Polarless surface mounting light emitting diode
US7714334B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 16, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/49113
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A polarless surface mounting light emitting diode comprises a substrate; an upper surface of the substrate being etched with four independent metal thin film blocks; a lower surface of the substrate being formed with two independent metal thin film blocks; two ends of the substrate being formed with electroplated through holes; a plurality of metal thin films adhered upon the upper and lower surfaces of the substrate; two light emitting assemblies, each light emitting assembly being formed by a chip resistor and a chip light emitting diode; and a package layer. The connection of the polarless surface mounting light emitting diode of the present invention is not limited by the polarity. Any end of the polarless surface mounting light emitting diode can be connected to positive electrode or negative electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.