US 12,446,354 B2
Single-photon detection element, electronic device, and lidar device
Myung-Jae Lee, Seoul (KR); and In-Ho Lee, Seoul (KR)
Assigned to TRUPIXEL INC., Daejeon (KR)
Filed by TRUPIXEL INC., Daejeon (KR)
Filed on Nov. 2, 2022, as Appl. No. 17/979,228.
Claims priority of application No. 10-2022-0077706 (KR), filed on Jun. 24, 2022.
Prior Publication US 2023/0420584 A1, Dec. 28, 2023
Int. Cl. H10F 77/70 (2025.01); H10F 30/225 (2025.01); H10F 77/40 (2025.01); B82Y 20/00 (2011.01); G01S 7/481 (2006.01)
CPC H10F 77/70 (2025.01) [H10F 30/225 (2025.01); H10F 77/413 (2025.01); B82Y 20/00 (2013.01); G01S 7/4816 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A single-photon detection element comprising:
a substrate comprising a first surface and a second surface located opposite to each other; and
a plurality of plasmonic nanopatterns provided on the second surface,
wherein the substrate further comprises a high-concentration doping region provided adjacent to the first surface, a substrate region provided between the high-concentration doping region and the plurality of plasmonic nanopatterns, and a first well provided between the substrate region and the high-concentration doping region,
wherein the first well has a first conductivity type, and
the high-concentration doping region has a second conductivity type different from the first conductivity type.