| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical semiconductor device having a translucent lid and an insulating substrate that are firmly bonded with each other and superior air tightness of a hermetic space storing an optical semiconductor element, and capable of allowing the semiconductor element to receive outside light normally without causing distortion over a long period of time with high reliability. SOLUTION: An optical semiconductor device 9 is provided with: an insulating substrate 1 having a recessed portion 1a for storing and mounting an optical semiconductor element 3 in an upper surface; a wiring conductor 2 led outside from the inside of the recessed portion 1a of the insulating substrate 1; the optical semiconductor element 3 that is mounted on the bottom surface of the recessed portion 1a of the insulating substrate 1 and having an electrode 4 connected with the wiring conductor 2 electrically; and a translucent lid 5 fitted onto the upper surface of the insulating substrate 1 through a bonding material 7 in such a manner as to close the recessed portion 1a. In the translucent lid 5, a groove 5a is formed at a location right above the inner surface of the recessed portion 1a of the lower surface, and the bonding material 7 enters the inside of the groove 5a. COPYRIGHT: (C)2005,JPO&NCIPI
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