KR100451515B1 - 반도체소자의 캐패시터 제조방법 - Google Patents
반도체소자의 캐패시터 제조방법 Download PDFInfo
- Publication number
- KR100451515B1 KR100451515B1 KR10-2002-0036669A KR20020036669A KR100451515B1 KR 100451515 B1 KR100451515 B1 KR 100451515B1 KR 20020036669 A KR20020036669 A KR 20020036669A KR 100451515 B1 KR100451515 B1 KR 100451515B1
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- capacitor
- oxide film
- dram
- forming
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 49
- 239000004065 semiconductor Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 16
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 10
- 229920005591 polysilicon Polymers 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 6
- 238000000059 patterning Methods 0.000 claims abstract description 3
- 238000005468 ion implantation Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 230000010354 integration Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000007943 implant Substances 0.000 description 1
Classifications
-
- 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
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/03—Making the capacitor or connections thereto
- H10B12/038—Making the capacitor or connections thereto the capacitor being in a trench in the substrate
-
- 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
- H01L21/76831—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 in via holes or trenches, e.g. non-conductive sidewall liners
-
- 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
-
- 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
- H10B12/37—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor being at least partially in a trench in the substrate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
- H10D1/696—Electrodes comprising multiple layers, e.g. comprising a barrier layer and a metal layer
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (5)
- 반도체기판의 디램셀 영역과 로직부 및 디램페리부에 제1 및 2 트렌치를 형성하는 단계;상기 디램셀영역의 제1트렌치 및 로직부 및 디램페리부의 제2트렌치내에 트렌치산화막을 형성하는 단계;상기 제1트렌치 내에 매립된 트렌치산화막의 70%를 제거하는 단계;상기 산화막의 일부가 제거된 제 1트렌치측면에 틸트를 주어 평판의 도핑농도와 동일하게 캐패시터의 문턱전압 조절용 이온주입을 진행하는 단계;상기 이온주입이 완료된 제1트렌치의 측면을 포함한 반도체기판의 표면상에 산화막을 형성하는 단계;상기 산화막상에 폴리실리콘층을 형성한후 이를 선택적으로 패터닝하여 디램셀영역의 캐패시터 플레이트전극과 게이트전극을 형성하는 단계를 포함하여 구성되는 것을 특징으로하는 반도체소자의 캐패시터 제조방법.
- 제1항에 있어서, 상기 디램셀영역의 제1트렌치는 로직부 및 디램 페리부의 제2트렌치에 비해 깊게 형성되어 있는 것을 특징으로하는 반도체소자의 캐패시터 제조방법.
- 제1항에 있어서, 상기 제1트렌치의 측면부에 형성된 산화막 부분은 캐패시터 의 유전체로 사용하는 것을 특징으로하는 반도체소자의 마스크패턴 형성방법.
- 삭제
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0036669A KR100451515B1 (ko) | 2002-06-28 | 2002-06-28 | 반도체소자의 캐패시터 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0036669A KR100451515B1 (ko) | 2002-06-28 | 2002-06-28 | 반도체소자의 캐패시터 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040001453A KR20040001453A (ko) | 2004-01-07 |
KR100451515B1 true KR100451515B1 (ko) | 2004-10-06 |
Family
ID=37313206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0036669A KR100451515B1 (ko) | 2002-06-28 | 2002-06-28 | 반도체소자의 캐패시터 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100451515B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100584997B1 (ko) * | 2003-07-18 | 2006-05-29 | 매그나칩 반도체 유한회사 | 트렌치 구조의 캐패시터를 구비한 아날로그 반도체 소자및 그제조 방법 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009137566A2 (en) | 2008-05-06 | 2009-11-12 | Buildings And Matters, Llc | Dual-detent retrofitable toilet flush assembly |
KR101009369B1 (ko) * | 2008-11-03 | 2011-01-19 | 정상구 | 수세식변기용 절수기 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61107762A (ja) * | 1984-10-31 | 1986-05-26 | Toshiba Corp | 半導体記憶装置の製造方法 |
KR910007111A (ko) * | 1989-09-26 | 1991-04-30 | 야마지 게이조오 | 퇴적막의 형성법 및 반도체 장치의 제조법 |
JPH056967A (ja) * | 1991-02-13 | 1993-01-14 | Sony Corp | ゲートアレイ |
KR0175007B1 (ko) * | 1995-06-30 | 1999-02-01 | 김광호 | 승압용 모스 커패시터를 갖는 반도체장치 및 그 제조방법 |
-
2002
- 2002-06-28 KR KR10-2002-0036669A patent/KR100451515B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61107762A (ja) * | 1984-10-31 | 1986-05-26 | Toshiba Corp | 半導体記憶装置の製造方法 |
KR910007111A (ko) * | 1989-09-26 | 1991-04-30 | 야마지 게이조오 | 퇴적막의 형성법 및 반도체 장치의 제조법 |
JPH056967A (ja) * | 1991-02-13 | 1993-01-14 | Sony Corp | ゲートアレイ |
KR0175007B1 (ko) * | 1995-06-30 | 1999-02-01 | 김광호 | 승압용 모스 커패시터를 갖는 반도체장치 및 그 제조방법 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100584997B1 (ko) * | 2003-07-18 | 2006-05-29 | 매그나칩 반도체 유한회사 | 트렌치 구조의 캐패시터를 구비한 아날로그 반도체 소자및 그제조 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20040001453A (ko) | 2004-01-07 |
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