Patent ID: 8053331

Claim:
A process for transferring a semiconductor film to a polymer substrate to make a flexible semiconductor material comprising the steps of: implanting ions to a predetermined depth in at least one semiconductor substrate to create a separation zone within the at least one semiconductor substrate, the separation zone defining a first part and a second part of the at least one semiconductor substrate; heat-treating the at least one ion-implanted semiconductor substrate for a period of time and at a temperature effective to cause defect formation in the region of the implanted ions without separating the first part of the at least one semiconductor substrate from the second part of the at least one semiconductor substrate; cooling the at least one ion-implanted semiconductor substrate; preheating at least one polymer substrate to a bonding temperature of about plus or minus 100° C. of the glass transition temperature of the polymer substrate; contacting the first part of the at least one ion-implanted, heat-treated and cooled semiconductor substrate to the at least one preheated polymer substrate while heating only the at least one polymer substrate during the contacting step to maintain the preheated substrate at the bonding temperature, while the at least one ion-implanted substrate remains unheated other than by heat from the preheated polymer substrate, thereby (a) adhering the first part of the at least one ion-implanted, heat-treated semiconductor substrate to at least one polymer substrate and (b) separating the first part of the at least one semiconductor substrate from the second part of the at least one semiconductor substrate along the separation zone, whereby the second part of the at least one semiconductor wafer forms a semiconductor film bonded to the at least one polymer substrate.