Patent ID: 7700379
Filing Date: 2010-04-20
Classification: G01R,H01S

Abstract:
1. A wafer level burn-in method, comprising the steps of: (a) applying electrical and physical contact using a lower contact plate to a substrate surface of a semiconductor wafer; (b) applying electrical and physical contact using an upper contact plate to individual contacts associated with a plurality of vertical cavity surface emitting lasers (VCSELs) borne by said semiconductor wafer; (c) providing electrical power to said VCSELs through said upper and lower contact plates from a power source coupled to said lower and upper contacts plates, wherein the individual contacts in contact with the upper contact plate share a common electrical contact surface of the upper contact plate and the individual contact in contact with the lower contact plate share a common electrical contact surface of the lower contact plate; (d) monitoring and controlling electrical power to said semiconductor devices for a period set forth in accordance with a specified burn-in criteria; (e) removing electrical power upon a completion of said period; and (f) removing electrical and physical contact from said semiconductor wafer.