Metal working – Method of mechanical manufacture – Electrical device making
Patent
1990-12-11
1992-05-26
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
294264, 29825, 156901, H05K 300
Patent
active
051155613
ABSTRACT:
A printed circuit board having a substrate on which circuitry is formed, is spot-faced, by cutting at first the circuitry, and then by spot-facing the substrate up to a desired depth.
REFERENCES:
patent: 4588468 (1986-05-01), McGinty et al.
Kawamura Masahiro
Nishigai Masao
Otani Tamio
Arbes Carl J.
Hitachi Seiko Ltd.
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