Patent ID: 6090695
Filing Date: 2000-07-18
Classification: H01L

Abstract:
A method for forming a plurality of self-aligned landing pads, the method comprising:providing a substrate, wherein the substrate contains a patterned first conducting layer, a patterned first insulator, and a patterned second insulator;forming a second insulator on the substrate;patterning the second insulator to form a plurality of contact openings, wherein the contact openings expose the substrate;forming a second conducting layer on the substrate;forming a photoresist layer on the second conducting layer;removing a portion of the second conducting layer by using the photoresist layer as a mask, wherein a remaining portion of the second conducting layer is located in a position corresponding to the contact openings;removing the photoresist layer; andremoving the remaining portion of the second conducting layer to form the landing pads in the contact openings.