DE69120020D1 - Ein Festwertspeicher - Google Patents
Ein FestwertspeicherInfo
- Publication number
- DE69120020D1 DE69120020D1 DE69120020T DE69120020T DE69120020D1 DE 69120020 D1 DE69120020 D1 DE 69120020D1 DE 69120020 T DE69120020 T DE 69120020T DE 69120020 T DE69120020 T DE 69120020T DE 69120020 D1 DE69120020 D1 DE 69120020D1
- Authority
- DE
- Germany
- Prior art keywords
- read
- memory
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/08—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements
- G11C17/10—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM
- G11C17/12—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM using field-effect devices
- G11C17/126—Virtual ground arrays
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2285594A JP2624569B2 (ja) | 1990-10-22 | 1990-10-22 | 読出し専用メモリ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69120020D1 true DE69120020D1 (de) | 1996-07-11 |
DE69120020T2 DE69120020T2 (de) | 1996-11-28 |
Family
ID=17693574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69120020T Expired - Lifetime DE69120020T2 (de) | 1990-10-22 | 1991-10-22 | Ein Festwertspeicher |
Country Status (5)
Country | Link |
---|---|
US (1) | US5280442A (de) |
EP (1) | EP0482880B1 (de) |
JP (1) | JP2624569B2 (de) |
KR (1) | KR950011966B1 (de) |
DE (1) | DE69120020T2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2981346B2 (ja) * | 1992-08-31 | 1999-11-22 | シャープ株式会社 | 読み出し専用半導体記憶装置 |
WO1994018703A1 (en) * | 1993-02-01 | 1994-08-18 | National Semiconductor Corporation | Ultra-high-density alternate metal virtual ground rom |
JPH07147095A (ja) * | 1993-03-31 | 1995-06-06 | Sony Corp | 半導体不揮発性記憶装置およびデコーダ回路 |
TW241394B (en) * | 1994-05-26 | 1995-02-21 | Aplus Integrated Circuits Inc | Flat-cell ROM and decoder |
KR0161403B1 (ko) * | 1995-03-31 | 1998-12-01 | 김광호 | 반도체 메모리장치 및 그 제조방법 |
JP3230795B2 (ja) * | 1995-09-29 | 2001-11-19 | シャープ株式会社 | 読み出し専用半導体記憶装置 |
JPH09162305A (ja) * | 1995-12-08 | 1997-06-20 | Mitsubishi Electric Corp | 半導体記憶装置 |
KR0172378B1 (ko) * | 1995-12-30 | 1999-03-30 | 김광호 | 불휘발성 반도체 메모리소자 |
JP3380107B2 (ja) * | 1996-03-22 | 2003-02-24 | シャープ株式会社 | 半導体記憶装置 |
CN1159576C (zh) * | 1999-05-10 | 2004-07-28 | 三星电子株式会社 | 制造磁共振成像系统用的主磁体总成的方法 |
US6604107B1 (en) | 2000-04-24 | 2003-08-05 | Ebay Inc. | Generic attribute database system for storing items of different categories having shared attributes |
US8050075B2 (en) * | 2007-11-07 | 2011-11-01 | Semiconductor Components Industries, Llc | Memory |
US11545499B2 (en) | 2020-10-06 | 2023-01-03 | International Business Machines Corporation | Read-only memory with vertical transistors |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57198592A (en) * | 1981-05-29 | 1982-12-06 | Hitachi Ltd | Semiconductor memory device |
JPH01184787A (ja) * | 1988-01-19 | 1989-07-24 | Toshiba Corp | 半導体メモリ |
US5111428A (en) * | 1990-07-10 | 1992-05-05 | Silicon Integrated Systems Corp. | High density NOR type read only memory data cell and reference cell network |
-
1990
- 1990-10-22 JP JP2285594A patent/JP2624569B2/ja not_active Expired - Lifetime
-
1991
- 1991-10-22 US US07/781,630 patent/US5280442A/en not_active Expired - Lifetime
- 1991-10-22 EP EP91309738A patent/EP0482880B1/de not_active Expired - Lifetime
- 1991-10-22 DE DE69120020T patent/DE69120020T2/de not_active Expired - Lifetime
- 1991-10-22 KR KR1019910018586A patent/KR950011966B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR950011966B1 (ko) | 1995-10-12 |
EP0482880A2 (de) | 1992-04-29 |
EP0482880A3 (en) | 1992-08-05 |
DE69120020T2 (de) | 1996-11-28 |
KR920008772A (ko) | 1992-05-28 |
JPH04158572A (ja) | 1992-06-01 |
JP2624569B2 (ja) | 1997-06-25 |
US5280442A (en) | 1994-01-18 |
EP0482880B1 (de) | 1996-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8328 | Change in the person/name/address of the agent |
Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN |
|
8364 | No opposition during term of opposition |