Patent ID: 11946879
Assignee: TOKYO INSTITUTE OF TECHNOLOGY AND
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 34:
35. A sensor system, comprising:
an integrated circuit having a PIN diode formed of a wide band semiconductor that has a band gap of 2.2 eV or more, having a P-type semiconductor (P), an N-type semiconductor (N), and a thin film that is a semiconductor (I) provided between the P-type semiconductor and the N-type semiconductor and having a lower impurity concentration than those of the P-type semiconductor and the N-type semiconductor, and in which a crystal includes a composite defect of an impurity atom and a vacancy;
a microwave generator configured to generate a microwave to irradiate the thin film;
an excitation driver configured to drive to excite the thin film; and
a detector configured to detect a change in conductivity of the thin film based on excitation when transitioning from an excited state to a ground state,
wherein the integrated circuit includes a microwave irradiation system configured to irradiate the thin film with the microwave, an excitation unit configured to excite the thin film, and a circuit configured to detect, as an electric signal, the change in conductivity of the thin film based on excitation when transitioning from an excited state to a ground state.