Patent ID: 6512544
Filing Date: 2003-01-28
Classification: H01L,H04N

Abstract:
A pixel sensor disposed on a semiconductor substrate comprising:a MOS capacitive element having a gate terminal coupled to a voltage source and a diffusion terminal; a photodiode having a first terminal coupled to a first potential and a second terminal coupled to said diffusion terminal of said MOS capacitive element; a semiconductor reset switch having a first terminal coupled to said second terminal of the photodiode and a second terminal coupled to a reset potential that reverse biases said photodiode; a semiconductor transfer switch having a first terminal coupled to said second terminal of said photodiode and a second terminal; a semiconductor amplifier having an input coupled to said second terminal of said semiconductor transfer switch and an output; said semiconductor reset switch and said semiconductor transfer switch each having a control element coupled to a control circuit for selectively activating said semiconductor reset switch and said semiconductor transfer switch.