KR0139513B1 - 반도체 장치 - Google Patents
반도체 장치Info
- Publication number
- KR0139513B1 KR0139513B1 KR1019920001164A KR920001164A KR0139513B1 KR 0139513 B1 KR0139513 B1 KR 0139513B1 KR 1019920001164 A KR1019920001164 A KR 1019920001164A KR 920001164 A KR920001164 A KR 920001164A KR 0139513 B1 KR0139513 B1 KR 0139513B1
- Authority
- KR
- South Korea
- Prior art keywords
- impurity region
- conductivity type
- region
- insulating film
- impurity
- Prior art date
Links
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
- H10B12/30—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
- 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
- H10B12/0385—Making a connection between the transistor and the capacitor, e.g. buried strap
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (3)
- 반도체 장치에 있어서,주면상의 제 1 전도형 제 1 불순물 영역과 상기 제 1 불순물 영역상에 형성된 제 2 전도형 제 2 불순물 영역을 가지는 반도체 기판과,상기 제 2 불순물 영역에 형성된 제 1 전도형 소스 및 드레인 영역을 가지는 절연 게이트형 전계 효과 트랜지스터와,기억 전극, 상기 기억 전극을 둘러싸고 있는 용량성 절연막과, 상기 용량성 절연막의 소정의 상부 부분을 제외하고 용량성 절연막을 둘러싸는 제 1 전도형 불순물 층을 포함하는 트렌치 캐패시터을 구비하며,상기 트렌치 캐패시터는 상기 제 2 불순물 영역을 통과하도록 상기 반도체 기판의 제 2 불순물 영역의 면상에 제공되고,상기 트렌치 캐패시터의 불순물 층은 상기 소스 및 드레인 영역중 하나의 영역에 제 2 전도형 불순물 층을 통해 접속되고, 상기 제 2 전도형 불순물 층은 절연막을 통해 기억 전극에 대향되며,상기 기억 전극은 용량성 절연막의 측벽 개구를 통해 소스 및 드레인 영역중 하나의 영역에 접속되는 것을 특징으로 하는 반도체 장치.
- 제 1 항에 있어서,상기 트렌치 캐패시터는 소정 깊이만큼 반도체 장치의 제 1 불순물 영역으로 연장되는 것을 특징으로 하는 반도체 장치.
- 반도체 장치에 있어서,주면상에 제 1 전도형 제 1 불순물 영역이 선택적으로 제공되고, 상기 제 1 불순물 영역상에 제 2 전도형 제 2 불순물 영역이 제공된 반도체 기판과,상기 제 2 불순물 영역에 형성된 제 1 전도형의 제 3 및 제 4 불순물 영역이 되는 소스 및 드레인 영경르 가지는 절연 게이트형 전계 효과 트랜지스터와,상기 제 3 불순물 영역에 접속된 접촉부를 가지고, 제 2 불순물 영역을 지나도록 제 2 불순물 영역의 면에 제공된 트렌치 캐패시터와,상기 접촉부를 제외하고 트렌치 캐패시터의 내부 벽면상에 제공된 용량성 절연막과,상기 접촉부를 제외하고 트렌치 캐패시터의 내부 벽면상에서 접촉부에 근접한 부분에 제공된 절연막과,상기 용량성 절연막을 커버하기 위해 형성되고, 상기 접촉부에서 제 3 불순물 영역에 접속된 전도체와,상기 제 3 불순물 영역으로부터 분리된 부분에서 용량성 절연막을 둘러싸고, 제 1 전도형이 되는 제 5 불순물 영역과,제 3 및 제 5 불순물 영역과 접촉하며, 제 2 전도형이 되는 제 6 불순물 영역을 구비하는 것을 특징으로 하는 반도체 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP91-008275 | 1991-01-28 | ||
JP03008275A JP3128834B2 (ja) | 1991-01-28 | 1991-01-28 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920015559A KR920015559A (ko) | 1992-08-27 |
KR0139513B1 true KR0139513B1 (ko) | 1998-06-01 |
Family
ID=11688628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920001164A KR0139513B1 (ko) | 1991-01-28 | 1992-01-28 | 반도체 장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5187550A (ko) |
JP (1) | JP3128834B2 (ko) |
KR (1) | KR0139513B1 (ko) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5574621A (en) * | 1995-03-27 | 1996-11-12 | Motorola, Inc. | Integrated circuit capacitor having a conductive trench |
JP3191693B2 (ja) * | 1996-08-29 | 2001-07-23 | 日本電気株式会社 | 半導体記憶装置の製造方法 |
US6020609A (en) * | 1997-10-31 | 2000-02-01 | Texas Instruments - Acer Incorporated | DRAM cell with a rugged stacked trench (RST) capacitor |
KR19990072936A (ko) * | 1998-02-27 | 1999-09-27 | 가나이 쓰도무 | 아이솔레이터및그것을사용하는모뎀장치 |
EP0971414A1 (de) * | 1998-06-15 | 2000-01-12 | Siemens Aktiengesellschaft | Grabenkondensator mit Isolationskragen und vergrabenen Kontakt und entsprechendes Herstellungsverfahren |
US6828191B1 (en) | 1998-06-15 | 2004-12-07 | Siemens Aktiengesellschaft | Trench capacitor with an insulation collar and method for producing a trench capacitor |
EP0977266A1 (de) * | 1998-06-15 | 2000-02-02 | Siemens Aktiengesellschaft | Grabenkondensator mit Isolationskragen und entsprechendes Herstellungsverfahren |
US6211544B1 (en) * | 1999-03-18 | 2001-04-03 | Infineon Technologies North America Corp. | Memory cell layout for reduced interaction between storage nodes and transistors |
US6190971B1 (en) | 1999-05-13 | 2001-02-20 | International Business Machines Corporation | Formation of 5F2 cell with partially vertical transistor and gate conductor aligned buried strap with raised shallow trench isolation region |
JP3943932B2 (ja) * | 2001-12-27 | 2007-07-11 | 株式会社東芝 | 半導体装置の製造方法 |
TWI222720B (en) * | 2003-09-19 | 2004-10-21 | Promos Technologies Inc | DRAM process and structure |
US8557657B1 (en) * | 2012-05-18 | 2013-10-15 | International Business Machines Corporation | Retrograde substrate for deep trench capacitors |
US9553011B2 (en) * | 2012-12-28 | 2017-01-24 | Texas Instruments Incorporated | Deep trench isolation with tank contact grounding |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4801988A (en) * | 1986-10-31 | 1989-01-31 | International Business Machines Corporation | Semiconductor trench capacitor cell with merged isolation and node trench construction |
US4918502A (en) * | 1986-11-28 | 1990-04-17 | Hitachi, Ltd. | Semiconductor memory having trench capacitor formed with sheath electrode |
EP0283964B1 (en) * | 1987-03-20 | 1994-09-28 | Nec Corporation | Dynamic random access memory device having a plurality of improved one-transistor type memory cells |
US4794434A (en) * | 1987-07-06 | 1988-12-27 | Motorola, Inc. | Trench cell for a dram |
-
1991
- 1991-01-28 JP JP03008275A patent/JP3128834B2/ja not_active Expired - Lifetime
-
1992
- 1992-01-27 US US07/826,537 patent/US5187550A/en not_active Expired - Lifetime
- 1992-01-28 KR KR1019920001164A patent/KR0139513B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP3128834B2 (ja) | 2001-01-29 |
US5187550A (en) | 1993-02-16 |
JPH04252071A (ja) | 1992-09-08 |
KR920015559A (ko) | 1992-08-27 |
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