| 摘要 |
PROBLEM TO BE SOLVED: To restrain misalignment of an optical axis by effectively restraining deformation of a base and a frame body produced in a manufacturing process of a package for storing an optical semiconductor element, deformation of a base and a frame body produced in screwing of an optical semiconductor device to an external electric circuit board or the like, and high temperature of a package for storing an optical semiconductor element caused by heat of an electronic cooling element. SOLUTION: In a package for storing an optical semiconductor element, a cut-out portion 2c passing through inside and outside is formed in a lower end of a side of a frame body 2 wherein a fixing part 2b for fitting an input/ output terminal 4 is formed. A 1-3 mm-thick reinforcing member 5 of Young's modulus of 3.4×10<SP>5</SP>N/mm<SP>2</SP>or more is fit to the cut-out portion 2c. COPYRIGHT: (C)2003,JPO
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