Patent ID: 9006901
Filing Date: 2015-04-14
Classification: H01L,H05K,Y10T

Abstract:
1. A thin power device comprising: a substrate having a first set of first contact pads arranged at a front surface of the substrate and a second set of second contact pads arranged at a back surface of the substrate, wherein each first contact pad in the first set of contact pads being electrically connected with a second contact pad in the second set of contact pads; a through opening opened from the front surface and through the substrate thus exposing a third contact pad at the back surface of the substrate, wherein the third contact pad is one of the second set of second contact pads not electrically connected with any first contact pad in the first set of contact pads; a semiconductor chip embedded into the through opening, wherein a back metal layer at a back surface of the chip is attached on the third contact pad; and a plurality of conductive structures electrically connecting electrodes at a front surface of the chip with the corresponding first contact pads in the first sets of contact pads.