公开(公告)号：DE68911419T2

公开(公告)日：1994-05-11

申请号：DE68911419

申请日：1989-08-14

Applicant: GEN ELECTRIC CO N D GES D STAA

Inventor： COSTIGAN JACK PATRICK

IPC: B23K9/32 ,  B23K9/00 ,  H01L23/02 ,  H01L23/10

Abstract: A hermetically sealed housing (10) for a solid state device or the like includes a metal header (12) having a mounting surface (14) and a metal cap (20) mounted on the header and over the mounting surface. The cap includes a cup-shaped portion and a flange (24) extending radially outwardly from the rim of the cup-shaped portion. A weld ring (26) projects from a surface of the flange toward the header mounting surface and is welded to the mounting surface (14).A second ring (30) projects from the surface of the flangeand is spaced radially inwardly from the weld ring. The second ring (30) is shorter than the weld ring (26) so that it preferably just contacts the mounting surface of the header. The second ring captures any metal particles (34) splashed from the weld ring during the welding of the cap to the header and thereby minimizes particle induced noise.