Fluorhectorite laminate printed circuit substrate

Details Fluorhectorite laminate printed circuit substrate Fluorhectorite laminate printed circuit substrate

1988-11-28

1990-05-01

Ryan, Patrick

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428363, 428 364, 428688, 428696, 428901, 361397, 174255, 174256, 264104, 264109, 264110, B32B 900

Patent

active

049217488

ABSTRACT:
Synthetic fluorhectorite films impregnated with polyimide resin are stacked, press-laminated and post-cured to produce a printed wiring board substrate with thermal expansion matching ceramic components. The substrate can be cleanly drilled for through-holes and plated without the need to remove residue as with glass/epoxy boards.

REFERENCES:
patent: 4239519 (1980-12-01), Beall et al.
patent: 4510230 (1985-04-01), Coreleskie et al.
patent: 4559264 (1985-12-01), Hoda et al.
patent: 4621043 (1986-11-01), Gervay
patent: 4775586 (1988-10-01), Bohrn et al.

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