Patent ID: 9024355
Filing Date: 2015-05-05
Classification: H01L

Abstract:
1. A semiconductor structure comprising: a fin-containing semiconductor portion that includes a plurality of semiconductor fins, a first end portion, and a second end portion, each of said plurality of semiconductor fins, said first end portion, and said second end portion comprising a first semiconductor material, wherein each semiconductor fin among said plurality of semiconductor fins extends along a lengthwise direction and is laterally spaced from one another along a widthwise direction perpendicular to said lengthwise direction, and one end of each of said plurality of semiconductor fins is longitudinally adjoined to said first end portion and another end of each of said plurality of semiconductor fins is longitudinally adjoined to said second end portion, wherein each of said first end portion and said second end portion includes a proximal portion having a topmost surface that has a same height as a topmost surface of each of said plurality of semiconductor fins, and includes a distal portion having a topmost surface that has a lesser height than said topmost surface of each of said plurality of semiconductor fins, said proximal portion of each of said first end portion and said second end portion adjacent to said plurality of semiconductor fins; a first stress-generating semiconductor portion in contact with said distal portion of said first end portion and an outer sidewall of said proximal portion of said first end portion and comprising a second semiconductor material having a different lattice constant than said first semiconductor material and epitaxially aligned to said first end portion; and a second stress-generating semiconductor portion in contact with said distal portion of said second end portion and an outer sidewall of said proximal portion of said second end portion and comprising said second semiconductor material and epitaxially aligned to said second end portion.