Patent ID: 8106348
Filing Date: 2012-01-31
Classification: H01L,H04N

Abstract:
1. A method for detecting wavelengths of electromagnetic radiation using a pixel sensor, the method comprising: providing a plurality of electrodes positioned on a surface of a substrate having a well of one of P-type and N-type doping, the electrodes being of opposite doping type as the well; generating hole-electron pairs at a plurality of depths inside the well by applying the electromagnetic radiation to the surface; separating the hole-electron pairs into holes and electrons and accelerating one of the holes and electrons towards the surface by applying an electric field; deviating one of the accelerated holes and electrons towards the electrodes by applying a magnetic field in a direction perpendicular to said electric field; and collecting, at each one of the electrodes, one of the deviated holes and electrons generated at one of the plurality of depths to detect wavelengths of the electromagnetic radiation.