The packaging of semiconductor chips.

摘要

In hermetically sealing a package for a semiconductor chip (50) a ceramic receptacle (41) having leads (42) and a metal frame (43) fixed to the ceramic receptacle has a metal lid (44) set inside the metal frame (43) and the metal lid and the metal frame joined by laser welding. By using such a laser welding technique, damage to the chip by overheating can be avoided, while still permitting desirably high productivity.