Patent ID: 6033995
Filing Date: 2000-03-07
Classification: H01L

Abstract:
A method for integrating indium epitaxial device layers with substrates where the resulting semiconductor device has a first device epilayer bonded to a host substrate and a second device epilayer which resides on the first device epilayer, said method comprising the steps of:depositing a thin etch-stop layer on an indium phosphide growth substrate;after depositing, growing an indium phosphide second device epilayer on the etch-stop layer;after growing the second device epilayer, growing an indium phosphide first device epilayer on the second device epilayer;after the first device epilayer growth step, joining the device epilayers and the growth substrate to an aluminum nitride host substrate by bonding the first device epilayer to a surface of the host substrate; andselectively etching the device epilayers from the growth substrate.