Patent ID: 8518807

Claim:
A method of forming a semiconductor-on-insulator structure comprising: providing a semiconductor-on-insulator substrate including a stack, from bottom to top, of a base substrate, a buried insulator layer, and a top semiconductor active layer, wherein an interface is present between a topmost surface of said buried insulator layer and a bottommost surface of said top semiconductor active layer; forming a least one semiconductor device-containing region comprising at least one semiconductor device formed on and/or within a portion of said top semiconductor active layer; providing at least a stressor layer on an exposed surface of said at least one semiconductor device-containing region, wherein said stressor layer has a fracture toughness that is greater than that of said base substrate; and removing a material base layer from said base substrate by spalling, wherein said material base layer is located on a bottommost surface of said buried insulator layer; and implanting ions into said buried insulator layer though said bottommost surface of the buried insulator layer that is opposite the topmost surface of the buried insulator layer that forms the interface with said top semiconductor active layer to provide a radiation hardened structure comprising said buried insulator layer that includes a doped region and a substantially non-doped region, wherein said substantially non-doped region has a surface in contact with said interface.