KR100411026B1 - 반도체 소자의 제조 방법 - Google Patents
반도체 소자의 제조 방법 Download PDFInfo
- Publication number
- KR100411026B1 KR100411026B1 KR10-2001-0079655A KR20010079655A KR100411026B1 KR 100411026 B1 KR100411026 B1 KR 100411026B1 KR 20010079655 A KR20010079655 A KR 20010079655A KR 100411026 B1 KR100411026 B1 KR 100411026B1
- Authority
- KR
- South Korea
- Prior art keywords
- etching process
- etch stop
- interlayer insulating
- forming
- stop layer
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 119
- 238000000034 method Methods 0.000 claims abstract description 109
- 238000005530 etching Methods 0.000 claims abstract description 94
- 239000011229 interlayer Substances 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 11
- 150000004767 nitrides Chemical class 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 39
- 239000003990 capacitor Substances 0.000 claims description 35
- 230000001052 transient effect Effects 0.000 claims description 23
- 238000001312 dry etching Methods 0.000 claims description 17
- 229920002120 photoresistant polymer Polymers 0.000 claims description 14
- 238000000151 deposition Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 20
- 238000009825 accumulation Methods 0.000 description 11
- 238000007796 conventional method Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000005689 Fowler Nordheim tunneling Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
-
- 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
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
-
- 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
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
- H01L21/76816—Aspects relating to the layout of the pattern or to the size of vias or trenches
-
- 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
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76829—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
- H01L21/76834—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers formation of thin insulating films on the sidewalls or on top of conductors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/48—Data lines or contacts therefor
- H10B12/485—Bit line contacts
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/31—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor
- H10B12/315—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor with the capacitor higher than a bit line
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/48—Data lines or contacts therefor
- H10B12/482—Bit lines
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/48—Data lines or contacts therefor
- H10B12/488—Word lines
Landscapes
- 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)
- Drying Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (11)
- 반도체 기판 상에 워드라인을 형성하고, 상기 워드라인을 포함한 반도체 기판 상에 워드라인/기판 식각 정지층을 형성하는 단계;상기 워드라인/기판 식각 정지층을 포함한 전체구조 상에 제 1 층간 절연막을 형성하는 단계;상기 제 1 층간 절연막 상에 비트라인을 형성하고, 상기 비트라인 상에 비트라인 식각 정지층을 형성하는 단계;상기 비트라인 식각 정지층을 포함한 전체구조 상에 제 2 층간 절연막을 형성하는 단계;상기 제 2 층간 절연막 상에 캐패시터를 형성하고, 상기 캐패시터 상에 캐패시터 식각 정지층을 형성하는 단계;상기 캐패시터 식각 정지층을 포함한 전체구조 상에 제 3 층간 절연막을 형성하는 단계;상기 제 3 층간 절연막 상에 콘택홀 형성용 포토레지스트 패턴을 형성하는 단계;상기 포토레지스트 패턴을 식각 마스크로 한 제 1 플라즈마 건식 식각 공정으로 상기 층간 절연막들을 식각하여 상기 식각 정지층 각각이 저면을 이루는 콘택홀들을 형성하는 단계; 및상기 콘택홀의 저면에 노출된 상기 식각 정지층 각각을 제 2 플라즈마 건식식각 공정으로 제거하여 콘택홀들 완성하는 단계를 포함하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 층간 절연막들은 산화물 계통의 물질로 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 식각 정지층들은 질화물 계통의 물질을 10 내지 10,000Å의 두께로 증착하여 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 제 1 플라즈마 건식 식각 공정은 상기 층간 절연막들에 대한 주 식각 공정과, 상기 식각 정지층이 노출되기 시작하는 시점부터 적용되는 과도 식각 공정으로 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 4 항에 있어서,상기 과도 식각 공정은 C5F8가스를 주 식각 가스로 하여 상기 식각 정지층에 대하여 20 : 1 의 선택비로 상기 층간 절연막을 선택적으로 식각 하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 4 항에 있어서,상기 과도 식각 공정은 상기 주 식각 공정 시간을 기준으로 1 내지 300% 범위로 상기 층간 절연막을 선택적으로 식각 하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 제 2 플라즈마 건식 식각 공정은 상기 식각 정지층들에 대한 주 식각 공정과, 상기 식각 정지층의 하부층이 노출되기 시작하는 시점부터 적용되는 과도 식각 공정으로 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 7 항에 있어서,상기 과도 식각 공정은 CH2F2/C2HF5가스를 주 식각 가스로 하여 실시하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 7 항에 있어서,상기 과도 식각 공정은 상기 주 식각 공정 시간을 기준으로 1 내지 300% 범위로 실시하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 제 3 층간 절연막과 상기 포토레지스트 패턴 사이에 하드 마스크층을 형성하는 단계를 더 추가하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 10 항에 있어서,상기 하드 마스크층은 질화물 계통의 물질을 10 내지 10,000Å의 두께로 증착하여 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0079655A KR100411026B1 (ko) | 2001-12-15 | 2001-12-15 | 반도체 소자의 제조 방법 |
US10/287,786 US6706590B2 (en) | 2001-12-15 | 2002-11-05 | Method of manufacturing semiconductor device having etch stopper for contact hole |
JP2002334734A JP3833603B2 (ja) | 2001-12-15 | 2002-11-19 | 半導体素子の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0079655A KR100411026B1 (ko) | 2001-12-15 | 2001-12-15 | 반도체 소자의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030049449A KR20030049449A (ko) | 2003-06-25 |
KR100411026B1 true KR100411026B1 (ko) | 2003-12-18 |
Family
ID=19717073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2001-0079655A KR100411026B1 (ko) | 2001-12-15 | 2001-12-15 | 반도체 소자의 제조 방법 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6706590B2 (ko) |
JP (1) | JP3833603B2 (ko) |
KR (1) | KR100411026B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7602068B2 (en) * | 2006-01-19 | 2009-10-13 | International Machines Corporation | Dual-damascene process to fabricate thick wire structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990043724A (ko) * | 1997-11-29 | 1999-06-15 | 구본준 | 반도체소자의 제조방법 |
KR20010048576A (ko) * | 1999-11-27 | 2001-06-15 | 박종섭 | 반도체소자의 메탈콘택 |
KR100323450B1 (ko) * | 1999-12-31 | 2002-02-06 | 박종섭 | 디램(dram) 셀 캐패시터의 제조 방법 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5670404A (en) * | 1996-06-21 | 1997-09-23 | Industrial Technology Research Institute | Method for making self-aligned bit line contacts on a DRAM circuit having a planarized insulating layer |
-
2001
- 2001-12-15 KR KR10-2001-0079655A patent/KR100411026B1/ko active IP Right Grant
-
2002
- 2002-11-05 US US10/287,786 patent/US6706590B2/en not_active Expired - Lifetime
- 2002-11-19 JP JP2002334734A patent/JP3833603B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990043724A (ko) * | 1997-11-29 | 1999-06-15 | 구본준 | 반도체소자의 제조방법 |
KR20010048576A (ko) * | 1999-11-27 | 2001-06-15 | 박종섭 | 반도체소자의 메탈콘택 |
KR100323450B1 (ko) * | 1999-12-31 | 2002-02-06 | 박종섭 | 디램(dram) 셀 캐패시터의 제조 방법 |
Also Published As
Publication number | Publication date |
---|---|
JP2003197745A (ja) | 2003-07-11 |
KR20030049449A (ko) | 2003-06-25 |
JP3833603B2 (ja) | 2006-10-18 |
US6706590B2 (en) | 2004-03-16 |
US20030113966A1 (en) | 2003-06-19 |
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