| http://www.w3.org/ns/prov#value | - The present embodiment is an embodiment in which a substrate having a non-porous single-crystal layer on a porous silicon layer is produced in the same manner as in Embodiments 1 to 3 and thereafter bonded to an additional substrate and the porous silicon layer is removed while leaving the non-porous single-crystal silicon layer on the additional substrate to produce a composite substrate.
|
