H - Electricity – 05 – K
Patent
H - Electricity
05
K
356/18
H05K 3/04 (2006.01) H05K 3/10 (2006.01) H05K 3/28 (2006.01) H05K 3/34 (2006.01) H05K 3/38 (2006.01) H05K 3/42 (2006.01)
Patent
CA 1220873
ABSTRACT OF THE DISCLOSURE A circuit board comprises a nonconductive polymer board having a channel, a through hole intersecting the channel and conductive metal vacuum deposited in the channel and the through-hole by covering the nonconductive board including the through-hole with the conductive metal and surface processing the nonchannel portion of the noncon- ductive board to remove the conductive metal therefrom and leave the conductive metal in the channel and the through- hole.
432594
G. Ronald Bell & Associates
John Fluke Mfg. Co. Inc.
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