Erasable and programable read only memory devices

Details Erasable and programable read only memory devices Erasable and programable read only memory devices

1984-03-07

1987-12-01

Davie, James W.

Electricity: conductors and insulators

Feedthrough or bushing

Compression

357 80, 174 52PE, 361401, H01L 2308, H01L 2318

Patent

active

047107979

ABSTRACT:
An EPROM device is constituted by an IC lead frame having an island area and a plurality of lead wires, an EPROM IC chip mounted in the island area of the frame, a plurality of wirings, each connecting the bonding pad of the IC chip to one of the lead wires, a layer of silicone resin material formed on the upper surface of the IC chip, a window plate placed on the surface of the silicone resin layer for transmitting ultraviolet rays and bonded to the silicone resin layer, and a molded package of epoxy resin encapsulating the chip island area, the EPROM chip and the silicone resin layer so as to expose the upper surface of the window plate.

REFERENCES:
patent: 3622419 (1971-11-01), London et al.
patent: 3924246 (1975-12-01), Scherer
patent: 4114177 (1978-09-01), King

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