Fishing – trapping – and vermin destroying
Patent
1994-04-08
1995-07-18
Heran, Brian E.
Fishing, trapping, and vermin destroying
437227, 437902, 437912, 437974, 148DIG28, H01L 218252
Patent
active
054340942
ABSTRACT:
FET devices according to the invention are made by etching separation grooves and the via-holes from the front surface of the substrate. Thereafter, the thickness of the substrate is reduced from the rear surface to expose the plating in the via-holes and separation grooves. A rear surface electrode and a plated heat sink are sequentially deposited on the rear surface of the thinned substrate. The devices are divided from a wafer by etching and/or severing along the separation grooves and at opposed locations along the plated heat sink.
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Ishikawa Takahide
Kobiki Michihiro
Yoshida Masahiro
Heran Brian E.
Mitsubishi Denki & Kabushiki Kaisha
Trinh Michael
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