Photodiode array

Details Photodiode array Photodiode array

1997-10-16

1999-07-27

Jackson, Jr., Jerome

Active solid-state devices (e.g., transistors, solid-state diode

Responsive to non-electrical signal

Electromagnetic or particle radiation

257446, 257544, 25037009, 25037014, H01L 31115, H01L 31103, H01L 27146, G01T 124

Patent

active

059294990

ABSTRACT:
In a photodiode array suitable for use in an x-ray detector for computed tomography, the influences of direct conversion of x-rays into contributions to the electrical output signal and optical cross-talk between channels in the photodiode array are significantly reduced by integrating a number of extraction diodes into the photodiode array, with one extraction diode disposed between each two neighboring photodiodes. The anodes of all of the extraction diodes are connected together at a common anode contact, the common anode contact being connected to a voltage source which applies a voltage across all of the extraction diodes for operating the extraction diodes reverse biased, i.e. so as to block current flow.

REFERENCES:
patent: 4903103 (1990-02-01), Yamashita et al.
patent: 4914301 (1990-04-01), Akai

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