Patent ID: 9538647
Date: 2017-01-03
CPC Classifications: H01L,H05K,Y10T

Claim:
1. A substrate structure, comprising: a substrate, comprising a dielectric layer, a plurality of pads, a patterned solder mask, a first through hole, a first surface, and a second surface opposite to the first surface, the plurality of pads being respectively disposed on two opposite surfaces of the dielectric layer, the patterned solder mask covering the two opposite surfaces and exposing the plurality of pads, wherein the first through hole penetrates the substrate for connecting the first surface and the second surface and the first through hole penetrates the dielectric layer and the patterned solder mask; and a carrier, comprising a second through hole, a release layer, an insulating paste layer, and a metal layer, wherein the insulating paste layer is disposed between the release layer and the metal layer, the carrier is attached to the second surface by attaching the release layer to the second surface and contacting the release layer with the patterned solder mask, the second through hole corresponds to the first through hole and penetrates the carrier for exposing the first through hole, and a smallest diameter of the second through hole is greater than a largest diameter of the first through hole.