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:
Feb. 19, 2013
Filed:
Dec. 21, 2010
George R. Brandes, Raleigh, NC (US);
Robert P. Vaudo, Cary, NC (US);
Xueping Xu, Stamford, CT (US);
Cree, Inc., Durham, NC (US);
Abstract
A microelectronic assembly in which a semiconductor device structure is directionally positioned on an off-axis substrate. In an illustrative implementation, a laser diode is oriented on a GaN substrate wherein the GaN substrate includes a GaN (0001) surface off-cut from the <0001>direction predominantly towards either the <110> or the <100> family of directions. For a <110> off-cut substrate, a laser diode cavity may be oriented along the <100> direction parallel to lattice surface steps of the substrate in order to have a cleaved laser facet that is orthogonal to the surface lattice steps. For a <100> off-cut substrate, the laser diode cavity may be oriented along the <100> direction orthogonal to lattice surface steps of the substrate in order to provide a cleaved laser facet that is aligned with the surface lattice steps.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile