Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1988-08-22
1989-08-22
Beck, Shrive
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
4274431, 427304, 427305, B05D 314
Patent
active
048594946
ABSTRACT:
A method for the electroless coating of ferromagnetic substrates substantially free of microspheres or other unwanted auxiliary matter, thereby reducing the roughness of the coated articles. The method and articles produced are subjected to a magnetic field and demagnetized prior to the plating step. The method is of particular utility in the coating of textile machinery parts operating at high rotational speed in the minimizing of dust and yarn damage. The method is also of great utility in the deposition of composite electroless coatings.
REFERENCES:
patent: 3869356 (1975-03-01), Long
patent: 3905776 (1975-09-01), Long
patent: 4017265 (1977-04-01), Taylor
patent: 4244788 (1981-01-01), Faulkner
patent: 4292120 (1981-09-01), Nacci
patent: 4358923 (1982-11-01), Feldstein
patent: 4547407 (1985-10-01), Spencer
Beck Shrive
Dang Vi Duong
Surface Technology, Inc.
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