Lead frame, method of making the same and light receiving/emitting device
US7888697B2 · kind B2 · utility
3Cited by
11References
21Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 2, 2008 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Dec 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3025
Abstract
A lead frame includes a base material, a reflection layer formed on a part of the base material, and a characteristic sustaining layer formed at least on the reflection layer to cover the reflection layer for sustaining a characteristic of the reflection layer by isolating the reflection layer from an outside. The reflection layer includes the characteristic to exhibit a predetermined reflectivity to light with a predetermined wavelength, and the characteristic sustaining layer prevents a decrease in the reflectivity of the reflection layer and transmits light reflected by the reflection layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.