Founded in 2017 in La Palma, California, SeeDevice is a leader in the development of smart vision sensors using quantum tunneling technology to see further, sense faster, and deliver higher quality images in more lighting conditions than current CMOS sensors.
LOS ANGELES, Aug. 20, 2020 /PRNewswire/ -- SeeDevice, a pioneer in quantum image sensing technology, announced a landmark licensing agreement with MegaChips Corporation, a global fabless LSI Company. The agreement allows MegaChips to integrate SeeDevice's Photon Assisted Tunneling - Photo Detector (PAT-PD™) smart vision sensor into their products.
"This licensing agreement is a validation of our technology maturity and ability to serve a major partner and supplier like MegaChips. Our PAT-PD sensor not only outperforms existing image sensors, it helps create an entirely new category of photon sensing capability," said Hooman Dastghaib, CEO of SeeDevice. "For example, sensitivity for photo-diodes is measured in uV per electron generated, or amps/watt (A/W), and generates a relatively low responsiveness of less than 1 A/W. Our PAT-PD sensor, using quantum tunneling, can produce a variable output between 102 and 108 A/W, far surpassing the ability of today's leading CMOS image sensors, producing higher-quality images in a wider variety of lighting conditions."
PAT-PD also expands the photosensitive light range of CMOS sensors beyond visible light into near-infrared (NIR) spectrum (between 300nm-1,600nm) with plans to increase this to 2,000nm with the next-generation of sensors, pushing into shortwave infrared (SWIR) frequencies. This enables high visual quality sensing in low-light/near no-light use cases.
Additionally, the PAT-PD sensor boosts photoelectric conversion efficiency to 107, while maintaining a Signal to Noise Ratio (SNR) over 60dB at room temperature, delivering an image signal that is consistently sharp and crisp. Reaction time is also reduced from microseconds to sub-nanoseconds while dynamic range is boosted to 100dB linear and 150dB non-linear, allowing the PAT-PD sensor to record in record time while maintaining an extremely high-fidelity image.
SeeDevice achieves all of these results using standard CMOS fabrication process, meaning easier integration in mixed-signal process, and avoiding the use of expensive exotic materials and manufacturing processes to achieve similar results.
Quantum tunneling effect allows a photon-activated current flow to trigger using a fraction of the photons normally required in a photo-diode based design. This allows a PAT-PD sensor to trigger with just a single photon, generating a current with unprecedented efficiency and creating a signal with significantly less input over a much wider range of wavelengths. Using a PAT-PD silicon-based CMOS image sensor, devices can capture granular-level sharp details even in extremely low light conditions by utilizing infrared, near infrared, and short-wave infrared frequencies.
There are a number of additional benefits PAT-PD provides to device makers: