US 12,443,210 B2
Efficient monolithic optocoupler device
Matthew Lumb, Alexandria, VA (US)
Assigned to The George Washington University, Washington, DC (US)
Filed by The George Washington University, Washington, DC (US)
Filed on Sep. 3, 2021, as Appl. No. 17/466,168.
Application 17/466,168 is a continuation of application No. 16/563,463, filed on Sep. 6, 2019, granted, now 11,137,784.
Claims priority of provisional application 62/824,037, filed on Mar. 26, 2019.
Claims priority of provisional application 62/800,805, filed on Feb. 4, 2019.
Claims priority of provisional application 62/800,809, filed on Feb. 4, 2019.
Claims priority of provisional application 62/728,463, filed on Sep. 7, 2018.
Prior Publication US 2021/0397209 A1, Dec. 23, 2021
Int. Cl. H10F 55/255 (2025.01); G05F 1/575 (2006.01); H10F 77/40 (2025.01)
CPC G05F 1/575 (2013.01) [H10F 55/255 (2025.01); H10F 77/413 (2025.01)] 17 Claims
OG exemplary drawing
 
1. A monolithic optocoupler device, comprising:
a substrate;
a photovoltaic region, deposited on the substrate in a vertical stack, that absorbs photons;
a light emitting region, deposited on the substrate in the vertical stack, that emits photons responsive to an electrical input; and
an electrically isolating region, deposited on the substrate in the vertical stack between the photovoltaic region and the light emitting region, that allows photons to pass from the light emitting region to the photovoltaic region while blocking electrical current between the photovoltaic region and the light emitting region.