Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1982-07-29
1984-12-04
Smith, John D.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
228118, 427259, 427386, 4273855, 427 97, H05K 328
Patent
active
044864663
ABSTRACT:
A resinous protective coating useful in the manufacture of printed circuit boards with circuit patterns having a resolution of at least 0.25 mm lines and spaces thereon. The protective coating comprises resins dissolved in solvents, wherein the coating upon being subjected to heat goes from a high viscosity solution to a gel and then to a solid or from a soft "gel-like" state into a solid. The protective coating is resistant to copper electroplating baths, adheres to insulating substrates, adhesive coated base materials as well as metallic substrates and is capable of withstanding the thermal shock of dip soldering.
REFERENCES:
patent: 3519602 (1970-07-01), Castro et al.
patent: 3816364 (1974-06-01), Bayer
patent: 3864426 (1975-02-01), Salensky
patent: 3880868 (1970-05-01), Trice et al.
patent: 3926904 (1975-12-01), Scola
patent: 4064287 (1977-12-01), Lipson et al.
patent: 4084022 (1978-04-01), Tratz
patent: 4168331 (1979-09-01), Davis
patent: 4230793 (1980-10-01), Losert
patent: 4240945 (1980-12-01), Gabrick
Troxell, "Screenable Epoxy-Anhydride System for Printed Circuit Boards", IBM TDB, vol. 17, No. 9, Feb. 1965, p. 735.
Kirk-Othner, "Encyclopedia of Chemical Technology", 3rd Edition, vol. 9, pp. 267-289, 1980.
Leech Edward J.
Russo Frank D.
Kollmorgen Technologies Corporation
Smith John D.
LandOfFree
High resolution screen printable resists does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High resolution screen printable resists, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High resolution screen printable resists will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1582490