Patent ID: 6673716
Filing Date: 2004-01-06
Classification: C23C,H01L

Abstract:
A method of forming a Ti layer and a TiN layer on an integrated circuit substrate in a single PVD deposition chamber without using either a collimator or a shutter, comprising the steps:(a) providing a hollow cathode target containing titanium, said hollow cathode target having a cavity region; (b) providing a substrate within said hollow cathode target, said substrate attached to an electrostatic chuck; (c) sputtering Ti from said target to form a layer containing Ti on said substrate; (d) sputtering Ti from said target and simultaneously flowing a nitrogen-containing gas into said deposition chamber to form a layer containing TiN on said substrate; and (e) controlling the temperature of said substrate prior to deposition of at least one of said layer containing Ti on said substrate of step (c) or said layer containing TiN on said substrate of step (d), wherein step (e) is performed by cooling the substrate by time delay.