摘要 |
A strained-silicon film is disclosed. A silicon-germanium film is made by ion implantation of germanium into an epitaxial silicon layer, preferably at a temperature in the range of 200 C to 400 C. The wafer is annealed in situ or optionally after implantation. A silicon film is applied to the silicon-germanium film in a conventional manner to create the strained-silicon substrate.
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