Patent ID: 9209278
Filing Date: 2015-12-08
Classification: H01L

Abstract:
1. A method for fabricating a fin field effect transistor (finFET) with a fin having a source region, a drain region, and a channel region between the source and drain regions, the method comprising: etching a semiconductor substrate to form a semiconductor body on the semiconductor substrate and cavities on opposite sides of the semiconductor body; growing epitaxial semiconductor on opposite sides of the semiconductor body to at least partially fill the cavities; forming a fin having a source region, a drain region, and a channel region by etching the semiconductor body and the grown epitaxial semiconductor, wherein a long dimension of the semiconductor body prior to forming the fin is greater than a width of the fin; and forming a gate stack on the channel region, the gate stack having an insulating layer disposed on the channel region, and a gate material disposed on the insulating layer.