Patent ID: 6242694
Filing Date: 2001-06-05
Classification: H01L,H05K

Abstract:
A package for housing a photosemiconductor device, said package comprising:a plurality of united-inner/outer-portions type leads each of which has an inner lead portion and an outer lead portion continuously formed into one body;a base plate composed of a metal material;four side walls composed of a metal material, said four side walls surrounding a photosemiconductor device, said four side walls being respectively and directly joined with said base plate, one of said four side walls having therein an opening for introducing the inner lead portions of said plurality of united-inner/outer-portions type leads into the inside of said side walls; anda ceramic plate which has a side face for stopping up the opening of said side wall, said ceramic plate having a plurality of through holes on said side face for inserting the inner lead portions of said plurality of united-inner/outer-portions type leads therethrough, said ceramic plate being joined with a peripheral portion of the opening of said side wall so that said side face stops up the opening of said side wall.