Patent ID: 6180534
Filing Date: 2001-01-30
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device, which method comprises:forming a first dielectric layer on a substrate;forming a first patterned conductive layer having gaps on the first dielectric layer, the first patterned conductive layer comprising a first conductive feature having an upper surface and side surfaces;depositing a dielectric layer comprising hydrogen silsesquioxane (HSQ) containing Si--H bonds directly on the first patterned conductive layer and on the first dielectric layer to fill the gaps;depositing a second dielectric layer on the first patterned conductive layer and on the HSQ gap fill layer;forming a photoresist mask on the second dielectric layer;forming a through-hole in the second dielectric layer exposing a portion of the upper surface and at least a portion of a side surface of the first conductive feature, and penetrating into and exposing a portion of the HSQ gap fill layer; and removing the photoresist mask utilizing a plasma containing a sufficient amount of hydrogen to prevent reduction in the number of Si--H bonds in the as-deposited HSQ gap fill layer below about 70%.