Photoconductive detector arranged for bias field concentration a

Details Photoconductive detector arranged for bias field concentration a Photoconductive detector arranged for bias field concentration a

1985-12-16

1990-05-15

Mintel, William

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

357 55, 357 68, 250334, 25037001, H01L 2714

Patent

active

049262289

ABSTRACT:
A detector, of photosensitive semiconductor material with input and output bias contacts. To improve both frequency response and spatial resolution, minority carriers having tendency to accumulate in the vicinity of the output bias contact are instead rapidly swept out, being driven towards this contact by a concentrated electric field. To produce a local field concentration, the output bias contact may be extended towards the input bias contact, or the detector material near this contact may be configured by slotting or tapering.

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