Invention Grant
US07755189B2 Metal cap with ringed projection to be welded to stem and ringed groove provided immediately inside of ringed projection and optical device having the same
有权
具有环形突起的金属盖被焊接到立即在环形突起内部设置的杆和环形槽以及具有其的光学装置
- Patent Title: Metal cap with ringed projection to be welded to stem and ringed groove provided immediately inside of ringed projection and optical device having the same
- Patent Title (中): 具有环形突起的金属盖被焊接到立即在环形突起内部设置的杆和环形槽以及具有其的光学装置
-
Application No.: US12508119Application Date: 2009-07-23
-
Publication No.: US07755189B2Publication Date: 2010-07-13
- Inventor: Naoki Nishiyama
- Applicant: Naoki Nishiyama
- Applicant Address: JP Osaka-shi
- Assignee: Sumitomo Electric Industries, Ltd
- Current Assignee: Sumitomo Electric Industries, Ltd
- Current Assignee Address: JP Osaka-shi
- Agency: Venable LLP
- Agent Michael A. Sartori, Ph.D.
- Priority: JP2008-194827 20080729
- Main IPC: H01L31/0203
- IPC: H01L31/0203
Abstract:
An optical device with a CAN package is disclosed, where the cap is resistance-welded to the stem without causing failures due to fragments by the welding flying within the package. The cap of the invention has a flange portion to be welded to the stem. The flange portion provides a ringed groove in addition to the ringed projection for the welding. The fragment due to the welding may be captured in the ringed groove and is prevented from flying within the package. The ringed groove and the ringed projection are simultaneously formed in the stamping to form the body portion of the cap.
Public/Granted literature
Information query
IPC分类:
