Jj. Callahan et al., ALIGNABLE LIFTOFF TRANSFER OF DEVICE ARRAYS VIA A SINGLE POLYMERIC CARRIER MEMBRANE, Electronics Letters, 29(11), 1993, pp. 951-953
The Letter reports epitaxial liftoff and direct bonding of GaAs/AlxGa1
-xAs heterostructure device arrays and continuous films, using a singl
e transparent polymer membrane to support the material during etch of
the sacrificial layer and to manipulate it into position for bonding.
Au-Sn eutectic alloy bonding leads to a metallurgical bond in minutes.
Photoluminescence and current voltage characteristics show that mater
ial quality is not substantially degraded in the transfer process.