Patent ID: 9455199
Filing Date: 2016-09-27
CPC Classification: H01L

Claim Text:
1. A method of forming PMOS and NMOS FinFET devices for a CMOS integrated circuit product formed on a semiconductor substrate made of a first semiconductor material, the method comprising: forming a first fin for said PMOS device and a second fin for said NMOS device, each of said first and second fins comprising a lower substrate fin portion made of said first semiconductor material and an upper fin portion that is positioned above said lower substrate fin portion, wherein said upper fin portion is made of a second semiconductor material that is different from said first semiconductor material; forming a layer of insulating material adjacent said first and second fins; performing at least one process operation to: performing at least one recess etching process on said layer of insulating material to expose at least a portion of said first and second channel semiconductor materials; forming a gate structure for said PMOS FinFET device around said exposed portion of said first channel semiconductor material; and forming a gate structure for said NMOS FinFET device around said exposed portion of said second channel semiconductor material.