ES268220A1 - An electrochemical procedure for the manufacture of printed circuits (Machine-translation by Google Translate, not legally binding)
- Google Patents
An electrochemical procedure for the manufacture of printed circuits (Machine-translation by Google Translate, not legally binding)
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Y TALLER DE INVESTIGACIEN DEL
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Y TALLER DE INVESTIGACIEN DEL
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Priority to ES0268220ApriorityCriticalpatent/ES268220A1/en
Publication of ES268220A1publicationCriticalpatent/ES268220A1/en
Insulated Metal Substrates For Printed Circuits
(AREA)
Abstract
An electrochemical process for the manufacture of printed circuits, consisting of the succession of following operations: starting from a properly prepared insulating board, apply a thin metallic coating to the surface of the board to make it conductive, draw on this conductive surface the lines of circuit, reserve the surface, inactivate the plate for the circuit by means of a protective paint, reinforce the exposed circuit lines by electrochemically produced metallic deposits, of increasing hardness, and finally eliminate the protective lacquer and the thin layer of metallic coating on the undesirable parts of the plate surface for the circuit. (Machine-translation by Google Translate, not legally binding)
ES0268220A1961-06-131961-06-13An electrochemical procedure for the manufacture of printed circuits (Machine-translation by Google Translate, not legally binding)
ExpiredES268220A1
(en)
Procedure and apparatus for depositing electrolytically a superficial layer on metal articles (Machine-translation by Google Translate, not legally binding)
Method and device for eliminating a part of a thin metallic work provided on an insulating or semiconductor base (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture of electrical resistances of metallic film, of great accuracy (Machine-translation by Google Translate, not legally binding)