Metal working – Method of mechanical manufacture – Electrical device making
Patent
1993-04-08
1995-02-21
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
29852, H01K 322, H01K 310
Patent
active
053904125
ABSTRACT:
A new and improved printed circuit board tool and method of making and using it, to produce three dimensional printed circuit boards having grooves with strongly bonded or laminated metallic pads therein. The printed circuit board tool includes a metallized male mold substrate having a plurality of groove forming projections disposed in the substrate surface. The method of making the metallized mold includes forming a female parent or predecessor master tool that may be used to produce a large number of the metallized male molds for producing new and improved three-dimensional printed circuit boards. The new and improved three-dimensional printed circuit board includes a substrate composed of a high heat deflective plastic, and a plurality of recesses or grooves molded into the substrate surface for receiving therein the fine pitch, closely spaced-apart leads of an integrated circuit. A plurality of metallized sunken pads or lands are adhered or bonded within the grooves for establishing an electrical path within each groove.
REFERENCES:
patent: 2772501 (1956-12-01), Malcolm
patent: 2986804 (1961-06-01), Greenman et al.
patent: 3037265 (1962-06-01), Kollmeier
patent: 3990142 (1976-11-01), Weglin
patent: 5090122 (1992-02-01), Kitagawa
Echols P. W.
Kleinke Bernard L.
Potts Jerry R.
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