OPTICAL COMMUNICATION MODULE PACKAGE

摘要

PROBLEM TO BE SOLVED: To provide a package which does not deteriorate sealing property and optical coupling even if a material of a large thermal conductivity is used for a bottom plate because of the requirement for a large heat radiation property for the package, resulting in the use of materials having a large difference in a coefficient of linear expansion for the bottom plate and side plates. SOLUTION: The bottom plate 2 and the side plates 1 of the package are formed in a joint part with tenons 3. The bottom plate 2 and the side pleats 1 are joined to each other by engaging these tenons 3. The width of each tenon 3 is preferably between 1 mm and 5 mm.