Patent
1988-10-21
1992-06-02
Hille, Rolf
357 70, H01L 2348, H01L 2354
Patent
active
051191679
ABSTRACT:
A method for improving the corrosion resistance of aluminum in a semiconductor device. The step includes providing a semiconductor device having aluminus containing contact pads; attaching a leadframe to the contact pads; and applying sufficient zinc chromate in solution to the contact pads for a sufficient time and at a sufficient temperature to render said aluminum substantially resistant to corrosion.
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Clark S. V.
Hill Kenneth C.
Hille Rolf
Jorgenson Lisa K.
Robinson Richard K.
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