| 摘要 |
PROBLEM TO BE SOLVED: To improve the heat radiating property of a package for an optical semiconductor. SOLUTION: In the package of the optical semiconductor, a supporting body 16 is electrically insulated from a lead plate 12 by an insulating material 13 while the lead plate 12 and the insulating material 13 form a hierarchical structure and lead plates for every stages are independent. The lead plate is constituted of Fe or a material whose principal constituent is Fe. COPYRIGHT: (C)2004,JPO
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