Cree Assigned Patent
(Targeted News Service Via Acquire Media NewsEdge) By Targeted News Service
ALEXANDRIA, Va., March 1 -- Cree, Durham, N.C., has been assigned a patent (8,384,115) developed by Ting Li, Ventura, Calif., for a "bond pad design for enhancing light extraction from LED chips."
The abstract of the patent published by the U.S. Patent and Trademark Office states: "An improved bond pad design for increased light extraction efficiency for use in light emitting diodes (LEDs) and LED packages. Embodiments of the present invention incorporate a structure that physically isolates the bond pads from the primary emission surface, forcing the current to flow away from the bond pads first before traveling down into the semiconductor material toward the active region. This structure reduces the amount of light that is generated in the area near the bond pads, so that less of the generated light is trapped underneath the bond pads and absorbed."
The patent application was filed on Aug. 1, 2008 (12/185,031). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=83,84,115.PN.&OS=PN/83,84,115&RS=PN/83,84,115
Written by Amal Ahmed; edited by Jaya Anand.
(c) 2013 Targeted News Service
[ Back To Technology News's Homepage ]