Patent
1984-06-29
1985-08-13
James, Andrew J.
357 80, H01L 2302, H01L 3902
Patent
active
045353506
ABSTRACT:
An adhesive composition for attaching semiconductor die to a substrate of a semiconductor device package includes a crosslinkable resinous polyimide, and an aminosilane crosslinking agent. For applications where backside contact to the semiconductor die is desired, the composition also contains finely divided conductive metal, such as silver flakes. When used in a novel process in which the adhesive composition is placed on the semiconductor device substrate prior to gelling, outgassed, a semiconductor die is placed on the outgassed composition, and the composition cured, the resulting semiconductor device package meets military specifications with a substantial cost reduction.
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Belani Jadish G.
Goodrich Gary B.
Higgins Willis E.
James Andrew J.
National Semiconductor Corporation
Prenty Mark
Winters Paul F.
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