A silicon chip is attached to a planar light circuit. A recessed moat is formed around an output perimeter of a surface of the silicon chip. When soldering the silicon chip to the planar light circuit, the recessed moat is filled with solder.
This is a Divisional of application Ser. No. 10/639,320, filed on Aug. 12, 2003 now U.S. Pat. No. 7,039,273, the entire disclosure of which is incorporated herein by reference.
