High coupling ratio electrically programmable ROM

Details High coupling ratio electrically programmable ROM High coupling ratio electrically programmable ROM

1982-02-01

1983-12-20

Edlow, Martin H.

357 59, 357 23, H01L 2702

Patent

active

044220928

ABSTRACT:
An electrically programmable read only memory (EPROM) of the floating gate type is constructed having an improved coupling ratio made by allowing the edges of the floating gates to be self aligned with the edges of the control gates. The ratio of the capacitance between the floating gate and control gate is increased by extending the floating gate out over the source and drain.

REFERENCES:
patent: 4258378 (1981-03-01), Wall
patent: 4282540 (1981-08-01), Ning et al.

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