KR20010101623A - 개선된 연마 패드 및 이에 관련된 방법 - Google Patents
개선된 연마 패드 및 이에 관련된 방법 Download PDFInfo
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- KR20010101623A KR20010101623A KR1020017009180A KR20017009180A KR20010101623A KR 20010101623 A KR20010101623 A KR 20010101623A KR 1020017009180 A KR1020017009180 A KR 1020017009180A KR 20017009180 A KR20017009180 A KR 20017009180A KR 20010101623 A KR20010101623 A KR 20010101623A
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- polishing
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- layer
- polishing surface
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Classifications
-
- 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
- B24B37/11—Lapping tools
- B24B37/20—Lapping pads for working plane surfaces
- B24B37/24—Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
-
- 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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
-
- 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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
-
- 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
- B24B37/11—Lapping tools
- B24B37/20—Lapping pads for working plane surfaces
- B24B37/26—Lapping pads for working plane surfaces characterised by the shape of the lapping pad surface, e.g. grooved
-
- 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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/017—Devices or means for dressing, cleaning or otherwise conditioning lapping tools
-
- 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
-
- 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
- B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
- B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
Abstract
Description
Claims (21)
- 연마 표면을 추가로 포함하는 연마 층을 갖는 얇은 패드와 기판 사이에 연마액을 위치시키는 단계,표면이 서로 평균 50% 이상 접촉하지 않도록 방지하는 연마액 또는 추가의 연마액을 표면 사이에 유지시키면서, 연마 표면과 기판 표면을 서로 평행 및 바이어스(bias) 이동시키는 단계 및제곱 인치당 25파운드 미만의 균일한 힘을 적용시켜 표면을 서로 바이어싱시키고, 다수의 나노요철을 포함하는 연마 표면을 5㎛ 미만으로 압축시켜, 연마 표면이 기판 표면의 주요 부분에 평행인 평면 배치를 나타내도록 하는 단계를 포함하여, 반도체 장치 또는 이의 전구체의 제조에 유용한 기판을 연마하는 방법에 있어서,두께가 1mm 이상인 연마 층이, 두께가 1mm 이하인 지지 필름에 접합되어 있고,(i) 밀도가 0.5g/㎤보다 크고,(ii) 임계 표면 장력이 34mN/m 이상이고,(iii) 인장 탄성율이 0.02 내지 5GPa이고,(iv) 30℃에서의 인장 탄성율 대 60℃에서의 인장 탄성율의 비가 1.0 내지 2.5이고,(v) 경도가 15 내지 80Shore D이고,(vi) 강복 응력이 300 내지 6000psi이고,(vii) 인장 강도가 1000 내지 15,000psi이고,(viii) 파단 신도가 500% 이하이고,1. 우레탄, 2. 카보네이트, 3. 아미드, 4, 에스테르, 5. 에테르, 6. 아크릴레이트, 7. 메타크릴레이트, 8. 아크릴산, 9. 메타크릴산, 10. 설폰, 11. 아크릴아미드, 12. 할라이드, 13. 이미드, 14. 카복실, 15. 카보닐, 16. 아미노, 17. 알데하이드릭 및 18. 하이드록실로 이루어진 그룹으로부터의 하나 이상의 성분을 포함하는 연마 재료로 본질적으로 이루어진 연마 표면을 가지고,연마 패드의 평균 총 두께가 3mm 이하인 방법.
- 제1항에 있어서, 매크로-토포그래피(macro-topography)가, (i) 엠보싱, (ii) 성형, (iii) 프린팅, (iv) 캐스팅, (v) 소결, (vi) 광-화상형성, (vii) 화학적 에칭 또는 (viii) 잉크-젯 프린팅에 의해 연마 표면에 도입되는 연마 패드.
- 제2항에 있어서, 연마 표면이 잉크-젯 프린팅에 의해 형성되는 연마 패드.
- 제1항에 있어서, 연마 표면이 1000배율로 관찰할 경우에 연마 표면 ㎟당 평균 2개 미만의 관찰가능한 매크로-결함을 갖는 패드.
- 제1항에 있어서, 연마 재료가, 평균 크기가 100㎛ 미만인 다수의 연질 영역과 다수의 경질 영역을 추가로 포함하는 패드.
- 제5항에 있어서, 경질 영역과 연질 영역이, 다수의 경질 단편과 다수의 연질 단편을 갖는 중합체를 포함하는 연마 층이 형성될 때 상 분리에 의해 제조되는 패드.
- 제3항에 있어서, 연마 층이 본질적으로 2상 폴리우레탄으로 이루어지는 패드.
- 제1항에 있어서, 연마 층이 압출성형법에 의해 시트로서 성형되는 패드.
- 제8항에 있어서, 시트가, 서로 접합되어 연속식 벨트를 형성하는 개시 엣지(beginning edge)와 종결 엣지(ending edge)를 갖는 패드.
- 제8항에 있어서, 시트가 절단되어, 임의의 크기 또는 형태로 형성되는 패드.
- 제1항에 있어서, 유동성 재료가 주변에 응고되어 있는 삽입물을 추가로 포함하는 패드.
- 제1항에 있어서, 평균 종횡비가 400 이상인 패드.
- 제1항에 있어서, 연마 층이 연마 입자를 추가로 포함하는 패드.
- (a) 두께가 1mm 이하이고,(i) 밀도가 0.5g/㎤보다 크고,(ii) 임계 표면 장력이 34mN/m 이상이고,(iii) 인장 탄성율이 0.02 내지 5GPa이고,(iv) 30℃에서의 인장 탄성율 대 60℃에서의 인장 탄성율의 비가 1.0 내지 2.5이고,(v) 경도가 15 내지 80Shore D이고,(vi) 강복 응력이 300 내지 6000psi이고,(vii) 인장 강도가 1000 내지 15,000psi이고,(viii) 파단 신도가 500% 이하이며,이소시아네이트 반응을 촉진시키는, 구리, 텅스텐, 철 또는 크롬을 함유하지 않는 촉매에 의해 제조된 우레탄, 카보네이트, 아미드, 에스테르, 에테르, 아크릴레이트, 메타크릴레이트, 아크릴산, 메타크릴산, 설폰, 아크릴아미드, 할라이드 및 하이드록사이드로 이루어진 그룹으로부터의 하나 이상의 성분을 포함하는 연마 재료로 본질적으로 이루어지고, 유동성 재료를 응고시킴으로써 생성된 매크로-토포그래피를 갖는 연마 표면을 갖는 친수성 연마 층으로 본질적으로 이루어진 연마 층을 갖는 연마 패드를 제공하는 단계 및(b) 금속, 규소 또는 이산화규소 기판을 단계(a)의 패드로 화학 기계적 연마하는 단계를 포함하는, 규소, 이산화규소 또는 금속 기판의 평탄화 방법.
- 제14항에 있어서, 매크로-토포그래피가 (i) 엠보싱, (ii) 성형, (iii) 프린팅, (iv) 캐스팅, (v) 소결, (vi) 광-화상형성, (vii) 화학적 에칭 또는 (viii) 잉크-젯 프린팅에 의해 연마 표면에 도입되는 방법.
- 제14항에 있어서, 연마 표면이 컨디셔닝되어, 다수의 경질 입자를 보유하는 연마 매질의 연마 표면에 대한 상하 이동에 의해 다수의 마이크로-요철을 생성시키는 방법.
- 제1항에 있어서, 연마 층이 폴리메틸 메타크릴레이트, 폴리비닐 클로라이드, 폴리설폰, 나일론, 폴리카보네이트, 폴리우레탄, 에틸렌 공중합체, 폴리에테르 설폰 폴리에테르 이미드, 폴리에틸렌 이민, 폴리케톤 및 이들의 배합물로 이루어진 그룹으로부터 선택된 재료로 본질적으로 이루어지는 패드.
- 연마 매질을 연마 표면에 대해 상하 및 평행 이동시킴으로써 생성된 다수의 마이크로-요철을, 랜덤 표면 텍스쳐(random surface texture)를 가지며 다수의 슬러리 입자를 흡수하거나 이송시키는 고유 능력을 가지지 않는 친수성 연마 표면 위에 생성시키는 단계 및규소, 이산화규소, 유리 또는 금속 기판을, 기판과 연마 층 사이의 압력을 0.1kg/㎡로 하여 마이크로-결함을 갖는 연마 층으로 연마하는 단계를 포함하여, 반도체 장치의 기판을 연마하는 방법.
- 제18항에 있어서, 연마 매질을 연마 표면에 대해 다시 상하 및 평행 이동시킴으로써 마이크로-요철을 기판의 연마 동안에 주기적으로 재생시키는 단계를 추가로 포함하는 방법.
- 제19항에 있어서, 연마 매질이, 이후에 마이크로-돌출부를 재생시킨 경우보다, 초기에 패드를 더 엄격하게 계합시켜 마이크로-돌출부를 생성시키는 방법.
- 다수의 슬러리 입자를 흡수하는 고유 능력을 가지지 않는 친수성 연마 층으로 본질적으로 이루어진 연마 층을 포함하는, 화학 기계적 연마에서 사용하기 위한 연마 패드에 있어서,연마 층은 (i) 밀도가 0.5g/㎤보다 크고,(ii) 임계 표면 장력이 34mN/m 이상이고,(iii) 인장 탄성율이 0.02 내지 5GPa이고,(iv) 30℃에서의 인장 탄성율 대 60℃에서의 인장 탄성율의 비가 1.0 내지 2.5이고,(v) 경도가 15 내지 80Shore D이고,(vi) 강복 응력이 300 내지 6000psi이고,(vii) 인장 강도가 1000 내지 15,000psi이고,(viii) 파단 신도가 500% 이하인 연마 재료로 본질적으로 이루어진 연속 또는 비연속의 연마 표면을 가지며, 이러한 연마 표면에 근접하여 폭이 0.01mm 이상이고, 깊이가 0.01mm 이상이고, 길이가 0.1mm 이상인 하나 이상의 홈을 갖는 표면 토포그래피를 포함하고,당해 표면 토포그래피는 전이 영역을 가지며, 당해 전이 영역은 연마 표면으로부터 홈의 경계면으로 전이되는 표면 토포그래피의 일부이고, 당해 홈의 경계면은 연마 표면이 존재하는 제2의 평면과는 상이한 제1 평면 위에 존재하고, 당해 전이 영역은 제1 평면과 제2 평면 사이를 가교하는 연마 표면의 일부에 의해 한정되고, 전체 연마 표면 중의 전이 영역은 홈 길이 mm당 25㎛ 이상인 매크로-결함을 10개 미만으로 갖는 연마 패드.
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2000
- 2000-01-21 WO PCT/US2000/001495 patent/WO2000043159A1/en active IP Right Grant
- 2000-01-21 US US09/488,414 patent/US6354915B1/en not_active Expired - Lifetime
- 2000-01-21 JP JP2000594606A patent/JP2002535843A/ja active Pending
- 2000-01-21 CN CNB008029342A patent/CN1137013C/zh not_active Expired - Lifetime
- 2000-01-21 KR KR1020017009180A patent/KR100585480B1/ko active IP Right Grant
- 2000-01-21 EP EP00906976A patent/EP1161322A4/en not_active Withdrawn
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KR100771892B1 (ko) * | 2007-02-06 | 2007-11-01 | 삼성전자주식회사 | 디싱 현상 없이 평탄화된 막을 구비하는 반도체 소자의제조방법 |
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CN1336861A (zh) | 2002-02-20 |
US20020098782A1 (en) | 2002-07-25 |
US6354915B1 (en) | 2002-03-12 |
CN1137013C (zh) | 2004-02-04 |
WO2000043159A1 (en) | 2000-07-27 |
EP1161322A1 (en) | 2001-12-12 |
US6500053B2 (en) | 2002-12-31 |
KR100585480B1 (ko) | 2006-06-02 |
JP2002535843A (ja) | 2002-10-22 |
EP1161322A4 (en) | 2003-09-24 |
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