JPS5313323A - Semiconductor memory unit and its production - Google Patents
Semiconductor memory unit and its productionInfo
- Publication number
- JPS5313323A JPS5313323A JP8749276A JP8749276A JPS5313323A JP S5313323 A JPS5313323 A JP S5313323A JP 8749276 A JP8749276 A JP 8749276A JP 8749276 A JP8749276 A JP 8749276A JP S5313323 A JPS5313323 A JP S5313323A
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor memory
- production
- memory unit
- connection
- swtiching
- 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.)
- Granted
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
Landscapes
- Read Only Memory (AREA)
Abstract
PURPOSE:A connection swtiching terminal block is provided and the selection of kinds is executed simply only by connection of selected terminals, thereby producing a semiconductor memory and making it reliable.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8749276A JPS5313323A (en) | 1976-07-22 | 1976-07-22 | Semiconductor memory unit and its production |
US05/818,015 US4144587A (en) | 1976-07-22 | 1977-07-22 | Counting level "1" bits to minimize ROM active elements |
GB30939/77A GB1579386A (en) | 1976-07-22 | 1977-07-22 | Semiconductor memory device and method of manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8749276A JPS5313323A (en) | 1976-07-22 | 1976-07-22 | Semiconductor memory unit and its production |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5313323A true JPS5313323A (en) | 1978-02-06 |
JPS5752674B2 JPS5752674B2 (en) | 1982-11-09 |
Family
ID=13916444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8749276A Granted JPS5313323A (en) | 1976-07-22 | 1976-07-22 | Semiconductor memory unit and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5313323A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58183836A (en) * | 1982-04-19 | 1983-10-27 | Daihatsu Motor Co Ltd | Compression-ratio variable type internal-combustion engine |
US4671917A (en) * | 1985-07-30 | 1987-06-09 | Japan Abrasive Co., Ltd. | Method and apparatus for cooling molten oxides |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50126339A (en) * | 1974-03-25 | 1975-10-04 |
-
1976
- 1976-07-22 JP JP8749276A patent/JPS5313323A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50126339A (en) * | 1974-03-25 | 1975-10-04 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58183836A (en) * | 1982-04-19 | 1983-10-27 | Daihatsu Motor Co Ltd | Compression-ratio variable type internal-combustion engine |
JPH0116974B2 (en) * | 1982-04-19 | 1989-03-28 | Daihatsu Motor Co Ltd | |
US4671917A (en) * | 1985-07-30 | 1987-06-09 | Japan Abrasive Co., Ltd. | Method and apparatus for cooling molten oxides |
Also Published As
Publication number | Publication date |
---|---|
JPS5752674B2 (en) | 1982-11-09 |
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