Patent ID: 7381624

Claim:
A method, comprising: forming a first crystalline semiconductor layer having a first intrinsic strain characteristic of a first type on and in contact with a second crystalline semiconductor layer having a second intrinsic strain characteristic of a second type differing from said first type, wherein the first and second types each comprise a different one of a compressive type, a tensile type, and a substantially unstrained type; forming an opening in said first crystalline semiconductor layer to expose a portion of said second crystalline semiconductor layer; and epitaxially growing a crystalline semiconductor material in said opening while using said exposed portion of said second crystalline semiconductor layer as a growth template, wherein at least one of said second crystalline semiconductor layer and said epitaxially grown crystalline semiconductor material includes a dopant ion creating a lattice mismatch between said second crystalline semiconductor layer and said epitaxially grown crystalline semiconductor material to induce strain into said epitaxially grown crystalline semiconductor material.