Patent ID: 7878562
Filing Date: 2011-02-01
Classification: H01L,Y10S

Abstract:
1. A carrier blade for transferring a semiconductor wafer into and out of a deposition chamber and having top and bottom surfaces and a longitudinal axis extending between opposite mounting and free ends, the carrier blade comprising: a support region for supporting a semiconductor wafer, said support region having mounting and free end margins spaced from one another along the longitudinal axis and a lower surface extending between the mounting and free end margins; an engagement portion at the support region including a ledge surface at each of the mounting and free end margins of the support region for engaging and supporting the wafer, the ledge surfaces lying generally in a support plane disposed below the top surface of the blade; transition surfaces sloping downward from the ledge surfaces toward the lower surface of the support region, each of the transition surfaces sloping downward from the corresponding ledge surface at an angle measuring greater than 90 degrees.