EPROM device and a manufacturing method thereof

Details EPROM device and a manufacturing method thereof EPROM device and a manufacturing method thereof

1987-07-06

1988-02-02

Edlow, Martin H.

357 74, H01L 2310, H01L 2330

Patent

active

047231564

ABSTRACT:
An EPROM device includes a hollow cap having a head portion made of a material which passes UV rays therethrough and is installed on a lead frame covering an EPROM chip. An UV ray permeable resin fills at least a gap between the head portion of the hollow cap and a main surface of the EPROM chip. A first insulating resin fills the remaining portion of the interior space of the hollow cap, thereby forming with the UV ray permeable resin a double filling structure filling the interior of the cap.

REFERENCES:
patent: 4494217 (1985-01-01), Suzuki et al.
patent: 4635165 (1987-01-01), Okuaki

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