Patent ID: 11916164
Assignee: TOYODA GOSEI CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A method for removing hydrogen from a light-emitting element, the method comprising:
providing the light-emitting element that comprises a light-emitting layer with an emission wavelength of not more than 306 nm and a p-type layer comprising AlGaInN including Mg as an acceptor; and
removing hydrogen in the p-type layer from the light-emitting element by irradiating with ultraviolet light at a wavelength of not more than 306 nm from outside and treating with heat in a state in which a reverse voltage, or a forward voltage lower than a threshold voltage of the light-emitting element, or no voltage is applied to the light-emitting element,
wherein the removing of hydrogen in the p-type layer from the light-emitting element is performed in a N2+O2 atmosphere at not less than 500° C.