Optical semiconductor device, optical transmitter module, optical module, and optical transmission equipment, and method for manufacturing thereof
US10700489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2018 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Jul 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is an optical semiconductor device including a semiconductor substrate; a first semiconductor multilayer that is stacked on a first surface side of the semiconductor substrate, has a mesa structure extending along a light emitting direction, and emits light from an exit end surface; an electrode pad portion for wire bonding which is electrically connected to the upper surface of the mesa structure of the first semiconductor multilayer, is disposed on one side of the mesa structure, and is electrically connected to outside; and an electrode pad peripheral portion including a first rising surface which is in contact with the outer edge of the electrode pad portion on the exit end surface side and rises along the stacking direction from the electrode pad portion, in which a lower surface of the electrode pad portion is higher than the upper surface of the mesa structure of the first semiconductor multilayer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.