An apparatus and method of transferring and loading a reticle onto a
receiving station (for example, a reticle exposure stage). The reticle is
first retrieved from a storage facility with an end effector having a
reticle plate coupled to a mounting plate. The mounting plate connects
the end effector to a robotic arm. The reticle is aligned in an
out-of-plane position in an off-line alignment station. The alignment is
in compliance with the alignment requirement at the receiving station.
The reticle is mounted onto the reticle plate after undergoing the
alignment at the off-line alignment station. The reticle is then
transferred from the off-line alignment station to the receiving station
while maintaining the previous alignment at the off-line alignment
station. The apparatus further provides rigidity of the mounted reticle
to ensure compliance with the alignment requirement at the receiving
station.