Patent ID: 6804275
Filing Date: 2004-10-12
Classification: H01L,H01S,H05K

Abstract:
A semiconductor laser apparatus comprising;a heat sink made of copper and comprising; a first planar member having first and second faces opposite to each other and having a first groove portion in the first face thereof; a second planar member having first and second faces opposite to each other and having a second groove portion in the second face thereof; a partition having a first surface and a second surface and disposed between the first surface of the first planar member and the second surface of the second planar member, wherein the first groove portion and the second face of the partition define a first space, the second groove portion and the first surface of the partition define a second space, and the partition has a hole for communicating between the first space and the second space; a supply port communicating to the first space for supplying a fluid into the first space; and a discharge port communicating to the second space for discharging a fluid from the second space; a semiconductor laser device having first and second surfaces opposite to each other and mounted on the first face of the second planar member; a first copper plate electrically contacting the first surface of the semiconductor laser device; a second copper plate electrically contacting the second surface of the first planar member such that the semiconductor laser device performs emission by application of a predetermined voltage between the first and second copper plates; a rubber insulating member arranged in a peripheral region of the supply port in the first face of the second planar member and in a peripheral region of the discharge port in the second face of the first planar member, wherein the hole in the partition has a sufficiently small cross-sectional area for injecting fluid into the second space such that when pressurized fluid is supplied from the supply port to the first space, the fluid is injected toward the predetermined area on which the semiconductor laser device is mounted.