The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2024
Filed:
Sep. 14, 2022
Applicant:
Silanna Uv Technologies Pte Ltd, Singapore, SG;
Inventors:
Norbert Krause, Hawthorne QLD, AU;
Petar Atanackovic, Henley Beach South, AU;
Assignee:
Silanna UV Technologies Pte Ltd, Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01L 33/14 (2010.01); H01L 33/04 (2010.01); H01L 33/26 (2010.01); H01L 33/32 (2010.01);
U.S. Cl.
CPC ...
H01L 33/0041 (2013.01); H01L 33/002 (2013.01); H01L 33/0025 (2013.01); H01L 33/04 (2013.01); H01L 33/14 (2013.01); H01L 33/26 (2013.01); H01L 33/32 (2013.01);
Abstract
Embodiments disclose LEDs that operate using impact ionization. Devices include a first conductivity type layer having a first conductivity type, a first intrinsic layer, a charge layer, an impact ionization layer, and a contact layer. The charge layer has a net charge of the first conductivity type and has a material comprising a polar oxide or a non-polar oxide. The charge layer forms a barrier for transporting carriers of the first conductivity type until a bias is applied between the first conductivity type layer and the contact layer to flatten the barrier.