KR970025846A - 연마용 슬러리 및 그의 제조 방법 - Google Patents

연마용 슬러리 및 그의 제조 방법 Download PDF

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Publication number
KR970025846A
KR970025846A KR1019960053037A KR19960053037A KR970025846A KR 970025846 A KR970025846 A KR 970025846A KR 1019960053037 A KR1019960053037 A KR 1019960053037A KR 19960053037 A KR19960053037 A KR 19960053037A KR 970025846 A KR970025846 A KR 970025846A
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South Korea
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silica
dispersion solution
polishing slurry
silica dispersion
average
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KR1019960053037A
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KR100394049B1 (ko
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히로시 가또
가즈히꼬 하야시
히로유끼 고노
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쯔지 가오루
가부시끼가이샤 토쿠야마
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09G—POLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00—Polishing compositions
    • C09G1/02—Polishing compositions containing abrasives or grinding agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09G—POLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00—Polishing compositions
    • C09G1/04—Aqueous dispersions
    • 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
    • C09K3/1409—Abrasive particles per se
    • 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
    • C09K3/1454—Abrasive powders, suspensions and pastes for polishing
    • C09K3/1463—Aqueous liquid suspensions
    • 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
    • H01L21/02024—Mirror polishing

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

본 발명은 5 내지 30nm의 평균 제1입자 크기를 가지는 훈증 실리카를 수성용매중에서 분산시킴으로서 수득된 실리카 분산 용액을 함유하는 연마용 슬러리에 관한 것으로, 이때 실리카 분산 용액은 실리카 농도 1.5중량%에서 광산란 지수(n)가 3 내지 6이고, 여기에 분산된 훈증 실리카는 중량 기준으로 30 내지 100nm의 평균 제2입자 크기를 가진다. 연마용 슬러리는 훈중 실리카가 중량 기준으로 30 내지 100nm인 평균 제2입자 크기를 함유하도록 수성 용매중에 훈중 실리카를 분산시킴으로써 수득한 실리카 분산 용액을 고압 균질화기를 사용하여 분쇄시킴으로써 제조된다. 연마용 슬러리는 반도체 웨이퍼 및 IC 공정에서 층간 유전체를 연마하기 위해 사용된다.

Description

연마용 슬러리 및 그의 제조 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에서 사용된 정면 충돌 제트 분쇄기의 배열을 도시한 배치도이다.

Claims (12)

  1. 평균 제1입자 크기가 5 내지 30nm인 훈증 실리카를 수성 용매중에서 분산시킴으로써 수득된 실리카 분산용액을 함유하며, 이때 실리카 분산 용액의 광산란 지수(n)은 실리카 농도 1.5중량%에서 3내지 6이고, 여기에 분산된 훈증 실리카는 중량 기준으로 30 내지 100nm의 평균 제2입자 크기를 가지는 것인 연마용 슬러리.
  2. 제1항에 있어서, 실리카 분산 용액중에 칼륨 이외의 금속 원소들이 함량이 10ppm 이하인 연마용 슬러리.
  3. 제1항에 있어서, 실리카 분산 용액중의 훈증 실리카의 농도가 0.1 내지 40중량%인 연마용 슬러리.
  4. 제1항에 있어서, 실리카 분산 용액중의 훈증 실리카의 단일 분산도가 1.2 내지 2인 연마용 슬러리.
  5. 제1항에 있어서, 실리카 분산 용액의 pH가 8 내지 13인 연마용 슬러리.
  6. 훈증 실리카가 중량 기준으로 30 내지 100nm인 평균 제2입자 크기를 함유하도록 수성 용매중에 훈증실리카를 분산시킴으로써 수득된 실리카 분산 용액을 고압 균질화기를 사용하여 분쇄시키는 것으로 이루어지는 연마용 슬러리의 제조 방법.
  7. 제6항에 있어서, 고압 균질화기에 의한 분쇄를 실리카 분산 용액을 정면 충돌시키는 수단에 의존하여 진행시키는 연마용 슬러리의 제조 방법.
  8. 제6항에 있어서, 8 이상의 pH를 가지는 실리카 분산 용액을 분쇄시키는 연마용 슬러리의 제조 방법.
  9. 제6항에 있어서, 500 내지 3500kg/cm2의 처리 압력하에서 고압 균질화기를 사용하여 실리카 분산 용액을 분쇄시키는 연마용 슬러리의 제조 방법.
  10. 연마용 슬러리가 5 내지 30nm의 평균 제1입자 크기를 가지는 훈증 실리카를 수성 용매중에서 분산시킴으로써 수득된, 1.5중량%의 실리카 농도에서 광산란 지수(n)가 3 내지 6인 실리카 분산 용액을 함유하는 것을 특징으로 하는, 실리카의 수성 분산액을 사용하여 연마될 재료를 연마하는 방법.
  11. 제10항에 있어서, 연마될 재료가 반도체 웨이퍼인 방법.
  12. 제10항에 있어서, 연마될 재료가 집적 회로의 제조 방법에서 층간 유전체인 방법.
    ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.
KR1019960053037A 1995-11-10 1996-11-09 연마용슬러리및그의제조방법 KR100394049B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29311495 1995-11-10
JP95-293114 1995-11-10

Publications (2)

Publication Number Publication Date
KR970025846A true KR970025846A (ko) 1997-06-24
KR100394049B1 KR100394049B1 (ko) 2003-12-24

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Country Link
US (1) US5904159A (ko)
EP (1) EP0773270B1 (ko)
KR (1) KR100394049B1 (ko)
DE (1) DE69611653T2 (ko)
TW (1) TW422873B (ko)

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EP0773270A3 (en) 1997-12-03
TW422873B (en) 2001-02-21
US5904159A (en) 1999-05-18
DE69611653D1 (de) 2001-03-01
EP0773270A2 (en) 1997-05-14
DE69611653T2 (de) 2001-05-03
KR100394049B1 (ko) 2003-12-24
EP0773270B1 (en) 2001-01-24

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