Plessey announces high-volume large GaN-on-Si LED die, will exhibit at LuxLive

Nov. 14, 2014
Plymouth, ENGLAND -- Plessey has announced the realisation of its high-performance, high-quality, and high-volume, large LED die performance based on its leading GaN-on-Silicon technology. The large die benefits from three core features of the Plessey process; the first being the low thermal resistance of silicon, followed by a single-surface, emitter die design and 6-inch wafer processing. To exploit these benefits, Plessey has produced a 20 sq. mm die design (i.e. 4.5 x 4.5mm) that will generate up to 5W of blue light over a 400-480nm wavelength range. This die is produced as a technology demonstrator to enable meaningful engagement with customers to determine the optimum application fit.
Large area LED die help customers in many ways, particularly for Chip-on-Board (CoB) products in providing a much simpler, more uniform light emitter whilst reducing die attach and wire bond overheads. The low thermal resistance of the silicon substrate makes for easier thermal management and enhanced reliability resulting from lower temperature operation. The die uses Plessey's vertical design structure that has a cathode top and anode bottom contacts, which is ideal for scaling the effectiveness in applying large die. And, with 6-inch wafer processing coupled with best-in-class across wafer uniformity, Plessey makes such large die a real commercial proposition. David Owen, Plessey's Marketing Director, explains, "It is clear that the next wave of general lighting products will see LEDs applied in ways that truly exploit the benefits obtained through Plessey's leading GaN-on-Si technology. This announcement marks the start of a phase where we engage with our key partner customers in defining the commercial realisation of lighting products based on Plessey's large GaN-on-Silicon LED die." Plessey's range of products for lighting applications will be showcased at LuxLive, ExCel London, 19-20 November, Stand D31. The show will open on Wednesday 19th November from 9am to 9pm and on Thursday 20th November from 9am to 5pm. The show is free to attend. For free tickets please visit: There will be innovative demonstrations by technical and design experts for Plessey's LED technology at the stand. This is an opportunity to gain a deeper understanding of Plessey's latest products and solutions for the commercial, industrial, consumer and wearable lighting segments. Plessey's MaGIC™ (Manufactured on GaN-on-Si I/C) High Brightness LED (HBLED) technology has won numerous awards for its innovation and ability to cut the cost of LED lighting by using standard silicon manufacturing techniques. Plessey Plessey is a leading expert in the development and manufacture of semiconductor products used in sensing, measurement and control applications. Plessey's products are found in a wide range of markets including communications, manufacturing, medical, defence and aerospace. Plessey designs products for high performance applications and its range of integrated products includes CMOS image sensors, low and mid-power LEDs, Hall Effect devices and its award-winning EPIC electric potential sensors. Using its understanding of electronics and expertise in micro-electronic product design and manufacture, Plessey is radically enhancing the human experience with micro-electronics solutions such that people achieve more than they thought possible. Plessey is a UK-based manufacturer with offices around the US, Europe and Asia.



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