Coating integrated circuits using thermal spray

Details Coating integrated circuits using thermal spray Coating integrated circuits using thermal spray

1998-04-18

2000-08-29

Bareford, Katherine A.

Coating processes

Spray coating utilizing flame or plasma heat

Nonuniform or patterned coating

427446, 427 96, C23C 412

Patent

active

061105376

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: 4031268 (1977-06-01), Fairbairn
patent: 4115600 (1978-09-01), Schroeder et al.
patent: 4596718 (1986-06-01), Gruner
patent: 5648123 (1997-07-01), Kuhn et al.

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