Liquid chemical process for forming conductive through-holes...

H - Electricity – 05 – K

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H05K 3/46 (2006.01) H05K 3/40 (2006.01) H05K 3/00 (2006.01)

Patent

CA 1214571

TITLE LIQUID CHEMICAL PROCESS FOR FORMING CONDUCTIVE THROUGH-HOLES THROUGH A DIELECTRIC LAYER ABSTRACT A conductive through-hole hole is formed by liquid chemically etching a hole completely through a dielectric sandwiched between conductors and by deforming at least one conductor which has been undercut during the etching.

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