Patent ID: 6852652

Claim:
A method of forming a silicon-germanium layer on an insulator, comprising: preparing a silicon substrate; depositing a layer of silicon-germanium on the silicon substrate to form a silicon/silicon-germanium portion; implanting hydrogen ions in the silicon-germanium layer, including implanting hydrogen ions taken from the group of hydrogen ions consisting of H + ions and H 2 + ions, at an ion dose of between about 1-10 16 cm −2 and 5-10 17 cm −2 at an energy of between about 1 keV to 300 keV; preparing an insulator substrate; bonding the silicon/silicon-germanium portion to the insulator substrate with the silicon-germanium layer in contact with the insulator substrate to form a bonded entity; curing the bonded entity; and thermally annealing the bonded entity to split the bonded entity into a silicon/silicon-germanium portion and a silicon-germanium-on-insulator portion and to relax the silicon germanium layers.