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:
Dec. 25, 2012
Filed:
Sep. 02, 2011
Jon-fwu Hwu, Hsinchu, TW;
Yung-fu Wu, Hsinchu, TW;
Kui-chiang Liu, Hsinchu, TW;
Gem Weltronics TWN Corporation, Hsinchu County, TW;
Abstract
A package structure of multi-layer array type LED device is disclosed, wherein a peripheral area of a substrate and a surface of lead frame are respectively installed with a convex/concave surface structure. The convex/concave surface structure increases the surface roughness of the peripheral area of the substrate and the surface of the lead frame, so a liquid package material can be filled in cavities and concave parts; thus a package member formed through the package material being solidified can be firmly combined with the substrate and the lead frame as one piece. In addition, the bottom of a lens is provided with a binder for increasing the sealing level of the lens. Moreover, the present invention adopted a soldering paste added with material having good heat conductivity, so heat generated by LED dices can be rapidly dissipated to the exterior.