Patent ID: 8563349
Filing Date: 2013-10-22
Classification: H01L,Y02E,Y02P

Abstract:
1. A method of forming a semiconductor device, comprising: preparing a semiconductor substrate having a plurality of chips formed on a first surface of the semiconductor substrate and a scribe lane disposed between the chips, wherein each of the chips includes a first insulating layer and a chip pad formed on the first insulating layer; attaching a light transmitting substrate to the first surface of the semiconductor substrate having the chips formed thereon; forming a mask pattern having first openings and second openings on a second surface of the semiconductor substrate located opposite to the first surface; simultaneously forming first grooves having a first depth in a center of the scribe lane, and through holes penetrating the semiconductor substrate and the first insulating layer and having a second depth greater than the first depth to expose the chip pad by etching the semiconductor substrate using the mask pattern as an etch mask; removing the mask pattern to expose the first grooves and the through holes; forming insulating spacers on sidewalls of the through holes; forming through electrodes filling the through holes; forming a second insulating layer covering the through electrodes; forming a plurality of connection patterns which penetrate the second insulating layer and which are disposed on a corresponding one of each of the through electrodes; using a sawing process to cut the semiconductor substrate and the light transmitting substrate along the first grooves to form lower grooves along bottoms of the first grooves, wherein the lower grooves penetrate the semiconductor substrate, the first insulating layer and the light transmitting substrate, and wherein a dicing film is exposed to bottoms of the lower grooves; and removing the dicing film to separate the chips.