Electricity: electrical systems and devices – Miscellaneous
Patent
1990-09-28
1992-02-11
Powell, William A.
Electricity: electrical systems and devices
Miscellaneous
29827, 156643, 156656, 1566591, 156668, 357 70, 361421, 21912169, 428137, 428209, H05K 710, H05K 502, H01L 2348, B44C 122
Patent
active
050880080
ABSTRACT:
According to the present invention, a circuit board for mounting electronic components wherein a metal layer united with a substrate layer has a predetermined portion exposed is manufactured by:
REFERENCES:
patent: 3711625 (1973-01-01), Dupuis
patent: 4480288 (1984-10-01), Gazdik et al.
patent: 4642160 (1987-02-01), Burgess
patent: 4786358 (1988-11-01), Yamazaki et al.
patent: 4949225 (1990-08-01), Sagisaka et al.
Kondo Mitsuhiro
Takeyama Takeshi
Ibiden Co. Ltd.
Powell William A.
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