Methods for forming semiconductor lenses on substrates
US6627469B2 · kind B2 · utility
2Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Apr 10, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/819
Abstract
A lens is formed out of semiconductor material. The semiconductor produces light which is coupled to the lens. The lens focuses the light and also minimizes refractive reflection. The lens is formed by a graded aluminum alloy, which is oxidized in a lateral direction. The oxidation changes the effective shape of the device according to the grading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.