Patent ID: 6680478
Filing Date: 2004-01-20
Classification: H01L

Abstract:
A rollorphous silicon/amorphous silicon-germanium NI1PI2N two dimensional position detector, comprising:a front diode of NI1P that absorbs visible light; and a rear diode of PI2N that absorbs infrared light; the N material being selected from a group consisting of phosphorus-doped hydrogenated amorphous silicon and hydrogenated amorphous silicon germanium alloy; the P material being selected from a group consisting of boron-doped hydrogenated amorphous silicon and hydrogenated amorphous silicon-germanium alloy; the I1 material being selected from a group consisting of undoped hydrogenated amorphous silicon and hydrogenated amorphous silicon-germanium alloy; the I2 material being selected from a group consisting of undoped hydrogenated amorphous silicon-germanium alloy and hydrogenated amorphous germanium.