Patent ID: 6192580
Filing Date: 2001-02-27
Classification: H05K,Y10T

Abstract:
A method for producing a laminate printed circuit board, comprising:providing a plurality of conductors on an outer layer of the printed circuit board, each of which extends in a first direction;producing a plurality of blind through holes in the outer layer, the blind through holes extending only partly through the laminate printed circuit board and electrically connecting the outer layer with an intermediate layer of the printed circuit board;forming a lead that extends in a direction different from the first direction, and that is connected to the plurality of blind through holes, with the lead forming the intermediate layer of the printed circuit board;forming a plurality of wirings on the laminate printed circuit board so that the plurality of wirings connect the plurality of conductors and the plurality of blind through holes, respectively;plating the plurality of conductors by means of the lead that extends in the direction different from the first direction; andsevering a portion of the lead connecting nearby ones of said plurality of blind through holes together so that the nearby ones of said plurality of blind through holes electrically isolated from each other and are not connected through the lead, said severing is performed without forming deformed residuals from the leads.