Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1987-04-06
1989-02-28
Lawrence, Evan
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427272, 427277, B05D 512, B05D 132, B05D 312
Patent
active
048084352
ABSTRACT:
An improved method for screen printing fine lines of conductive paste on a substrate wherein a mask having a desired pattern of line shaped openings is placed on the substrate, and conductive paste screened in the openings in the mask in contact with the substrate, and also as a thin layer over the top surface of the mask. The mask is removed from the substrate before the conductive paste in the openings dries, thereby leaving a fine pattern of paste lines with a uniform height on the substrate.
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patent: 3416440 (1968-12-01), Miller et al.
patent: 3712825 (1973-01-01), Yocum
patent: 4068994 (1978-01-01), Cadwallader et al.
patent: 4245273 (1981-01-01), Feinberg et al.
patent: 4327124 (1982-04-01), DesMarais, Jr.
patent: 4604298 (1986-08-01), Shevtchuk et al.
Gibney et al., IBM Technical Disclosure Bulletin, vol. 19, No. 5, Oct. 1976, pp. 1790-1791.
Davis, G. T. et al., "Automatic MLC Screening Mask Cleaner", IBM Technical Disclosure Bulletin, vol. 23, No. 8, Jan. 1981, pp. 3526-3529.
Cropp Michael E.
De Prado Phillip
Desai Kamalesh S.
Blecker Ira David
International Business Machines - Corporation
Lawrence Evan
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