The future of high-power conventional semiconductor based Light Emitting Diodes (LEDS) against Organic Light Emitting Diodes (OLEDS)

Nathan, Sheryl; Shammas, N.Y.A.; Grainger, S.

doi:10.1109/upec.2007.4469033

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“…Although solid state lighting was first discovered in 1907, the LED technology known today gained traction during the 1960s [Nathan et al, 2007] Other researchers have focused on improving the most common thermal bottleneck of an LED package, the LED itself. HBLEDs are composed of sapphire or GaAs, which are both thermal insulators [Schubert].…”

Section: Package Design Researchmentioning

confidence: 99%

The Design and Manufacture of a Light Emitting Diode Package for General Lighting

Krist¹

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Unfortunately, LEDs pose unique problems because advanced thermal management is required to remove the high heat fluxes generated by such relatively small devices. These problems have already been overcome with complex packaging and exotic materials, but high costs are preventing this technology from displacing current lighting technologies.The purpose of this study is to develop a low-cost LED lighting package capable of successfully managing heat. Several designs were created and analyzed based on cost, thermal performance, ease of manufacturing, and reliability. A unique design was created which meet these requirements. This design was eventually assembled as a prototype and initial testing was conducted. This thesis reviews the design process and eventual results of the LED package design.v ACKNOWLEDGEMENTS

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Section: Package Design Researchmentioning

confidence: 99%