Patent ID: 8105948
Filing Date: 2012-01-31
Classification: H01L

Abstract:
1. A method for connecting to an area that is to be fully covered by a dielectric layer, comprising: forming a conductive pedestal, having a top surface and a height, that contacts, and extends upwards from, said area; covering any exposed surfaces, including said pedestal, with a layer of dielectric material, said dielectric layer having a first top surface and a thickness that exceeds said pedestal height, whereby said pedestal is fully covered by said dielectric layer; using only a highly selective slurry (HSS), that removes dielectric material at a faster rate than it removes conductive material, performing chemical mechanical polishing (CMP) of said first top surface until said dielectric layer has a second top surface whereby said pedestal top surface is fully exposed without removal of any additional layers; and then contacting said exposed pedestal top surface, thereby connecting to said area.