Coating delicate circuits

Details Coating delicate circuits Coating delicate circuits

1996-11-15

1998-06-09

Czaja, Donald E.

Coating apparatus

Projection or spray type

With projector heating, cleaning or conditioning

118323, 118500, B05B 716, B05B 1502, B05B 300, B05C 1300

Patent

active

057627118

ABSTRACT:
Protective and security coatings are applied to an integrated circuit by periodically passing the integrated circuit through a flame spray containing molten particles of the coating composition. The integrated circuit is attached to a fixture that is cooled with a coolant that is applied to the integrated circuit. The distance between the flame spray gun and the integrated circuit is controlled so that the particles are molten when they strike the circuit but the circuit heating is minimized. A flame resistant mask retains the integrated circuit on the fixture. The mask is constructed of a low thermally conductive material and the fixture is constructed of a high thermally conducive material.

REFERENCES:
patent: 3170813 (1965-02-01), Duncan et al.
patent: 3532072 (1970-10-01), Kiwiet
patent: 5290354 (1994-03-01), Haluska
patent: 5364656 (1994-11-01), Koorey
patent: 5456951 (1995-10-01), Sahoo
patent: 5468299 (1995-11-01), Tsai
patent: 5480483 (1996-01-01), Velie

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