Fishing – trapping – and vermin destroying
Patent
1989-03-10
1991-02-19
Chaudhuri, Olik
Fishing, trapping, and vermin destroying
437217, 437219, H01L 2102
Patent
active
049944118
ABSTRACT:
A process of producing a semiconductor device involving the steps of providing a lead frame having inner leads spaced from each other and connected together by a connecting portion; bonding a layer of an insulating material to the connecting portion and to surrounding portions of the inner leads; removing the connecting portion and a portion of the layer of insulating material to form end portions of the inner leads which are separated from each other and retained in a spaced arrangement by a remaning portion of the layer of insulating material; joining a semiconductor chip having bonding pads to the end portions of the inner leads; connecting the bonding pads on the semiconductor chip and the inner leads by wires; and encapsulating the semiconductor chip, the remaining portion of the layer of insulating material, the inner leads and the wires within a resin material; a peripheral portion of one face of the semiconductor chip partially overlapping faces of the end portions.
Kitamura Wahei
Masuda Masachika
Murakami Gen
Naito Takahiro
Sato Hajime
Chaudhuri Olik
Griffis Andrew
Hitachi , Ltd.
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