Patent ID: 7928017

Claim:
A method of forming a nanowire comprising: forming a stacked structure by sequentially stacking an insulating layer, a Si layer, and a Si x Ge 1-x layer (where x is a real number that satisfies 0<x<1); performing a first condensing process to condense Ge from the Si x Ge 1-x layer into the Si layer, the first condensing process including a first oxidation process, the first oxidation process performed on the Si x Ge 1-x layer to transform the Si layer into a Si y Ge 1-y layer (where, y is a real number that satisfies 0≦y<1); forming a patterned Si y Ge 1-y layer by patterning the Si y Ge 1-y layer; and performing a second condensing process to condense Ge present in the outer region of the Si y Ge 1-y layer into the inner region of the Si y Ge 1-y layer, the second condensing process including a second oxidation process, the second oxidation process performed on the patterned Si y Ge 1-y layer to form a first oxide layer and at least one nanowire within the first oxide layer.