Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1989-10-16
1991-08-27
Tolin, Gerald P.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
174 163, 357 30, 357 81, 361384, H05K 720
Patent
active
050438450
ABSTRACT:
The present image sensor mounting system is particularly adapted to the mounting of a linear sensor array, of the type having a transparent window on a front surface and a thermal and electrically conductive back surface. The system provides superior electrical and thermal transfer characteristics. A heat sink having at least one flat surface is positioned to make thermal contact with the back surface of the image sensor. A multilayer circuit board having layers of conductive material separated by layers of insulating material and having an opening therethrough sufficient in size to accept the heat sink provides the system support. A metal plating extends from one surface of the board through the opening in the board to the opposite surface of the board with selected ones of the layers of conductive material making electrical contact with the metal plating. The heat sink is mounted in the multilayer circuit board opening in thermal and electrical contact with the metal plating. A layer of thermal and electrically conductive grease is layered between the at least one surface of the heat sink and the conductive back surface of the linear sensor array.
REFERENCES:
patent: 4148052 (1979-04-01), Nathanson
patent: 4451842 (1984-05-01), Pommerrenig
patent: 4509096 (1985-04-01), Baldwin
patent: 4546410 (1985-10-01), Kaufman
patent: 4777560 (1988-10-01), Herrell
patent: 4853828 (1989-08-01), Penn
patent: 4914551 (1990-04-01), Anschel
patent: 4924352 (1990-05-01), Septfons
McDermott Bruce C.
Meierdiercks John D.
Milch James R.
Moore, Jr. Leslie G.
Dugas Edward
Eastman Kodak Company
Tolin Gerald P.
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