Patent ID: 7655537

Claim:
A method of fabricating composite substrates of semiconductor materials for use in optics, electronics, or optoelectronics which comprises: associating a transfer layer with an intermediate support to form an intermediate substrate of predetermined thickness with the transfer layer having a free surface; providing a sample carrier having a surface and a recess that has a depth that is approximate the same as the predetermined thickness of the intermediate substrate so that the transfer layer free surface is positioned flush with the sample carrier surface; providing a plurality of intermediate substrates and sample carrier recesses; providing each intermediate substrate in a carrier recess so that each transfer layer free surface is positioned flush with the sample carrier surface; providing a support layer both on each transfer layer free surface and on a portion of the sample carrier surface surrounding each recess; removing the portions of the support layer that extend beyond each intermediate substrate; and detaching each transfer layer and support layer from its intermediate support to form the composite substrates.