Patent ID: 7253527
Filing Date: 2007-08-07
Classification: H01L

Abstract:
1. A semiconductor chip, comprising: a semiconductor substrate having a front surface and a rear surface; a functional device provided in the front surface of the semiconductor substrate; and a through-electrode electrically connected to the functional device and provided in a through-hole disposed on a lateral side of the functional device as extending thicknesswise through the semiconductor substrate, the through-electrode electrically connecting a front side and a rear side of the semiconductor substrate, wherein the through-electrode includes: a seed layer having a portion disposed in a depthwise middle portion of the through-hole as closing the through-hole; a front side electrode disposed on a side of the through-hole closing portion of the seed layer closer to the front surface in the through-hole; and a rear side electrode disposed on a side of the through-hole closing portion of the seed layer closer to the rear surface in the through-hole.