PROCESS OF MANUFACTURE OF TWO-SIDE PRINTED CIRCUIT BOARDS Russian patent published in 1995 - IPC

Abstract RU 2040130 C1

FIELD: radio engineering. SUBSTANCE: process of manufacture involves mechanical working of plates from unfoiled glass cloth-based laminate, chemical treatment (etching and modification) in acidic solutions containing chromium oxide (YI), vacuum sputtering of adhesive sublayer of metal from group of chromium, nickel or vanadium, application of conductive copper layer and formation of pattern of circuit in conductive and adhesive layers. EFFECT: increased productivity and quality of printed circuit boards. 1 tbl

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RU 2 040 130 C1

Authors

Ezhovskij Jurij Konstantinovich

Vakhrin Vladimir Viktorovich

Gavrilina Irina Pavlovna

Dates

1995-07-20Published

1992-04-13Filed