KR100398141B1 - 화학적 기계적 연마 슬러리 조성물 및 이를 이용한반도체소자의 제조방법 - Google Patents
화학적 기계적 연마 슬러리 조성물 및 이를 이용한반도체소자의 제조방법 Download PDFInfo
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- KR100398141B1 KR100398141B1 KR10-2000-0059955A KR20000059955A KR100398141B1 KR 100398141 B1 KR100398141 B1 KR 100398141B1 KR 20000059955 A KR20000059955 A KR 20000059955A KR 100398141 B1 KR100398141 B1 KR 100398141B1
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- cmp
- slurry composition
- chemical mechanical
- mechanical polishing
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- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
- H01L21/76229—Concurrent filling of a plurality of trenches having a different trench shape or dimension, e.g. rectangular and V-shaped trenches, wide and narrow trenches, shallow and deep trenches
-
- 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
-
- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
실리카 | TMAH | 포스페이트 계열의 음이온계 첨가제(NH3)2HPO4 | 불소화합물(TMAF) | 초순수 | 기타 | 실리카의 금속불순물함량 | |
실시예 1 | 12% | 1% | 0.1% | 0.1% | 나머지 잔량 100 중량%까지 | 50ppm | |
실시예 2 | 3% | 1% | 0.1% | 0.1% | 60ppm | ||
실시예 3 | 30% | 1% | 0.1% | 0.1% | 70ppm | ||
실시예 4 | 12% | 0.01% | 0.1% | 0.1% | 50ppm | ||
실시예 5 | 20% | 5% | 0.1% | 0.1% | 50ppm | ||
실시예 6 | 12% | 1% | 0.01% | 0.1% | 50ppm | ||
실시예 7 | 12% | 1% | 3% | 0.1% | 50ppm | ||
실시예 8 | 12% | 1% | 0.1% | 1% | 50ppm | ||
실시예 9 | 15% | 1% | 0.1% | 1% | 50ppm | ||
실시예 10 | 12% | TEAH3% | 0.1% | 0.1% | 분산제0.1% | 50ppm | |
실시예 11 | 12% | IPA1% | 1.5% | 0.1% | 완충용액0.1% | 50ppm | |
실시예 12 | 12% | TMA-Cl1% | 0.1% | 0.5% | 염류0.1% | 50ppm | |
비교예 1 | 35% | 1% | 0.1% | 0.1% | 50ppm | ||
비교예 2 | 12% | 10% | 0.1% | 0.1% | 50ppm | ||
비교예 3 | 12% | 1% | 5% | 0.1% | 50ppm | ||
비교예 4 | 12% | 1% | 0.1% | 3% | 50ppm | ||
비교예 5 | 10% | 1% | 0.1% | 0.1% | 100ppm | ||
비교예 6 | 12% | 1% | 0.1% | 0.1% | 50ppm |
점도(cPs) | 보관안정성(개월) | 제조 공정의 용이성(시간) | 표면Roughness | ||
초기분산액 | 최종제품 | ||||
Silica A | 3.0 | 0.25 | 6 | 8 | 0.370nm |
Silica B | 2.5 | 0.35 | 12 | 5 | 0.328nm |
Primary Platen RPM | Carrier Head RPM | Down Force | Back Pressure |
46 RPM | 28 RPM | 7 PSI | 2 PSI |
제조 공정의 용이성(시간) | 보관안정성(개월) | 다분산도 | 표면 Roughness(nm) | Large particles개수 | Scratch개수 | |
Method A | 6 | 12 | 0.15 | 0.328 | 10000 | 15개 이하 |
Method B | 7 | 10 | 0.17 | 0.343 | 13000 | 30개 이하 |
Method C | 13 | 6 | 2.50 | 0.414 | 35000 | 100개 이하 |
Method D | 9 | 0.25 | 2.50 | 0.389 | 20000 | 80개 이하 |
Total Metal Impurities (ppm) | Metal Impurity on Wafer(Conc.*E10atom/cm2) | ||||||
K | Ca | Fe | Mn | Cu | Zn | ||
Slurry A | 100 | 0 | 0 | 0.22 | 0 | 0 | 0 |
Slurry B | 10000 | 0 | 0 | 0.322 | 0.048 | 0.002 | 0 |
Slurry C | 1000 | 0.13 | 0.202 | 0.464 | 0.02 | 0 | 0 |
Slurry D | 300 | 0 | 0 | 0.386 | 0.002 | 0 | 0 |
SiO2R/R | SiO2R/R NU | Si3N4R/R | Si3N4R/R NU | R/R Selectivity | |
Slurry A | 2230Å/min | 6.87% | 745Å/min | 5.38% | 2.99:1 |
Slurry B | 2197Å/min | 10.56% | 435Å/min | 7.35% | 5.05:1 |
Slurry C | 2453Å/min | 7.06% | 576Å/min | 13.24% | 4.25:1 |
Slurry D | 2347Å/min | 4.09% | 235Å/min | 6.25% | 9.98:1 |
Moat process 가능 여부 | 공정 단순화 효과 | Nitride Residue정도 | |
Slurry A | X | Reverse Moat Etch공정을 반드시 필요로 함 | 50~80 Die |
Slurry B | △ | Reverse Moat Etch 공정을 진행할 필요가 있음 | 20~35 Die |
Slurry C | △ | Reverse Moat Etch 공정을 진행할 필요가 있음 | 20~50 Die |
Slurry D | O | Reverse Moat Etch 공정을 생략 가능 | 0~5 Die |
Claims (20)
- (정정)(a) 일차입자경이 10 내지 50 nm인 흄드실리카;(b) TMAH(tetramethyl ammonium hydroxide);(c) 포스페이트(phosphate) 계열의 음이온계 첨가제;(d) 불소화합물; 및(d) 초순수를 포함하는 것을 특징으로 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- (삭제)
- 제 1항에 있어서,상기 흄드실리카의 함량이 3 내지 30 중량%인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,상기 흄드실리카의 수계 4% 초기분산액의 점도가 4cPs미만인 것을 특징으로하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서, 상기 흄드실리카의 금속불순물의 함량이 70 ppm 미만인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,상기 TMAH(tetramethyl ammonium hydroxide)의 함량이 0.01 내지 5 중량%인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,Ethanol Amine, Isopropyl Amine, Dipropyl Amine, Ethylene Diamine(EDA), Propane Diamine, Hexamethylenediamine, Hydrazine compound, TetraMethyl Ammonium Fluoride(TMAF), TMAH, TetraMethyl Ammonium Chloride(TMA-Cl), TetraEthyl Ammonium Hydroxide(TEAH), TetraEthyl Ammonium Fluoride(TEAF), TetraEthyl Ammonium Chloride(TEA-Cl), Dimethyl Diethyl Ammonium Hydroxide, Dimethyl Diethyl Ammonium Fluoride, Dimethyl Diethyl Ammonium Chloride, Alkylbenzyldimethylammonium Hydroxide, Diethylenetriamine, Triethylenetetr amine(TETA), Tetraethylenepentamine, Aminoethylethanolamine (AEEA), 및 Piperazine으로 이루어지는 군으로부터 선택되는 물질의 primary amines, secondary amines, tertiary amines, quaternary amines, quaternary ammoniumsalts, 또는 heterocyclic amines을 더욱 포함하는 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,상기 포스페이트(phosphate) 계열의 음이온계 첨가제의 함량이 0.01 내지 3중량%인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,상기 포스페이트(phosphate) 계열의 음이온계 첨가제의 polar group이 모노(mono) 또는 다이(di) 포스페이트인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,상기 포스페이트(phosphate) 계열의 음이온계 첨가제의 apolar group이 hydrocarbon 또는 fluorocarbon인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,상기 불소화합물의 함량이 0.01 내지 1 중량%인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,상기 불소화합물은 TMAF 또는 TMAF 염인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,분산제, buffer solution, 및 염류로 이루어지는 군으로부터 선택되는 하나 이상의 물질을 더욱 포함하는 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 1항에 있어서,초순수에 TMAH를 가하고, 흄드실리카를 점차적으로 투입하여 분산시키고, 포스페이트 계열의 음이온계 첨가제와 불소화합물을 첨가하여 분산액을 제조한 후, 상기 분산액을 대향 충돌 방식으로 밀링하여 제조한 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 14항에 있어서,상기 CMP 슬러리 조성물의 초기 분산액에서 흄드 실리카의 평균 이차 입경이 220 내지 290 nm인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 14항에 있어서,상기 분산액의 다분산도가 0.25 이하인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 14항에 있어서,상기 밀링방법은 제트 밀링(jet milling)인 것을 특징으로 하는 CMP (Chemical Mechanical Polishing) 슬러리 조성물.
- 제 14항에 있어서,대향 충돌시 처리 압력이 500 내지 3000 kgf/cm2인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- 제 14항에 있어서,상기 밀링 후의 흄드실리카의 평균 이차 입경이 150 내지 220 nm이고, 다분산도가 0.20 이하인 것을 특징으로 하는 CMP(Chemical Mechanical Polishing) 슬러리 조성물.
- (정정)질화막 및 산화막이 연이어 적층되는 구조를 갖는 반도체 소자의 산화막과 질화막을 에칭하여 화학적 기계적 연마를 수행하는데 있어서,상기 제 1항 내지 제 19항 중 어느 한 항의 CMP 슬러리 조성물을 사용하여 화학적 기계적 연마를 하는 것을 특징으로 하는 반도체 소자의 평탄화방법.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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KR10-2000-0059955A KR100398141B1 (ko) | 2000-10-12 | 2000-10-12 | 화학적 기계적 연마 슬러리 조성물 및 이를 이용한반도체소자의 제조방법 |
AU2001232401A AU2001232401A1 (en) | 2000-10-12 | 2001-02-05 | Cmp slurry composition and a method for planarizing semiconductor device using the same |
JP2002534444A JP3970763B2 (ja) | 2000-10-12 | 2001-02-05 | Cmpスラリー組成物及びこれを利用した半導体素子の平坦化方法 |
PCT/KR2001/000163 WO2002031072A1 (en) | 2000-10-12 | 2001-02-05 | Cmp slurry composition and a method for planarizing semiconductor device using the same |
TW90102415A TW574334B (en) | 2000-10-12 | 2001-02-05 | CMP slurry composition and a method for planarizing semiconductor device using the same |
US10/399,062 US7029509B2 (en) | 2000-10-12 | 2001-02-05 | CMP slurry composition and a method for planarizing semiconductor device using the same |
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KR10-2000-0059955A KR100398141B1 (ko) | 2000-10-12 | 2000-10-12 | 화학적 기계적 연마 슬러리 조성물 및 이를 이용한반도체소자의 제조방법 |
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KR20020029158A KR20020029158A (ko) | 2002-04-18 |
KR100398141B1 true KR100398141B1 (ko) | 2003-09-13 |
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KR10-2000-0059955A Expired - Fee Related KR100398141B1 (ko) | 2000-10-12 | 2000-10-12 | 화학적 기계적 연마 슬러리 조성물 및 이를 이용한반도체소자의 제조방법 |
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US (1) | US7029509B2 (ko) |
JP (1) | JP3970763B2 (ko) |
KR (1) | KR100398141B1 (ko) |
AU (1) | AU2001232401A1 (ko) |
TW (1) | TW574334B (ko) |
WO (1) | WO2002031072A1 (ko) |
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KR100447254B1 (ko) * | 2001-12-31 | 2004-09-07 | 주식회사 하이닉스반도체 | 반도체소자의 금속배선 콘택 플러그 형성방법 |
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2000
- 2000-10-12 KR KR10-2000-0059955A patent/KR100398141B1/ko not_active Expired - Fee Related
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2001
- 2001-02-05 TW TW90102415A patent/TW574334B/zh not_active IP Right Cessation
- 2001-02-05 JP JP2002534444A patent/JP3970763B2/ja not_active Expired - Fee Related
- 2001-02-05 US US10/399,062 patent/US7029509B2/en not_active Expired - Lifetime
- 2001-02-05 AU AU2001232401A patent/AU2001232401A1/en not_active Abandoned
- 2001-02-05 WO PCT/KR2001/000163 patent/WO2002031072A1/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100447254B1 (ko) * | 2001-12-31 | 2004-09-07 | 주식회사 하이닉스반도체 | 반도체소자의 금속배선 콘택 플러그 형성방법 |
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KR20020029158A (ko) | 2002-04-18 |
AU2001232401A1 (en) | 2002-04-22 |
US7029509B2 (en) | 2006-04-18 |
US20040020134A1 (en) | 2004-02-05 |
WO2002031072A1 (en) | 2002-04-18 |
JP2004511900A (ja) | 2004-04-15 |
TW574334B (en) | 2004-02-01 |
JP3970763B2 (ja) | 2007-09-05 |
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