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. 06, 2009
Filed:
Aug. 15, 2005
Virginia M. Robbins, Los Gatos, CA (US);
Steven D. Lester, Palo Alto, CA (US);
Jeffrey N. Miller, Los Altos Hills, CA (US);
David P. Bour, Cupertino, CA (US);
Virginia M. Robbins, Los Gatos, CA (US);
Steven D. Lester, Palo Alto, CA (US);
Jeffrey N. Miller, Los Altos Hills, CA (US);
David P. Bour, Cupertino, CA (US);
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A light-emitting device comprises an active region configured to generate light in response to injected charge, and an n-type material layer and a p-type material layer, wherein at least one of the n-type material layer and the p-type material layer is doped with at least two dopants, at least one of the dopants having an ionization energy higher than the ionization energy level of the other dopant.