KR20000017531A - 양면점착시트 및 그 사용 방법 - Google Patents
양면점착시트 및 그 사용 방법 Download PDFInfo
- Publication number
- KR20000017531A KR20000017531A KR1019990035415A KR19990035415A KR20000017531A KR 20000017531 A KR20000017531 A KR 20000017531A KR 1019990035415 A KR1019990035415 A KR 1019990035415A KR 19990035415 A KR19990035415 A KR 19990035415A KR 20000017531 A KR20000017531 A KR 20000017531A
- Authority
- KR
- South Korea
- Prior art keywords
- double
- sensitive adhesive
- pressure
- adhesive sheet
- wafer
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6835—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
- B24B7/228—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding thin, brittle parts, e.g. semiconductors, wafers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67132—Apparatus for placing on an insulating substrate, e.g. tape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6835—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L21/6836—Wafer tapes, e.g. grinding or dicing support tapes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support
- H01L2221/68327—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support used during dicing or grinding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support
- H01L2221/6834—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support used to protect an active side of a device or wafer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
- Y10T156/1168—Gripping and pulling work apart during delaminating
- Y10T156/1179—Gripping and pulling work apart during delaminating with poking during delaminating [e.g., jabbing, etc.]
- Y10T156/1184—Piercing layer during delaminating [e.g., cutting, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Dicing (AREA)
Abstract
Description
평가 상태 | ||||
(1)g/150㎜ | (2)g/10㎜□ | (3)g/10㎜□ | (4)g/10㎜□ | |
실시예 1 | 20 | 5 | 5 | 5 |
실시예 2 | 40 | 20 | 18 | 18 |
실시예 3 | 40 | 10 | 10 | 10 |
실시예 4 | 80 | 40 | 39 | 40 |
실시예 5 | 10 | 3 | 5 | 5 |
실시예 6 | 15 | 5 | 5 | 3 |
실시예 7 | 20 | 5 | 5 | 3 |
비교예 1 | 웨이퍼가 파손됨 | 웨이퍼가 파손됨 | 웨이퍼가 파손됨 | 웨이퍼가 파손됨 |
비교예 2 | 웨이퍼가 파손됨 | 웨이퍼가 파손됨 | 웨이퍼가 파손됨 | 웨이퍼가 파손됨 |
평가 상태 | ||||
(1) | (2) | (3) | (4) | |
실시예 1 | 임의 | - | - | - |
실시예 2 | 유리면 | - | - | - |
실시예 3 | 임의 | - | - | - |
실시예 4 | 유리면 | - | - | - |
실시예 5 | 임의 | - | - | - |
실시예 6 | 유리면 | - | - | - |
실시예 7 | 유리면 | - | - | - |
비교예 1 | 웨이퍼가 파손됨 | - | - | - |
비교예 2 | 웨이퍼가 파손됨 | - | - | - |
Claims (15)
- 수축성기재 및 그 기재의 양면에 설치된 점착제층을 포함하고, 적어도 한쪽의 점착제층이 에너지선 경화형 점착제로 된 것을 특징으로 하는 양면점착시트.
- 제1항에 있어서, 양쪽의 점착제층이 에너지선 경화형 점착제로 된 것을 특징으로 하는 양면점착시트.
- 제1항에 있어서, 수축성기재에 다수의 미세한 절삭자국이 마련된 것을 특징으로 하는 양면점착시트.
- 제2항에 있어서, 수축성기재에 다수의 미세한 절삭자국이 마련된 것을 특징으로 하는 양면점착시트.
- 제1항에 있어서, 경질판 위에 일시적으로 지지된 피가공물의 가공동안, 이것을 고정하거나 보호하기 위해서 사용되는 양면점착시트.
- 제2항에 있어서, 경질판 위에 일시적으로 지지된 피가공물의 가공동안, 이것을 고정하거나 보호하기 위해서 사용되는 양면점착시트.
- 제3항에 있어서, 경질판 위에 일시적으로 지지된 피가공물의 가공동안, 이것을 고정하거나 보호하기 위해서 사용되는 양면점착시트.
- 제4항에 있어서, 경질판 위에 일시적으로 지지된 피가공물의 가공동안, 이것을 고정하거나 보호하기 위해서 사용되는 양면점착시트.
- 가공될 피가공물을, 수축성기재 및 그 기재의 양면에 설치된 점착제층을 포함하고 적어도 한쪽의 점착제층이 에너지선 경화형 점착제로 된 양면점착시트의 한쪽 에너지선 경화형 점착제층에 부착시키고, 다른 점착제층을 경질판 위에 부착시켜 피가공물을 경질판 위에 지지하고;피가공물을 가공하고;에너지선 경화형 점착제층에 에너지선을 조사하여 경화시키고, 동시에 수축성기재를 수축시키고; 그리고가공된 피가공물을, 조사 및 경화된 에너지선 경화형 점착제층으로부터 박리하는 공정을 포함하는 양면점착시트의 사용 방법.
- 제9항에 있어서, 양쪽의 점착제층이 에너지선 경화형 점착제로 된 것을 특징으로 하는 양면점착시트의 사용방법.
- 제9항에 있어서, 수축성기재에 다수의 미세한 절삭자국이 마련된 것을 특징으로 하는 양면점착시트의 사용방법.
- 제10항에 있어서, 수축성기재에 다수의 미세한 절삭자국이 마련된 것을 특징으로 하는 양면점착시트의 사용방법.
- 제9항에 있어서, 가공될 피가공물은 그 표면에 회로패턴이 형성된 반도체 웨이퍼이고, 그 가공은 웨이퍼의 이면 연삭인 것을 특징으로 하는 양면점착시트의 사용방법.
- 제9항에 있어서, 가공될 피가공물은 그 표면에 회로 패턴이 형성된 반도체 웨이퍼이고, 그 가공은 웨이퍼를 소자 칩으로 다이싱하는 과정인 것을 특징으로 하는 양면점착시트의 사용방법.
- 제9항에 있어서, 가공될 피가공물은 그 표면에 회로 패턴이 형성된 반도체 웨이퍼이고, 그 가공은 웨이퍼의 이면 연삭 및 웨이퍼를 소자 칩으로 다이싱하는 과정이 임의의 순으로 수행되는 것을 특징으로 하는 양면점착시트의 사용방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1998-240170 | 1998-08-26 | ||
JP24017098 | 1998-08-26 | ||
JP10980699A JP3784202B2 (ja) | 1998-08-26 | 1999-04-16 | 両面粘着シートおよびその使用方法 |
JP1999-109806 | 1999-04-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000017531A true KR20000017531A (ko) | 2000-03-25 |
KR100655036B1 KR100655036B1 (ko) | 2006-12-07 |
Family
ID=26449521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990035415A KR100655036B1 (ko) | 1998-08-26 | 1999-08-25 | 양면점착시트 및 그 사용 방법 |
Country Status (10)
Country | Link |
---|---|
US (1) | US6398892B1 (ko) |
JP (1) | JP3784202B2 (ko) |
KR (1) | KR100655036B1 (ko) |
CN (1) | CN1147555C (ko) |
DE (1) | DE19940390A1 (ko) |
GB (1) | GB2340772B (ko) |
HK (1) | HK1023786A1 (ko) |
MY (1) | MY123333A (ko) |
SG (1) | SG82017A1 (ko) |
TW (1) | TW513480B (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020041280A (ko) * | 2000-11-27 | 2002-06-01 | 후지야마 겐지 | 반도체 펠릿 처리방법 및 장치 |
KR100814536B1 (ko) * | 2000-04-26 | 2008-03-17 | 린텍 코포레이션 | 실리콘 웨이퍼용의 보강재 및 상기 보강재를 이용한 ic 칩의 제조 방법 |
KR101527184B1 (ko) * | 2013-10-14 | 2015-06-09 | 도레이첨단소재 주식회사 | 전자 부품 공정용 양면 점착 백 테이프 및 이를 이용한 전자 부품의 분리방법 |
Families Citing this family (68)
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US7105226B2 (en) * | 1998-08-26 | 2006-09-12 | Lintec Corporation | Pressure sensitive adhesive double coated sheet and method of use thereof |
US6783620B1 (en) * | 1998-10-13 | 2004-08-31 | Matsushita Electronic Materials, Inc. | Thin-laminate panels for capacitive printed-circuit boards and methods for making the same |
US6114015A (en) * | 1998-10-13 | 2000-09-05 | Matsushita Electronic Materials, Inc. | Thin-laminate panels for capacitive printed-circuit boards and methods for making the same |
JP4275254B2 (ja) | 1999-06-17 | 2009-06-10 | リンテック株式会社 | 両面粘着シートに固定された物品の剥離方法および剥離装置 |
JP4137310B2 (ja) * | 1999-09-06 | 2008-08-20 | リンテック株式会社 | 両面粘着シートに固定された物品の剥離方法および剥離装置 |
JP4392732B2 (ja) | 2000-02-07 | 2010-01-06 | リンテック株式会社 | 半導体チップの製造方法 |
JP4230080B2 (ja) * | 2000-02-18 | 2009-02-25 | リンテック株式会社 | ウエハ貼着用粘着シート |
JP3768069B2 (ja) * | 2000-05-16 | 2006-04-19 | 信越半導体株式会社 | 半導体ウエーハの薄型化方法 |
JP2002075937A (ja) * | 2000-08-30 | 2002-03-15 | Nitto Denko Corp | 半導体ウエハの加工方法 |
KR20030033084A (ko) * | 2000-09-27 | 2003-04-26 | 스트라스바흐, 인코포레이티드 | 배면연마 테이프를 남겨두고 웨이퍼를 배면연마하는 방법 |
DE10048881A1 (de) | 2000-09-29 | 2002-03-07 | Infineon Technologies Ag | Vorrichtung und Verfahren zum planen Verbinden zweier Wafer für ein Dünnschleifen und ein Trennen eines Produkt-Wafers |
JP4109823B2 (ja) * | 2000-10-10 | 2008-07-02 | 株式会社東芝 | 半導体装置の製造方法 |
DE10052293A1 (de) * | 2000-10-20 | 2002-04-25 | B L E Lab Equipment Gmbh | Verfahren zum Aufbringen eines Substrats |
JP2002203822A (ja) * | 2000-12-28 | 2002-07-19 | Lintec Corp | 脆性部材の加工方法および両面粘着シート |
DE10065686C2 (de) * | 2000-12-29 | 2002-11-14 | Infineon Technologies Ag | Verfahren zur Handhabung eines dünnen Halbleiterwafers oder Substrats |
JP2002270560A (ja) * | 2001-03-07 | 2002-09-20 | Lintec Corp | ウエハの加工方法 |
JP4482243B2 (ja) * | 2001-03-13 | 2010-06-16 | 株式会社新川 | ダイのピックアップ方法及びピックアップ装置 |
WO2003041154A2 (en) * | 2001-11-07 | 2003-05-15 | Schlumberger Systemes | A method of manufacturing a plurality of assemblies |
DE10157153A1 (de) * | 2001-11-22 | 2003-09-04 | Tesa Ag | Verfahren zur Herstellung haftklebriger Stanzprodukte |
JP2003218063A (ja) * | 2002-01-24 | 2003-07-31 | Canon Inc | ウエハ貼着用粘着シート及び該シートを利用する加工方法 |
JP3911174B2 (ja) * | 2002-03-01 | 2007-05-09 | シャープ株式会社 | 半導体素子の製造方法および半導体素子 |
US7238421B2 (en) * | 2002-03-28 | 2007-07-03 | Mitsui Chemicals, Inc. | Pressure sensitive adhesive film for protection of semiconductor wafer surface and method of protecting semiconductor wafer with the pressure sensitive adhesive film |
US7018268B2 (en) * | 2002-04-09 | 2006-03-28 | Strasbaugh | Protection of work piece during surface processing |
JP2004083633A (ja) * | 2002-08-23 | 2004-03-18 | Nihon Micro Coating Co Ltd | 研磨パッド及び研磨テープ用接着テープ |
JP4107417B2 (ja) | 2002-10-15 | 2008-06-25 | 日東電工株式会社 | チップ状ワークの固定方法 |
DE10256247A1 (de) * | 2002-11-29 | 2004-06-09 | Andreas Jakob | Schichtverbund aus einer Trennschicht und einer Schutzschicht zum Schutze und zum Handling eines Wafers beim Dünnen, bei der Rückseitenbeschichtung und beim Vereinzeln |
JP2004319045A (ja) * | 2003-04-18 | 2004-11-11 | Lintec Corp | 光ディスク製造用シートおよび光ディスク |
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1999
- 1999-04-16 JP JP10980699A patent/JP3784202B2/ja not_active Expired - Lifetime
- 1999-08-25 SG SG9904187A patent/SG82017A1/en unknown
- 1999-08-25 KR KR1019990035415A patent/KR100655036B1/ko not_active IP Right Cessation
- 1999-08-25 US US09/382,965 patent/US6398892B1/en not_active Expired - Lifetime
- 1999-08-25 GB GB9920154A patent/GB2340772B/en not_active Expired - Fee Related
- 1999-08-25 TW TW088114514A patent/TW513480B/zh not_active IP Right Cessation
- 1999-08-25 DE DE19940390A patent/DE19940390A1/de not_active Ceased
- 1999-08-26 CN CNB991183487A patent/CN1147555C/zh not_active Expired - Fee Related
- 1999-08-26 MY MYPI99003686A patent/MY123333A/en unknown
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100814536B1 (ko) * | 2000-04-26 | 2008-03-17 | 린텍 코포레이션 | 실리콘 웨이퍼용의 보강재 및 상기 보강재를 이용한 ic 칩의 제조 방법 |
KR20020041280A (ko) * | 2000-11-27 | 2002-06-01 | 후지야마 겐지 | 반도체 펠릿 처리방법 및 장치 |
KR101527184B1 (ko) * | 2013-10-14 | 2015-06-09 | 도레이첨단소재 주식회사 | 전자 부품 공정용 양면 점착 백 테이프 및 이를 이용한 전자 부품의 분리방법 |
Also Published As
Publication number | Publication date |
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JP3784202B2 (ja) | 2006-06-07 |
KR100655036B1 (ko) | 2006-12-07 |
GB9920154D0 (en) | 1999-10-27 |
DE19940390A1 (de) | 2000-03-16 |
US6398892B1 (en) | 2002-06-04 |
CN1245819A (zh) | 2000-03-01 |
JP2000136362A (ja) | 2000-05-16 |
HK1023786A1 (en) | 2000-09-22 |
CN1147555C (zh) | 2004-04-28 |
GB2340772B (en) | 2002-08-14 |
TW513480B (en) | 2002-12-11 |
GB2340772A (en) | 2000-03-01 |
MY123333A (en) | 2006-05-31 |
SG82017A1 (en) | 2001-07-24 |
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