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:
May. 24, 2005
Filed:
Mar. 10, 2004
Hui Peng, Fremont, CA (US);
Gang Grant Peng, Fremont, CA (US);
Hui Peng, Fremont, CA (US);
Gang Grant Peng, Fremont, CA (US);
Other;
Abstract
Group III-V compound semiconductor high brightness white or desire color light emitting diodes (LEDs) are disclosed. One of embodiments of the LEDs of the present invention comprises a first active layer, a second active layer, and a transition active layer sandwiched between the first and the second active layers, and is flip chip bonded on an electrically conductive submount for faster heat dissipation. Material systems for active layers of the LEDs of the present invention comprise (Al.sub.xGa.sub.1-x).sub.yIn.sub.1-yP.sub.z N.sub. 1-z. With combinations of different values of 'x', 'y', and “z”, the active layers and the transition active layer emit lights of different wavelengths. Appropriately adjusting wavelengths and intensities of emitted lights provides high brightness white or desire color.