Patent ID: 8680630
Filing Date: 2014-03-25
Classification: G01N,H01L

Abstract:
1. A CMOS (Complementary Metal Oxide Semiconductor) pixel for sensing at least one stimulus selected from a biological, chemical, ionic, electrical, mechanical and magnetic stimulus, comprising: a substrate including a backside; a source coupled with the substrate to generate a background current; a first diode, and a detection system electrically coupled with the substrate to measure an effect of the background current; at least one charge sensitive layer having an electrical charge and that is coupled with the backside, wherein the at least one charge sensitive layer is operable to interact with an analyte that is exposed to the backside, and wherein the interaction of the electrical charge layer with the analyte provides a non-light emitting stimulus that alters the electrical charge of the at least one charge sensitive layer and affects a measurable change in an effect of the background current.