Patent ID: 9105664
Filing Date: 2015-08-11
Classification: H01L

Abstract:
1. A method comprising: providing a substrate; forming a projection extending upwardly from the substrate, the projection having a channel region therein; forming a gate structure engaging the projection adjacent to the channel region, the gate structure having spaced first and second conductive layers and a strain-inducing conductive layer disposed between the first and second conductive layers; forming a capping layer over the gate structure; imparting strain to the channel region, including performing a heat treatment on the gate structure; and removing the capping layer; wherein the imparting strain is carried out in a manner that imparts tensile strain to the channel region; wherein the performing the heat treatment includes performing a rapid thermal anneal and a millisecond anneal; wherein the performing the rapid thermal anneal is carried out at a temperature between approximately 990 and 1010° C.; and wherein the performing the millisecond anneal is carried out at a temperature of approximately 1250° C.