Patent · US Active

LED module having a platform with a central recession

US8716730B2 · kind B2 · utility

2Cited by

1References

24Claims

0Family size

Assignee

Ledon Lighting Jennersdorf GmbH · AT

Inventors

Yanqi Wang · Plainsboro, US
Hiroaki Kawaguchi · Yamatokōriyama, JP
Friedrich Wagner · Balingen, DE

Key dates

Filing date	Apr 1, 2009
Grant date	May 6, 2014
Priority date	—
Expiry date	Sep 5, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/853
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

An LED module comprises a platform having a recession, wherein the recession presents a center section with a bottom and an enlarged section surrounding the center portion. An LED chip is arranged on the bottom of the center section. A bond wire leads from the LED chip to the bottom of the enlarged section in order to contact a first electrode of the LED chip. In one embodiment the bond wire is electrically connected to the back side of the platform by means of a through contact leading from the bottom of the enlarged section through the platform to the backside of the platform. In another embodiment a first conducting path leads from a first electrode of the LED chip across the side wall of the recession to the surface of the platform and from there across a lateral wall of the platform to the back side of the platform. A second conducting path, electrically isolated from the first conducting path, leads from a second electrode of the LED chip across the side wall of the recession to the to surface of the platform and from there across a lateral wall of the platform to the back side of the platform.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.