Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1987-06-22
1988-11-29
Morgenstern, Norman
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427423, B05D 108
Patent
active
047880775
ABSTRACT:
Method of thermal spray coating a substrate by projecting heat-softened particles onto said substrate including the steps of contacting particles to be projected and coated onto the substrate with a body of hot gases, heating the particles in the hot gases to a temperature near, at or above their melting point and impinging the heated particles against the substrate to provide a coating having the desired thickness wherein said particles are first heated to a relatively higher temperature and impinged onto the substrate to provide a first layer having a thickness that is a fraction of the desired thickness and thereafter heating coated particles to a lower temperature in the hot gases and impinging them on the first layer to provide a second layer having a thickness which together with the thickness of the first layer equals the desired thickness. The invention also includes the resulting coated substrates.
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Morgenstern Norman
O'Brien Cornelius F.
Padgett Marianne L.
Union Carbide Corporation
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