Chemistry: analytical and immunological testing – Optical result – With reagent in absorbent or bibulous substrate
Patent
1997-01-28
1999-03-23
Picardat, Kevin M.
Chemistry: analytical and immunological testing
Optical result
With reagent in absorbent or bibulous substrate
438613, H01L 2144
Patent
active
058858920
ABSTRACT:
A method of attaching inner leads to the metal electrodes of an integrated-circuit die, in which the tips of the inner leads are pressed onto the metal electrodes by a heated bonding tool. The heat of the bonding tool softens the tips of the inner leads, enabling the inner leads to be directly pressure-welded to the metal electrodes, without the need for intervening soft metal bumps.
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Frank Robert J.
OKI Electric Industry Co., Ltd.
Petruzzelli Julie A.
Picardat Kevin M.
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