Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1990-09-19
1994-03-22
Picard, Leo P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
174252, 174 35R, 174 35GC, 361711, 361712, 361714, 361760, 361816, 361818, H05K 900
Patent
active
052970078
ABSTRACT:
An improved circuit board having a variety of electronic components mounted thereon and having disposed to the autumn side of the circuit board a backing plate having a variety of thicknesses wherein a thicker portion of the backing plate is disposed near portions of the circuit board or components on the circuit board which are of a higher heat generating nature, the circuit board further having a slot extending through the circuit board and inserted in the slot is a metallic shielding cover which contacts the backing plate. Also disclosed is a method for manufacturing the circuit board.
REFERENCES:
patent: 4306275 (1981-12-01), Miura
patent: 4370515 (1983-01-01), Donaldson
patent: 4385202 (1983-05-01), Spinelli et al.
patent: 4472762 (1984-09-01), Spinelli et al.
patent: 4612566 (1986-09-01), Kowata et al.
patent: 4675784 (1987-06-01), Dahlberg et al.
patent: 4771294 (1988-09-01), Wasilovsky
patent: 4993148 (1991-02-01), Adachi et al.
patent: 5006667 (1991-04-01), Lonka
IBM Disclosure Bulletin, "Heat Sink Assembly for TAB-Mounted Devices", vol. 31, No. 6, Nov. 1988.
Deyo Charles C.
Oas Robert H.
Wolters Thomas R.
Hamann H. Fredrick
Murray M. Lee
Picard Leo P.
Rockwell International Corporation
Sparks Donald A.
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