Patent ID: 11860109
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A manufacturing method of a GOI (Ge-on-insulator) device for on-chip optical sensing, the method comprising:
manufacturing a GOI structure comprising a germanium layer and provided with a waveguide region;
integrating, on the GOI structure, a light source element configured to generate light for the waveguide region; and
integrating, on the GOI structure, at least one optical detection element configured to detect light coming from the waveguide region,
wherein the at least one optical detection element is configured to convert the light from the waveguide region into heat and detect the heat, and
wherein the integrating of the optical detection element comprises:
forming an insulating layer on one side of the waveguide region so as to cover the germanium layer;
stacking a bolometric material layer on top of the insulating layer, whose resistance changes with heat generated as light is propagated from the germanium layer; and
forming, on the bolometric material layer, at least one electrode used to detect the resistance after a change in resistance has occurred.