Invention Grant
- Patent Title: Photo detector device having multiple photosensitive transistors
- Patent Title (中): 具有多个感光晶体管的光电检测装置
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Application No.: US12406337Application Date: 2009-03-18
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Publication No.: US07935917B2Publication Date: 2011-05-03
- Inventor: Sen-Shyong Fann
- Applicant: Sen-Shyong Fann
- Applicant Address: TW Hsinchu
- Assignee: Integrated Digital Technologies, Inc.
- Current Assignee: Integrated Digital Technologies, Inc.
- Current Assignee Address: TW Hsinchu
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Priority: TW94135169A 20051007
- Main IPC: H01L27/00
- IPC: H01L27/00 ; G05D25/02

Abstract:
A photo detector device includes a photosensitive transistor capable of detecting an optical signal including an image component and a background component and converting the optical signal into a current including an image current corresponding to the image component and a background current corresponding to the background component, a first amplifier module electrically connected to the photosensitive transistor capable of canceling the background current and amplifying the image current, and a second amplifier module electrically connected to the first amplifier module capable of detecting a direct-current (dc) portion of the image current.
Public/Granted literature
- US20090179243A1 PHOTO DETECTOR ARRAY Public/Granted day:2009-07-16
Information query
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