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:
Apr. 25, 2017
Filed:
Nov. 05, 2013
Applicant:
Ledengin, Inc., San Jose, CA (US);
Inventor:
Xiantao Yan, Palo Alto, CA (US);
Assignee:
LedEngin, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/14 (2006.01); H05K 1/00 (2006.01); H01L 33/00 (2010.01); H01L 31/0203 (2014.01); H01L 23/12 (2006.01); H01L 23/053 (2006.01); H01L 23/14 (2006.01); H01L 23/06 (2006.01); H01L 23/15 (2006.01); H01L 23/48 (2006.01); H01L 23/52 (2006.01); H01L 29/40 (2006.01); H01L 33/64 (2010.01); H01L 23/495 (2006.01); H01L 23/373 (2006.01); H01L 21/48 (2006.01); H01L 33/48 (2010.01); H01L 29/16 (2006.01);
U.S. Cl.
CPC ...
H01L 33/641 (2013.01); H01L 21/4807 (2013.01); H01L 23/15 (2013.01); H01L 23/3731 (2013.01); H01L 23/49506 (2013.01); H01L 29/1606 (2013.01); H01L 33/48 (2013.01); H01L 33/64 (2013.01); H01L 2224/05187 (2013.01); H01L 2224/05193 (2013.01); H01L 2224/29187 (2013.01); H01L 2224/29193 (2013.01); H01L 2924/0002 (2013.01); H01L 2924/05032 (2013.01); H01L 2924/15787 (2013.01); H01L 2924/15793 (2013.01);
Abstract
Substrates and packages for LED based light devices can incorporate a material with high thermal conductivity in at least the lateral direction (e.g., graphite or graphene) to spread heat across the surface of the substrate. A substrate or layer in a multi-layer substrate can have a graphite core disposed between ceramic sublayers that provide electrical insulation and thermal conductivity in the transverse direction. Another substrate or layer in a multi-layer substrate can be fabricated using a composite of graphite and ceramic materials.