US 12,360,219 B2
MicroLED based time of flight system
Bardia Pezeshki, Mountain View, CA (US); Robert Kalman, Mountain View, CA (US); and Alexander Tselikov, Mountain View, CA (US)
Assigned to AvicenaTech, Corp., Sunnyvale, CA (US)
Filed by AvicenaTech Corp., Sunnyvale, CA (US)
Filed on Aug. 13, 2021, as Appl. No. 17/401,919.
Claims priority of provisional application 63/065,907, filed on Aug. 14, 2020.
Prior Publication US 2022/0050186 A1, Feb. 17, 2022
Int. Cl. G01S 7/4865 (2020.01); H10H 20/857 (2025.01); H10H 29/14 (2025.01); H10H 20/811 (2025.01)
CPC G01S 7/4865 (2013.01) [H10H 20/857 (2025.01); H10H 29/142 (2025.01); H10H 20/811 (2025.01)] 16 Claims
OG exemplary drawing
 
1. Device for an optical time of flight system, comprising:
a GaN microLED comprising a p-doped region, an n-doped region, and an active region with doping;
a photodetector in a silicon chip; and
receiver circuitry in the silicon chip;
wherein the microLED is fabricated to emit light at about 420 nm; and
wherein the microLED has a 3 dB modulation bandwidth of at least one GigaHertz.