KR101152462B1 - 반도체 웨이퍼 에지의 폴리싱 방법 - Google Patents
반도체 웨이퍼 에지의 폴리싱 방법 Download PDFInfo
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- KR101152462B1 KR101152462B1 KR1020100033911A KR20100033911A KR101152462B1 KR 101152462 B1 KR101152462 B1 KR 101152462B1 KR 1020100033911 A KR1020100033911 A KR 1020100033911A KR 20100033911 A KR20100033911 A KR 20100033911A KR 101152462 B1 KR101152462 B1 KR 101152462B1
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- 238000005498 polishing Methods 0.000 title claims abstract description 119
- 239000004065 semiconductor Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims description 27
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000007517 polishing process Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 42
- 239000002245 particle Substances 0.000 claims description 27
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 11
- 239000003082 abrasive agent Substances 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 5
- 239000004417 polycarbonate Substances 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 4
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 2
- BAVYZALUXZFZLV-UHFFFAOYSA-O Methylammonium ion Chemical compound [NH3+]C BAVYZALUXZFZLV-UHFFFAOYSA-O 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 59
- 238000003754 machining Methods 0.000 description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000417 fungicide Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004901 spalling Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001050985 Disco Species 0.000 description 1
- -1 Glanzox 3900 having Chemical compound 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- 101100107923 Vitis labrusca AMAT gene Proteins 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
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- 238000009499 grossing Methods 0.000 description 1
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- 239000012528 membrane Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007494 plate polishing Methods 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
- H01L21/02005—Preparing bulk and homogeneous wafers
- H01L21/02008—Multistep processes
- H01L21/0201—Specific process step
- H01L21/02021—Edge treatment, chamfering
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/02—Lapping machines or devices; Accessories designed for working surfaces of revolution
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/065—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of thin, brittle parts, e.g. semiconductors, wafers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/12—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
Claims (18)
- 반도체 웨이퍼 에지의 폴리싱 방법으로서,
(a) 양쪽면을 폴리싱하고 라운드 처리한 에지를 갖는 반도체 웨이퍼를 마련하는 단계; 및
(b) 반도체 웨이퍼를 중심 회전 척(centrally rotating chuck)에 고정하고, 이 척에 대하여 경사지고 고정 결합된 연삭재를 함유한 폴리싱 패드가 부착되어 있는 중심 회전 폴리싱 드럼과 반도체 웨이퍼를 서로를 향해 이송하고, 이어서, 고상 성분을 함유하지 않는 폴리싱제 용액을 계속해서 공급하면서 반도체 웨이퍼와 폴리싱 드럼을 서로에 대하여 가압함으로써 반도체 웨이퍼의 에지를 폴리싱하는 단계
를 포함하는 것인 반도체 웨이퍼 에지의 폴리싱 방법. - 제1항에 있어서, 상기 폴리싱제 용액은 탄산나트륨(Na2CO3), 탄산칼륨(K2CO3), 수산화나트륨(NaOH), 수산화칼륨(KOH), 수산화암모늄(NH4OH), 수산화테트라메틸암모늄(TMAH) 화합물 또는 이들의 임의의 원하는 혼합물의 수성 용액 또는 물인 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제2항에 있어서, 상기 폴리싱제 용액의 pH 값은 10 내지 12이고, 상기 폴리싱제 용액이 상기 화합물의 수성 용액인 경우에 폴리싱제 용액 내의 상기 화합물의 비율은 0.01 내지 10 wt%인 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 제1 에지 폴리싱 후에, 연삭재를 함유하는 폴리싱제 슬러리를 공급하면서 제2 에지 폴리싱이 이루어지는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제4항에 있어서, 상기 제2 에지 폴리싱에 따른 폴리싱제 슬러리 내의 연삭재의 비율은 0.25 내지 20 wt%인 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제4항에 있어서, 상기 폴리싱제 슬러리 내의 연삭재는 알루미늄, 세륨 또는 실리콘 원소의 하나 또는 그 이상의 산화물을 포함하는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제6항에 있어서, 상기 폴리싱제 슬러리는 콜로이달성 분산 실리카를 함유하는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제7항에 있어서, 상기 폴리싱제 슬러리의 pH 값은 9 내지 11.5의 범위에 놓이는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제8항에 있어서, 상기 폴리싱제 슬러리의 pH 값은, 탄산나트륨(Na2CO3), 탄산칼륨(K2CO3), 수산화나트륨(NaOH), 수산화칼륨(KOH), 수산화암모늄(NH4OH), 수산화테트라메틸암모늄(TMAH) 또는 이들 화합물의 임의의 원하는 혼합물로부터 선택된 첨가제에 의해서 설정되는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 사용되는 폴리싱 패드는 세륨, 알루미늄, 실리콘 또는 지르코늄의 산화물의 입자로부터 선택되거나, 실리콘 탄화물, 붕소 질화물 또는 다이아몬드와 같은 경질 재료의 입자로부터 선택된 연삭재를 함유하는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제10항에 있어서, 상기 폴리싱 패드는 세륨 산화물 입자를 함유하는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제10항에 있어서, 상기 연삭재의 평균 입자 크기는 0.1 내지 1 ㎛인 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제12항에 있어서,상기 연삭재의 평균 입자 크기는 0.1 내지 0.25 ㎛인 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제10항에 있어서, 상기 폴리싱 패드는 연삭재를 함유하는 층, 강성 플라스틱으로 이루어진 층 및 또한 유연한 부직포 층(compliant, non-woven layer)을 함께 포함하고, 상기 층들이 감압 접착제 층에 의해서 서로 결합되는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제14항에 있어서, 상기 강성 플라스틱으로 이루어진 층은 폴리카보네이트를 포함하는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제14항에 있어서, 상기 폴리싱 패드는 폴리우레탄 폼(foam)으로 이루어진 추가의 층을 포함하는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제14항에 있어서, 상기 유연 층은 폴리에스테르 섬유를 포함하는 것인 반도체 웨이퍼 에지의 폴리싱 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 반도체 웨이퍼는 300 mm 또는 그 이상의 직경을 갖는 단결정 실리콘으로 이루어진 웨이퍼인 것인 반도체 웨이퍼 에지의 폴리싱 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009030294A DE102009030294B4 (de) | 2009-06-24 | 2009-06-24 | Verfahren zur Politur der Kante einer Halbleiterscheibe |
DE102009030294.8 | 2009-06-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100138737A KR20100138737A (ko) | 2010-12-31 |
KR101152462B1 true KR101152462B1 (ko) | 2012-06-01 |
Family
ID=43298896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020100033911A Expired - Fee Related KR101152462B1 (ko) | 2009-06-24 | 2010-04-13 | 반도체 웨이퍼 에지의 폴리싱 방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8388411B2 (ko) |
JP (1) | JP5839783B2 (ko) |
KR (1) | KR101152462B1 (ko) |
CN (1) | CN101930908B (ko) |
DE (1) | DE102009030294B4 (ko) |
TW (1) | TWI431678B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20220092011A (ko) | 2020-12-24 | 2022-07-01 | 에스케이실트론 주식회사 | 척 클리닝 유닛, 세척 수단 및 세척부 |
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KR101091030B1 (ko) | 2010-04-08 | 2011-12-09 | 이화다이아몬드공업 주식회사 | 감소된 마찰력을 갖는 패드 컨디셔너 제조방법 |
JP2011224680A (ja) * | 2010-04-16 | 2011-11-10 | Ebara Corp | 研磨方法及び研磨装置 |
US9064836B1 (en) * | 2010-08-09 | 2015-06-23 | Sandisk Semiconductor (Shanghai) Co., Ltd. | Extrinsic gettering on semiconductor devices |
CN102335855A (zh) * | 2011-06-02 | 2012-02-01 | 湖北东光电子股份有限公司 | 一种49u/s石英晶片倒边工艺 |
DE102013204839A1 (de) | 2013-03-19 | 2014-09-25 | Siltronic Ag | Verfahren zum Polieren einer Scheibe aus Halbleitermaterial |
DE102013210057A1 (de) | 2013-05-29 | 2014-12-04 | Siltronic Ag | Verfahren zur Politur der Kante einer Halbleiterscheibe |
DE102013212850A1 (de) | 2013-07-02 | 2013-09-12 | Siltronic Ag | Verfahren zur Politur der Kante einer Halbleiterscheibe |
CN103560105A (zh) * | 2013-11-22 | 2014-02-05 | 上海新傲科技股份有限公司 | 边缘光滑的半导体衬底的制备方法 |
CN104526493A (zh) * | 2014-11-18 | 2015-04-22 | 天津中环领先材料技术有限公司 | 一种单晶硅晶圆片边缘抛光工艺 |
JP6917233B2 (ja) * | 2017-07-25 | 2021-08-11 | 株式会社ディスコ | ウエーハの加工方法 |
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2009
- 2009-06-24 DE DE102009030294A patent/DE102009030294B4/de not_active Expired - Fee Related
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2010
- 2010-04-08 CN CN201010161897.8A patent/CN101930908B/zh not_active Expired - Fee Related
- 2010-04-13 KR KR1020100033911A patent/KR101152462B1/ko not_active Expired - Fee Related
- 2010-05-05 US US12/774,025 patent/US8388411B2/en not_active Expired - Fee Related
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Publication number | Priority date | Publication date | Assignee | Title |
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KR20220092011A (ko) | 2020-12-24 | 2022-07-01 | 에스케이실트론 주식회사 | 척 클리닝 유닛, 세척 수단 및 세척부 |
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DE102009030294B4 (de) | 2013-04-25 |
KR20100138737A (ko) | 2010-12-31 |
US20100330885A1 (en) | 2010-12-30 |
CN101930908A (zh) | 2010-12-29 |
DE102009030294A1 (de) | 2011-01-05 |
CN101930908B (zh) | 2014-01-29 |
JP5839783B2 (ja) | 2016-01-06 |
TWI431678B (zh) | 2014-03-21 |
JP2011009736A (ja) | 2011-01-13 |
US8388411B2 (en) | 2013-03-05 |
TW201101378A (en) | 2011-01-01 |
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