Selectively plating apparatus for forming an annular coated area

Details Selectively plating apparatus for forming an annular coated area Selectively plating apparatus for forming an annular coated area

1986-01-29

1987-06-23

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204275, C25D 1700

Patent

active

046750932

ABSTRACT:
The invention involves a selectively plating apparatus for forming an annular area.
The apparatus is particularly characterized by including the inner and outer mask members which cooperate to define the annular areas to be coated. It enables the automatic operation for forming the annular coated areas and is very effective for the mass production of, for example, lead frames.

REFERENCES:
patent: 3763027 (1973-10-01), Pearson
patent: 4119516 (1978-10-01), Yamaguchi
patent: 4163704 (1979-08-01), Murata
patent: 4240880 (1980-12-01), Tsuchibuchi et al.
patent: 4339319 (1982-07-01), Algo
patent: 4340449 (1982-07-01), Srinivasan et al.

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