Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Patent
1993-06-09
1994-07-12
Picard, Leo P.
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
361767, 174250, H05L 102
Patent
active
053290682
ABSTRACT:
An insulating film is formed on a semiconductor substrate, and an Al electrode pad is provided on the insulating film. The pad is electrically connected to a positive element by means of a signal line. A protection film is formed on the pad and insulating film. First and second openings are formed in the protection film. A barrier metal layer is formed on the inner periphery of the first opening and on the protection film. An Au bump is formed on the barrier metal layer. The Al electrode pad is exposed through the second opening.
REFERENCES:
patent: 4461077 (1984-07-01), Hargis
patent: 4860442 (1989-08-01), Ainsworth et al.
patent: 5004314 (1991-04-01), Jackson et al.
Hirata Seiichi
Yoshida Akito
Kabushiki Kaisha Toshiba
Picard Leo P.
Thomas L.
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