JPS53125787A - A plural number of insulation gate field effect transistor for read only memory and its usage - Google Patents
A plural number of insulation gate field effect transistor for read only memory and its usageInfo
- Publication number
- JPS53125787A JPS53125787A JP4052277A JP4052277A JPS53125787A JP S53125787 A JPS53125787 A JP S53125787A JP 4052277 A JP4052277 A JP 4052277A JP 4052277 A JP4052277 A JP 4052277A JP S53125787 A JPS53125787 A JP S53125787A
- Authority
- JP
- Japan
- Prior art keywords
- plural number
- usage
- read
- memory
- field effect
- 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
Abstract
PURPOSE: To make the degree of integration super-high density, by reducing areas required for element separation and the source and drain, through formation of the high concentration impurity layer of the same type as the source and drain on the semiconductor surface under the gate electrode depending on the content of the information desired to be stored and through provision of a plural number of gates.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52040522A JPS6020902B2 (en) | 1977-04-08 | 1977-04-08 | read-only storage |
US05/894,960 US4233526A (en) | 1977-04-08 | 1978-04-10 | Semiconductor memory device having multi-gate transistors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52040522A JPS6020902B2 (en) | 1977-04-08 | 1977-04-08 | read-only storage |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53125787A true JPS53125787A (en) | 1978-11-02 |
JPS6020902B2 JPS6020902B2 (en) | 1985-05-24 |
Family
ID=12582829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52040522A Expired JPS6020902B2 (en) | 1977-04-08 | 1977-04-08 | read-only storage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6020902B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0095847A2 (en) * | 1982-06-01 | 1983-12-07 | General Instrument Corporation | Compact ROM with reduced access time |
-
1977
- 1977-04-08 JP JP52040522A patent/JPS6020902B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0095847A2 (en) * | 1982-06-01 | 1983-12-07 | General Instrument Corporation | Compact ROM with reduced access time |
JPS58218100A (en) * | 1982-06-01 | 1983-12-19 | ゼネラル・インスツルメント・コ−ポレ−シヨン | Read only memory and circuit used therefor |
EP0095847B1 (en) * | 1982-06-01 | 1990-11-28 | General Instrument Corporation | Compact rom with reduced access time |
Also Published As
Publication number | Publication date |
---|---|
JPS6020902B2 (en) | 1985-05-24 |
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