Patent ID: 8585115

Claim:
A substrate lifter for removing a horizontally oriented substrate having an inside diameter (ID) and an outside diameter (OD) from a substrate cassette, the substrate lifter comprising: an engagement end for engaging the substrate and an adjustment end for engaging an adjustment assembly; the engagement end comprising: a recess having first and second arcuate sidewalls configured to engage the OD of the substrate, each of the first and second arcuate sidewalls having an angled side surface, and a circular protrusion having an angled protrusion sidewall positioned between the first and second arcuate sidewalls, the circular protrusion configured to at least partially extend into a circular opening of the substrate defined by the ID of the substrate, wherein the engagement end is configured to engage the substrate in a first position in which the OD of the substrate engages the first and second arcuate sidewalls and the ID of the substrate is offset from the angled protrusion sidewall by a gap; and wherein the engagement end is further configured to engage the substrate in a second position in which the OD of the substrate engages the first and second arcuate sidewalls, and a portion of the ID of the substrate engages the protrusion sidewall.