Patent ID: 9437683
Filing Date: 2016-09-06
CPC Classification: H01L

Claim Text:
1. A fin-like field-effect transistor (FinFET) device comprising: a substrate having a fin-like field-effect transistor (FET) region; first source/drain (S/D) regions, separated by a first gate region in the FET region; a first high-k/metal gate (HK/MG) in the first gate region, including wrapping over an upper portion of a first fin structure, the first fin structure including: an epitaxial silicon (Si) layer as its upper portion; an epitaxial growth silicon germanium (SiGe), with a silicon germanium oxide (SiGeO) feature at its outer layer, as its middle portion; and the substrate as its bottom portion; and a first S/D feature on top of the first fin structure, having a recessed Si layer, in the first S/D region, the first S/D feature including: a Si:C layer as its lower portion; and a Si:P layer as its upper portion.