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:
Nov. 06, 2012
Filed:
Jul. 29, 2010
Miguel Galvez, Danvers, MA (US);
Victor Perez, Lawrence, MA (US);
Kenneth Grossman, Beverly, MA (US);
Mary Ann Johnson, Rockport, MA (US);
Miguel Galvez, Danvers, MA (US);
Victor Perez, Lawrence, MA (US);
Kenneth Grossman, Beverly, MA (US);
Mary Ann Johnson, Rockport, MA (US);
Osram Sylvania Inc., Danvers, MA (US);
Abstract
An LED light source () comprises a ceramic substrate () with first and second opposed surfaces (). Pockets () are formed in the first surface () and each of the pockets includes a bottom () and a sidewall or sidewalls (). A final electrical contact () comprised of a first electrically conductive material () with a coating of a second electrically conductive material () thereover is positioned in each of the pockets (). An LED () is positioned in each of the pockets () and affixed to the electrical contact () and electrical connections (), preferably in form of wire bonds, join the LEDs, the electrical connections () extending from a first LED () to an adjacent electrical contact (). The ceramic substrate () is formed by injection molding a ceramic material and binder to form a green substrate () and subsequently sintering the green substrate to form the substrate (). An LED light () can be formed from the LED light source () by adding a dome () formed of a ceramic material containing therein a homogeneous dispersion of a phosphor material capable of emitting light when excited by the light emitted from the operating LEDs ().