WO2004046827A1 - ガス発生量の少ないペリクル - Google Patents
ガス発生量の少ないペリクル Download PDFInfo
- Publication number
- WO2004046827A1 WO2004046827A1 PCT/JP2003/014413 JP0314413W WO2004046827A1 WO 2004046827 A1 WO2004046827 A1 WO 2004046827A1 JP 0314413 W JP0314413 W JP 0314413W WO 2004046827 A1 WO2004046827 A1 WO 2004046827A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pellicle
- photomask
- organic compounds
- volatile organic
- generated
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
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
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/62—Pellicles, e.g. pellicle assemblies, e.g. having membrane on support frame; Preparation thereof
-
- 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
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
Definitions
- the present invention relates to a pellicle used for protecting a photomask in a photolithographic process for patterning semiconductor devices such as ICs and LSIs and liquid crystal display devices. It is. BACKGROUND ART
- a photomask in which a circuit pattern is formed on the surface of a glass plate, and a photomask are used to transfer the circuit pattern by exposing the circuit pattern onto a silicon wafer on which a resist is applied. Done.
- this step if exposure is performed in a state where foreign matter such as dust adheres to the circuit pattern on the photomask, the foreign matter is also transferred onto the wafer and becomes a wafer for defective products.
- a pellicle is mounted on a photomask, and exposure is performed through the pellicle.
- this method foreign substances can be prevented from entering the circuit pattern of the photomask, and even if foreign substances may adhere to the veloci- lized film, they are transferred onto the wafer. Therefore, the yield at the time of manufacturing semiconductor devices and the like is improved.
- An object of the present invention is to remove a substance causing a precipitate from a pellicle itself in advance, so that even if exposure using KrF excimer laser light or ArF excimer laser light is performed, There is no formation of foreign matter precipitates on the photomask at the time of light irradiation and storage ( ⁇ Keep the vehicle attached to the photomask in the case until the next use).
- An object of the present invention is to provide a pellicle capable of maintaining accurate pattern accuracy for a long period of time and a method of manufacturing the pellicle.
- An object of the present invention is to eliminate a substance causing a precipitate from a pellicle itself in advance, so that even if exposure using KrF excimer laser light or ArF excimer laser light is performed, laser light irradiation
- An object of the present invention is to provide a pellicle capable of maintaining accurate pattern accuracy for a long period of time without forming a deposit of a foreign substance on a photomask during storage and a method of manufacturing the pellicle.
- the present invention captures an organic compound component generated from a pellicle by a nitrogen stream of 100 m 1 / min at room temperature (26 ° C.) for 24 hr, and the 2,6-diphenyl p-phenylene
- the total weight of volatile organic compounds detected when the gas adsorbed by the lenoxide-based porous polymer bead adsorbent, heated at 260 ° C for 15 minutes and thermally desorbed, and analyzed is the pellicle weight.
- Organic compounds generated from the pellicle are captured by a nitrogen stream of 100 m 1 / min at room temperature (26.C) for 24 hr, and 2,6-diphenyl-p-phenylenoxide system
- the total weight of volatile organic compounds detected when the gas adsorbed by the porous polymer bead adsorbent, heated at 260 ° C for 15 minutes and thermally desorbed, and analyzed, is 0% based on the weight of the pellicle.
- a method for producing a pellicle having a concentration of 5 ppm or less, the method comprising a step of removing a volatile organic compound from the pellicle. Provide a way.
- the present invention provides an organic compound component generated from the pellicle. , 24 hr, room temperature (26 ° C) at 100 m 1 / min with a nitrogen stream, and 2,6-diphenyl-p-phenylene oxide porous polymer beads Adsorbed by adsorbent Pelicles whose total weight of volatile organic compounds detected when analyzing the gas generated by heating and desorbing by heating at 260 ° C for 15 minutes is less than 0.5 ppm with respect to the weight of the pellicle are The present invention provides a photomask with a pellicle attached to the photomask.
- the present invention captures an organic compound component generated from a pellicle by a nitrogen stream of 100 m 1 / min at room temperature (26 ° C.) for 24 hours, and forms 2,6-diphenyl-1-p —Adsorbed by the phenylene oxide porous polymer bead adsorbent, heated at 260 ° C for 15 minutes and thermally desorbed.
- the total weight of volatile organic compounds detected when analyzing the generated gas is Further, the present invention provides a method for manufacturing a semiconductor device using a photomask in which a pellicle having a pellicle weight of 0.5 ppm or less is mounted.
- the present invention captures an organic compound component generated from a pellicle by a nitrogen stream of 100 m 1 / min at room temperature (26 ° C.) for 24 hr, and 2,6-dipheninole p-phenylenoxy.
- the total weight of volatile organic compounds detected when the gas adsorbed by the porous polymer bead adsorbent and heated and desorbed by heating at 260 ° C for 15 minutes is analyzed is the pellicle weight.
- the present invention also provides a method for using a pellicle having a concentration of 0.5 ppm or less with respect to the pellicle used for dust prevention in a semiconductor device manufacturing process. ' ⁇ BEST MODE FOR CARRYING OUT THE INVENTION
- the pellicle of the present invention refers to a conventionally known pellicle, for example, a pellicle film stretched over one end of a pellicle frame made of a metal such as aluminum via an adhesive, and an adhesive applied to the other end. It is fixed to a photomask for use.
- a known adhesive that can fix foreign substances may be applied to the inside of the pellicle frame.
- a liner is attached to the surface to which the adhesive has been applied after the pellicle is manufactured and before it is used.
- the pellicle may be manufactured using a member from which volatile organic compounds generated from the pellicle have been removed in advance.
- the pellicle may be manufactured by removing the pellicle.
- a material called an inner wall coating agent is applied to the inside of a frame to remove foreign substances. Then, apply a photomask adhesive on the underside of the frame to adhere to the photomask, attach a liner, apply an adhesive for attaching the film to the upper side of the pellicle frame, and attach the film And usually stored in a pellicle storage case.
- the volatile organic compound component may be removed for each member at a stage before the production of the pellicle, but after the production, it is performed for each pellicle and case. Is also good.
- the volatile organic compound component contained in the pellicle is defined as a force contained in a slight amount in a photomask adhesive, a film adhesive, or an inner wall coating agent used in the pellicle, or generated by some cause.
- a saturated or unsaturated aliphatic hydrocarbon compound or aromatic hydrocarbon and may have a functional group such as ketone, ester, or carboxylic acid.
- nonane de Can
- pendecane 1-pentene
- 2-methyloctane 4-methyloctane
- pendecene cyclooctane
- dodecene 2-methyl_1-condecene
- dodecane tetradecane
- pentadecane octadecane and the like.
- Ketone compounds include acetone, methylethyl ketone, cyclohexanone, 2-methyl-3-heptanone, 2-heptanone, and the like.
- ester compound examples include ethyl acetate, butyl acetate, n-butyl acetate, methyl methacrylate, and the like.
- alcohols include isopropanol, butanol, 2-ethylhexanol, and propylene glycol monomethyl ether.
- aromatic compound examples include toluene, m-xylene, p-xylene, benzoic acid, cumene and the like.
- the pellicle or the material of the pellicle is placed in a gas flow, heated, and placed in a Z or reduced pressure environment.
- the gas used when the gas is placed under circulation is not particularly limited, but includes nitrogen, air, helium, argon and the like.
- the flow rate of the gas is not particularly limited, but preferably a gas flow rate of 100 ml / min from lmlZmin force is used. This is because if the gas flow rate is too low, it takes too much time to remove the volatile organic compound components, and if the gas flow rate is too high, foreign substances adhere to the pellicle.
- the heating method includes a method of irradiating light to the pellicle or each material of the pellicle, a method of directly applying a temperature, a method of applying vibration such as ultrasonic waves, a method of applying pressure, and the like.
- a method of irradiating light and a method of directly applying a temperature are preferably used. This makes it possible to reduce the concentration of the volatile organic compound component contained in the pellicle.
- the inner wall coating agent and the photomask adhesive applied to the lower side of the frame are Since it is considered that the substance itself may cause the generation of volatile substances, it is necessary to perform a treatment for removing foreign substances. In that case, heating the material to a temperature below its decomposition temperature is effective for foreign matter removal. Usually, it is preferred to heat at 100 ° C. to 200 ° C., more preferably at 140 ° C. to 180 ° C. At this time, performing the treatment in a nitrogen stream is effective not only for preventing oxidation of the material but also for removing volatile substances. Further, it is preferable to remove the volatile organic compound by reducing the pressure in terms of reducing the processing temperature and the processing time.
- these treatments are as follows:
- the composition containing the volatile organic compound is heated and decompressed to remove the volatile organic compound. After the removal, the inner wall coating agent and the photomask adhesive may be manufactured, or the volatile organic compound may be removed after the photomask adhesive is manufactured.
- Removal of the volatile organic compounds from the completed pellicle must be performed at a temperature that does not affect the quality of the completed pellicle, resulting in a limited heating temperature.
- the treatment is carried out by heating to 40 to 100 ° C.
- the temperature is too high, the pellicle film will be deformed, causing troubles in circuit pattern creation, and also, inner wall coating agents and photomasks
- the adhesive may be deformed and not completely adhered when applied to the photomask, which may hinder the dustproof function. In this case, it is necessary to adjust the heating time because the temperature cannot be increased to the temperature at which volatile organic substances are removed from the components of the pellicle.
- the temperature for heating each member of the pellicle is from 40 ° C. to 200 ° C., and more preferably from 40 ° C. to 180 ° C.
- the temperature for heating roughly in a pellicle state is preferably 40 to 100 ° C.
- the reduced pressure environment is defined by using a known vacuum pump, and the concentration of the volatile organic compound component is reduced by placing the pellicle or each material of the pellicle under the reduced pressure environment. Is possible You.
- the method for reducing the concentration of the volatile organic compound component contained in the pellicle forest material includes the following methods other than those described above. However, reprecipitation purification is also effective.
- the method of measuring the concentration of the volatile organic compound component is performed by gas chromatography (GC) analysis.
- GC gas chromatography
- the method of measuring gas generated from a pellicle that generates a small amount of gas or a component that constitutes the pellicle put the pellicle in a glass container, flow gas in the container for a certain period of time while maintaining a constant temperature, and leave the container. The resulting gas is collected in a collection tube, and the amount of the substance is quantified by GC analysis.
- each material of the pellicle it can be analyzed by a thermal absorption cold trap (TCT-GC) method.
- TCT-GC thermal absorption cold trap
- Volatile substances generated from the pellicle, pellicle members, etc. can be collected and analyzed by the collecting material.
- An adsorbent (a weakly polar porous polymer bead based on 2,6-diphenyl-p-phenylenoxide) was used for collection. The characteristics of the adsorbent used below are shown below.
- Density 0. 2 5 g / cm 3
- adsorbent those having a trade name of TENAX-GR or TENAX-TA (manufactured by GL Science) can be used.
- a collection tube JHS— filled with 3 ml of a nitrogen stream of 100 ml / min at room temperature (26 ° C) for 24 hr at room temperature (26 ° C) was used for the organic compound component generated from the pellicle. 100A collection tube) to obtain a sample.
- the sample was introduced into the GC unit by using a headspace sampler (JHS-1000A (manufactured by Nippon Kagaku Kogyo Co., Ltd.)), heating the collection tube at 260 ° C for 15 min and thermally desorbing it.
- the analyzed gas was analyzed by the GCZMS method
- Table 1 GCZMS analysis conditions are shown in Table 1.
- the oven used had a cleanness of 100 to prevent foreign matter from adhering to the pellicle. It is considered that volatile organic compounds from photomask adhesives can be removed most from the pellicle adhesive (17.1341 g) in an oven set at 50 ° C under atmospheric pressure for 24 hr. It was left still with the liner removed.
- the mixture was passed through a filled collection tube, and the organic matter was concentrated with an adsorbent and sampled.
- the heated pellicle is attached to a photomask, and 50 is applied.
- the sample was allowed to stand still in the oven of C for 3 hours to confirm the generation of foreign substances.
- both samples were irradiated with an Ar excimer laser beam. Irradiation conditions were as follows: a transmission frequency of 500 Hz, an energy density of lmj / cm2Zpulse, and irradiation up to 2000 J / cm2.
- a transmission frequency of 500 Hz an energy density of lmj / cm2Zpulse
- Table 2 shows the amount of gas generated from the pellicles.
- a pellicle obtained in this manner was pasted with a photomask in the same manner as in Example 1 and irradiated with an ArF excimer laser beam, the laser beam-irradiated portion of the pellicle film turned white, and a diameter of 0 mm was placed on the photomask. Precipitation of foreign matter of about 2 ⁇ was confirmed.
- Table 3 shows the results.
- Example 2 A photomask adhesive for adhering a pellicle frame to a photomask was heated to 200 ° C, and heat-treated for 4 hr under a reduced pressure environment of 350 000 Pa. Substances generated from mask adhesives have been reduced. The amount of substance generated from this photomask adhesive is Measured by T-GC method. A temperature of 100 ° C was applied to 20 mg of the photomask adhesive for 3 minutes, and the amount of gas generated therefrom was measured. As a result, the amount of gas generated was reduced to about 1/8 compared to the untreated photomask adhesive.
- the inner wall coating agent was dissolved in acetone to a concentration of 20 wt% and placed in an eggplant type flask. Thereafter, the substrate was left for 6 hours at 500 Pa and 120 ° C to reduce substances generated from the inner wall coating agent in advance.
- the amount of substances generated from this inner wall coating agent was measured by the TCT-GC method. A temperature of 100 ° C. was applied to 20 mg of the inner wall coating agent for 3 minutes, and the amount of gas generated therefrom was measured. As a result, the amount of gas generated up to about 1 Z5 was smaller than that of the untreated inner wall coating agent.
- a pellicle was manufactured using the photomask adhesive and the inner wall coating agent. Then, the sample was stuck on a photomask in the same manner as in Example 1 and allowed to stand still in an oven at 50 ° C for 3 hours to obtain a sample for confirming foreign matter generation. This sample was irradiated with an ArF laser in the same manner as in Example 1. As a result, it was observed after irradiation of 100, 100, 2000, 500, 000, 200,000 J / cm2.In any case, the pellicle was observed. No foreign matter was observed on the film and the photomask.
- Pellicles were produced using untreated photomask adhesive. Then, the sample was stuck on a photomask in the same manner as in Example 1 and allowed to stand in an oven at 50 ° C. for 3 hours to obtain a sample for confirming foreign matter generation. This sample was irradiated with an ArF laser in the same manner as in Example 1. As a result, when observed after irradiation of 100 J cm 2, foreign matter was found to have formed on the pellicle film and photomask, and between the pellicle film and photomask. 0 Five foreign substances were confirmed.
- the pellicle of the present invention By using the pellicle of the present invention, even if exposure using a KrF or ArF excimer laser beam is performed, it can be applied to a photomask during laser beam irradiation and during storage. Prevents the formation of foreign matter precipitates and maintains accurate pattern accuracy for a long period of time, which is important for industrial applications.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Packaging Frangible Articles (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/534,554 US20060115741A1 (en) | 2002-11-15 | 2003-11-13 | Pellicle with small gas generation amount |
| JP2004553163A JPWO2004046827A1 (ja) | 2002-11-15 | 2003-11-13 | ガス発生量の少ないペリクル |
| CN2003801032620A CN1711502B (zh) | 2002-11-15 | 2003-11-13 | 用于光掩膜防护用的薄膜及其制造方法及使用方法、带有其的光掩膜及半导体元件制造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-332933 | 2002-11-15 | ||
| JP2002332933 | 2002-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004046827A1 true WO2004046827A1 (ja) | 2004-06-03 |
Family
ID=32321678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/014413 Ceased WO2004046827A1 (ja) | 2002-11-15 | 2003-11-13 | ガス発生量の少ないペリクル |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20060115741A1 (ja) |
| JP (1) | JPWO2004046827A1 (ja) |
| KR (1) | KR100712464B1 (ja) |
| CN (1) | CN1711502B (ja) |
| TW (1) | TW200422793A (ja) |
| WO (1) | WO2004046827A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006184822A (ja) * | 2004-12-28 | 2006-07-13 | Shin Etsu Chem Co Ltd | フォトリソグラフィ用ペリクル及びペリクルフレーム |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007333910A (ja) * | 2006-06-14 | 2007-12-27 | Shin Etsu Chem Co Ltd | ペリクル |
| CN101430501B (zh) * | 2007-11-06 | 2015-04-01 | 中芯国际集成电路制造(上海)有限公司 | 一种修正光刻胶图形的方法 |
| FR2926145A1 (fr) * | 2008-01-04 | 2009-07-10 | Alcatel Lucent Sas | Procede de fabrication de photomasques. |
| EP2077467B9 (fr) * | 2008-01-04 | 2014-09-03 | Adixen Vacuum Products | Procédé de fabrication de photomasques et dispositif pour sa mise en oeuvre |
| JP6308592B2 (ja) * | 2014-04-02 | 2018-04-11 | 信越化学工業株式会社 | Euv用ペリクル |
| JP7040427B2 (ja) | 2018-12-03 | 2022-03-23 | 信越化学工業株式会社 | ペリクル、ペリクル付露光原版、露光方法及び半導体の製造方法 |
| CN112225991A (zh) * | 2020-10-16 | 2021-01-15 | 江苏中恒宠物用品股份有限公司 | 一种低气味宠物用pp塑料及其制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001109134A (ja) * | 1999-10-13 | 2001-04-20 | Asahi Kasei Corp | リソグラフィー用ペリクル |
| JP2001147518A (ja) * | 1999-11-19 | 2001-05-29 | Asahi Kasei Corp | ペリクル |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4931404A (en) * | 1986-12-22 | 1990-06-05 | Abbott Laboratories | Method and device for ketone measurement |
| TW420770B (en) * | 1998-09-22 | 2001-02-01 | Mitsui Chemicals Inc | Pellicle film, method of preparing the same and exposure method |
| JP3434731B2 (ja) * | 1999-06-09 | 2003-08-11 | Necエレクトロニクス株式会社 | ペリクル及びそのケース |
| US6566021B2 (en) * | 2001-07-26 | 2003-05-20 | Micro Lithography, Inc. | Fluoropolymer-coated photomasks for photolithography |
| WO2004040374A2 (en) * | 2002-10-29 | 2004-05-13 | Dupont Photomasks, Inc. | Photomask assembly and method for protecting the same from contaminants generated during a lithography process |
-
2003
- 2003-11-11 TW TW092131448A patent/TW200422793A/zh not_active IP Right Cessation
- 2003-11-13 WO PCT/JP2003/014413 patent/WO2004046827A1/ja not_active Ceased
- 2003-11-13 JP JP2004553163A patent/JPWO2004046827A1/ja active Pending
- 2003-11-13 US US10/534,554 patent/US20060115741A1/en not_active Abandoned
- 2003-11-13 CN CN2003801032620A patent/CN1711502B/zh not_active Expired - Fee Related
- 2003-11-13 KR KR1020057008459A patent/KR100712464B1/ko not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001109134A (ja) * | 1999-10-13 | 2001-04-20 | Asahi Kasei Corp | リソグラフィー用ペリクル |
| JP2001147518A (ja) * | 1999-11-19 | 2001-05-29 | Asahi Kasei Corp | ペリクル |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006184822A (ja) * | 2004-12-28 | 2006-07-13 | Shin Etsu Chem Co Ltd | フォトリソグラフィ用ペリクル及びペリクルフレーム |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200422793A (en) | 2004-11-01 |
| KR100712464B1 (ko) | 2007-04-27 |
| TWI323390B (ja) | 2010-04-11 |
| US20060115741A1 (en) | 2006-06-01 |
| JPWO2004046827A1 (ja) | 2006-03-16 |
| KR20050074603A (ko) | 2005-07-18 |
| CN1711502A (zh) | 2005-12-21 |
| CN1711502B (zh) | 2010-04-14 |
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