Patent ID: 7662650
Filing Date: 2010-02-16
Classification: G01R,H01S

Abstract:
1. A method for providing photonic flow control over VCSEL devices borne by a semiconductor wafer having a substrate, at least one active component layer and a surface layer during burn-in, comprising the step of: forming at least one trench into said semiconductor wafer, thereby defining nonconductive regions and further defining boundaries between active component regions thereby separated by said at least one trench; performing a burn-in for a plurality of the devices borne in the semiconductor wafer at the same time using a first contact plate connected to a first side of the semiconductor wafer and a second contact plate connected to a second side of the semiconductor wafer, the surfaces of the first and second contact plates clamping the semiconductor wafer, wherein during the burn-in, the first and second contact plates are each provide a single common electrical contact to all devices that are borne in the semiconductor wafer and undergo the burn-in process; and wherein the at least one trench provides photonic flow control during the burn-in.