Package and method of manufacturing the same

摘要

The present invention provides a package whose heat dissipation performance by a semiconductor device has been improved, which synchronizes with the rapid development of high transmission density in multiplex communications. In place of the conventional package substrate, a substrate formed by a combination of two or more kinds of materials is used, whereby the temperature of a portion at which the temperature tends to rise to become extremely high within the package is selectively dissipated, whereby the heat dissipation performance of the package is efficiently improved. A diamond coated substrate or diamond substrate is used at a portion with an extremely high temperature for dissipating the heat.