Optical cap for semiconductor device
US6984849B2 · kind B2 · utility
2Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2004 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Apr 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02212
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical cap for semiconductor device, the cap comprising: a metal cap body having an opening and a transparent optical window sealed with the metal cap body to cover the opening by means of a sealing member. The sealing member includes a bismuth low-melting point glass containing no lead, an intermediate metal layer attached to the metal cap body, the intermediate metal layer being a metal capable of causing a eutectic reaction with respect to Bi contained in the low-melting point glass, and an eutectic alloy layer thus formed between the low-melting point glass and the intermediate metal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.