WO2007046151A1 - 半導体および液晶製造工程における半導体基板および液晶基板表面の静電除去装置 - Google Patents
半導体および液晶製造工程における半導体基板および液晶基板表面の静電除去装置 Download PDFInfo
- Publication number
- WO2007046151A1 WO2007046151A1 PCT/JP2005/019401 JP2005019401W WO2007046151A1 WO 2007046151 A1 WO2007046151 A1 WO 2007046151A1 JP 2005019401 W JP2005019401 W JP 2005019401W WO 2007046151 A1 WO2007046151 A1 WO 2007046151A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- soft
- liquid crystal
- clean air
- ray
- semiconductor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/06—Carrying-off electrostatic charges by means of ionising radiation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
Definitions
- the present invention relates to a semiconductor for removing static electricity adhering to a semiconductor substrate and a liquid crystal substrate surface in a semiconductor and liquid crystal manufacturing process, and an electrostatic removal apparatus for a semiconductor substrate and a liquid crystal substrate surface in a liquid crystal manufacturing process. .
- an ionizer for removing static electricity is installed on the substrate surface in the semiconductor and liquid crystal manufacturing apparatuses.
- the ionizer includes an electric ionizer that ionizes air at a high voltage and a soft X-ray ionizer that irradiates the air with soft X-rays to ionize the air.
- the electric ionizer is easy to handle! /, But the electrode wears due to the high-pressure discharge for a long period of time, and dust is generated and attached to the substrate only by replacing the electrode. There was a problem. Furthermore, there is a problem that high-frequency noise generated from the electric ionizer adversely affects other devices.
- the soft X-ray ionizer has a problem that the soft X-ray does not leak outside because the soft X-ray affects the human body.
- the neutralization method for charged objects disclosed in Patent Document 1 below is not considered to prevent leakage to the outside, and the filter is exposed to soft X-rays. When it deteriorated, there was a problem.
- the present invention uses a soft X-ray ionizer, but is configured so that the soft X-rays do not leak to the outside, and the cylindrical filter is not exposed to the soft X-rays.
- the present invention provides a semiconductor substrate and a liquid crystal substrate surface electrostatic removal device in a semiconductor and a liquid crystal manufacturing process that are not likely to be transformed.
- a clean air generating unit including a cylindrical filter, a soft X-ray irradiation unit including an irradiation passage, and an ionized clean air jetting unit are arranged in series in a blowing direction in a guide container.
- the clean air generating unit is prevented from being exposed to soft X-rays by a shielding member, and the clean air ejecting unit ejects only ionized clean air, and the soft X-ray guide container.
- the clean air ejected from the cylindrical filter is ionized by the soft X-rays in the irradiation path on the downstream side, and the ionized clean air is uniform in the longitudinal direction from the ejection portion.
- the cylindrical filter is provided with a shielding member so as not to directly irradiate soft X-rays, there is no possibility that the cylindrical filter will deteriorate.
- a clean air generation unit including a cylindrical filter, a soft X-ray irradiation unit, and an ionized clean air ejection unit are arranged in series in the blowing direction in the guide container, and the clean air generation unit includes:
- the shielding member prevents exposure to soft X-rays, and the clean air ejection part ejects only ionized clean air and prevents leakage of soft X-rays outside the guide container.
- the filter has been prevented from degrading and soft X-rays are not affected by the human body, and a device for removing static electricity from the semiconductor substrate and the surface of the liquid crystal substrate in the semiconductor and liquid crystal manufacturing processes has been realized.
- FIG. 1 shows an embodiment 1 of an electrostatic removal apparatus for a semiconductor substrate and a liquid crystal substrate surface in the semiconductor and liquid crystal manufacturing process of the present invention.
- Fig. 2 is a longitudinal sectional view as seen from the side, and Fig. 2 is a longitudinal sectional view as seen from the front side force.
- the electrostatic removal device for the semiconductor substrate and the surface of the liquid crystal substrate in the semiconductor and liquid crystal manufacturing process of the present invention is, as shown in FIGS.
- the part 2 and the ionized clean air ejection part 3 By placing the part 2 and the ionized clean air ejection part 3 in series in the blowing direction in the guide vessel 4, the soft X-ray irradiation part 2 and the clean air ejection part 3 that is ionized as close as possible, It is configured such that ionized clean air can be ejected out of the guide container 4 in a short time without leaking soft X-rays.
- the clean air generating unit 1 is formed by a cylindrical filter 5, and the cylindrical filter 5 is formed by filtering the filter medium 6 into a cylindrical shape and forming a hollow portion as a ventilation space 7, and one end portion on one side.
- An air supply ring 9 having an air supply port 8 formed therein is fixed, and a sealing plug 10 is fixedly fixed to the other end.
- the cylindrical filter 5 is not particularly limited, but it is recommended that the cylindrical filter 5 be manufactured according to Japanese Patent Application No. 2003-23768 relating to the patent application of the present applicant.
- the guide container 4 may have a polygonal shape that is not necessarily limited to the force cylindrical shape formed by the cylindrical long cylindrical body 11. That is, the guide container 4 is formed by fixing the side wall plates 12 and 13 to both end portions of the long cylindrical body 11, and is filtered in the guide container 4 by the cylindrical filter 5 on the outer peripheral surface portion. Both ends of the cylindrical filter 5 are fixed to the side wall plates 12 and 13 with the exhaust space 15 of the exhausted clean air 14 in between.
- the side wall plate 12 on the one side has an air introduction port 16 communicating with the air supply ring 9 of the cylindrical filter 5, and the air introduction port 16 is not shown.
- a distal end portion of a compressed air supply pipe 17 that feeds compressed air by a blower is connected.
- an irradiation path 20 for soft X-rays 19 irradiated from the soft X-ray ionizer 18 constituting the soft X-ray irradiation unit 2, and Ionized clean air jet 3 at the downstream end of guide vessel 4 is installed in series in the air blowing direction Has been.
- the soft X-ray irradiator 2 has a soft X-ray ionizer 18 penetrating and fixed to the one side wall plate 12 facing the irradiation passage 20 of the guide container 4 having the above-described configuration. Is formed.
- 21 is a cable for supplying power from the power source 22 to the soft X-ray ionizer 18.
- the cylindrical filter 5 is soft from the soft X-ray ionizer 18.
- a shielding member 23 for preventing direct irradiation of the X-ray 19 is disposed so as to cover the cylindrical filter 5.
- the shielding member 23 is disposed with an inner cover 24, an outer cover 25, a force inner cover 24, and an outer cover 25 with a gap 26 between the inner cover 24 and the outer cover 25.
- a plurality of horizontally elongated ventilation slits 27 and 28 that serve as passages for the clean air 14 from the cylindrical filter 5 are opened in a staggered manner so as not to communicate with each other in the blowing direction.
- the clean air 14 is forced to meander and flow to turbulent flow while preventing straightness.
- the inner cover 24 and the outer cover 25 may have a force polygonal shape formed in a cylindrical shape.
- the shielding member 23 having the above-described configuration is disposed with a spacing portion 29 between the inner cover 24 and the cylindrical filter 5, and on the side wall plates 12 and 13 of the guide container 4. Both ends of the shielding member 23 are fixedly attached.
- the ionized clean air ejection portion 3 has guide pieces 31 that project outwardly on both sides in the longitudinal direction of the downstream side surface 30 of the guide container 4 and project on the downstream side surface 30.
- the clean air 14 from the cylindrical filter 5 is irradiated on the semiconductor or the liquid crystal substrate B only with the clean air 35 that is ionized by irradiating the soft X-rays 19 in the irradiation passage 20.
- An ejection device 36 is formed to prevent the soft X-ray 19 from leaking out of the guide container 4.
- the ejection device 36 includes an ejection guide plate 37 and a slit forming plate 38 that is attached and fixed to the ejection guide plate 37.
- the ejection guide plate 37 protrudes from a guide cylinder 42 provided with a bowl-shaped recess 41 opened in the upstream direction at the center of a rectangular substrate 40 having bent pieces 39 suspended from both side edges.
- a vent hole 43 through which purified air 35 ionized flows in the center of the downstream side of the recess 41, and soft X-rays 19 are formed on the inner peripheral wall surface of the recess 41 of the guide tube 42.
- the shield rod 45 is fixed to the soft X-ray 19 so that the soft X-ray 19 does not directly irradiate the vent hole 43, and the soft X-ray 19 is prevented from leaking out of the guide container 4.
- the slit forming plate 38 constituting the jetting device 36 is formed with a slit 50 for jetting the clean air 35 that has been ionized in the longitudinal direction of the center by two slit constituent pieces 46 and 47. It is configured to be able to. That is, the slit forming plate 38 is a saddle-shaped notch that faces the inner side of each of the two slit component pieces 46 and 47 having a width that can be inserted between the bent pieces 39 of the ejection guide plate 37.
- the cut slits 50 and 49 of the clean air 35 which is horizontally long in the central longitudinal direction are formed by the respective notches 48 and 49. It is formed so that it can be provided.
- the slit constituting pieces 46 ⁇ 47 constituting the slit forming plate 38 are inserted between the bent pieces 39 of the ejection guide plate 37 so as to abut the notches 48, 49.
- the guide cylinder 42 is inserted into the communication hole 34 of the long cylindrical body 11 and the through hole 32 of the guide plate 33, and the ejection device 36 is integrally connected and fixed to the long cylindrical body 11 with screws 51. Is formed.
- reference numeral 52 denotes a pressure gauge that displays the pressure of the compressed air 53 fed into the cylindrical filter 5.
- the clean air 14 ejected into the spacing portion 29 with a uniform air volume in the longitudinal direction is ejected from the ventilation slit 27 of the inner cover 24 to the spacing portion 26 between the inner cover 24 and the outer cover 25.
- the gas is ejected from the ventilation slit 28 of the outer cover 25 to the exhaust space 15 outside the shielding member 23 and flows into the irradiation passage 20 constituting the soft X-ray irradiation unit 2 on the downstream side.
- the shielding member 23 By providing the shielding member 23, the clean air 14 ejected from the entire circumferential surface of the cylindrical filter 5 turbulently flows in the inner and outer covers 24 and 25 constituting the shielding member 23, and is uniform. It flows into the irradiation passage 20 at a flow velocity.
- the soft X-ray ionizer 18 irradiates the soft X-ray 19 into the irradiation passage 20. Then, the clean air 14 that has flowed into the irradiation passage 20 with a uniform air volume in the longitudinal direction is ionized 54 (+ ions, ⁇ ions) by the soft X-rays 19.
- the ionized clean air 35 which is sent to the respective jetting devices 36 on the downstream side with a uniform air volume in the longitudinal direction, is centered on the downstream side surface 30 by the guide pieces 31 of the guide plates 33. And then flows down along the inner peripheral wall surface of the bowl-shaped recess 41 constituting each ejection device 36, and the cylindrical filter 5 causes the clean air 35 to flow in the longitudinal direction with a uniform air volume.
- the air is ejected onto the substrate B with a uniform air volume in the longitudinal direction of the clean air ejection part 3 ionized from the slit 50 through the vent hole 43, neutralizing the static electricity on the surface of the substrate B. It is removed.
- the pressure in the cylindrical filter 5 is made higher than the pressure in the guide container 4.
- the opening width of the ejection slit 50 is set.
- the shielding member 23 formed by opening the plurality of ventilation slits 27 and 28 in the zigzag shape so as not to communicate with the inner cover 24 and the outer cover 25 in the diameter direction, Since the structure surrounding the cylindrical filter 5 is employed, the filter medium 6 of the cylindrical filter 5 is not exposed to the soft X-rays 19 and the filter medium 6 is not deteriorated.
- a bowl-shaped recess 41 and a vent hole 43 so as to cross the recess 41 on the inner peripheral wall surface of the bowl-shaped recess 41. Since the shielding rod 45 is disposed with an interval of 4 and 4 and the irradiation direction of the soft X-ray 19 and the exhaust direction of the ionized clean air 35 are 90 degrees out of phase, the soft X-ray 19 Since the concave portion 41 has a bowl shape, the secondary soft X-rays are in the upstream direction or even if the soft X-rays 19 are irradiated to the inner peripheral wall surface of the concave portion 41.
- the shielding rod 45 prevents the straight movement of the soft X-ray 19 directly into the vent hole 43, which is harmful to the human body. However, it does not leak outside the guide container 4.
- the shielding rod 45 having a circular cross section reduces the fluid resistance when the ionized clean air 35 is ejected from each ejection slit 50 and is uniform in the longitudinal direction from each ejection slit 50. Clean air 35 ionized with an appropriate air volume can be jetted onto the substrate B.
- FIG. 1 is a longitudinal sectional view of an electrostatic removal device for a semiconductor substrate and a surface of a liquid crystal substrate in the semiconductor and liquid crystal manufacturing process of the present invention, as viewed from the side.
- FIG. 2 is a longitudinal sectional view as seen from the front side.
- FIG. 3 is a perspective view of the entire electrostatic removal apparatus for the semiconductor substrate and the surface of the liquid crystal substrate in the semiconductor and liquid crystal manufacturing process of the present invention.
- FIG. 4 is an exploded perspective view showing the semiconductor substrate and the liquid crystal substrate surface in the manufacturing process of the semiconductor and liquid crystal substrate according to the present invention with the guide container omitted in the electrostatic removal device.
- FIG. 5 It is an assembly disassembled perspective view of the ejection part of the ionized clean air in the electrostatic removal apparatus of a board surface.
- Fig. 6 is a plan view of a slit forming plate constituting an ejected portion of ionized clean air in the electrostatic removal apparatus for the semiconductor substrate and the liquid crystal substrate surface in the semiconductor and liquid crystal manufacturing process of the present invention.
- FIG. 7 is a perspective view of a principal part showing a usage state of the electrostatic removal device on the surface of the semiconductor substrate and the liquid crystal substrate in the semiconductor and liquid crystal manufacturing process of the present invention.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Elimination Of Static Electricity (AREA)
- Cleaning Or Drying Semiconductors (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2005800518908A CN101297609A (zh) | 2005-10-21 | 2005-10-21 | 半导体及液晶生产过程中的半导体及液晶衬底表面的静电去除装置 |
EP05795915A EP1947914A1 (en) | 2005-10-21 | 2005-10-21 | Apparatus for eliminating static electricity on semiconductor substrate and liquid crystal substrate surfaces in semiconductor and liquid crystal manufacturing processes |
US12/090,316 US20080278880A1 (en) | 2005-10-21 | 2005-10-21 | Remover of Static Charges on Surfaces of Substrates of Semiconductors and Liquid Crystals in the Processes of Their Manufacture |
PCT/JP2005/019401 WO2007046151A1 (ja) | 2005-10-21 | 2005-10-21 | 半導体および液晶製造工程における半導体基板および液晶基板表面の静電除去装置 |
JP2007540868A JPWO2007046151A1 (ja) | 2005-10-21 | 2005-10-21 | 半導体および液晶製造工程における半導体基板および液晶基板表面の静電除去装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/019401 WO2007046151A1 (ja) | 2005-10-21 | 2005-10-21 | 半導体および液晶製造工程における半導体基板および液晶基板表面の静電除去装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007046151A1 true WO2007046151A1 (ja) | 2007-04-26 |
Family
ID=37962253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/019401 WO2007046151A1 (ja) | 2005-10-21 | 2005-10-21 | 半導体および液晶製造工程における半導体基板および液晶基板表面の静電除去装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080278880A1 (ja) |
EP (1) | EP1947914A1 (ja) |
JP (1) | JPWO2007046151A1 (ja) |
CN (1) | CN101297609A (ja) |
WO (1) | WO2007046151A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015086635A (ja) * | 2013-11-01 | 2015-05-07 | 三菱化学株式会社 | 太陽電池一体型部材 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6378890B2 (ja) * | 2013-03-01 | 2018-08-22 | 株式会社荏原製作所 | 基板処理方法 |
CN103979786B (zh) * | 2014-05-16 | 2015-12-09 | 深圳市华星光电技术有限公司 | 单板玻璃基板的切割方法 |
US9839107B2 (en) * | 2014-07-23 | 2017-12-05 | Moxtek, Inc. | Flowing-fluid X-ray induced ionic electrostatic dissipation |
US9779847B2 (en) * | 2014-07-23 | 2017-10-03 | Moxtek, Inc. | Spark gap X-ray source |
US10524341B2 (en) * | 2015-05-08 | 2019-12-31 | Moxtek, Inc. | Flowing-fluid X-ray induced ionic electrostatic dissipation |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005019044A (ja) * | 2003-06-24 | 2005-01-20 | Kondo Kogyo Kk | 半導体および液晶製造工程における半導体基板および液晶基板表面の静電除去装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68916936T2 (de) * | 1989-03-07 | 1995-03-09 | Takasago Thermal Engineering | Anordnung zum Abführen statischer Elektrizität von aufgeladenen Gegenständen in Reinräumen. |
JP4504493B2 (ja) * | 1999-07-05 | 2010-07-14 | 孝次 阿武 | 電球型の照明灯付き空気清浄装置 |
-
2005
- 2005-10-21 EP EP05795915A patent/EP1947914A1/en not_active Withdrawn
- 2005-10-21 CN CNA2005800518908A patent/CN101297609A/zh active Pending
- 2005-10-21 US US12/090,316 patent/US20080278880A1/en not_active Abandoned
- 2005-10-21 JP JP2007540868A patent/JPWO2007046151A1/ja active Pending
- 2005-10-21 WO PCT/JP2005/019401 patent/WO2007046151A1/ja active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005019044A (ja) * | 2003-06-24 | 2005-01-20 | Kondo Kogyo Kk | 半導体および液晶製造工程における半導体基板および液晶基板表面の静電除去装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015086635A (ja) * | 2013-11-01 | 2015-05-07 | 三菱化学株式会社 | 太陽電池一体型部材 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2007046151A1 (ja) | 2009-04-23 |
US20080278880A1 (en) | 2008-11-13 |
EP1947914A1 (en) | 2008-07-23 |
CN101297609A (zh) | 2008-10-29 |
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