Patent ID: 6713399
Filing Date: 2004-03-30
Classification: H01C,H05K

Abstract:
An embedded resistor printed circuit board fabrication method for forming circuit substrates having circuitry traces and embedded resistors, the method comprising the steps of:a. preparing a substrate having a top conductive layer and a bottom insulating layer, and then etching said top conductive layer to form a number of recesses in said top conductive layer; b. embedding thin film resistive material in said recesses and enabling said first conductive layer to be electrically connected to lateral sides of said thin film resistive material; c. plating a further conductive layer on top of said first conductive layer and said thin film resistive material to form a second conductive layer; and d. etching said second conductive layer to let said second conductive layer be electrically connected to said thin film type resistors.