Lifting glass substrate without center lift pins

摘要

A method for lifting a substrate from a susceptor. A plurality of lift pins is configured so that they support the substrate without contacting a central portion of the substrate. The processed substrate has a first dimension that is at least 500 millimeters and a second dimension that is at least 500 millimeters. Each lift pin in the plurality of lift pins is configured so that it supports the substrate from a point that is at least 120 millimeters from a center of the substrate. The plurality of lift pins is configured so that each side of the susceptor is supported by at least three lift pins. In some embodiments, a support member overlies at least a subset of the plurality of lift pins.