Circuit-integrating light-receiving element
US6114740A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/957
Abstract
The circuit-integrating light-receiving element of this invention includes: a semiconductor substrate of a first conductivity type; a first semiconductor layer of a second conductivity type formed over the semiconductor substrate; a first semiconductor layer of the first conductivity type for dividing the first semiconductor layer into semiconductor regions of the second conductivity type; light-detecting sections being constituted by the divided semiconductor regions and underlying regions of the semiconductor substrate, a divided photodiode being composed of the light-detecting sections; a second semiconductor layer of the second conductivity type formed only in the vicinity of the first semiconductor layer of the first conductivity type functioning as a division section of the divided photodiode and within the regions of the semiconductor substrate forming the respective light-detecting sections; and a second semiconductor layer of the first conductivity type formed in a surface region of the first semiconductor layer of the second conductivity type including the division section so as to cover an upper part of the second semiconductor layer of the second conductivity type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.