Patent ID: 7745255
Filing Date: 2010-06-29
Classification: H01L

Abstract:
1. A method of fabricating an electronic device having a bonding pad structure, comprising: forming a first bonding pad on a substrate; forming a second bonding pad spaced apart from the first bonding pad, wherein a top surface of the second bonding pad is formed at a higher level than the first bonding pad, wherein the bonding pad structure includes at least two first bonding pads and at least two second bonding pads; forming a lower insulating layer on the substrate, wherein the first bonding pads pass through the lower insulating layer; forming an upper insulating layer on a portion of the substrate having the first bonding pads, wherein the second bonding pads sequentially pass through the upper insulating layer and the lower insulating layer; and exposing top surfaces of the first bonding pads by etching the upper insulating layer using the second bonding pads as etching masks.