KR100474591B1 - 트렌치 분리 구조를 가지는 디램 셀 트랜지스터의 제조 방법 - Google Patents
트렌치 분리 구조를 가지는 디램 셀 트랜지스터의 제조 방법 Download PDFInfo
- Publication number
- KR100474591B1 KR100474591B1 KR10-2002-0022120A KR20020022120A KR100474591B1 KR 100474591 B1 KR100474591 B1 KR 100474591B1 KR 20020022120 A KR20020022120 A KR 20020022120A KR 100474591 B1 KR100474591 B1 KR 100474591B1
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- forming
- electrode
- field oxide
- oxide film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B99/00—Subject matter not provided for in other groups of this subclass
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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
- H01L21/70—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
- H01L21/763—Polycrystalline semiconductor regions
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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
- H01L21/70—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
- H01L21/76232—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials of trenches having a shape other than rectangular or V-shape, e.g. rounded corners, oblique or rounded trench walls
-
- 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
- H10B12/05—Making the transistor
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Semiconductor Memories (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Element Separation (AREA)
Abstract
Description
Claims (10)
- 웰이 구비된 실리콘 기판을 제공하는 단계;상기 기판의 소정 영역에 트렌치를 형성하는 단계;상기 트렌치 결과물에 라이너질화막 및 스페이서 산화막을 차례로 형성하는 단계;상기 스페이서 산화막을 전면 식각하여 상기 트렌치 내에 측벽을 형성하는 단계;상기 측벽을 식각장벽으로 라이너질화막을 식각하여 상기 트렌치 바닥을 노출시키는 단계;상기 노출된 트렌치의 바닥에 상기 웰과 동일한 도전형의 제 1전극을 형성하는 단계;상기 측벽을 제거하는 단계;상기 트렌치 내부의 제 1전극 상에 제 2전극을 형성하는 단계;상기 트렌치의 제 2전극 상에 필드 산화막을 형성하여 상기 트렌치 구조를 평탄화하는 단계; 및상기 필드 산화막을 포함한 전체 구조 상에 게이트 산화막과 게이트 라인을 형성하고 소스/드레인 접합 영역을 형성하는 단계를 포함하는 디램 셀 트랜지스터의 제조 방법.
- 제1항에 있어서, 상기 트렌치의 형성 단계는 상기 실리콘 기판의 표면에 패드 산화막과 패드 질화막을 순차적으로 증착하는 단계와, 상기 패드 질화막과 상기 패드 산화막과 상기 실리콘 기판을 선택적으로 식각하는 단계를 포함하는 것을 특징으로 하는 디램 셀 트랜지스터의 제조 방법.
- 삭제
- 제 1항에 있어서, 상기 라이너 질화막의 증착 단계 전에, 트렌치 측벽 산화를 실시하는 단계를 더 포함하는 것을 특징으로 하는 디램 셀 트랜지스터의 제조 방법.
- 삭제
- 삭제
- 삭제
- 삭제
- 제 1항에 있어서, 상기 제 1 및 제 2전극은 폴리실리콘층으로 이루어지는 것을 특징으로 하는 디램 셀 트랜지스터의 제조 방법.
- 제 1항에 있어서, 상기 제 1및 제 2전극의 형성 단계는 트렌치 결과물 전면에 도핑된 제1 폴리실리콘층을 증착하는 단계와, 상기 트렌치 하단에 일부만 남도록 상기 제1 폴리실리콘층과 상기 측벽 산화막을 제거하여 제1 전극을 형성하는 단계와, 결과물 전면에 도핑된 제2 폴리실리콘층을 증착하는 단계와, 상기 트렌치 하단의 상기 제1 전극 위에 일부만 남도록 상기 제2 폴리실리콘층을 제거하여 제2 전극을 형성하는 단계를 포함하는 것을 특징으로 하는 디램 셀 트랜지스터의 제조 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0022120A KR100474591B1 (ko) | 2002-04-23 | 2002-04-23 | 트렌치 분리 구조를 가지는 디램 셀 트랜지스터의 제조 방법 |
US10/330,617 US6693018B2 (en) | 2002-04-23 | 2002-12-27 | Method for fabricating DRAM cell transistor having trench isolation structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0022120A KR100474591B1 (ko) | 2002-04-23 | 2002-04-23 | 트렌치 분리 구조를 가지는 디램 셀 트랜지스터의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030083444A KR20030083444A (ko) | 2003-10-30 |
KR100474591B1 true KR100474591B1 (ko) | 2005-03-08 |
Family
ID=29208765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0022120A Expired - Fee Related KR100474591B1 (ko) | 2002-04-23 | 2002-04-23 | 트렌치 분리 구조를 가지는 디램 셀 트랜지스터의 제조 방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6693018B2 (ko) |
KR (1) | KR100474591B1 (ko) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10233208A1 (de) * | 2002-07-22 | 2004-03-04 | Infineon Technologies Ag | Halbleiterbauelement mit Grabenisolierung sowie zugehöriges Herstellungsverfahren |
KR100591016B1 (ko) * | 2003-12-30 | 2006-06-22 | 동부일렉트로닉스 주식회사 | 반도체 소자 및 그 제조방법 |
US6979627B2 (en) * | 2004-04-30 | 2005-12-27 | Freescale Semiconductor, Inc. | Isolation trench |
KR100549579B1 (ko) * | 2004-06-14 | 2006-02-08 | 주식회사 하이닉스반도체 | 셀 트랜지스터의 제조 방법 |
US7279770B2 (en) * | 2004-08-26 | 2007-10-09 | Micron Technology, Inc. | Isolation techniques for reducing dark current in CMOS image sensors |
KR100745067B1 (ko) * | 2005-05-18 | 2007-08-01 | 주식회사 하이닉스반도체 | 반도체 소자의 트렌치 소자분리막 및 그 형성방법 |
KR100643468B1 (ko) * | 2005-12-01 | 2006-11-10 | 동부일렉트로닉스 주식회사 | 절연막 스페이서가 형성된 비휘발성 메모리 소자 및 그제조 방법 |
US7811935B2 (en) * | 2006-03-07 | 2010-10-12 | Micron Technology, Inc. | Isolation regions and their formation |
US20070249127A1 (en) * | 2006-04-24 | 2007-10-25 | Freescale Semiconductor, Inc. | Electronic device including a semiconductor layer and a sidewall spacer and a process of forming the same |
US7670895B2 (en) | 2006-04-24 | 2010-03-02 | Freescale Semiconductor, Inc | Process of forming an electronic device including a semiconductor layer and another layer adjacent to an opening within the semiconductor layer |
US7491622B2 (en) * | 2006-04-24 | 2009-02-17 | Freescale Semiconductor, Inc. | Process of forming an electronic device including a layer formed using an inductively coupled plasma |
US7528078B2 (en) | 2006-05-12 | 2009-05-05 | Freescale Semiconductor, Inc. | Process of forming electronic device including a densified nitride layer adjacent to an opening within a semiconductor layer |
US7875758B2 (en) | 2007-01-08 | 2011-01-25 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes George Claude | Systems and methods for the separation of propylene and propane |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63185041A (ja) * | 1987-01-27 | 1988-07-30 | Mitsubishi Electric Corp | 半導体装置 |
JPH05259270A (ja) * | 1992-01-17 | 1993-10-08 | Mitsubishi Electric Corp | 素子分離のための半導体装置およびその製造方法 |
US5859466A (en) * | 1995-06-07 | 1999-01-12 | Nippon Steel Semiconductor Corporation | Semiconductor device having a field-shield device isolation structure and method for making thereof |
JP2001148418A (ja) * | 1999-11-19 | 2001-05-29 | Mitsubishi Electric Corp | 半導体装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920004368B1 (ko) * | 1989-09-04 | 1992-06-04 | 재단법인 한국전자통신연구소 | 분리병합형 홈의 구조를 갖는 d램셀과 그 제조방법 |
JPH10256394A (ja) | 1997-03-12 | 1998-09-25 | Internatl Business Mach Corp <Ibm> | 半導体構造体およびデバイス |
TW388877B (en) | 1997-04-23 | 2000-05-01 | Toshiba Corp | Semiconductor device and its manufacturing process |
US6103592A (en) | 1997-05-01 | 2000-08-15 | International Business Machines Corp. | Manufacturing self-aligned polysilicon fet devices isolated with maskless shallow trench isolation and gate conductor fill technology with active devices and dummy doped regions formed in mesas |
US6080638A (en) | 1999-02-05 | 2000-06-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Formation of thin spacer at corner of shallow trench isolation (STI) |
-
2002
- 2002-04-23 KR KR10-2002-0022120A patent/KR100474591B1/ko not_active Expired - Fee Related
- 2002-12-27 US US10/330,617 patent/US6693018B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63185041A (ja) * | 1987-01-27 | 1988-07-30 | Mitsubishi Electric Corp | 半導体装置 |
JPH05259270A (ja) * | 1992-01-17 | 1993-10-08 | Mitsubishi Electric Corp | 素子分離のための半導体装置およびその製造方法 |
US5859466A (en) * | 1995-06-07 | 1999-01-12 | Nippon Steel Semiconductor Corporation | Semiconductor device having a field-shield device isolation structure and method for making thereof |
JP2001148418A (ja) * | 1999-11-19 | 2001-05-29 | Mitsubishi Electric Corp | 半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
US20030199136A1 (en) | 2003-10-23 |
KR20030083444A (ko) | 2003-10-30 |
US6693018B2 (en) | 2004-02-17 |
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