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:
Jun. 24, 2025
Filed:
Aug. 03, 2022
Nichia Corporation, Anan, JP;
Yoshitaka Kawata, Itano-gun, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
The forming of the tunnel junction layer includes forming a first n-type layer, forming a second n-type layer by introducing a first raw material gas into a furnace at a first temperature, the first raw material gas including a first gas having a first flow rate, and forming a third n-type layer by introducing a second raw material gas into a furnace at a second temperature, the second raw material gas including a second gas having a second flow rate, the second temperature being less than the first temperature. A first flow rate ratio of the first gas in the first raw material gas is greater than a second flow rate ratio of the second gas in the second raw material gas.