Waymo llc (20240243209). Controlling Detection Time in Photodetectors simplified abstract
Contents
Controlling Detection Time in Photodetectors
Organization Name
Inventor(s)
Caner Onal of Palo Alto CA (US)
Simon Verghese of Mountain View CA (US)
Pierre-Yves Droz of Los Altos CA (US)
Controlling Detection Time in Photodetectors - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240243209 titled 'Controlling Detection Time in Photodetectors
The patent application relates to controlling detection time in photodetectors by mitigating dark current arising from minority carriers photoexcited in the substrate based on the light emitted from the light source.
- The device includes a substrate and a photodetector coupled to the substrate.
- The photodetector detects light emitted from a light source irradiating the top surface of the device.
- The depth of the substrate is at most 100 times a diffusion length of a minority carrier within the substrate to mitigate dark current.
Potential Applications: - Photodetectors in various electronic devices - Optical sensors in industrial applications - Imaging systems in medical equipment
Problems Solved: - Reduction of dark current in photodetectors - Improved detection accuracy in low-light conditions - Enhanced performance of optical sensing devices
Benefits: - Increased sensitivity and efficiency of photodetectors - Better signal-to-noise ratio in detection - Extended lifespan of photodetector components
Commercial Applications: Title: Enhanced Photodetectors for Improved Sensing Applications This technology can be utilized in security cameras, medical imaging devices, and scientific instruments for enhanced detection capabilities and improved performance in low-light environments.
Questions about Photodetectors: 1. How does the depth of the substrate impact dark current in photodetectors?
The depth of the substrate affects the diffusion length of minority carriers, which in turn mitigates dark current in the photodetector.
2. What are the potential applications of photodetectors with reduced dark current?
Photodetectors with reduced dark current can be used in various industries for improved sensing and detection capabilities.
Original Abstract Submitted
example embodiments relate to controlling detection time in photodetectors. an example embodiment includes a device. the device includes a substrate. the device also includes a photodetector coupled to the substrate. the photodetector is arranged to detect light emitted from a light source that irradiates a top surface of the device. a depth of the substrate is at most 100 times a diffusion length of a minority carrier within the substrate so as to mitigate dark current arising from minority carriers photoexcited in the substrate based on the light emitted from the light source.
