Invention Grant
- Patent Title: Ultraviolet semiconductor sensor device and method of measuring ultraviolet radiation
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Application No.: US14773737Application Date: 2014-03-07
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Publication No.: US09683889B2Publication Date: 2017-06-20
- Inventor: Eugene G. Dierschke , Todd Bishop , Mario Manninger
- Applicant: ams AG
- Applicant Address: AT Unterpremstaetten
- Assignee: AMS AG
- Current Assignee: AMS AG
- Current Assignee Address: AT Unterpremstaetten
- Agency: McDermott Will & Emery LLP
- Priority: EP13162745 20130408
- International Application: PCT/EP2014/054475 WO 20140307
- International Announcement: WO2014/135688 WO 20140912
- Main IPC: G01J1/42
- IPC: G01J1/42 ; G01J1/04 ; H01L31/0232 ; H01L31/09

Abstract:
A photodiode (2) and a further photodiode (3) are arranged in a substrate (1) at or near a main surface (10). The photodiodes are formed and arranged in such a manner that in case of incident ultraviolet radiation (26) the electric signal from the photodiode (2) is larger than the further electric signal from the further photodiode (3). In particular, the first photodiode may be more sensitive to ultraviolet radiation than the further photodiode. The electric signal from the photodiode is attenuated by the further electric signal and thus yields an electric signal primarily measuring the incident ultraviolet radiation. The attenuation of the electric signal from the first photodiode may be achieved internally using an integrated circuit (25) or externally using a separate device.
Public/Granted literature
- US20160025558A1 ULTRAVIOLET SEMICONDUCTOR SENSOR DEVICE AND METHOD OF MEASURING ULTRAVIOLET RADIATION Public/Granted day:2016-01-28
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