Invention Application
- Patent Title: LOW NOISE InGaAs PHOTODIODE ARRAY
- Patent Title (中): 低噪声InGaAs光电图阵列
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Application No.: PCT/US2014/057481Application Date: 2014-09-25
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Publication No.: WO2015048304A2Publication Date: 2015-04-02
- Inventor: ETTENBERG, Martin, H.
- Applicant: PRINCETON INFRARED TECHNOLOGIES, INC.
- Applicant Address: 7 Deer Park Drive, Suite C2 Monmouth Junction, NJ 08852 US
- Assignee: PRINCETON INFRARED TECHNOLOGIES, INC.
- Current Assignee: PRINCETON INFRARED TECHNOLOGIES, INC.
- Current Assignee Address: 7 Deer Park Drive, Suite C2 Monmouth Junction, NJ 08852 US
- Agency: MILLER, Ryan, N. et al.
- Priority: US61/882,385 20130925
- Main IPC: G01N21/359
- IPC: G01N21/359
Abstract:
A photodiode pixel structure for imaging short wave infrared (SWIR) and visible light built in a planar structure and may be used for one dimensional and two dimensional photodiode arrays. The photodiode arrays may be hybridized to a read out integrated circuit (ROIC), for example, a silicon complementary metal-oxide-semiconductor (CMOS) circuit. The photodiode in each pixel is buried under the surface and does not directly contact the ROIC amplification circuit. Charge is transferred form the detector using a junction field effect transistor (JFET) in each pixel. Disconnecting the photodiode from the ROIC amplification circuit enables low dark current as well as double correlated sampling in the pixel.
Information query
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