RED LASERS Conventional Cinema Screens and Medicine Equivalents Can Spur Market Growth ICNS-9 LED Droop Debate Rages on in Glasgow
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Front Cover Final2.qxp 19/8/11 14:28 Page 1 Solid-state lighting GaN-on-silicon LEDs close the gap with RED LASERS conventional Cinema screens and medicine equivalents can spur market growth ICNS-9 LED droop debate rages on in Glasgow RF power NXP complements its silicon LDMOS with GaN HEMTs Faster transistors Novel designs and materials aid the surge towards ultra-high speeds The time for CPV Deployment of grid- tied MW systems starts to take off LED research Atom probe rejects indium clustering in quantum wells An Angel Business Communications publication August / September 2011 Volume 17 Number 6 Project1 24/1/11 14:07 Page 30 Solutions for HIGH BRIGHTNESS LED Manufacturing Nano Imprint Lithography for beam shaping and enhanced light extraction Handling and processing of thin and bowed wafers Wafer bonding for layer transfer Optical lithography and resist processing solutions www.EVGroup.com Comment Final.qxp 18/8/11 16:32 Page 3 CONNECTING THE COMPOUND SEMICONDUCTOR COMMUNITY editorialview August / September 2011 Volume 17 Number 6 Editor-in-Chief David Ridsdale [email protected] +44 (0)1923 690200 Consultant Editor Richard Stevenson PhD [email protected] +44 (0)1291 629640 News Editor Dr. Su Westwater [email protected] Director of SOLAR & IC Publishing Jackie Cannon [email protected] +44 (0)1923 690205 Account Managers Robin Halder [email protected] +44 (0)2476 718109 Keeping the community Shehzad Munshi [email protected] +44 (0)1923 690215 USA Representatives together Brun Media Tom Brun E: [email protected] Tel: 724 539-2404 I’ve just returned from the ninth International Conference on Nitride Semiconductors, which was, Janice Jenkins E: [email protected] Tel: 724-929-3550 without doubt, a very good meeting. Director of Logistics Sharon Cowley [email protected] You know that a strong programme has been put together when you want to be in two places at +44 (0)1923 690200 once. And that’s how I felt on several occasions, including the time I went to an excellent talk Design & Production Manager from Toyota on a pair of devices that it is developing for delivering electrical conversion in hybrid Mitchell Gaynor [email protected] +44 (0)1923 690214 electric vehicles. While I was there, I had to miss what was certain to be an interesting presentation from Samsung on their development of GaN LEDs on 8-inch silicon. Circulation Director Jan Smoothy [email protected] +44 (0)1923 690200 This Korean outfit gave several talks, including a fascinating account of how to produce LEDs Subscriptions Manager spanning a vast colour range on pyramid-shaped nanostructures. Vertical variants producing Debbie Higham [email protected] +44 (0)1923 690220 promising results were reported by Osram Opto Semiconductors, and this company also revealed its progress in green lasers. Chief Operating Officer Stephen Whitehurst [email protected] +44 (0)2476 718970 However, these companies were not joined by other big names in the opto-field, such as Directors Lumileds, Cree and Nichia, who didn’t speak at the meeting. In my opinion, it was their absence Bill Dunlop Uprichard – CEO Stephen Whitehurst – COO that prevented the conference from being a truly great one, like it was in Las Vegas in 2007, Jan Smoothy – CFO when on one memorable afternoon several of the big LED chipmakers went head-to-head as Jackie Cannon, Scott Adams, Sharon Cowley, Sukhi Bhadal they detailed their latest lab results. Published by Angel Business Communications Ltd, Input from companies was also lacking on the laser diode front, with the likes of Nichia, Rohm Hannay House, 39 Clarendon Road, Watford, Herts WD17 1JA, UK and Sumitomo not giving talks at the conference. And unfortunately GaN RF manufacturers T: +44 (0)1923 690200 were even thinner on the ground. F: +44 (0)1923 690201 Angel Business Communications Ltd Given that the vast majority of academic research presented at the conference targets Unit 6, Bow Court, Fletchworth Gate, Burnsall Road, Coventry CV5 6SP improvements to device performance, I feel that the lack of talks by the leading chipmakers is T: +44 (0)2476 718 970 not healthy. That is because presentations by the big firms detailing state-of-the-art performance F: +44 (0)2476 718 971 and potential roadblocks for further success will motivate many academics and show them Compound Semiconductor is published eight times a year on a controlled circulation basis. Non-qualifying individuals can areas where tomorrow’s research can have commercial impact. subscribe at: £105.00/€158 pa (UK & Europe), £138.00 pa (air mail), $198 pa (USA). Cover price £4.50. All information herein is believed to be correct at time of going to press. The publisher does not accept responsibility for any The absence of the GaN RF makers is not a really big concern for me, because these firms do errors and omissions. The views expressed in this publication are not necessarily those of the publisher. Every effort has get together at other conferences, such as CS Europe and CS Mantech. But what about the been made to obtain copyright permission for the material contained in this publication. LED chipmakers that will together drive a revolution in general illumination? Angel Business Communications Ltd will be happy to acknowledge any copyright oversights in a subsequent issue of the publication. Angel Business Communications Ltd © Copyright 2011. All rights reserved. Contents may not be As far as I’m aware, these firms don’t have a conference that focuses at the chip level on LED reproduced in whole or part without the written consent of the publishers. The paper used within this magazine is manufacturing. And judging by the evolution of the silicon industry, really high volume produced by chain of custody certified manufacturers, guaranteeing sustainable sourcing. production requires such gatherings, which can play a role in agreeing standards and helping to US mailing information: Compound Semiconductor improve manufacturing processes. (ISSN 1096-598X) is published 8 times a year Jan/Feb, March, April/May, June, July, August/September, October, November/December for a subscription of $198 by Angel Business Communications Ltd, Hannay House, It will be interesting to see what happens. And while I wait, I’ll look forward to hearing many 39 Clarendon Road, Watford, Herts WD17 1JA, UK. Periodicals postage paid at Rahway, NJ. POSTMASTER: send great talks at the next ICNS, which will be held in Washington DC in 2013. address changes to: Compound Semiconductor, c/o Mercury International Ltd, 365 Blair Road, Avenel, NJ 07001 Printed by: Pensord Press. Richard Stevenson PhD ISSN 1096-598X (Print) ISSN 2042-7328 (Online) Consultant Editor © Copyright 2011. August / September 2011 www.compoundsemiconductor.net 3 11-13 October Dresden, Germany www.semiconeuropa.org 35 Years SEMICON Europa - Building on the Strength of Europe 350+ Exhibitors 40+ Programs and Events Exhibition and Programs focus on the hot Topics and current Challenges: • MEMS • Fab Enhancement • 3D IC Technology • 450mm • Advanced Packaging and Test • Secondary Equipment • Solid State Lighting / LED • Plastic, Organic and Large • Semiconductor Manufacturing Area Electronics • Fab Automation • Research (Science Park) the elements of innovation Co-located with Plastic Electronics Conference and Exhibition 2011 Untitled-9 1 06/06/2011 12:42 Contents Final02.qxp 22/8/11 08:59 Page 5 CONNECTING THE COMPOUND SEMICONDUCTOR COMMUNITY contents Volume 17 Number 6 industry & technology Crowd pleasing topics Green lasers and LED droop were two of the 14 big topics at this year’s ICNS-9. Richard Stevenson reports on the many and varied highlights at this international event Going with GaN NXP has spent many years developing 23 power transistors and it now reveals its GaN-on-SiC products that are designed to complement its current portfolio Red laser market ignites Red lasers have had a major if unknown role 28 in the film world and with recent advances the cinematic role is about to explode GaN 500 GHz transistors Researchers are turning to novel transistor 33 geometries and new faces of GaN to spur the speed of these devices to unprecedented levels CPV momentum starts increasing 36 The concentrated photovoltaic market has 36 been one of great potential for some time. With recent technological advances and cost reductions it is beginning to show the results it has been promising Research Review Atom probe unveils indium clustering 41 Tiny lasers show PIC promise Telecom credentials bolstered by dots Auger is not to blame for LED droop Sapphire cuts current leakage in HEMTs 14 33 news India is set to benefit from CPV Kyma adds n+ bulk GaN 06 First Solar heads to Copper 10 Ascent Solar signs strategic deal in Mountain for new deal China opening opportunities China heading for global LED Agilent teams up with Davis 07 leadership by 2015 11 Cree achieves record revenue 06 08 Saphire sales for ARC GaAs cells launched into space Mobile shipments see massive China’s LED outlook as been 08 growth in 2011 12 boosted with new entrants into Model K1 expands operations the expanding market 11 12 August / September 2011 www.compoundsemiconductor.net 5 News Final.qxp 18/8/11 16:38 Page 6 news review India is set to benefit from CPV THERMAX LIMITED and Amonix, Inc. have in energy and environment management. announced an agreement that will bring Together, we will access the Indian market proven, concentrated photovoltaic (CPV) by enabling developers of solar projects technology for clean power generation to to build projects, supported by world-class India. In this exclusive partnership, Amonix technology from Amonix and the strong will offer high-performance solar power delivery track record, supply chain and generation systems and Thermax will be construction experience of Thermax.