Patent ID: 9142517
Filing Date: 2015-09-22
Classification: H01L

Abstract:
1. A semiconductor substrate, comprising: a conductive pad formed in and near a surface of the semiconductor substrate, wherein a surface of the conductive pad is exposed, and wherein the surface of the conductive pad usable for hybrid-bonding with another conductive pad of another substrate; a first barrier layer lining the conductive pad, wherein the first barrier layer separates a bottom surface of the conductive pad from the semiconductor substrate; a second barrier layer surrounding the conductive pad, wherein a surface of the second barrier layer is aligned with the surface of the conductive pad, and a thickness of the second barrier layer is greater than about 0.01 microns (μm); and an insulating material over the semiconductor substrate, wherein the second barrier layer is between the semiconductor substrate and the insulating material, and the insulating material is usable for hybrid-bonding with another insulating material of another substrate.