KR960011187B1 - 불휘발성 반도체메모리 - Google Patents
불휘발성 반도체메모리 Download PDFInfo
- Publication number
- KR960011187B1 KR960011187B1 KR1019910008779A KR910008779A KR960011187B1 KR 960011187 B1 KR960011187 B1 KR 960011187B1 KR 1019910008779 A KR1019910008779 A KR 1019910008779A KR 910008779 A KR910008779 A KR 910008779A KR 960011187 B1 KR960011187 B1 KR 960011187B1
- Authority
- KR
- South Korea
- Prior art keywords
- gate
- transistor
- control gate
- thin film
- floating gate
- 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
Links
Classifications
-
- 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]
- H10D30/68—Floating-gate IGFETs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0408—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors
- G11C16/0416—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors comprising cells containing a single floating gate transistor and no select transistor, e.g. UV EPROM
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/0411—Manufacture or treatment of FETs having insulated gates [IGFET] of FETs having floating gates
-
- 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]
- H10D30/68—Floating-gate IGFETs
- H10D30/681—Floating-gate IGFETs having only two programming levels
- H10D30/684—Floating-gate IGFETs having only two programming levels programmed by hot carrier injection
- H10D30/685—Floating-gate IGFETs having only two programming levels programmed by hot carrier injection from the channel
-
- 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]
- H10D30/68—Floating-gate IGFETs
- H10D30/6891—Floating-gate IGFETs characterised by the shapes, relative sizes or dispositions of the floating gate electrode
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0128—Manufacturing their channels
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (7)
- 반도체기판과, 이 반도체기판상에 형성되면서 소오스 및 드레인영역으로 기능하는 확산층 ; 상기 반도체기판으로부터 절연되도록 상기 반도체기판상에 형성된 부유게이트 ; 박막으로 이루어짐과 더불어 상기 부유게이트로부터 절연되도록 상기 부유게이트상에 형성된 제어게이트 및 ; 상기 제어게이트 및 상기 부유게이트를 포함하고, 상기 부유게이트에 대응하는 상기 제어게이트의 부분이 제어게이트의 다른 부분 보다 낮은 불순물 농도를 갖추며, 상기 부유게이트가 상기 채널영역을 제어하는 게이트전극인 트랜지스터(12)를 구비하여 구성된 것을 특징으로 하는 불휘발성 반도체메모리.
- 제1항에 있어서, 상기 트랜지스터의 전도도는 전자가 상기 부유게이트에 주입되는 기입상태와 상기 전자가 방전되는 소거상태에 따라 다른 것을 특징으로 하는 불휘발성 반도체메모리.
- 제2항에 있어서, 상기 절연게이트 트랜지스터의 상기 드레인이 상기 비트선에 연결되고, 상기 소오스가 전원에 연결되며, 상기 제어게이트가 상기 워드선에 연결되는 것을 특징으로 하는 불휘발성 반도체메모리.
- 제1항에 있어서, 상기 박막이 폴리실리콘으로 이루어진 것을 특징으로 하는 불휘발성 반도체메모리.
- 제1항에 있어서, 상기 박막이 비정질실리콘으로 이루어진 것을 특징으로 하는 불휘발성 반도체메모리.
- 제1항에 있어서, 상기 박막이 단결정실리콘으로 이루어진 것을 특징으로 하는 불휘발성 반도체메모리.
- 부유게이트와 제어게이트를 갖춘 메모리셀로서 기능하고, 전류통로의 일단이 비트선에 연결됨과 더불어 타단이 전원에 연결되고, 상기 제어게이트가 워드선에 연결된 절연게이트 트랜지스터(11)와 ; 상기 제어 게이트와 상기 부유게이트를 포함하고, 상기 제어게이트가 박막으로 이루어지고, 상기 부유게이트에 대응하는 부분이 상기 제어게이트의 다른 부분 보다 더 낮은 불순물 농도를 갖춘 채널영역이고, 상기 부유게이트가 상기 채널영역을 제어하는 게이트전극이고, 전자가 상기 부유게이트에 주입된 상기 메모리셀의 상기 트랜지스터의 임계치전압이 증가하여 상기 트랜지스터가 오프상태로 설정되고, 전자가 상기 부유게이트로부터 방출된 상기 메모리셀의 상기 트랜지스터의 상기 임게치전압이 감소하여 상기 박막트랜지스터가 온상태로 설정되고, 상기 제어게이트의 전압이 독출동작에서 증가하면, 상기 제어게이트의 고전압이 온상태 트랜지스터의 채널영역에 인가되어 상기 절연게이트 트랜지스터가 턴온되는 트랜지스터(12)를 구비하여 구성된 것을 특징으로 하는 불휘발성 반도체메모리.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP02-138529 | 1990-05-30 | ||
JP2138529A JPH07120726B2 (ja) | 1990-05-30 | 1990-05-30 | 不揮発性半導体メモリ |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910020897A KR910020897A (ko) | 1991-12-20 |
KR960011187B1 true KR960011187B1 (ko) | 1996-08-21 |
Family
ID=15224287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910008779A Expired - Fee Related KR960011187B1 (ko) | 1990-05-30 | 1991-05-29 | 불휘발성 반도체메모리 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5315546A (ko) |
JP (1) | JPH07120726B2 (ko) |
KR (1) | KR960011187B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5452250A (en) * | 1994-06-14 | 1995-09-19 | International Business Machines, Inc. | Non-volatile register system utilizing thin-film floating-gate amorphous transistors |
KR100311486B1 (ko) * | 1995-11-23 | 2002-08-17 | 현대반도체 주식회사 | 반도체메모리장치및그의제조방법 |
JPH11143379A (ja) * | 1997-09-03 | 1999-05-28 | Semiconductor Energy Lab Co Ltd | 半導体表示装置補正システムおよび半導体表示装置の補正方法 |
US6022770A (en) * | 1998-03-24 | 2000-02-08 | International Business Machines Corporation | NVRAM utilizing high voltage TFT device and method for making the same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4016588A (en) * | 1974-12-27 | 1977-04-05 | Nippon Electric Company, Ltd. | Non-volatile semiconductor memory device |
JPS57157573A (en) * | 1981-03-25 | 1982-09-29 | Fujitsu Ltd | Semiconductor non-volatile memory cell |
DE3141390A1 (de) * | 1981-10-19 | 1983-04-28 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Floating-gate-speicherzelle, bei der das schreiben und loeschen durch injektion heisser ladungstraeger erfolgt |
JPS61123169A (ja) * | 1984-11-20 | 1986-06-11 | Fujitsu Ltd | 半導体集積回路 |
JPS62265768A (ja) * | 1986-05-13 | 1987-11-18 | Mitsubishi Electric Corp | 不揮発性半導体記憶装置 |
JP2607504B2 (ja) * | 1987-02-20 | 1997-05-07 | 株式会社東芝 | 不揮発性半導体メモリ |
JP2807256B2 (ja) * | 1989-03-17 | 1998-10-08 | 株式会社東芝 | 不揮発性半導体メモリ |
US5063423A (en) * | 1989-04-28 | 1991-11-05 | Nippondenso Co., Ltd. | Semiconductor memory device of a floating gate tunnel oxide type |
-
1990
- 1990-05-30 JP JP2138529A patent/JPH07120726B2/ja not_active Expired - Fee Related
-
1991
- 1991-05-29 US US07/707,064 patent/US5315546A/en not_active Expired - Lifetime
- 1991-05-29 KR KR1019910008779A patent/KR960011187B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH07120726B2 (ja) | 1995-12-20 |
US5315546A (en) | 1994-05-24 |
JPH0433376A (ja) | 1992-02-04 |
KR910020897A (ko) | 1991-12-20 |
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