KR930000581B1 - 자기 정렬된 캐패시터 콘택을 갖는 셀 제조방법 및 구조 - Google Patents
자기 정렬된 캐패시터 콘택을 갖는 셀 제조방법 및 구조 Download PDFInfo
- Publication number
- KR930000581B1 KR930000581B1 KR1019900004662A KR900004662A KR930000581B1 KR 930000581 B1 KR930000581 B1 KR 930000581B1 KR 1019900004662 A KR1019900004662 A KR 1019900004662A KR 900004662 A KR900004662 A KR 900004662A KR 930000581 B1 KR930000581 B1 KR 930000581B1
- Authority
- KR
- South Korea
- Prior art keywords
- gate
- forming
- capacitor
- concentration
- oxide film
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000012535 impurity Substances 0.000 claims description 29
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 29
- 229920005591 polysilicon Polymers 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims 3
- 239000004065 semiconductor Substances 0.000 claims 3
- 150000002500 ions Chemical class 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000000059 patterning Methods 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 238000005468 ion implantation Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000001020 plasma etching Methods 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
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
- H10B12/31—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
- H10B12/01—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
- H10B12/033—Making the capacitor or connections thereto the capacitor extending over the transistor
- H10B12/0335—Making a connection between the transistor and the capacitor, e.g. plug
-
- 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
- H10B12/033—Making the capacitor or connections thereto the capacitor extending 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
- H10B12/48—Data lines or contacts therefor
- H10B12/485—Bit line contacts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (4)
- 제1도전형 반도체 기판(201)에 필드산화막(202)을 형성하고 게이트 산화막(215)을 성장하는 제1공정과, 전면에 게이트 폴리실리콘(203)과 제1산화막 (204)을 증착하고 패터닝하여 게이트를 형성하는 제2공정과, 상기 게이트를 마스크로 하여 기판(201)에 저농도 제2도전형 불순물층(205a,205b)를 형성하는 제3공정과, 전면에 제2산화막(206)과 스택폴리실리콘(207)을 차례로 증착하고 패턴마스크를 이용하여 커패시터 형성영역에 스토리지 콘택을 형성하는 제4공정과, 스토리지 콘택부위에 스토리지 노드 전극을 형성하고 스토리지 노드 전극에 유전체를 형성하는 제5공정과, 전면에 플레이트 전극을 형성하고 불필요한 부분을 제거하여 커패시터를 형성하는 제6공정과, 상기 제2산화막(206a)의 비트라인 콘택부위를 제거하고 저농도 제2도전형 불순물층(205b)에 고농도 제2도전형 이온을 주입하는 제7공정과, 전면에 제3산화막 (213)과 제4산화막(214)을 증착하고 비트라인 콘택을 형성하고 비트라인을 형성하는 제8공정으로 이루어짐을 특징으로 하는 자기 정렬된 커패시터 콘택을 갖는 셀 제조 방법.
- 제1항에 있어서, 제4공정은 저농도 n형 불순물층(205a) 상측의 스택폴리 실리콘(207)을 패턴 마스크를 이용하여 선택 제거하고 스택폴리 실리콘(207)을 마스크로 이용하여 제2산화막(206)을 RIE하여 자기 정렬된 스토리지 콘택을 형성함을 특징으로 하는 자기 정렬된 커패시터 콘택을 갖는 셀 제조방법.
- 제1항에 있어서, 제6 및 제7공정은 제4공정에서 사용한 패턴마스크를 이용하여 플레이트 전극의 불필요한 부분을 제거하고 제2산화막(206a)을 RIE하며 게이트에 측벽을 형성하고 저농도 제2도전형 불순물층(205b)에 고농도 제2도전형 이온주입함을 특징으로 하는 자기정렬된 커패시터 콘택을 갖는 셀 제조방법.
- 제1도전형 반도체 기판, 상기 제1도전형 반도체 기판 상측에 형성되어 신호 전압을 인가하기 위한 게이트; 게이트 일측 기판의 액티브 영역에 형성되고 커패시터의 스토리지 노드 콘택이 형성될 저농도 제2도전형 불순물층(205a);게이트 타측기판의 액티브 영역에 형성되고 비트라인 콘택이 될 고농도 제2도전형 불순물층(212); 저농도 제2도전형 불순물층(205a)에 연결되어 형성되는 커패시터;고농도 제2도전형 불순물층(212)에 연결되는 비트라인;을 포함하여 구성됨을 특징으로 하는 자기 정렬된 캐패시터 콘택을 갖는 셀 구조.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900004662A KR930000581B1 (ko) | 1990-04-04 | 1990-04-04 | 자기 정렬된 캐패시터 콘택을 갖는 셀 제조방법 및 구조 |
US07/679,956 US5155056A (en) | 1990-04-04 | 1991-04-03 | Process for formation of cells having self-aligned capacitor contacts, and structure thereof |
JP3071638A JP2568316B2 (ja) | 1990-04-04 | 1991-04-04 | 半導体メモリの製造方法 |
GB9107068A GB2242782B (en) | 1990-04-04 | 1991-04-04 | Process and structure for a transistor-capacitor cell |
DE4110906A DE4110906C2 (de) | 1990-04-04 | 1991-04-04 | Verfahren zum Herstellen von DRAM-Zellen mit zumindest einem selbstausgerichteten Kondensatorkontakt und Zellstruktur mit zumindest einem selbstausgerichteten Kondensatorkontakt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900004662A KR930000581B1 (ko) | 1990-04-04 | 1990-04-04 | 자기 정렬된 캐패시터 콘택을 갖는 셀 제조방법 및 구조 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910019226A KR910019226A (ko) | 1991-11-30 |
KR930000581B1 true KR930000581B1 (ko) | 1993-01-25 |
Family
ID=19297706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900004662A KR930000581B1 (ko) | 1990-04-04 | 1990-04-04 | 자기 정렬된 캐패시터 콘택을 갖는 셀 제조방법 및 구조 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5155056A (ko) |
JP (1) | JP2568316B2 (ko) |
KR (1) | KR930000581B1 (ko) |
DE (1) | DE4110906C2 (ko) |
GB (1) | GB2242782B (ko) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
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IT1239707B (it) * | 1990-03-15 | 1993-11-15 | St Microelectrics Srl | Processo per la realizzazione di una cella di memoria rom a bassa capacita' di drain |
KR930009594B1 (ko) * | 1991-01-30 | 1993-10-07 | 삼성전자 주식회사 | 고집적 반도체 메모리장치 및 그 제조방법 |
TW243541B (ko) * | 1991-08-31 | 1995-03-21 | Samsung Electronics Co Ltd | |
US5134085A (en) * | 1991-11-21 | 1992-07-28 | Micron Technology, Inc. | Reduced-mask, split-polysilicon CMOS process, incorporating stacked-capacitor cells, for fabricating multi-megabit dynamic random access memories |
US5244826A (en) * | 1992-04-16 | 1993-09-14 | Micron Technology, Inc. | Method of forming an array of finned memory cell capacitors on a semiconductor substrate |
EP0575688B1 (en) * | 1992-06-26 | 1998-05-27 | STMicroelectronics S.r.l. | Programming of LDD-ROM cells |
US5374577A (en) * | 1992-12-21 | 1994-12-20 | Industrial Technology Research Institute | Polysilicon undercut process for stack DRAM |
US5563089A (en) * | 1994-07-20 | 1996-10-08 | Micron Technology, Inc. | Method of forming a bit line over capacitor array of memory cells and an array of bit line over capacitor array of memory cells |
US5605857A (en) * | 1993-02-12 | 1997-02-25 | Micron Technology, Inc. | Method of forming a bit line over capacitor array of memory cells and an array of bit line over capacitor array of memory cells |
US5395784A (en) * | 1993-04-14 | 1995-03-07 | Industrial Technology Research Institute | Method of manufacturing low leakage and long retention time DRAM |
US5369048A (en) * | 1993-08-26 | 1994-11-29 | United Microelectronics Corporation | Stack capacitor DRAM cell with buried bit-line and method of manufacture |
US5429976A (en) * | 1993-12-01 | 1995-07-04 | United Microelectronics Corporation | Self-aligned method for forming polysilicon word lines on top of gate electrodes to increase capacitance of a stacked capacitor in a DRAM cell |
US5501998A (en) * | 1994-04-26 | 1996-03-26 | Industrial Technology Research Institution | Method for fabricating dynamic random access memory cells having vertical sidewall stacked storage capacitors |
US5378654A (en) * | 1994-05-24 | 1995-01-03 | United Microelectronics Corporation | Self-aligned contact process |
US5668035A (en) * | 1996-06-10 | 1997-09-16 | Taiwan Semiconductor Manufacturing Company Ltd. | Method for fabricating a dual-gate dielectric module for memory with embedded logic technology |
KR100186503B1 (ko) * | 1996-06-10 | 1999-04-15 | 문정환 | 반도체 소자의 제조 방법 |
US6429473B1 (en) | 1996-07-30 | 2002-08-06 | International Business Machines Corporation | DRAM cell with stacked capacitor self-aligned to bitline |
US5766992A (en) * | 1997-04-11 | 1998-06-16 | Taiwan Semiconductor Manufacturing Company Ltd. | Process for integrating a MOSFET device, using silicon nitride spacers and a self-aligned contact structure, with a capacitor structure |
JPH10335656A (ja) * | 1997-06-03 | 1998-12-18 | Toshiba Corp | 半導体装置の製造方法 |
US5895264A (en) * | 1997-07-30 | 1999-04-20 | Chartered Semiconductor Manufacturing Ltd. | Method for forming stacked polysilicon |
US6074915A (en) * | 1998-08-17 | 2000-06-13 | Taiwan Semiconductor Manufacturing Company | Method of making embedded flash memory with salicide and sac structure |
JP3296324B2 (ja) * | 1999-04-07 | 2002-06-24 | 日本電気株式会社 | 半導体メモリ装置の製造方法 |
US6713378B2 (en) * | 2000-06-16 | 2004-03-30 | Micron Technology, Inc. | Interconnect line selectively isolated from an underlying contact plug |
US6511879B1 (en) * | 2000-06-16 | 2003-01-28 | Micron Technology, Inc. | Interconnect line selectively isolated from an underlying contact plug |
US20050026412A1 (en) * | 2000-06-16 | 2005-02-03 | Drynan John M. | Interconnect line selectively isolated from an underlying contact plug |
Family Cites Families (14)
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JPS5376A (en) * | 1976-06-23 | 1978-01-05 | Mitsubishi Electric Corp | Manufacture of semiconductor device |
JPS61183952A (ja) * | 1985-02-09 | 1986-08-16 | Fujitsu Ltd | 半導体記憶装置及びその製造方法 |
US4855801A (en) * | 1986-08-22 | 1989-08-08 | Siemens Aktiengesellschaft | Transistor varactor for dynamics semiconductor storage means |
JPS63190377A (ja) * | 1987-02-02 | 1988-08-05 | Matsushita Electronics Corp | 半導体記憶装置 |
JPH01124234A (ja) * | 1987-11-09 | 1989-05-17 | Mitsubishi Electric Corp | 分離酸化膜を有する半導体装置およびその製造方法 |
JPH0666437B2 (ja) * | 1987-11-17 | 1994-08-24 | 富士通株式会社 | 半導体記憶装置及びその製造方法 |
JPH0750696B2 (ja) * | 1987-12-14 | 1995-05-31 | 三菱電機株式会社 | 半導体装置の製造方法 |
JPH0284765A (ja) * | 1988-01-06 | 1990-03-26 | Oki Electric Ind Co Ltd | 半導体メモリ装置およびその製造方法 |
DE3916228C2 (de) * | 1988-05-18 | 1995-06-22 | Toshiba Kawasaki Kk | Halbleiterspeichervorrichtung mit Stapelkondensatorzellenstruktur und Verfahren zu ihrer Herstellung |
KR910010167B1 (ko) * | 1988-06-07 | 1991-12-17 | 삼성전자 주식회사 | 스택 캐패시터 dram셀 및 그의 제조방법 |
JPH025469A (ja) * | 1988-06-23 | 1990-01-10 | Fujitsu Ltd | 半導体記憶装置およびその製造方法 |
JPH026163A (ja) * | 1988-06-24 | 1990-01-10 | Canon Inc | 印刷装置 |
JP2680376B2 (ja) * | 1988-09-30 | 1997-11-19 | 株式会社東芝 | 半導体記憶装置およびその製造方法 |
KR920010204B1 (ko) * | 1989-12-02 | 1992-11-21 | 삼성전자 주식회사 | 초고집적 디램셀 및 그 제조방법 |
-
1990
- 1990-04-04 KR KR1019900004662A patent/KR930000581B1/ko not_active IP Right Cessation
-
1991
- 1991-04-03 US US07/679,956 patent/US5155056A/en not_active Expired - Lifetime
- 1991-04-04 DE DE4110906A patent/DE4110906C2/de not_active Expired - Fee Related
- 1991-04-04 GB GB9107068A patent/GB2242782B/en not_active Expired - Fee Related
- 1991-04-04 JP JP3071638A patent/JP2568316B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2242782B (en) | 1994-02-16 |
DE4110906A1 (de) | 1991-10-17 |
GB9107068D0 (en) | 1991-05-22 |
JPH06177345A (ja) | 1994-06-24 |
KR910019226A (ko) | 1991-11-30 |
JP2568316B2 (ja) | 1997-01-08 |
GB2242782A (en) | 1991-10-09 |
US5155056A (en) | 1992-10-13 |
DE4110906C2 (de) | 1998-07-02 |
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