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

Claim 13:
14. An integrated circuit, comprising:
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 irradiation system configured to irradiate the thin film with a microwave;
an excitation unit configured to excite the thin film; and
a detector configured to detect at least either one of an intensity of light outputted from the thin film when transitioning from an excited state to a ground state and a change in conductivity of the thin film,
wherein the thin film, the P-type semiconductor, and the N-type semiconductor further include a second P-type semiconductor provided between the thin film and the N-type semiconductor, and comprises a reach-through structure that separates a region in which a crystal includes a composite defect of an impurity atom and a vacancy and a region in which carrier increase is caused when a reverse bias voltage is applied.