Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1994-09-20
1995-05-23
Tolin, Gerald P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
174250, 174255, 361792, 361795, H05K 102
Patent
active
054186900
ABSTRACT:
Multiple circuit functions embodied in electrical circuit lines and areas are supported by a multilayered printed circuit board of various lengths and widths (defining "x" and "y" directions) and of various thicknesses (defining a "z" direction) all on a single board. Several ways of achieving such variations in thickness include providing two layer subassemblies arranged in an alternate and intermediate manner, one subassembly being adapted to support electrical circuit lines and areas, and the other subassembly being formed of thin film dielectric material of various precalculated thicknesses. Another way of achieving a variation in thickness is to limit the surface covered by circuit lines with a pre-calculated core thickness.
REFERENCES:
patent: 3436819 (1969-04-01), Lunine
patent: 3516156 (1970-06-01), Steranko
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patent: 4659931 (1987-04-01), Schmitz et al.
patent: 4755911 (1988-07-01), Suzuki
patent: 4849284 (1989-07-01), Arthur et al.
patent: 4967314 (1990-10-01), Higgins, III
patent: 5012047 (1991-04-01), Dohya
Conn Robert B.
Mayo Darleen
Youngs, Jr. Thurston B.
Clarkson Douglas M.
International Business Machines - Corporation
Thomas L.
Tolin Gerald P.
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