Patent ID: 8283250
Filing Date: 2012-10-09
Classification: H01L

Abstract:
1. A method of making a semiconductor device, comprising: providing a semiconductor wafer containing a plurality of semiconductor die separated by a peripheral region; forming a first via in a first surface of the peripheral region; depositing a first insulating material in the first via; forming a second via in the first insulating material; forming a first conductive layer in the second via; forming a third via in the first conductive layer; depositing a second insulating material in the third via; forming a fourth via in the second insulating material; forming a second conductive layer in the fourth via; forming a fifth via in a second surface of the peripheral region opposite the first surface of the peripheral region, the fifth via extending through the peripheral region to the second conductive layer; depositing a third insulating material in the fifth via; forming a third conductive layer in the fifth via; forming a sixth via in the second surface of the peripheral region, the sixth via extending through the peripheral region to the first conductive layer; depositing a fourth insulating material in the sixth via; and forming a fourth conductive layer in the sixth via to form a via-in-via structure.