Cap member and semiconductor device employing same
First Claim
1. A semiconductor device, comprising:
- a semiconductor chip;
a support base on which the semiconductor chip is mounted; and
a cap member fixed on the support base so as to cover the semiconductor chip, the cap member including,a cylindrical side wall portion,a top face portion closing one end of the side wall portion and having an opening formed in a predetermined region therein,a light-transmissive window member fitted to the top face portion so as to stop the opening, anda fitting portion arranged at another end of the side wall portion and fixed on a support base on which a semiconductor chip is mounted,wherein at least one of the side wall portion and the top face portion has grooves formed in both of inner and outer surfaces thereof, the grooves forming a part, less thick than another part, of the at least one of the side wall portion and the top face portion.
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0 Petitions
Accused Products
Abstract
A cap member capable of alleviating degradation of reliability and improving fabrication yields is provided. The cap member has a cylindrical side wall portion, a top face portion closing one end of the side wall portion and having a light exit hole formed therein to allow extraction of laser light from a semiconductor laser chip; a light transmission window fitted to the top face portion to stop the light exit hole, and a flange portion arranged at the other end of the side wall portion and welded on the upper face of a stem on which the semiconductor laser chip is mounted. A groove portion is formed in an inner surface of the top face portion, and this groove portion makes part of the top face portion in a predetermined region less thick than the other part thereof.
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Citations
15 Claims
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1. A semiconductor device, comprising:
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a semiconductor chip; a support base on which the semiconductor chip is mounted; and a cap member fixed on the support base so as to cover the semiconductor chip, the cap member including, a cylindrical side wall portion, a top face portion closing one end of the side wall portion and having an opening formed in a predetermined region therein, a light-transmissive window member fitted to the top face portion so as to stop the opening, and a fitting portion arranged at another end of the side wall portion and fixed on a support base on which a semiconductor chip is mounted, wherein at least one of the side wall portion and the top face portion has grooves formed in both of inner and outer surfaces thereof, the grooves forming a part, less thick than another part, of the at least one of the side wall portion and the top face portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification