Process for selectively applying a conformal coating with a mask

Details Process for selectively applying a conformal coating with a mask Process for selectively applying a conformal coating with a mask

1979-07-02

1981-03-10

Smith, Ronald H.

Coating processes

Nonuniform coating

Mask or stencil utilized

156247, B05D 132

Patent

active

042554691

ABSTRACT:
A process for masking an electronic module with a masking tape having an imbedded wire utilized as a cutting edge. The wire is adhered along the edge of the masking tape and the tape is applied to the module so that the wire separates the area to be coated from the area to be coating free. A conformal coating is then applied to the module. After the conformal coating has dried the wire cutting edge is pulled from the tape so as to cut a smooth edge through the conformal coating. The tape is then removed leaving the area underneath free of the coating.

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patent: 2808358 (1957-10-01), Masse
patent: 2895865 (1959-07-01), Humphner
patent: 3130078 (1964-04-01), Lewis et al.
patent: 3138850 (1964-06-01), Laro et al.
patent: 3684602 (1972-08-01), Ball
patent: 4033358 (1977-07-01), Harrington

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