Patent ID: 8622451
Filing Date: 2014-01-07
Classification: H01L,Y10S

Abstract:
1. An endeffector for handling semiconductor wafers comprising: a base member having a proximal end and as distal end; a plurality of support members located on the base member for contacting and supporting a wafer placed on the endeffector, the support members being configured to only contact an edge of as semiconductor wafer, the support members defining a wafer receiving area therebetween, the support members having an arcuate shape that generally matches a radius of a semiconductor wafer, each support member having a top surface, a bottom surface adjacent to the base member, and a curved wafer contact surface extending between the top surface and the bottom surface, wherein the curved wafer contact surface tapers from a maximum radius at the top surface to a minimum radius at the bottom surface, the difference between the maximum radius and the minimum radius being at least about 0.75 nm.