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 an 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.