SEMICONDUCTOR DEVICES

摘要

A multijunction, multilayer semiconductor device is formed by alloying the surface of a body of semiconductor material with a material which contains an impurity and includes gaps or perforations therein so that an emitter zone is formed in the body which includes corresponding perforations therein into which project or extend portions of the zone adjacent the emitter zone. The exposed surfaces of the adjacent zones which project into the emitter zone are abraded.