KR900001225B1 - 반도체기억장치와 그 제조방법 - Google Patents
반도체기억장치와 그 제조방법 Download PDFInfo
- Publication number
- KR900001225B1 KR900001225B1 KR1019860001867A KR860001867A KR900001225B1 KR 900001225 B1 KR900001225 B1 KR 900001225B1 KR 1019860001867 A KR1019860001867 A KR 1019860001867A KR 860001867 A KR860001867 A KR 860001867A KR 900001225 B1 KR900001225 B1 KR 900001225B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- conductive layer
- semiconductor
- conductive
- cell
- 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
Links
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
- H10B12/01—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
- H10B12/0383—Making the capacitor or connections thereto the capacitor being in a trench in the substrate wherein the transistor is vertical
-
- 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
- H10B12/39—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor and the transistor being in a same trench
- H10B12/395—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor and the transistor being in a same trench the transistor being vertical
-
- 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
- H10D1/62—Capacitors having potential barriers
- H10D1/66—Conductor-insulator-semiconductor capacitors, e.g. MOS capacitors
- H10D1/665—Trench conductor-insulator-semiconductor capacitors, e.g. trench MOS capacitors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/63—Vertical IGFETs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/124—Shapes, relative sizes or dispositions of the regions of semiconductor bodies or of junctions between the regions
- H10D62/126—Top-view geometrical layouts of the regions or the junctions
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (11)
- 제1도전형으로 반도체기판(10)에다 측면영역과 상면영역을 갖는 도상층(14)을 한정하도록 저면을 갖는 그루브(12)가 형성된 반도체기억장치에 있어서, 상기 기판(10)위에 다수의 캐패시터(C)와 트랜지스터(Q)를 형성시켜 메모리셀을 구성시키되 1개의 도상층(14)을 둘러싸도록 그루브(12)속에 매설시킨 상기 캐패시터(C)는 상기 그루브(12)의 상측에다 절연층(24)을 매개하여 형성시킨 캐패시터전극층(22)을 상기 캐패시터전극층(22)에 대향되도록 상기 그루브(12)의 측면영역에 형성시킨 제2도전형의 제1반도체층(20)(86)(88)으로 구성하고, 상기 트랜지스터(Q)는 상기 그루브(12)속에 있는 캐패시터전극층(22)의 위쪽에다 절연되어지게 형성시킴과 더불어 상기 도상층(14)의 측면영역에 대향되도록 형성시킨 게이트전극층(28)(80)(82)으로 구성시켜 놓은 것을 특징으로 하는 반도체 기억장치.
- 제1항에 있어서, 상기 트랜지스터(Q)는 상기 도상층의 상면영역에다 드레인층으로서의 기능을 갖도록 형성시킨 제1도전형의 제2반도체층(32)과 채널영역으로서의 기능을 갖도록 형성시킨 제2도전형의 제3반도체층으로 구성시키는 한편, 상기 제1반도체층(20)(86)(88)과 상기 제1반도체층(32)은 도상층의 측면영역에서 서로 전기적으로 접촉되도록 형성시켜서 된 것을 특징으로 하는 반도체기억장치.
- 제2항에 있어서, 상기 제2반도체층(32)은 상기 도상층의 상면영역을 덮도록 형성시킨 것을 특징으로 하는 반도체기억장치.
- 제3항에 있어서, 상기 제1반도체층(20)과 상기 게이트전극층(28)은 상기 도상층의 측면둘레를 둘러싸도록 루우프형으로 형성시켜 각 도상층에 대해 1개의 셀트랜지스터와 1개의 셀캐패시터로 구성시킨 것을 특징으로 하는 반도체기억장치.
- 제3항에 있어서, 상기 제1반도체층을 상기 도상층의 주위에다 서로 전기적으로 분리되도록 2개의 반고리형의 반도체층(86)(88)으로 분할시키므로써 각 도상층에 대해 2개의 셀캐패시터를 형성시키도록 된 것을 특징으로 하는 반도체기억장치.
- 제5항에 있어서, 상기 게이트전극층은 상기 도상층주위의 외측에 서로 전기적으로 절연되도록 2개의 반고리형의 전극층(80)(82)으로 분할시키므로써 각 도상층에 대해 2개의 셀트랜지스터를 형성시키도록 된 것을 특징으로 하는 반도체기억장치.
- 제1도전형으로 된 반도체기판(10)위에다 저면을 갖는 그루브(12)에 의해 한정되어짐과 더불어 측면영역과 상면영역을 갖는 복수의 도상층을 형성시키도록 된 반도체기억장치의 제조방법에 있어서, 상기 그루브(12)에는 그의 저면위에다 절연되게끔 캐패시터전극층(22)을 형성시킴과 더불어 상기 그루브(12)의 측면영역에는 캐패시터전극층(22)에 대향되도록 제2도전형의 반도체캐패시터층(20)(86)(88)을 형성시켜 캐패시터(C)를 형성시키고, 또한 상기 그루브(12)속에는 상기 캐패시터전극층(22)과는 그 위쪽에서 절연되어짐과 더불어 상기 도상층(14)의 측면영역에 대향되도록 게이트전극층(28)(80)(82)을 형성시켜 트랜지스터(Q)을 형성시키는 과정을 포함하도록 된 것을
- 제7항에 있어서, 상기 캐패시터(C)는 상기 도상층의 표면에 제2도전형의 불순물을 도입시켜 상기 반도체 캐패시터층(20)(86)(88)에 대향되면서 상기 도상층의 표면에서 적어도 그의 측면영역을 덮도록 되는 제2도전형의 제1반도체층(56)을 형성시키고, 상기 도상층을 둘러싸는 상기 그루브(12)속에다 상기 도상층의 측면중 상반부는 노출시킴과 더불어 하반부는 둘러싸면서 상기 캐패시터전극층(22)에 대향되어지도록 제1도전층(66)을 형성시켜서 되어지는 것을 특징으로 하는 반도체기억장치의 제조방법.
- 제8항에 있어서, 상기 트랜지스터(Q)는 상기 도상층의 노출된 상반부에다 제1도전형의 불순물을 도입시키므로써 상기 도상층의 노출표면에 상기 트랜지스터(Q)의 채널영역으로 동작하는 제1도전형의 제2반도체층(62)을 형성시키고, 상기 그루브(12)속에 상기 도상층가운데 노출되어진 상반부의 측면영역만을 둘러싸도록 제2도전층(66')을 형성시켜 상기 도상층 상면영역을 노출시키며, 상기 도상층가운데 노출되어진 상면영역에 제2도전형의 불순물을 도입시켜 상기 트랜지스터(Q)의 드레인층으로 동작되는 제3반도체층(70)을 형성시켜서 되는 것을 특징으로 하는 반도체기억장치의 제조방법.
- 제7항에 있어서, 상기 캐패시터는 상기 도상층의 표면에 제2도전형의 불순물을 주입시켜 상기 도상층의 표면에서 적어도 그의 측면영역을 덮도록 되는 제2전형의 제1반도체층을 형성시키고, 상기 제1반도체층은 상기 도상층의 주위에서 전기적으로 분리1 2
- 제10항에 있어서, 상기 트랜지스터는 상기 도상층의 노출된 상반부에다 제1도전형의 불순물을 도입시키므로써 상기 도상층의 노출표면에 제1도전형의 제2반도체층(90)을 형성시키고, 상기 그루브(12)속에다 상기 도상층가운데 노출되어진 상반부의 측면영역을 둘러싸도록 제2전층을 형성시켜 상기 도상층의 상면영역을 노출시킴과 더불어, 상기 제2도전층은 2개의 인접 셀트랜지스터(Q1)(Q2)의 2개의 게이트전극층으로 동작되어지도록 절연층(84)을 매개하여 상기 도상층 주위의 외측에서 2개의 반고리형으로된 반도체층(80)(82)으로 분리시키며, 상기 도상층가운데 노출되어진 상면영역에 제2도 전형의 불순물을 도입시켜 2개의 인접 셀트랜지스터(Q1)(Q2)의 공통드레인층을 동작하는 제3반도체층(70)을 형성시켜서 되는 과정을 포함하도록 된 것을 특징으로 하는 반도체기억장치의 제조방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP80619 | 1985-04-16 | ||
JP60-80619 | 1985-04-16 | ||
JP60080619A JPH0682800B2 (ja) | 1985-04-16 | 1985-04-16 | 半導体記憶装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR860008609A KR860008609A (ko) | 1986-11-17 |
KR900001225B1 true KR900001225B1 (ko) | 1990-03-05 |
Family
ID=13723358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019860001867A Expired KR900001225B1 (ko) | 1985-04-16 | 1986-03-14 | 반도체기억장치와 그 제조방법 |
Country Status (5)
Country | Link |
---|---|
US (3) | US5001078A (ko) |
EP (1) | EP0198590B1 (ko) |
JP (1) | JPH0682800B2 (ko) |
KR (1) | KR900001225B1 (ko) |
DE (1) | DE3685361D1 (ko) |
Families Citing this family (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE33261E (en) * | 1984-07-03 | 1990-07-10 | Texas Instruments, Incorporated | Trench capacitor for high density dynamic RAM |
US5208657A (en) * | 1984-08-31 | 1993-05-04 | Texas Instruments Incorporated | DRAM Cell with trench capacitor and vertical channel in substrate |
US5225697A (en) * | 1984-09-27 | 1993-07-06 | Texas Instruments, Incorporated | dRAM cell and method |
US5102817A (en) * | 1985-03-21 | 1992-04-07 | Texas Instruments Incorporated | Vertical DRAM cell and method |
JPH0680805B2 (ja) * | 1985-05-29 | 1994-10-12 | 日本電気株式会社 | Mis型半導体記憶装置 |
US5164917A (en) * | 1985-06-26 | 1992-11-17 | Texas Instruments Incorporated | Vertical one-transistor DRAM with enhanced capacitance and process for fabricating |
US4769786A (en) * | 1986-07-15 | 1988-09-06 | International Business Machines Corporation | Two square memory cells |
JPS6351667A (ja) * | 1986-08-21 | 1988-03-04 | Matsushita Electronics Corp | 半導体記憶装置 |
US4959698A (en) * | 1986-10-08 | 1990-09-25 | Mitsubishi Denki Kabushiki Kaisha | Memory cell of a semiconductor memory device |
US4785337A (en) * | 1986-10-17 | 1988-11-15 | International Business Machines Corporation | Dynamic ram cell having shared trench storage capacitor with sidewall-defined bridge contacts and gate electrodes |
JPS63115367A (ja) * | 1986-11-04 | 1988-05-19 | Matsushita Electronics Corp | 半導体装置の製造方法 |
JPS63211750A (ja) * | 1987-02-27 | 1988-09-02 | Mitsubishi Electric Corp | 半導体記憶装置 |
US4830978A (en) * | 1987-03-16 | 1989-05-16 | Texas Instruments Incorporated | Dram cell and method |
US4916524A (en) * | 1987-03-16 | 1990-04-10 | Texas Instruments Incorporated | Dram cell and method |
JPH0795568B2 (ja) * | 1987-04-27 | 1995-10-11 | 日本電気株式会社 | 半導体記憶装置 |
US5200353A (en) * | 1987-06-29 | 1993-04-06 | Mitsubishi Denki Kabushiki Kaisha | Method of manufacturing a semiconductor device having trench capacitor |
US5109259A (en) * | 1987-09-22 | 1992-04-28 | Texas Instruments Incorporated | Multiple DRAM cells in a trench |
JP2506830B2 (ja) * | 1987-10-21 | 1996-06-12 | 松下電器産業株式会社 | 半導体装置の製造方法 |
JPH01125858A (ja) * | 1987-11-10 | 1989-05-18 | Fujitsu Ltd | 半導体装置およびその製造方法 |
US5183774A (en) * | 1987-11-17 | 1993-02-02 | Mitsubishi Denki Kabushiki Kaisha | Method of making a semiconductor memory device |
JPH01143254A (ja) * | 1987-11-28 | 1989-06-05 | Mitsubishi Electric Corp | 半導体記憶装置 |
JP2606857B2 (ja) * | 1987-12-10 | 1997-05-07 | 株式会社日立製作所 | 半導体記憶装置の製造方法 |
JPH01227468A (ja) * | 1988-03-08 | 1989-09-11 | Oki Electric Ind Co Ltd | 半導体記憶装置 |
EP0333426B1 (en) * | 1988-03-15 | 1996-07-10 | Kabushiki Kaisha Toshiba | Dynamic RAM |
JPH07105477B2 (ja) * | 1988-05-28 | 1995-11-13 | 富士通株式会社 | 半導体装置及びその製造方法 |
US5103276A (en) * | 1988-06-01 | 1992-04-07 | Texas Instruments Incorporated | High performance composed pillar dram cell |
US5106776A (en) * | 1988-06-01 | 1992-04-21 | Texas Instruments Incorporated | Method of making high performance composed pillar dRAM cell |
US4926224A (en) * | 1988-06-03 | 1990-05-15 | Texas Instruments Incorporated | Crosspoint dynamic ram cell for folded bitline array |
US5225363A (en) * | 1988-06-28 | 1993-07-06 | Texas Instruments Incorporated | Trench capacitor DRAM cell and method of manufacture |
US5105245A (en) * | 1988-06-28 | 1992-04-14 | Texas Instruments Incorporated | Trench capacitor DRAM cell with diffused bit lines adjacent to a trench |
US4977436A (en) * | 1988-07-25 | 1990-12-11 | Motorola, Inc. | High density DRAM |
US4927779A (en) * | 1988-08-10 | 1990-05-22 | International Business Machines Corporation | Complementary metal-oxide-semiconductor transistor and one-capacitor dynamic-random-access memory cell and fabrication process therefor |
US4920065A (en) * | 1988-10-31 | 1990-04-24 | International Business Machines Corporation | Method of making ultra dense dram cells |
US4894697A (en) * | 1988-10-31 | 1990-01-16 | International Business Machines Corporation | Ultra dense dram cell and its method of fabrication |
US4945069A (en) * | 1988-12-16 | 1990-07-31 | Texas Instruments, Incorporated | Organic space holder for trench processing |
US5084418A (en) * | 1988-12-27 | 1992-01-28 | Texas Instruments Incorporated | Method of making an array device with buried interconnects |
FR2658952A1 (fr) * | 1990-02-27 | 1991-08-30 | Thomson Csf | Procede de realisation de memoires haute densite. |
JPH03278573A (ja) * | 1990-03-28 | 1991-12-10 | Mitsubishi Electric Corp | 半導体記憶装置 |
US5034787A (en) * | 1990-06-28 | 1991-07-23 | International Business Machines Corporation | Structure and fabrication method for a double trench memory cell device |
US5156992A (en) * | 1991-06-25 | 1992-10-20 | Texas Instruments Incorporated | Process for forming poly-sheet pillar transistor DRAM cell |
KR940000513B1 (ko) * | 1991-08-21 | 1994-01-21 | 현대전자산업 주식회사 | Dram셀 및 그 제조방법 |
US5158901A (en) * | 1991-09-30 | 1992-10-27 | Motorola, Inc. | Field effect transistor having control and current electrodes positioned at a planar elevated surface and method of formation |
US5214301A (en) * | 1991-09-30 | 1993-05-25 | Motorola, Inc. | Field effect transistor having control and current electrodes positioned at a planar elevated surface |
US5286667A (en) * | 1992-08-11 | 1994-02-15 | Taiwan Semiconductor Manufacturing Company | Modified and robust self-aligning contact process |
EP0606758B1 (en) * | 1992-12-30 | 2000-09-06 | Samsung Electronics Co., Ltd. | Method of producing an SOI transistor DRAM |
KR0125113B1 (ko) * | 1993-02-02 | 1997-12-11 | 모리시타 요이찌 | 불휘발성 반도체 메모리 집적장치 및 그 제조방법 |
JPH07130871A (ja) * | 1993-06-28 | 1995-05-19 | Toshiba Corp | 半導体記憶装置 |
US5529944A (en) * | 1995-02-02 | 1996-06-25 | International Business Machines Corporation | Method of making cross point four square folded bitline trench DRAM cell |
KR0165370B1 (ko) * | 1995-12-22 | 1999-02-01 | 김광호 | 차아지 업에 의한 반도체장치의 손상을 방지하는 방법 |
US6114082A (en) * | 1996-09-16 | 2000-09-05 | International Business Machines Corporation | Frequency doubling hybrid photoresist having negative and positive tone components and method of preparing the same |
US6034389A (en) * | 1997-01-22 | 2000-03-07 | International Business Machines Corporation | Self-aligned diffused source vertical transistors with deep trench capacitors in a 4F-square memory cell array |
DE19732871C2 (de) * | 1997-07-30 | 1999-05-27 | Siemens Ag | Festwert-Speicherzellenanordnung, Ätzmaske für deren Programmierung und Verfahren zu deren Herstellung |
US6066869A (en) | 1997-10-06 | 2000-05-23 | Micron Technology, Inc. | Circuit and method for a folded bit line memory cell with vertical transistor and trench capacitor |
US6528837B2 (en) | 1997-10-06 | 2003-03-04 | Micron Technology, Inc. | Circuit and method for an open bit line memory cell with a vertical transistor and trench plate trench capacitor |
DE19800340A1 (de) * | 1998-01-07 | 1999-07-15 | Siemens Ag | Halbleiterspeicheranordnung und Verfahren zu deren Herstellung |
US6025225A (en) | 1998-01-22 | 2000-02-15 | Micron Technology, Inc. | Circuits with a trench capacitor having micro-roughened semiconductor surfaces and methods for forming the same |
US6246083B1 (en) | 1998-02-24 | 2001-06-12 | Micron Technology, Inc. | Vertical gain cell and array for a dynamic random access memory |
US6242775B1 (en) | 1998-02-24 | 2001-06-05 | Micron Technology, Inc. | Circuits and methods using vertical complementary transistors |
US6124729A (en) | 1998-02-27 | 2000-09-26 | Micron Technology, Inc. | Field programmable logic arrays with vertical transistors |
US6137128A (en) * | 1998-06-09 | 2000-10-24 | International Business Machines Corporation | Self-isolated and self-aligned 4F-square vertical fet-trench dram cells |
US6312988B1 (en) | 1999-09-02 | 2001-11-06 | Micron Technology, Inc. | Methods of forming capacitors, methods of forming capacitor-over-bit line memory circuitry, and related integrated circuitry constructions |
GB0005650D0 (en) * | 2000-03-10 | 2000-05-03 | Koninkl Philips Electronics Nv | Field-effect semiconductor devices |
EP2463912B1 (en) * | 2001-01-19 | 2015-07-08 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device |
JP3617971B2 (ja) * | 2001-12-11 | 2005-02-09 | 株式会社東芝 | 半導体記憶装置 |
US7473596B2 (en) * | 2003-12-19 | 2009-01-06 | Micron Technology, Inc. | Methods of forming memory cells |
KR20130134813A (ko) * | 2012-05-31 | 2013-12-10 | 에스케이하이닉스 주식회사 | 자기정렬된 게이트전극을 구비한 수직채널트랜지스터 및 그 제조 방법 |
US11037940B2 (en) * | 2018-03-22 | 2021-06-15 | Micron Technology, Inc. | Integrated circuit constructions comprising memory and methods used in the formation of integrated circuitry comprising memory |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3387286A (en) * | 1967-07-14 | 1968-06-04 | Ibm | Field-effect transistor memory |
DE2619713C2 (de) * | 1976-05-04 | 1984-12-20 | Siemens AG, 1000 Berlin und 8000 München | Halbleiterspeicher |
JPS6037619B2 (ja) * | 1976-11-17 | 1985-08-27 | 株式会社東芝 | 半導体メモリ装置 |
US4262298A (en) * | 1979-09-04 | 1981-04-14 | Burroughs Corporation | Ram having a stabilized substrate bias and low-threshold narrow-width transfer gates |
US4407058A (en) * | 1981-05-22 | 1983-10-04 | International Business Machines Corporation | Method of making dense vertical FET's |
JPS59117258A (ja) * | 1982-12-24 | 1984-07-06 | Hitachi Ltd | 半導体装置の製造方法 |
JPS5972161A (ja) * | 1983-09-09 | 1984-04-24 | Hitachi Ltd | 半導体記憶装置 |
KR920010461B1 (ko) * | 1983-09-28 | 1992-11-28 | 가부시끼가이샤 히다찌세이사꾸쇼 | 반도체 메모리와 그 제조 방법 |
US4672410A (en) * | 1984-07-12 | 1987-06-09 | Nippon Telegraph & Telephone | Semiconductor memory device with trench surrounding each memory cell |
JPH0793365B2 (ja) * | 1984-09-11 | 1995-10-09 | 株式会社東芝 | 半導体記憶装置およびその製造方法 |
EP0180026B1 (en) * | 1984-10-31 | 1992-01-08 | Texas Instruments Incorporated | Dram cell and method |
US4713678A (en) * | 1984-12-07 | 1987-12-15 | Texas Instruments Incorporated | dRAM cell and method |
JPH0831933B2 (ja) * | 1985-01-31 | 1996-03-27 | キヤノン株式会社 | 画像送信装置 |
US4673962A (en) * | 1985-03-21 | 1987-06-16 | Texas Instruments Incorporated | Vertical DRAM cell and method |
US4737829A (en) * | 1985-03-28 | 1988-04-12 | Nec Corporation | Dynamic random access memory device having a plurality of one-transistor type memory cells |
US4679300A (en) * | 1985-10-07 | 1987-07-14 | Thomson Components-Mostek Corp. | Method of making a trench capacitor and dram memory cell |
US4769786A (en) * | 1986-07-15 | 1988-09-06 | International Business Machines Corporation | Two square memory cells |
-
1985
- 1985-04-16 JP JP60080619A patent/JPH0682800B2/ja not_active Expired - Lifetime
-
1986
- 1986-03-11 EP EP86301758A patent/EP0198590B1/en not_active Expired - Lifetime
- 1986-03-11 DE DE8686301758T patent/DE3685361D1/de not_active Expired - Lifetime
- 1986-03-14 KR KR1019860001867A patent/KR900001225B1/ko not_active Expired
-
1989
- 1989-08-04 US US07/389,417 patent/US5001078A/en not_active Expired - Lifetime
- 1989-08-07 US US07/390,510 patent/US4990980A/en not_active Expired - Lifetime
-
1995
- 1995-06-05 US US08/464,385 patent/US5504028A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR860008609A (ko) | 1986-11-17 |
EP0198590B1 (en) | 1992-05-20 |
US5001078A (en) | 1991-03-19 |
US4990980A (en) | 1991-02-05 |
DE3685361D1 (de) | 1992-06-25 |
EP0198590A3 (en) | 1987-04-01 |
US5504028A (en) | 1996-04-02 |
EP0198590A2 (en) | 1986-10-22 |
JPS61239658A (ja) | 1986-10-24 |
JPH0682800B2 (ja) | 1994-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR900001225B1 (ko) | 반도체기억장치와 그 제조방법 | |
KR900000207B1 (ko) | 반도체 기억장치와 그 제조방법 | |
EP0085988B1 (en) | Semiconductor memory and method for fabricating the same | |
KR930002292B1 (ko) | 반도체 장치 및 그 제조방법 | |
US4951175A (en) | Semiconductor memory device with stacked capacitor structure and the manufacturing method thereof | |
KR100417480B1 (ko) | 디램(dram)셀및그제조방법 | |
KR100232393B1 (ko) | 반도체 기억장치 및 그의 제조방법 | |
US5798544A (en) | Semiconductor memory device having trench isolation regions and bit lines formed thereover | |
KR910009786B1 (ko) | 반도체 메모리장치 및 제법 | |
KR900000170B1 (ko) | 다이내믹형 메모리셀과 그 제조방법 | |
KR900008649B1 (ko) | 반도체 메모리장치 및 그의 제조방법 | |
US5398205A (en) | Semiconductor memory device having trench in which word line is buried | |
US6479852B1 (en) | Memory cell having a deep trench capacitor and a vertical channel | |
US5156992A (en) | Process for forming poly-sheet pillar transistor DRAM cell | |
KR930007194B1 (ko) | 반도체 장치 및 그 제조방법 | |
US5198383A (en) | Method of fabricating a composed pillar transistor DRAM Cell | |
KR20010051702A (ko) | Dram-셀 장치 및 그의 제조 방법 | |
JPH0640573B2 (ja) | 半導体集積回路装置 | |
KR100435076B1 (ko) | 트렌치 캐패시터를 갖는 디램 셀의 제조 방법 | |
US5343354A (en) | Stacked trench capacitor and a method for making the same | |
JPH03268462A (ja) | メモリセルを作成する方法 | |
US5248891A (en) | High integration semiconductor device | |
EP0266572B1 (en) | Semiconductor memory device having a plurality of memory cells of single transistor type | |
JP2521928B2 (ja) | 半導体記憶装置 | |
KR100343002B1 (ko) | 버티컬 트랜지스터와 딥 트렌치 커패시터를 가지는 메모리셀 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
St.27 status event code: A-0-1-A10-A12-nap-PA0109 |
|
PA0201 | Request for examination |
St.27 status event code: A-1-2-D10-D11-exm-PA0201 |
|
R17-X000 | Change to representative recorded |
St.27 status event code: A-3-3-R10-R17-oth-X000 |
|
PG1501 | Laying open of application |
St.27 status event code: A-1-1-Q10-Q12-nap-PG1501 |
|
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
St.27 status event code: A-2-2-Q10-Q13-nap-PG1605 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
St.27 status event code: A-1-2-D10-D22-exm-PE0701 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
St.27 status event code: A-2-4-F10-F11-exm-PR0701 |
|
PR1002 | Payment of registration fee |
St.27 status event code: A-2-2-U10-U11-oth-PR1002 Fee payment year number: 1 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 4 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 5 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 6 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 7 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 8 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 9 |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 10 |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 11 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 12 |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 13 |
|
FPAY | Annual fee payment |
Payment date: 20030228 Year of fee payment: 14 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 14 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |
St.27 status event code: A-4-4-U10-U13-oth-PC1903 Not in force date: 20040306 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE |
|
PC1903 | Unpaid annual fee |
St.27 status event code: N-4-6-H10-H13-oth-PC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 20040306 |
|
P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |
|
P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |
|
P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |