KR100613142B1 - 화학 기계적 연마용 콜로이달 실리카의 제조방법 - Google Patents
화학 기계적 연마용 콜로이달 실리카의 제조방법 Download PDFInfo
- Publication number
- KR100613142B1 KR100613142B1 KR1020040041498A KR20040041498A KR100613142B1 KR 100613142 B1 KR100613142 B1 KR 100613142B1 KR 1020040041498 A KR1020040041498 A KR 1020040041498A KR 20040041498 A KR20040041498 A KR 20040041498A KR 100613142 B1 KR100613142 B1 KR 100613142B1
- Authority
- KR
- South Korea
- Prior art keywords
- silica sol
- colloidal silica
- silica
- chemical mechanical
- mechanical polishing
- 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.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/146—After-treatment of sols
- C01B33/148—Concentration; Drying; Dehydration; Stabilisation; Purification
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
| 실리카 종류 | 연마 속도 (Å/min) | 선택비(Selectivity) | ||
| Cu | Ta | SiO2 | ||
| 실시예 1 | 11701 | 48 | 47 | 249/1/1 |
| 실시예 2 | 15749 | 58 | 33 | 477/2/1 |
| 실시예 3 | 15758 | 50 | 63 | 250/1/1 |
| 비교예 1(SS-SOL30H) | 12554 | 213 | 200 | 63/1/1 |
| 비교예 2(TS80) | 7002 | 295 | 661 | 11/0.4/1 |
Claims (6)
- 양이온 교환체에 염기성 실리카 졸을 통과시켜, 염기성 실리카 졸을 수소이온농도(pH) 2 내지 3의 산성 실리카졸로 만드는 단계;상기 산성 실리카 졸을 10 내지 30 중량%의 농도로 희석하는 단계;생성된 산성 실리카 졸을 수열 처리(hydrothermal treatment)하는 단계;상기 수열 처리된 실리카 졸을 20 내지 40 중량%의 농도로 농축하는 단계; 및수열 처리된 실리카 졸을 여과 및 정제하는 단계를 포함하는 구리막의 화학 기계적 연마용 콜로이달 실리카의 제조 방법.
- 삭제
- 삭제
- 제1항에 있어서, 상기 염기성 실리카 졸의 실리카 평균 입자 크기는 15 내지 150nm 인 것인 화학 기계적 연마용 콜로이달 실리카의 제조 방법.
- 제1항에 있어서, 상기 수열 처리 단계는 120 내지 300℃에서 수행되는 것인 화학 기계적 연마용 콜로이달 실리카의 제조 방법.
- 삭제
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040041498A KR100613142B1 (ko) | 2004-06-07 | 2004-06-07 | 화학 기계적 연마용 콜로이달 실리카의 제조방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040041498A KR100613142B1 (ko) | 2004-06-07 | 2004-06-07 | 화학 기계적 연마용 콜로이달 실리카의 제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20050116472A KR20050116472A (ko) | 2005-12-13 |
| KR100613142B1 true KR100613142B1 (ko) | 2006-08-17 |
Family
ID=37290077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020040041498A Expired - Lifetime KR100613142B1 (ko) | 2004-06-07 | 2004-06-07 | 화학 기계적 연마용 콜로이달 실리카의 제조방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100613142B1 (ko) |
-
2004
- 2004-06-07 KR KR1020040041498A patent/KR100613142B1/ko not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050116472A (ko) | 2005-12-13 |
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