Semiconductor read only memory and method of making the same
US4476478A · kind A · utility
14Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1981 |
| Grant date | Oct 9, 1984 |
| Priority date | — |
| Expiry date | Mar 19, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A semiconductor read only memory having a plurality of MOS transistors and polycrystalline or amorphous silicon resistances connected to the source or drain regions of the MOS transistors, laser beams irradiating selected silicon resistances to thermally activate those resistances and store the required data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.