Patent ID: 7501318

Claim:
A method of producing a substantially relaxed, high-quality SiGe-on-insulator substrate material comprising: implanting ions into a bulk Si-containing substrate to form an ion implant rich region, said ion implant rich region having a surface layer of the Si-containing substrate located thereon; forming a Ge-containing layer directly on and entirely across said surface layer of said bulk Si-containing substrate containing said ion implant rich region; and performing a single heating step on the Ge-containing layer and the bulk Si-containing substrate containing said ion implant rich region at a temperature which (i) converts said ion implant rich region into a diffusion barrier layer, and (ii) interdiffuses Ge throughout said Ge-containing layer and said surface layer of the bulk Si-containing substrate located above the ion implant rich region thereby forming a substantially relaxed SiGe layer atop said diffusion barrier layer.