WO2014146359A1 - 曝光方法及曝光设备 - Google Patents
曝光方法及曝光设备 Download PDFInfo
- Publication number
- WO2014146359A1 WO2014146359A1 PCT/CN2013/077260 CN2013077260W WO2014146359A1 WO 2014146359 A1 WO2014146359 A1 WO 2014146359A1 CN 2013077260 W CN2013077260 W CN 2013077260W WO 2014146359 A1 WO2014146359 A1 WO 2014146359A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- exposure
- substrate
- light
- photoresist
- exposure light
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 180
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims description 30
- 230000003287 optical effect Effects 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000003760 hair shine Effects 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 6
- 230000032258 transport Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70691—Handling of masks or workpieces
- G03F7/707—Chucks, e.g. chucking or un-chucking operations or structural details
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
- G03F7/2014—Contact or film exposure of light sensitive plates such as lithographic plates or circuit boards, e.g. in a vacuum frame
Definitions
- Embodiments of the present invention relate to display technology, and more particularly to an exposure method and an exposure apparatus for implementing the exposure method.
- Background technique
- LCD Liquid Crystal Display
- a TFT-LCD Thin Film Transistor-Liquid Crystal Display
- a TFT-Thin Film Transistor and a color filter substrate are main components of the display panel.
- the fabrication efficiency of the array substrate and the color filter substrate tends to be related to the production cycle of the entire display device.
- the lithography process is very important in the preparation of array substrates and color film substrates. As shown
- the current photolithography process generally includes: applying a photoresist (steps S1, -S2 in the figure), pre-baking, exposure (step S3 in the figure), development (step S4 in the figure) ,) and post-baking.
- the photoresist is applied by applying a photoresist on the substrate after the film formation in the previous step.
- the pre-bake is to preheat the photoresist and remove the moisture of the photoresist to increase the adhesion between the photoresist and the substrate.
- the exposure is performed by irradiating the photoresist onto the photoresist through the exposure light to expose the photoresist.
- the development is to remove the photoresist of the photosensitive portion by the developer to form a desired pattern.
- Post-baking is to cure the unphotosensitive photoresist in the pattern while increasing the adhesion to the substrate.
- the exposure apparatus of the prior art mainly includes a light source for providing parallel exposure light, a mask, an exposure machine, and the like. As shown in FIG. 1, the substrate 2 coated with the photoresist 3 is placed on the exposure machine 4, and the parallel exposure light 5 provided by the light source passes through the mask 1 and is vertically irradiated on the substrate 2 to form a mask. Consistent pattern. Thus, each time a mask is used, only one substrate can be exposed, and only one substrate can be exposed in one production cycle. At the same time, only a small part of the exposure light provided by the light source is utilized, and most of the other light is not fully utilized and lost. Therefore, the exposure method and the exposure apparatus in the prior art are not only inefficient in exposure, but also cause waste of energy. Summary of the invention
- Embodiments of the present invention provide an exposure method, including:
- the parallel exposure light illuminates the mask vertically, and the photoresist on each of the substrates is sequentially exposed in the direction in which the exposure light propagates.
- the exposure method further includes:
- the substrate is placed according to a set position.
- An embodiment of the present invention further provides an exposure apparatus for implementing the above exposure method, comprising: a light source for providing parallel exposure light, a mask plate sequentially disposed along the propagation direction of the exposure light, and at least two substrate supporting mechanisms; Both the mask and the substrate carrying mechanism are perpendicular to the direction of propagation of the exposure light.
- an optical adjustment mechanism for correcting the direction in which the exposure light propagates is disposed between two adjacent substrate supporting mechanisms.
- the light source comprises an ultraviolet parallel surface light source.
- the optical adjustment mechanism includes a concave lens.
- the substrate carrying mechanism on the exposure light propagation path includes a transparent exposure stage of a quartz glass substrate.
- a substrate transfer mechanism for transporting a substrate onto the substrate carrier mechanism is also included.
- the substrate transfer mechanism includes a substrate pinch unit; the substrate pinch unit includes a first jig that sandwiches the front and back surfaces of the substrate and a second jig that sandwiches the side of the substrate.
- the exposure light is vertically downwardly irradiated, and a plurality of through holes are formed in the bottommost exposure machine, and a bottom of the exposure machine is provided with a substrate support column that can pass through the through hole.
- the substrate transport mechanism also includes a robotic arm. After the robot arm transports the substrate to the substrate support column passing through the through hole, the substrate support column retracts the through hole.
- the substrate pinch unit is used to transport substrates for other exposure machines.
- FIG. 1 is a schematic structural view of an exposure apparatus in the prior art
- FIG. 3 is a schematic structural view of an exposure apparatus in an embodiment of the present invention.
- FIG. 4 is a schematic flow chart of an exposure method in an embodiment of the present invention.
- FIG. 5 is a schematic structural view of a substrate pinching unit in an embodiment of the present invention.
- FIG. 6 is a schematic diagram showing the working flow of a substrate pinching unit in the embodiment of the present invention.
- FIG. 7 is a schematic flow chart of a substrate handling process in an embodiment of the present invention.
- 1 mask; 2: photoresist; 3: substrate; 31: first substrate; 32: second substrate; 4: exposure machine; 41: first exposure machine; 42: second exposure machine 5; exposure light; 6: concave lens; 7: substrate clamping unit; 71: first clamp; 72: second clamp; 8: robot arm; 9: substrate support rod.
- the exposure apparatus provided by the embodiment of the present invention is applicable to a substrate light transmissive substrate preparation process, which mainly comprises: a light source for providing parallel exposure light, a mask plate sequentially arranged along the propagation direction of the exposure light, and at least two Substrate carrier mechanism. Both the reticle and the substrate carrier are perpendicular to the direction of propagation of the exposure light.
- the substrate and the substrate supporting mechanism are both disposed in a horizontal plane, and the exposure light is vertically irradiated on the mask.
- simultaneous exposure of an excessive number of substrates may affect the exposure effect.
- the exposure apparatus shown in FIG. 3 mainly includes a light source, a mask 1 and two substrate supporting mechanisms.
- the two substrate supporting mechanisms are respectively a first exposure machine 41 located in a horizontal plane and the first The exposure machine 41 is parallel and located at the second exposure machine 42 below the first exposure machine 41.
- the first exposure machine 41 and the second exposure machine are placed at a set position, and the horizontal position and the vertical position are adjusted according to the registration mark.
- the first exposure machine 41 is for carrying the first substrate 31, and the second exposure machine 42 is for carrying the second substrate 32. Both the first substrate 31 and the second substrate 32 are transparent.
- the first substrate 31 and the second substrate 32 are each coated with a photoresist 2.
- the mask 1 is disposed above the first exposure stage 41 and is parallel to the first exposure stage 41.
- the light source in this embodiment mainly includes ultraviolet rays to increase the utilization rate of light energy.
- An exposure method for performing exposure using the exposure apparatus is as shown in FIG. First, the first substrate 31 coated with the photoresist and the second substrate 32 are respectively placed on the corresponding exposure machine, and the parallel exposure light 5 provided by the light source vertically illuminates the mask 1 through the transparent region on the mask 1.
- the photoresist on the first substrate 31 is exposed, and a pattern corresponding to the mask 1 is formed on the first substrate 31.
- the exposure light that is not absorbed by the first substrate 31 passes through the first substrate 31 and the first exposure stage 41 to illuminate the second substrate 32, and exposes the photoresist on the second substrate 32.
- the exposure light is parallel light, the same pattern is formed on the second substrate 32 and the first substrate 31.
- the efficiency of exposure is effectively improved. Also, since the number of reticle used is reduced, the exposure cost is largely reduced. In addition, since the same exposure light is fully utilized, energy consumption is reduced, and the exposure cost is further reduced.
- the first exposure stage 41 is preferably made of a material having high light transmittance.
- the first exposure machine 41 in this embodiment is made of double-sided polished transparent quartz glass, and its size and strength are determined according to the shape and quality of the substrate to be carried. Since the second exposure machine 42 does not require light transmittance, the second exposure machine 42 may be made of the same material as the first exposure machine 41, or other materials may be selected.
- a carrying surface for supporting the second exposure machine 42 is disposed below the second exposure machine 42.
- the second exposure machine 42 is further provided with a plurality of through holes, and a substrate supporting column that can pass through the through holes is disposed at the bottom of the second exposure machine 42 for supporting when the second substrate 32 is placed. effect.
- a support cannot be provided between the first exposure machine 41 and the second exposure machine 42, that is, the support table and the substrate support bar cannot be disposed under the first exposure machine 41.
- the exposure light irradiated onto the second substrate 32 through the first exposure machine 41 coincides with the exposure light pattern irradiated to the first substrate 31 through the mask, the exposure light irradiated on the second substrate 32 must be parallel.
- the support table cannot be disposed between the first exposure machine 41 and the second exposure machine 42, the weight of the first substrate 31 and the weight of the first exposure machine 41 itself may cause the first exposure machine 41 to be downward.
- an optical adjustment mechanism is disposed between the first exposure machine 41 and the second exposure machine 42 so that the exposure light passes through the first substrate 31 and the first exposure machine 41 on the second substrate 32.
- the direction of propagation of the exposure light is corrected by an optical adjustment mechanism to form parallel light and vertically illuminate the second substrate 32.
- the light correcting mechanism mainly includes a concave lens 6, and the concave curvature of the concave lens 6 and the set position are determined according to the degree of deviation of the propagation direction of the exposure light after passing through the first exposure machine 41.
- the non-parallel light that has passed through the first exposure stage 41 is re-formed into parallel light by the concave lens 6, and is irradiated onto the second substrate 32, so that the pattern of the mask can be transferred to the second substrate 32.
- the present invention also contemplates a new substrate transfer mechanism for transporting substrates onto a substrate carrier.
- the substrate transfer mechanism mainly includes a substrate pinch unit 7 as shown in Fig. 5, and the substrate pinch unit includes a first jig 71 that sandwiches the front and back surfaces of the substrate, and a second jig 72 that sandwiches the side of the substrate. Since the substrate supporting column is provided at the bottom of the second exposure machine 42, the second substrate 32 can be transported by using the conventional robot arm transporting method or by using the above-described substrate pinching unit 7.
- the substrate transfer mechanism in this embodiment includes a substrate pinching unit 7 that transports the first substrate 31 to the first exposure table 41 and a robot arm that carries the second substrate 32 to the second exposure table 42.
- the substrate transfer mechanism in this embodiment will be described below with reference to Figs. 6 and 7 .
- the first jig 71 can be moved in a vertical plane for holding the substrate from the front side.
- the second clamp 72 is movable in a horizontal plane for holding the substrate from the side.
- the substrate pinching unit 7 is first lowered to a position where the bottom end of the second jig 72 is substantially flush with the bottom surface of the first substrate 31, and the second jig 72 is moved forward to sandwich the side surface of the first substrate 31. tight.
- the first jig 71 is then moved downward to clamp the upper and lower surfaces of the substrate.
- the substrate pinching unit 7 transports the first substrate 31 to the first exposure machine 41.
- the first substrate 31 is placed on the first exposure machine 41 in accordance with the alignment mark.
- the first jig 71 moves upward, and the second jig 72 moves backward to release the first substrate 31.
- the substrate pinching unit 7 is then entirely removed from the first exposure table 41.
- the substrate pinching unit 7 moves the first substrate 31 away from the first exposure table 41, and the moving directions of the first jig and the second jig are opposite to the tempo.
- the substrate support rod 9 protrudes from the through hole, and the robot arm 8 transports the second substrate 32 to the substrate support rod 9.
- the robot arm 8 is retracted, the substrate support rod 9 is withdrawn from the through hole, and the second substrate 32 is placed on the second exposure machine 42 in accordance with the alignment mark.
- the substrate support rod 9 protrudes from the through hole to lift up the second substrate 32.
- the robot arm 8 lifts the second substrate 32 away from the substrate support rod 9, and the substrate support rod 9 exits the through hole.
- the first substrate 31 and the second substrate 32 are placed at a predetermined position, and the two layers are arranged in parallel. The horizontal position is adjusted according to the registration mark, and the two vertical positions are set by the positions of the first exposure machine and the second exposure machine.
- the loading and unloading of the first substrate 31 and the second substrate 32 are performed in synchronization. After the first substrate 31 and the second substrate 32 are simultaneously transferred to the exposure machine, exposure can be performed. After the exposure is completed, the two substrates are synchronously moved away from the exposure machine.
- the mask is vertically irradiated with parallel exposure light, and the parallel exposure light is first applied to the uppermost substrate.
- the photoresist on the exposure is exposed.
- the photoresist on the underlying substrate is continued to be exposed through the parallel exposure light of the uppermost substrate, and so on, until the exposure of the photoresist on all of the substrates is completed. Since the photoresist on a plurality of substrates can be exposed at the same time, the efficiency of exposure is effectively improved. Also, since the number of reticle used is greatly reduced, the exposure cost is largely reduced. In addition, since the same exposure light is fully utilized, energy consumption is reduced, and the exposure cost is further reduced.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/382,435 US9568843B2 (en) | 2013-03-22 | 2013-06-14 | Exposure method and exposure device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310094965.7A CN103207529B (zh) | 2013-03-22 | 2013-03-22 | 曝光方法及曝光设备 |
CN201310094965.7 | 2013-03-22 |
Publications (1)
Publication Number | Publication Date |
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WO2014146359A1 true WO2014146359A1 (zh) | 2014-09-25 |
Family
ID=48754796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/077260 WO2014146359A1 (zh) | 2013-03-22 | 2013-06-14 | 曝光方法及曝光设备 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9568843B2 (zh) |
CN (1) | CN103207529B (zh) |
WO (1) | WO2014146359A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101327901B1 (ko) * | 2013-08-14 | 2013-11-13 | 삼우지앤티(주) | 디스플레이용 코팅유리 제조방법 |
CN104166311B (zh) * | 2014-08-06 | 2019-02-26 | 京东方科技集团股份有限公司 | 一种基板制作方法、平台和基板 |
CN106932955B (zh) * | 2017-05-17 | 2020-03-10 | 京东方科技集团股份有限公司 | 一种彩膜基板的制作方法、彩膜基板、显示装置 |
CN107193142A (zh) * | 2017-07-19 | 2017-09-22 | 武汉华星光电技术有限公司 | 配向膜固化系统 |
CN110687702A (zh) * | 2019-10-08 | 2020-01-14 | 深圳市华星光电技术有限公司 | 紫外光固化装置 |
Citations (5)
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CN101807007A (zh) * | 2009-02-16 | 2010-08-18 | 株式会社日立高新技术 | 液晶曝光装置 |
JP2011018861A (ja) * | 2009-07-10 | 2011-01-27 | Canon Inc | 露光装置及び露光方法、それを用いたデバイスの製造方法 |
CN102243444A (zh) * | 2010-05-14 | 2011-11-16 | 北京京东方光电科技有限公司 | 一种曝光设备、掩膜板及曝光方法 |
CN102681363A (zh) * | 2012-05-11 | 2012-09-19 | 清华大学 | 一种多工位硅片台多台交换系统及其交换方法 |
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US5378583A (en) * | 1992-12-22 | 1995-01-03 | Wisconsin Alumni Research Foundation | Formation of microstructures using a preformed photoresist sheet |
US5679502A (en) * | 1995-03-15 | 1997-10-21 | Wisconsin Alumni Research Foundation | Method and apparatus for micromachining using hard X-rays |
US6032997A (en) * | 1998-04-16 | 2000-03-07 | Excimer Laser Systems | Vacuum chuck |
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KR20070078647A (ko) * | 2006-01-27 | 2007-08-01 | 삼성전자주식회사 | 이중 웨이퍼 스테이지 및 이를 갖는 노광 시스템 |
TW200941322A (en) * | 2008-03-28 | 2009-10-01 | Tpk Touch Solutions Inc | Manufacturing method for conducting films on two surfaces of transparent substrate of touch-control circuit |
JP5563318B2 (ja) * | 2009-03-02 | 2014-07-30 | キヤノンアネルバ株式会社 | 基板支持装置、基板処理装置、基板支持方法、基板支持装置の制御プログラム及び記録媒体 |
CN101770970B (zh) * | 2010-01-26 | 2011-08-03 | 沈阳富森科技有限公司 | 用于转载石英舟的自动传输装置 |
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US9207549B2 (en) * | 2011-12-29 | 2015-12-08 | Nikon Corporation | Exposure apparatus and exposure method, and device manufacturing method with encoder of higher reliability for position measurement |
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2013
- 2013-03-22 CN CN201310094965.7A patent/CN103207529B/zh not_active Expired - Fee Related
- 2013-06-14 US US14/382,435 patent/US9568843B2/en active Active
- 2013-06-14 WO PCT/CN2013/077260 patent/WO2014146359A1/zh active Application Filing
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CN101807007A (zh) * | 2009-02-16 | 2010-08-18 | 株式会社日立高新技术 | 液晶曝光装置 |
JP2011018861A (ja) * | 2009-07-10 | 2011-01-27 | Canon Inc | 露光装置及び露光方法、それを用いたデバイスの製造方法 |
CN102243444A (zh) * | 2010-05-14 | 2011-11-16 | 北京京东方光电科技有限公司 | 一种曝光设备、掩膜板及曝光方法 |
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Also Published As
Publication number | Publication date |
---|---|
US9568843B2 (en) | 2017-02-14 |
US20150160563A1 (en) | 2015-06-11 |
CN103207529B (zh) | 2015-04-29 |
CN103207529A (zh) | 2013-07-17 |
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