Patent ID: 8803195
Filing Date: 2014-08-12
Classification: C30B,H01L

Abstract:
1. A heterogeneous nanomembrane structure comprising: (a) a multilayer film comprising a single-crystalline layer of compressively strained semiconductor sandwiched between, and in direct contact with, a first single-crystalline layer of tensilely strained semiconductor and a second single-crystalline layer of tensilely strained semiconductor, wherein a plurality of holes extend into the multilayer film, through the first single-crystalline layer of tensilely strained semiconductor, through the single-crystalline layer of compressively strained semiconductor and then through the second single-crystalline layer of tensilely strained semiconductor; and (b) a filler semiconductor at least partially filling the plurality of holes in the multilayer film, wherein the filler semiconductor differs from the tensilely strained semiconductor in material composition, crystalline orientation, strain state, or a combination thereof.