Patent ID: 9029750
Filing Date: 2015-05-12
Classification: H01L,H04N

Abstract:
1. A high sensitivity, high speed, and low noise, semiconductor non-destructive read-out device for the conversion of a generated signal charge into an output voltage, the non-destructive read-out device comprising: a semiconductor substrate having a first type of dopant; a semiconductor layer having a low concentration of the first type of dopant and disposed on the semiconductor substrate; a second type of dopant channel formed inside the semiconductor layer for integrating, storing, transporting, and removing the generated signal charge; a MOSFET (formed in said second type dopant channel in the top of the semiconductor layer) having a gate defining an underlying charge sensing potential well, a first type of dopant source, a first type of dopant drain, and a channel between the source to drain with charge flow which senses the generated signal charge in the charge sensing potential well; a feedback amplifier with a gain of G, G being a selectable gain number, having an input connected to the MOSFET source and an output connected to the MOSFET gate; a current generator connected in series with the MOSFET source; a reset gate on top of a dielectric formed on top of the semiconductor layer; a second type of dopant reset drain formed in the top portion of the semiconductor layer; and, whereby in periodic non-destructive read-out device operation the generated signal charge is integrated and sensed in the charge sensing potential well and subsequently removed by being destructively drained from the charge sensing potential well into the reset drain.