Patent ID: 7791207
Filing Date: 2010-09-07
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first opening through a first conductive pad and a second opening through a second conductive pad, wherein the first and second openings have about the same width; a dielectric material over the first and second conductive pads having a third opening which overlies the first opening in the first conductive pad and having a width about the same as the first opening in the first conductive pad and a fourth opening which overlies the second opening in the second conductive pad having a width which is larger than the second opening in the second conductive pad; a conductive material within the first and second openings of the first and second conductive pads and the third and fourth openings of the dielectric material such that the conductive material is electrically coupled with a top surface of the second conductive pad and is electrically isolated from the first conductive pad; and a dielectric spacer on a vertically oriented sidewall of the first and third openings and on a vertically oriented sidewall of the second and fourth openings.