Patent ID: 11965989
Assignee: BEIJING VOYAGER TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. An optical sensing method, comprising:
emitting, by a light source of an optical sensing system, an optical signal into an environment surrounding the optical sensing system;
receiving, by a photodetector of the optical sensing system, the optical signal reflected from the environment surrounding the optical sensing system, wherein the photodetector is disposed in a substrate; and
generating, by a readout circuit of the optical sensing system, a readout signal based on an electrical signal received from the photodetector,
wherein the readout circuit is disposed in the same substrate as the photodetector and connected to the substrate through one or more bonding wires, and
wherein the photodetector and the readout circuit are stacked over one another on the substrate, and are connected through one or more through silicon vias (TSVs) in a three-dimensional (3D) structure.