Patent ID: 9219112
Filing Date: 2015-12-22
Classification: H01L,Y02E

Abstract:
1. A structure comprising: a substrate comprising a first crystalline material, the first crystalline material comprising a first dopant type; and a second crystalline material disposed at least partially in an opening defined by non-crystalline sidewalls to the substrate, the second crystalline material being lattice mismatched with the first crystalline material, a first portion of the second crystalline material being over and adjoining the first crystalline material, the first portion of the second crystalline material comprising the first dopant type, a majority of dislocations in the second crystalline material arising from the lattice mismatch terminating in the first portion of the second crystalline material at the non-crystalline sidewalls, a second portion of the second crystalline material being over the first portion of the second crystalline material, the second portion of the second crystalline material comprising a second dopant type that is opposite from the first dopant type, a third portion of the second crystalline material being disposed between the first portion and the second portion, the third portion being intrinsic.