Patent ID: 9450092
Filing Date: 2016-09-20
CPC Classification: H01L

Claim Text:
1. A semiconductor device, comprising: a first channel comprising an N-type material and a first current flow direction along a first major axis of the first channel; a second channel comprising a P-type material and a second current flow direction along a second major axis of the second channel; a gate electrode structure disposed on the first and second channels, the gate electrode structure comprising a first metal disposed over the first channel that exerts a tensile stress upon the first channel such that charge carrier mobility in the first channel is improved in the first current flow direction, and the gate electrode structure comprising a second metal disposed over the second channel that exerts a compressive stress upon the second channel such that charge carrier mobility in the second channel is improved in the second current flow direction, wherein the first metal is different than the second metal; and an isolation structure between the first channel and the second channel, wherein the first metal and the second metal are laterally in contact with one another above the isolation structure.