DEVICE FOR DETECTING CHEMICAL/PHYSICAL PHENOMENON

摘要

Proposed is a device for detecting a chemical/physical phenomenon, in which, via a novel scheme, an electrical charge accumulates in a charge accumulation region in an amount that reflects the potential of a sensing region produced by an external environment (chemical phenomenon or physical phenomenon) to be detected. A charge accumulation region 5 includes a first potential well region FD1 that is continuous with a sensing region 3, the boundary potential of the electrical charge held in the first potential well region FD1 being made equal to the potential of the sensing region 3, whereby the potential of the sensing region 3 is made to reflect the amount of the electrical charge held in the first potential well region FD1.