Patent ID: 8112884

Claim:
A method for providing an efficient thermal transfer through a printed circuit board (PCB) comprising: forming at least one hole through a PCB having a top and a bottom surface; depositing at least a first copper layer in the at least one hole; filling the at least one hole with filler material; depositing at least an additional copper layer over the top and bottom surfaces of the area of the at least one hole, wherein depositing the first copper layer includes depositing the first copper layer using an electroless copper plating technique, wherein depositing the first copper layer includes depositing a second copper layer in the at least one hole and an area of the top and bottom surfaces of the PCB surrounding the at least one hole using standard PCB plating techniques, wherein depositing the first copper layer includes masking an area of the PCB outside the area of the at least one hole and depositing a third copper layer in the at least one hole using pulse plating, wherein filling includes sanding flush down to the level of the second copper layer.