Patent ID: 8950063
Filing Date: 2015-02-10
Classification: H05K,Y10T

Abstract:
1. A method of manufacturing at least a portion of a printed circuit board, the method comprising: imaging at least one photo resist onto a first plural-layer substrate having a metal foil formed on a first side of the first plural-layer substrate; etching off the metal foil from the first plural-layer substrate with exception of at least one part of the metal foil covered by the at least one photo resist; stripping off the at least one photo resist to expose the at least one part of the metal foil to form at least one first metal pad on the first side of the first plural-layer substrate; providing a lamination adhesive and a protective film; forming at least one via into the protective film and the lamination adhesive to expose the at least one first metal pad on the first side of the first plural-layer substrate comprising a plurality of first circuit layers; filling at least one conductive paste into the via formed in the lamination adhesive and the protective film; removing the protective film to expose the lamination adhesive on the first plural-layer substrate; and linking the first plural-layer substrate with a second plural-layer substrate comprising a plurality of second circuit layer with at least one second metal pad on a second side of the second plural-layer substrate.