Patent ID: 9070730
Filing Date: 2015-06-30
Classification: H01L,Y10S

Abstract:
1. A substrate lifter for lifting a substrate having an outside diameter (OD), and inside diameter (ID), and first and second substrate faces, comprising: first and second ends, and first and second lifter faces; the first end comprising substrate engaging features including first and second recesses, the first recess positioned adjacent the first end of the lifter and configured to engage the substrate ID for lifting the substrate in a vertical direction, the second recess configured to receive the substrate OD for limiting lateral movement of the OD to a predetermined amount; wherein the substrate engaging features are fixedly spaced apart on the first and second lifter faces, respectively, when the first recess engages and the second recess receives the substrate; wherein contact points of the first and second recesses that engage the substrate are oriented toward the first end of the lifter; and wherein the first recess is disposed in a lifter protrusion, the lifter protrusion having a centrally positioned slot for receiving an alignment surface of a substrate holder to align the substrate holder with the substrate.