PROCESS OF MANUFACTURE OF SUBSTRATES FOR PRINTED CIRCUIT BOARDS Russian patent published in 1995 - IPC

Abstract RU 2030137 C1

FIELD: radio electronics. SUBSTANCE: aluminium workstock is annealed in oxide atmosphere after two-way through anodizing and is impregnated in saturated solution of chromium anhydride. EFFECT: reduced porosity of anode aluminium oxide.

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RU 2 030 137 C1

Authors

Ignashev E.P.

Krivousova A.K.

Sidorenko G.A.

Dates

1995-02-27Published

1992-10-13Filed