Bulk crystalline silicon wafers are transferred after the completion of circuit fabrication to form thin films of crystalline circuitry on almost any support, such as metal, semiconductor, plastic, polymer, glass, wood, and paper. In particular, this technique is suitable to form silicon-on-insulator...http://www.google.com.tw/patents/US5674758?utm_source=gb-gplus-share專利 US5674758 - Silicon on insulator achieved using electrochemical etching
