Detector for electromagnetic radiation assisted by majority...

Details Detector for electromagnetic radiation assisted by majority... Detector for electromagnetic radiation assisted by majority...

2006-01-17

2006-01-17

Porta, David (Department: 2878)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

Reexamination Certificate

active

06987268

ABSTRACT:
The present invention relates to a novel photo-detector structure and method whereby light is detected in a semiconductor substrate. Through the use of a small current of majority carriers an electrical field is created that directs photo-generated minority carriers towards a detection region. In this way, a large sensitive area34for a detector can be designed with a detection region having low junction area and low associated detector capacitance, thus enhancing output signal to noise ratio and/or speed of attached readout circuits. Simultaneously, the assistant majority current can sweep the minority carriers from deep within the substrate towards the detection region, thus improving the overall detector sensitivity. By making the majority current reconfigurable, a photonic mixer structure with two or more detection regions can be conceived, whereby the direction of the applied current will determine in an efficient way to which detection region the photo-generated minority carriers will be directed. In this way, incident modulated light can get demodulated, such that phase and amplitude of the modulated light can be measured for a.o. range-finding applications.

REFERENCES:
patent: 4074302 (1978-02-01), Brewer
patent: 6157035 (2000-12-01), Kuijk
patent: 6515903 (2003-02-01), Le et al.
patent: 2002/0140045 (2002-10-01), Lauter et al.
patent: 0883187 (1998-12-01), None
patent: WO-98/10255 (1998-03-01), None
patent: WO-99/60629 (1999-11-01), None
patent: WO 02/33817 (2002-04-01), None

Affiliated with

Also associated with

Rating

Detector for electromagnetic radiation assisted by majority... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detector for electromagnetic radiation assisted by majority..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detector for electromagnetic radiation assisted by majority... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3552041