Patent ID: 9034760
Filing Date: 2015-05-19
Classification: C23C,H01L

Abstract:
1. A method comprising: (a) providing a substrate to a chamber, the substrate having a field region and a feature recessed from the field region; (b) exposing the substrate to an organometallic tungsten precursor; (c) removing the organometallic tungsten precursor not adsorbed onto the substrate from the chamber; (d) treating the substrate with a first treatment including a heat treatment or a plasma treatment to form a tungsten layer on the substrate; (e) after operation (d), removing residual gasses from the chamber; and (f) treating the tungsten layer on the substrate with a second treatment including a heat treatment or a plasma treatment; and repeating operations (b) through (f), wherein a first time operations (b) through (f) are performed forms a tungsten layer having either a tensile stress or a compressive stress, and wherein a second time operations (b) through (f) are performed forms a tungsten-containing layer having the other of the tensile stress or the compressive stress.