity near the substrate support pin body. At the top.
  • the heating device 2 is electrically connected to the first control unit 3, and the first control unit 3 controls the heating device 2 to raise or lower the temperature.
  • the heating device 2 needs to be kept at a certain distance from the top end of the substrate supporting pin body during installation, and cannot be directly contacted. During the heating process, the top end of the substrate support pin body is radiated and heated, thereby transferring heat to the contacted substrate 11 to raise the temperature of the substrate 11. In another case, after the substrate support pins are retracted into the openings of the substrate support 12, the top ends of the substrate support pin bodies are not in contact with the substrate 11, with a distance therebetween. In this case, after the temperature rises at the tip end of the substrate supporting pin main body, the substrate 11 is thermally radiated, and by heating the substrate in this manner, the substrate 11 can be heated.
  • the working principle of the heating device 2 of the substrate supporting pin and the temperature sensing device 4 is exemplified in the above embodiment.
  • another cooling device may be provided in the hollow cavity of the substrate support pin body, for example cooling through the cooling gas A gas intake pipe 51 and a cooling gas exhaust pipe 52 that discharges the cooling gas. As shown in Fig. 1, the cooling gas is introduced into the hollow space of the substrate supporting pin body, so that the temperature of the substrate supporting pin can be rapidly lowered.
  • the heating by the heating device 2 alone does not necessarily meet the matching requirement, so that the device for introducing the cooling gas can be installed, so that the cooling gas can assist the heating device 2 to rapidly cool down.
  • the cooling gas intake pipe 51 and the cooling gas exhaust pipe 52 are respectively provided with a third control portion 6 (for example, a solenoid valve) controllable by the second control portion 8 outside the substrate support pin, and the temperature sensing device 4 and the heating device The cooperation of the device 2 enables temperature rise or temperature drop control of the substrate support pins.
  • a porous jet device may be provided at the end of the cooling gas intake pipe 51 to uniformly cool the top end of the substrate support pin.
  • the specific structure of the porous jet device may be various. For example, it may be a tubular structure 511 having a plurality of air holes, as shown in FIG. 2, that is, a row of several through holes are simultaneously opened on the pipe wall of one pipe, and each through hole can be transported outward. The cooling gas increases the area of the gas outlet, allowing the substrate support pins to cool more quickly.
  • the porous jet device may also be a showerhead device 512 having a plurality of air holes. As shown in Fig. 3, the specific structure is similar to that of a shower head, and the through hole is directly directed toward the top end of the substrate supporting pin, and the cooling effect is more remarkable.
  • the substrate supporting pin by providing a heating device inside the substrate supporting pin, a temperature sensing device for measuring the ambient temperature and a cooling device, the substrate supporting pin can be adjusted to achieve temperature adjustment, thereby There is no local temperature too low during the heating process.
  • the film quality is poor, and the electrical properties of the thin film field effect transistor are reduced, thereby reducing the phenomenon of visual unevenness of the liquid crystal display after the finished product, improving the yield, reducing the possibility of generating residual products, and saving cost.

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  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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  • Crystallography & Structural Chemistry (AREA)
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  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
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  • Devices For Use In Laboratory Experiments (AREA)

Abstract

根据本发明的实施例提供了一种基板支撑销,其包括:基板支撑销本体;内置在所述基板支撑销本体中的加热装置;以及电连接所述加热装置并控制加热装置的第一控制部。此外,根据本发明实施例,还提供了一种基板支撑设备,其包括:基板支撑件;和基板支撑销,所述基板支撑销设置为穿过形成于所述基板支撑板中的开口中上升或下降,以将基板支撑于其上或将基板放置到所述基板支撑件上,其中,所述基板支撑销包括:基板支撑销本体;内置在所述基板支撑销本体中的加热装置;以及电连接所述加热装置并控制加热装置的第一控制部。所述基板支撑销和基板支撑设备有助于消除由于对基板的加热不均匀而造成的不利影响。

Description

基板支撑销以及釆用基板支撑销的基板支撑设备
技术领域
本发明涉及基板支撑销以及采用基板支撑销的基板支撑设备。 背景技术
在液晶显示器的生产线中, 通常采用对基板加热的方法成膜。 需要将基 板放置在基板支撑件上, 通过基板支撑件内部的加热元件对其进行加热。 而 加热前的基板需要先放置在基板支撑销 (pin )上, 通过基板支撑销的升降将 玻璃基板緩降到基板支撑件的上表面, 进而实现加热过程。
目前生产线上所用的基板支撑销是温度不可控的实心材料制成, 在基板 实际加热的过程中, 会有两种情况:
第一种是基板支撑销在基板被加热时与基板接触, 此种情况下, 基板支 撑销的温度低于周围基板的温度, 会通过热传递吸收被加热的基板上的热量, 从而导致基板此处的膜质较差、 薄膜场效应晶体管的电学性质降低;
第二种 ^^板支撑销与被加热的基板有一段的间隔距离, 此种情况下, 容纳基板支撑销的孔洞处与周围温度不一致, 同样会导致孔洞处的基板形成 的膜质较差、 薄膜场效应晶体管的电学性质降低。
以上两种情况都会导致成品后的液晶显示器视觉不均匀的现象, 使产线 的良率降低, 因此生产线需要一种能减少此类现象发生的新设计。 发明内容
根据本发明的实施例, 提供一种基板支撑销, 其包括: 基板支撑销本体; 内置在所述基板支撑销本体中的加热装置; 以及电连接所述加热装置并控制 加热装置的第一控制部。
优选, 所述加热装置设置为靠近所述基板支撑销本体的要与基板接触的 顶端。
优选, 所述基板支撑销还可以包括: 温度感测装置, 设置于所述基板支 撑销本体的内部, 用于感应基板支撑销周围区域的温度控制部; 第二控制部, 与第一控制部和温度感测装置分别信号连接, 用于根据从所述温度感测装置 接收到的温度信号向第一控制部发送控制信号以控制加热装置。
根据一些实施例, 所述基板支撑销还可以包括: 位于所述基板支撑销本 体中的冷却装置; 以及与所述冷却装置连接、 用于控制冷却装置对基板支撑 销本体进行冷却的第三控制部, 其中, 所述第二控制部与第三控制部信号连 接, 以控制所述冷却装置。
所述冷却装置可以包括例如冷却液体管。
优选, 所述冷却液体管设置为比所述加热装置距离所述基板支撑销本体 的顶端更远。
根据一些实施例, 所述冷却液体管可以为被嵌入到所述基板支撑销本体 中的单独的管路, 或者为在所述基板支撑销本体中直接开通的通道结构。
作为附加或替代, 所述冷却装置可以包括冷却气体进气管和冷却气体排 气管。
优选, 所述冷却气体进气管的末端设有多孔喷气装置, 所述多孔喷气装 置为带有多个气孔的管状结构或带有多个气孔的喷头装置。
优选, 所述温度感测装置设置为靠近所述基板支撑销本体的要与基板接 触的顶端且位于该顶端的周缘处。
根据一些实施例, 所述基板支撑销本体可以具有靠近其顶端的中空腔, 所述加热装置和所述温度感测装置可以位于中空腔内。
所述第三控制部例如为电磁阀。
所述温度感测装置例如为热电偶。
所述加热装置例如为电热丝或电磁加热装置。
根据本发明的实施例,还提供一种基板支撑设备,其包括:基板支撑件; 和基板支撑销,所述基板支撑销设置为穿过形成于所述基板支撑板中的 开口中上升或下降,以将基板支撑于其上或将基板放置到所述基板支撑 件上, 其中, 所述基板支撑销包括: 基板支撑销本体; 内置在所述基板 支撑销本体中的加热装置;以及电连接所述加热装置并控制加热装置的 第一控制部。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例的附图作 筒单地介绍。 显而易见地, 下面描述中的附图仅仅涉及本发明的一些实施例, 而非对本发明的限制。
图 1是根据本发明实施例提供的基板支撑设备的结构示意图, 其中示出 一基板被放置在基板支撑设备的基板支撑件上;
图 2是根据本发明一实施例提供的基板支撑销的结构示意图;
图 3是根据本发明一实施例提供的基板支撑销的结构示意图;
图 4是根据本发明一实施例提供的基板支撑销的结构示意图。
附图标记:
2-加热装置 3-第一控制部 12-基板支撑件
11-基板 4-温度感测装置 8-第二控制部
7-冷却液体管 511-管状结构 512-喷头装置
6-第三控制部 51-冷却气体进气管 52-冷却气体排气管
10-基板支撑销本体 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例的附图, 对本发明实施例的技术方案进行清楚、 完整地描述。 显然, 所描述的实施例是本发明的一部分实施例, 而不是全部的实施例。 基于所描 述的本发明的实施例, 本领域普通技术人员在无需创造性劳动的前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
下面详细描述本发明的实施例, 所述实施例的示例在附图中示出, 其中 自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的 元件。
在本发明的描述中, 术语 "上部"、 "下部" "上方"、 "下方" 等指示的方 位或位置关系为基于附图所示的方位或位置关系, 仅是为了便于描述本发明 而不是要求本发明必须以特定的方位构造和操作, 因此不能理解为对本发明 的限制。
图 1是根据本发明实施例提供的基板支撑设备的结构示意图, 其中示出 一基板被放置在基板支撑设备的基板支撑件上。 如图所示, 所述基板支撑设 备包括基板支撑件 12 和基板支撑销。 所述基板支撑销设置为穿过形成 于所述基板支撑板中的开口中上升或下降, 以将基板 11支撑于基板支 撑销上或将基板 11放置到所述基板支撑件 12上。
如图 1所示, 基板支撑销包括: 基板支撑销本体 10; 内置在基板支撑销 本体 10中的加热装置 2; 以及电连接加热装置 2并控制加热装置 2的第一控 制部 3。
加热装置 2可以设置为靠近所述基板支撑销本体的要与基板接触的顶端。 基板支撑销可以实现升温。 在基板被加热的过程中, 通过第一控制部 3 调节电流, 使基板支撑销内部的加热装置 2升温到指定温度, 以与周围的基 板支撑件 12的加热温度相匹配。 通过对整体基板 11加热, 可以提高膜质的 均一性, 从而提高基板支撑销区域的薄膜场效应晶体管的电学性质, 减少视 觉不均的现象, 提高产品的成品率。
在本发明的实施例中, 基板支撑销本体 10可以包括陶瓷材料, 加热装置 2嵌设于基板支撑销本体 10内。 在加热装置 2的选用方面, 可以选择电热丝 或电磁加热装置, 或者其它适合于加热基板支撑销本体的装置。 当第一控制 部 3控制加热装置 2进行升温时,加热装置 2首先将基板支撑销本体 10加热, 继而升温后的基板支撑销本体 10就可以对基板(例如玻璃基板 )11实现加热。
为了使上述实施例中的第一控制部 3能够更准确地控制温度, 如图 1所 示, 本发明提出的基板支撑销, 还可进一步包括:
温度感测装置 4, 位于所述基板支撑销本体 10的内部, 用于感应基板支 撑销周围区域的温度;
第二控制部 8, 与第一控制部 3和温度感测装置 4分别信号连接,用于根 据从温度感测装置 4接收到的温度信号向第一控制部 3发送控制信号。
相应地, 所述第一控制部 3根据从第二控制部 8接收到的控制信号控制 加热装置 2, 例如控制加热装置 2进行升温。
这样, 第一控制部 3可以根据周围基板支撑件 12的实际温度对加热装置 2进行控制, 板支撑销本体 10的温度与周围温度相匹配。
所述温度感测装置 4可以为各种类型, 例如热电偶或测温探头。 第二控 制部 8可以是一信息接收和处理中心, 如机台设备控制中心, 能够接收温度 感应装置的信息并进行处理, 然后对第一控制部 3下达指令,使第一控制部 3 对加热装置 2实现升温控制。 温度感测装置 4可以作为单独工作的设备直接信号连接到第二控制部 8。 如图 1所示, 温度感测装置 4在工作时感应基板支撑销所对应的基板 11区域 的温度, 并将数据传到第二控制部 8。 优选, 温度感测装置 4设置为靠近基板 支撑销本体 10的要与基板接触的顶端且位于该顶端的周缘处。
可以设置其它感应设备以对基板 11其它加热区域的温度进行测量, 并将 测量数据也发送到第二控制部 8。 第二控制部 8可以对以上两种数据进行比 较, 然后将指令反馈给控制基板支撑销内部加热装置 2的第一控制部 3 ,通过 第一控制部 3调节基板支撑销的温度, 从而实现基板支撑销对应的基板 11区 域与基板 11其它加热区域温度保持一致的调节。
当基板支撑件 12降温时, 基板支撑销本体 10也需要与其一同降温。 根 据本发明实施例的基板支撑销还可包括: 位于所述基板支撑销本体 10中的冷 却装置; 以及与所述冷却装置连接、 用于控制冷却装置对基板支撑销本体进 行冷却的第三控制部 6,其中所述第二控制部 8与第三控制部 6信号连接, 以 控制所述冷却装置。
图 4是根据本发明一实施例提供的基板支撑销的结构示意图。 在图 4所 示的实施例中,所述冷却装置可以为冷却液体管 7。冷却液体管 7可以均匀内 嵌在基板支撑销本体 10中,作为单独的管路,通过管路内部流动的低温液体, 可以使基板支撑销本体 10迅速实现降温。 当然, 也可以是, 在基板支撑销本 体 10内部直接开通形成通道结构的冷却液体管, 使冷却液体流入冷却液体管 内, 同样可以实现降温效果。 冷却液体流入和流出基板支撑销本体 10是通过 第三控制部 6实现的。 第三控制部 6是一冷却调节装置, 例如可以为电磁阀。 第三控制部 6与第二控制部 8信号连接, 通过第二控制部 8反馈的信息, 可 进行冷却介质的流量调节, 从而达到降温的目的, 实现温度控制。 具体通入 冷却液体管 7的介质可以是水或油等能够实现降温的液体介质。
由于加热装置 2位于靠近基板支撑销本体 10的要与基板接触的顶端处, 冷却液体管 7不能夹在基板支撑销本体顶端与加热装置 2之间, 会影响热辐 射, 也可能会造成冷却液体管 7 内部的液体受热膨胀而使管路破裂, 因此, 冷却液体管 7优选设置为比加热装置 2距离基板支撑销本体 10的顶端更远。 作为示例, 如图 4所示, 冷却液体管 7可以贴在基板支撑销本体的中空腔的 侧壁上, 并且环绕排布。 冷却液体管 7从基板支撑销本体的底部穿出, 并且 设置有可通过第二控制部 8控制的电磁阀, 通过与温度感测装置以及加热装 置 2的配合实现基板支撑销的升温或降温控制。 在本发明的一个实施例中, 如图 1所示, 基板支撑销本体可以设计成具 有靠近其顶端的中空腔, 加热装置 2和温度感测装置 4设置在中空腔内靠近 基板支撑销本体的顶端处。加热装置 2电连接第一控制部 3 ,通过第一控制部 3控制加热装置 2升温或者降温。加热装置 2在安装时需要与基板支撑销本体 的顶端保持一定距离, 不能直接接触。 加热过程中, 基板支撑销本体的顶端 被辐射变热, 从而对接触的基板 11进行热传递, 使基板 11升温。 另一种情 况是基板支撑销缩回到基板支撑件 12的开口中后,基板支撑销本体的顶端不 与基板 11接触, 之间相隔一段距离。 此种情况下, 在基板支撑销本体的顶端 升温后, 会对基板 11进行热辐射, 通过此种方式使基板升温, 也可以达到加 热基板 11的目的。
以上实施例中列举了基板支撑销的加热装置 2以及温度感测装置 4的工 作原理。为了使基板支撑销的温度调节与基板 11其它区域的温度更好的匹配, 作为附加或者替代, 在基板支撑销本体的中空腔内可以设置另外一种冷却装 置, 例如可以通入冷却气体的冷却气体进气管 51 , 以及排出冷却气体的冷却 气体排气管 52。 如图 1所示, 在基板支撑销本体的中空腔中通入冷却气体, 可以使基板支撑销的温度迅速降低。 在基板 11其它区域温度较低时, 单靠加 热装置 2常温冷却不一定可以满足匹配需求, 因此加装可通入冷却气体的装 置, 使冷却气体可以辅助加热装置 2快速降温。 冷却气体进气管 51与冷却气 体排气管 52在基板支撑销的外部分别设有可通过第二控制部 8控制的第三控 制部 6 (例如电磁阀 ), 通过与温度感测装置 4以及加热装置 2的配合实现对 基板支撑销的升温或降温控制。
在冷却气体进气管 51的末端可以设置多孔喷气装置, 以便使基板支撑销 顶端均匀降温。 所述多孔喷气装置的具体结构可以是多种。 例如, 其可以是 带有多个气孔的管状结构 511 ,如图 2所示, 即相当于在一条管路的管壁上同 时开有一排几排通孔, 每个通孔都可以向外输送冷却气体, 增大了出气的面 积, 使基板支撑销可以更快的冷却。 另外, 多孔喷气装置还可以是带有多个 气孔的喷头装置 512, 如图 3所示, 具体结构类似于淋浴喷头, 其上的通孔直 接朝向基板支撑销的顶端, 降温效果更明显。
根据本发明实施例提出的基板支撑销, 通过在基板支撑销内部设置加热 装置, 测量周围温度的温度感测装置以及降温装置, 使基板支撑销能够 4艮好 的实现温度调节, 从而 ^^板在被加热的过程中不会出现局部温度过低而导 致膜质较差、 薄膜场效应晶体管的电学性质降低的情况, 从而减少了成品后 的液晶显示器视觉不均匀的现象, 提高了成品率, 减少了生成残品的可能性, 节约了成本。
尽管已经示出和描述了本发明的实施例, 本领域的普通技术人员可以理 解: 在不脱离本发明的原理和宗旨的情况下, 可以对这些实施例进行多种变 化、 修改、 替换和变型, 本发明的范围由权利要求及其等同物限定。

Claims

权利要求书
1、 一种基板支撑销, 包括基板支撑销本体, 其中, 所述基板支撑销还包 括:
内置在所述基板支撑销本体中的加热装置, 以及
电连接所述加热装置并控制加热装置的第一控制部。
2、 如权利要求 1所述的基板支撑销, 其中, 所述加热装置设置为靠近所 述基板支撑销本体的要与基板接触的顶端。
3、 如权利要求 1所述的基板支撑销, 还包括:
温度感测装置, 设置于所述基板支撑销本体的内部, 用于感应基板支撑 销周围区域的温度;
第二控制部, 与第一控制部和温度感测装置分别信号连接, 用于根据从 所述温度感测装置接收到的温度信号向第一控制部发送控制信号以控制加热 装置。
4、 如权利要求 3所述的基板支撑销, 还包括:
位于所述基板支撑销本体中的冷却装置; 以及
与所述冷却装置连接、 用于控制冷却装置对基板支撑销本体进行冷却的 第三控制部, 控制部
其中, 所述第二控制部与第三控制部信号连接, 以控制所述冷却装置。
5、 如权利要求 4所述的基板支撑销, 其中, 所述冷却装置包括冷却液体 管。
6、 如权利要求 5所述的基板支撑销, 其中, 所述冷却液体管设置为比所 述加热装置距离所述基板支撑销本体的顶端更远。
7、 如权利要求 5或 6所述的基板支撑销, 其中, 所述冷却液体管为被嵌 入到所述基板支撑销本体中的单独的管路, 或者为在所述基板支撑销本体中 直接开通的通道结构。
8、 如权利要求 4所述的基板支撑销, 其中, 所述冷却装置包括冷却气体 进气管和冷却气体排气管。
9、 如权利要求 8所述的基板支撑销, 其中, 所述冷却气体进气管的末端 设有多孔喷气装置, 所述多孔喷气装置为带有多个气孔的管状结构或带有多 个气孔的喷头装置。
10、如权利要求 3-9中任一项所述的基板支撑销, 其中, 所述温度感测装 置设置为靠近所述基板支撑销本体的要与基板接触的顶端且位于该顶端的周 缘处。
11、 如权利要求 10所述的基板支撑销, 其中, 所述基板支撑销本体具有 靠近其顶端的中空腔, 所述加热装置和所述温度感测装置位于中空腔内。
12、如权利要求 4-9中任一所述的基板支撑销, 其中, 所述第三控制部为 电磁阀。
13、 如权利要求 3~12中任一项所述的基板支撑销, 其中, 所述温度感测 装置为热电偶。
14、 如前述权利要求中任一项所述的基板支撑销, 其中, 所述加热装置 为电热丝或电磁加热装置。
15、 一种基板支撑设备, 包括:
基板支撑件; 和
基板支撑销, 所述基板支撑销设置为穿过形成于所述基板支撑板 中的开口中上升或下降, 以将基板支撑于其上或将基板放置到所述 基板支撑件上,
其中, 所述基板支撑销包括: 基板支撑销本体; 内置在所述基板 支撑销本体中的加热装置; 以及电连接所述加热装置并控制加热装 置的第一控制部。
PCT/CN2013/072891 2012-04-16 2013-03-19 基板支撑销以及采用基板支撑销的基板支撑设备 WO2013155913A1 (zh)

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KR20140001994A (ko) 2014-01-07
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US20140054282A1 (en) 2014-02-27
US9414439B2 (en) 2016-08-09

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