Laser programmable memory array
US4872140A · kind A · utility
24Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1987 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | May 19, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention discloses a laser programmable read only semiconductor-based memory array comprised of memory cells, a group of word lines, a group of bit lines. Each of the memory cells is connected to one of the group of bit lines, and one of the group of word lines and each memory cell is comprised of a memory element and a laser programmable link. In one embodiment, each memory cell is comprised of a transistor and a laser programmable link composed of the same material as either the word or the bit lines. Programming is accomplished by laser coding of the links.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.