KR20050101128A - 반도체장치의 제조방법 - Google Patents
반도체장치의 제조방법 Download PDFInfo
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- KR20050101128A KR20050101128A KR1020050084557A KR20050084557A KR20050101128A KR 20050101128 A KR20050101128 A KR 20050101128A KR 1020050084557 A KR1020050084557 A KR 1020050084557A KR 20050084557 A KR20050084557 A KR 20050084557A KR 20050101128 A KR20050101128 A KR 20050101128A
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- Prior art keywords
- polishing
- copper
- metal
- semiconductor device
- film
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
-
- 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
-
- 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
- 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
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P52/00—Grinding, lapping or polishing of wafers, substrates or parts of devices
- H10P52/40—Chemomechanical polishing [CMP]
- H10P52/403—Chemomechanical polishing [CMP] of conductive or resistive materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P70/00—Cleaning of wafers, substrates or parts of devices
- H10P70/20—Cleaning during device manufacture
- H10P70/27—Cleaning during device manufacture during, before or after processing of conductive materials, e.g. polysilicon or amorphous silicon layers
- H10P70/277—Cleaning during device manufacture during, before or after processing of conductive materials, e.g. polysilicon or amorphous silicon layers the processing being a planarisation of conductive layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W20/00—Interconnections in chips, wafers or substrates
- H10W20/01—Manufacture or treatment
- H10W20/031—Manufacture or treatment of conductive parts of the interconnections
- H10W20/062—Manufacture or treatment of conductive parts of the interconnections by smoothing of conductive parts, e.g. by planarisation
-
- 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
- B24B37/044—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor characterised by the composition of the lapping agent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims (34)
- 기판상에 형성된 요철을 갖는 금속막을 연마하여 평탄화하는 반도체장치의 연마방법으로서,상기 금속막의 요철부분을 산화성물질에 의해 산화시켜 금속산화물을 형성하고,상기 금속산화막을 상기 금속막의 pH-산화환원 전위도에서 pH 및 산화환원 전위가 상기 금속막의 부식영역에 있는 수용화물질에 의해 수용화하여 상기 금속산화막을 용출함으로써 상기 금속막을 연마하고,그 연마에 있어서 상기 금속산화물의 볼록부분을 연마포(硏磨布)의 기계적 연마에 의해 국소적으로 가열함으로써 상기 수용화의 반응을 촉진하여, 상기 볼록부분의 금속산화막의 연마속도를 오목부분의 금속산화막의 연마속도 보다 크게 하여,상기 요철을 갖는 금속막을 평탄화하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서,상기 금속막은, 구리 또는 구리를 주성분으로 하는 금속 또는 구리화합물을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서,상기 방식성물질은 벤조트리아졸 또는 그 유도체를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제3항에 있어서,상기 벤조트리아졸 또는 그 유도체의 농도는, 0.001 ~ 1 중량%의 범위내인 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서,상기 방식성물질이 계면활성제를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서,상기 산화성물질은, 과산화수소를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서,상기 수용화물질은 산 또는 그 염을 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제7항에 있어서,상기 산은 유기산을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제8항에 있어서,상기 유기산은 구연산, 젖산, 주석산, 프탈산, 초산(酢酸) 중 어느 하나를 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서,상기 수용화물질은 암모늄화합물을 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제10항에 있어서,상기 암모늄화합물은 수산화암모늄인 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서,상기 금속막은 제1 금속층 및 제2 금속층을 가지며, 상기 제1 금속층이 수용성화되는 속도는 상기 제2 금속층이 수용성화되는 속도 보다 빠른 것을 특징으로 하는 반도체장치의 제조방법.
- 제12항에 있어서,상기 제1 금속층은 구리 또는 구리를 주성분으로 하는 금속 또는 구리화합물을 포함하고, 상기 제2 금속층은 티탄 또는 티탄합금 또는 티탄화합물을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 기판상에 형성된 요철을 갖는 구리막을 연마하여 평탄화하는 반도체장치의 제조방법으로서,상기 구리막의 요철부분을 산화성물질에 의해 산화시켜 구리산화물을 형성하고,상기 구리산화막을 상기 구리막의 pH-산화환원 전위도에서 pH와 산화환원 전위가 상기 구리막의 부식영역에 있는 수용화물질에 의해 수용화하여 상기 구리산화막을 용출함으로써 상기 구리막을 연마하고,그 연마에 있어서 상기 구리산화물의 볼록 부분을 연마포의 기계적 연마에 의해 국소적으로 가열함으로써 상기 수용화의 반응을 촉진하여, 상기 볼록 부분의 구리산화막의 연마속도를 오목부분의 구리산화막의 연마속도 보다 크게 하여,상기 요철을 갖는 구리막을 평탄화하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제14항에 있어서,상기 방식성 물질은 벤조트리아졸 또는 그 유도체를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제15항에 있어서,상기 벤조트리아졸 또는 그 유도체의 농도는 0.001 ~ 1 중량%의 범위내인 것을 특징으로 하는 반도체장치의 제조방법.
- 제14항에 있어서,상기 방식성물질이 계면활성제를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제14항에 있어서,상기 구리막의 산화성물질이 과산화수소를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제14항에 있어서,상기 구리산화막의 수용화물질은 산 또는 그 염을 포함하는 물질에 의해 이루어지는 것을 특징으로 하는 반도체장치의 제조방법.
- 제19항에 있어서,상기 염은 유기산을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제20항에 있어서,상기 유기산은 구연산, 젖산, 주석산, 프탈산, 초산(酢酸) 중 어느 하나를 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제14항에 있어서,상기 구리산화막의 수용화물질은 암모늄화합물을 포함하는 물질에 의해서 이루어지는 것을 특징으로 하는 반도체장치의 제조방법.
- 제22항에 있어서,상기 암모늄화합물은 수산화암모늄인 것을 특징으로 하는 반도체장치의 제조방법.
- 기판상에 형성된 절연막상에 트랜치를 형성하고, 상기 트랜치 내 및 상기 절연막 상에 제1 금속막과 제2 금속막을 형성하고,기판상에 형성된 요철을 갖는 상기 제2 금속막을 연마하여 평탄화하는 반도체장치의 제조방법에 있어서,상기 제2 금속막의 요철부분을 산화성물질에 의해 산화시켜 금속산화물을 형성하고, 상기 제2 금속산화막을 상기 제2 금속막의 pH-산화환원 전위도에서 pH 및 산화환원 전위가 상기 제2 금속막의 부식영역에 있는 수용화물질에 의해 수용화하여 상기 제2 금속산화막을 용출시킴으로써 상기 제2 금속막을 연마하고,그 연마에 있어서 상기 제2 금속산화물의 볼록부분을 연마포의 기계적 연마에 의해 국소적으로 가열함으로써 상기 수용화의 반응을 촉진하여, 상기 볼록부분의 제2 금속산화막의 연마속도를 오목부분의 제2 금속산화막의 연마속도 보다 크게하여,상기 요철을 갖는 제2 금속막을 평탄화하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제24항에 있어서,상기 방식성 물질은 벤조트리아졸 또는 그 유도체를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제25항에 있어서,상기 벤조트리아졸 또는 그 유도체의 농도는 0.001 ~ 1 중량%의 범위내인 것을 특징으로 하는 반도체장치의 제조방법.
- 제24항에 있어서,상기 방식성 물질이 계면활성제를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제24항에 있어서,상기 산화성물질은 과산화수소를 포함하는 물질인 것을 특징으로 하는 반도체장치의 제조방법.
- 제24항에 있어서,상기 수용화물질은 산 또는 그 염을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제29항에 있어서,상기 산은 유기산을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제30항에 있어서,상기 유기산은 구연산, 젖산, 주석산, 프탈산, 초산(酢酸) 중 어느 하나를 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제24항에 있어서,상기 수용화물질은 암모늄화합물을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제32항에 있어서,상기 암모늄화합물은 수산화암모늄인 것을 특징으로 하는 반도체장치의 제조방법.
- 제24항에 있어서,상기 제1 금속층은 구리 또는 구리를 주성분으로 하는 금속 또는 구리화합물을 포함하고, 상기 제2 금속층은 티탄 또는 티탄합금 또는 티탄산화합물을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29993797A JP3371775B2 (ja) | 1997-10-31 | 1997-10-31 | 研磨方法 |
| JPJP-P-1997-00299937 | 1997-10-31 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980044809A Division KR100624589B1 (ko) | 1997-10-31 | 1998-10-26 | 연마방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20050101128A true KR20050101128A (ko) | 2005-10-20 |
| KR100724023B1 KR100724023B1 (ko) | 2007-06-04 |
Family
ID=17878748
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980044809A Expired - Lifetime KR100624589B1 (ko) | 1997-10-31 | 1998-10-26 | 연마방법 |
| KR1020050084557A Expired - Lifetime KR100724023B1 (ko) | 1997-10-31 | 2005-09-12 | 반도체장치의 제조방법 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980044809A Expired - Lifetime KR100624589B1 (ko) | 1997-10-31 | 1998-10-26 | 연마방법 |
Country Status (8)
| Country | Link |
|---|---|
| US (5) | US6117775A (ko) |
| EP (2) | EP1760127A2 (ko) |
| JP (1) | JP3371775B2 (ko) |
| KR (2) | KR100624589B1 (ko) |
| CN (2) | CN1974129A (ko) |
| DE (1) | DE69836612T2 (ko) |
| SG (1) | SG95588A1 (ko) |
| TW (1) | TW380083B (ko) |
Families Citing this family (195)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8092707B2 (en) | 1997-04-30 | 2012-01-10 | 3M Innovative Properties Company | Compositions and methods for modifying a surface suited for semiconductor fabrication |
| JP3371775B2 (ja) | 1997-10-31 | 2003-01-27 | 株式会社日立製作所 | 研磨方法 |
| JP2000040679A (ja) * | 1998-07-24 | 2000-02-08 | Hitachi Ltd | 半導体集積回路装置の製造方法 |
| JP2000183003A (ja) * | 1998-10-07 | 2000-06-30 | Toshiba Corp | 銅系金属用研磨組成物および半導体装置の製造方法 |
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1997
- 1997-10-31 JP JP29993797A patent/JP3371775B2/ja not_active Expired - Lifetime
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1998
- 1998-10-01 TW TW087116346A patent/TW380083B/zh not_active IP Right Cessation
- 1998-10-13 SG SG9804195A patent/SG95588A1/en unknown
- 1998-10-26 KR KR1019980044809A patent/KR100624589B1/ko not_active Expired - Lifetime
- 1998-10-30 US US09/182,438 patent/US6117775A/en not_active Expired - Lifetime
- 1998-10-30 CN CNA2006101670612A patent/CN1974129A/zh active Pending
- 1998-10-30 CN CNB981236723A patent/CN1298508C/zh not_active Expired - Lifetime
- 1998-10-30 EP EP06020541A patent/EP1760127A2/en not_active Withdrawn
- 1998-10-30 DE DE69836612T patent/DE69836612T2/de not_active Expired - Lifetime
- 1998-10-30 EP EP98308923A patent/EP0913442B1/en not_active Expired - Lifetime
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- 2005-09-12 KR KR1020050084557A patent/KR100724023B1/ko not_active Expired - Lifetime
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Also Published As
| Publication number | Publication date |
|---|---|
| EP0913442A3 (en) | 2002-03-06 |
| US6117775A (en) | 2000-09-12 |
| EP0913442A2 (en) | 1999-05-06 |
| EP1760127A2 (en) | 2007-03-07 |
| US7279425B2 (en) | 2007-10-09 |
| CN1216727A (zh) | 1999-05-19 |
| US20070167015A1 (en) | 2007-07-19 |
| US20050074967A1 (en) | 2005-04-07 |
| CN1298508C (zh) | 2007-02-07 |
| US7132367B2 (en) | 2006-11-07 |
| KR100624589B1 (ko) | 2006-11-30 |
| CN1974129A (zh) | 2007-06-06 |
| EP0913442B1 (en) | 2006-12-13 |
| US6596638B1 (en) | 2003-07-22 |
| JPH11135466A (ja) | 1999-05-21 |
| US7563716B2 (en) | 2009-07-21 |
| JP3371775B2 (ja) | 2003-01-27 |
| KR100724023B1 (ko) | 2007-06-04 |
| DE69836612T2 (de) | 2007-10-25 |
| TW380083B (en) | 2000-01-21 |
| US20070029285A1 (en) | 2007-02-08 |
| SG95588A1 (en) | 2003-04-23 |
| KR19990037374A (ko) | 1999-05-25 |
| DE69836612D1 (de) | 2007-01-25 |
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