Composition for protective coating material

Details Composition for protective coating material Composition for protective coating material

1984-01-05

1985-04-16

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 38, 357 72, 427 82, C08G 7704

Patent

active

045117055

ABSTRACT:
There are disclosed a composition for protective coating material, preferably for a protective coating material of a semiconductor device which is constituted of principal elements of a semiconductor memory element, an encapsulating layer containing an inorganic material for encapsulating said element and a layer of a cured protective coating material arranged between said memory element and said encapsulating layer, which is composed of a polyamide acid obtained by the reaction of a diaminosiloxane, an organic diamine containing no silicon and an organic tetrabasic acid dianhydride, and a semiconductor device having a layer of a cured protective coating material composed of a polyimide-silicone copolymer obtained by dehydrating ring closure of the above-mentioned polyamide acid.

REFERENCES:
patent: 3740305 (1973-06-01), Hoback et al.
patent: 4017340 (1977-04-01), Yerman
patent: 4030948 (1977-06-01), Berger
patent: 4051163 (1977-09-01), Berger

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