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Accent Optical Technologies

131 NW Hawthorne, Suite 207, Bend, OR 97701 USA
Tel: +1 541 322 2500
Fax: +1 541 318 1966
Email: ejustema@accentopto.com Net: http://www.accentopto.com

For manufacturers of advanced silicon semiconductors, Accent offers fast, fully automated, non-destructive process-control solutions. Customers use Accent's products to characterize their materials and screen their production processes.

Accent Optical Technologies is a leading supplier of process control and measurement tools for the optoelectronics, wireless, and silicon semiconductor equipment industries. Accent's systems perform critical functions for high-yield manufacturing and new material development.

Amongst the characterisation equipment offered by Accent relating to GaN materials, Accent offers the Dynamic I-V Analyzer which will reveal the high-frequency responses in III-V, wide band-gap and RF power semiconductors rapidly and cost-effectively. Dynamic I-V measurements use short pulses to avoid changes in deep-level trap occupancies and self-heating. Therefore, Diva is able to reveal the true high-freqency responses of devices. Such measurements are particularly important for compound material systems which have medium or high levels of deep-level traps. This includes GaAs, InP, SiC and GaN based technologies.

ADDCO, Inc.

240 Arlington Ave. E., St. Paul, MN 55117 USA
Tel: +1 651 488 8600
Fax: +1 651 558 3600
Contact: Tim Nicholson, President
Email: info@addcoinc.com
News page: http://www.addcoinc.com/w_press.htm
Main WS: http://www.addcoinc.com/
A St. Paul, MN, USA, based company, ADDCO, Inc., is a premier manufacturer of traffic control equipment and industrial products. The GaN connection is a little tenuous but derives from its use of LED-based traffic signage.

Air Products & Chemicals Inc.

7201 Hamilton Blvd., Allentown, PA 18195 1501, USA
Tel: +1 (215) 481 7060
Fax: +1 (215) 481 2644
Net: http://www.airproducts.com/electronics/
Contact: Greg Muhr
Supplier of high purity organometallics and gases. It recently made a multi-million dollar investment in a new, ultra-high purity ammonia distillation plant at its Hometown, PA, USA, electronic specialty gases manufacturing complex.

Onstream now Air Products is producing high volume, ultra-high purity White Ammonia™ —with a minimum purity of 99.99996% (6.6) and a targeted purity of 99.99999+% (7.0+)—to meet growth and purity expectations in compound semiconductors and other markets such as 300mm semiconductor fabs and FPDs. The emphasis is on serving established and new customers in North America, Europe, Taiwan, Korea, China and Japan for growing end use markets applications such as LEDs, lasers and laser diodes, photodiodes, and high power compound semiconductor transistors and ICs. For exmaple, in late April 2003 it signed an agreement with China's leading III-nitride LED producer Shanghai LanBao Photoelectric Materials Co., Ltd.

Air Products and The Pennsylvania State University are continuing their cooperative research efforts to understand the effects of gas source purity on Group III-Nitride (AlGaInN)-based thin films and device structures. This program—under way since the beginning of 2002 and part of a larger multi-year, multi-million dollar strategic alliance between the University and Air Products—has been evaluating typical residual and other metallic impurity levels in layers grown by MOVPE using high purity ammonia sources, and the impact of these impurities on the structural, electrical and optical properties of the compound semiconductor materials. The objective of the program is to conclusively identify and reduce sources of oxygen and other undesired impurities within the MOVPE environment, including the development of new high-purity ammonia sources.

AIXTRON AG

Kackertstrasse 15-17, 52072 Aachen, Germany
Tel: + 49 (24 1) 89090
Fax: + 49 (24 1) 8909 40
Email: info@aixtron.com
Internet: http://www.aixtron.com
Contact: Octavia Schirmer

With an installed base of well over 700 MOCVD systems world-wide, AIXTRON is, as verified by VLSI Research Inc., the world leading supplier of equipment for semiconductor epitaxy and has been rated amongst the 2002 10 BEST in its category in the most recent VLSI Customer Satisfaction Survey. Its equipment is used by a diverse range of customers worldwide to manufacture critical, advanced components including GaN-related lasers, LEDs and electronic devices.

The company has an extensive service and support network in over 15 countries. AIXTRON's many customers include Agere, Alcatel, Anritsu, ATMI, Avalon, AXT, Epson, Honeywell, Infineon, IQE, IQE Silicon Compounds, ITT, JDS-Uniphase, Kopin, LumiLeds, Mitsubishi, Motorola, Nortel, Optospeed, Osram, Procomp, Samsung, Showa Denko, Siemens, ST Microelectronics, Sumitomo, Thales, UEC, VPEC as well as numerous Japanese corporations.

AIXTRON systems have also been installed in the most renowned research institutes worldwide, including CNRS, Fraunhofer Institute, ITRI-OES, JPL, Meijo University, NDL Taiwan, Research Center Jülich, RIKEN, Sandia Nat Labs, Tsinghua University and the University of Tokyo. AIXTRON is very active in advancing MOCVD technology through collaborations and joint R&D projects with major partners worldwide.

Specifically, AIXTRON is a manufacturer of MOCVD equipment for wide bandgap compound semiconductors. It also offers related equipment such as EpiTUNE® II which has been designed to monitor processes at temperatures between 400 and 1600°C, i.e. all III-V processes such as GaAs, InP or GaN based ones can be real time monitored. Based on Luxtron proprietary Ripple® technology, EpiTUNE® II allows measurement of the reflectivity of growing wafer surfaces as well as true surface temperature with an unrivalled precision. Monitoring of semi-transparent substrates is also possible.

An example of one of the company's many GaN-related sales successes is South Epitaxy Corporation (SEC), the Taiwan-based specialist in the production of UHB LED wafers and chips. The high throughput AIX 2600G3 HT MOCVD Planetary® Reactor will increase its already existing installed base of AIXTRON systems. The 24 x 2-inch system enabled SEC to ramp up its production capacity for high-end GaN based UV, blue and green LED wafers.

AIXTRON is also successful in related areas such as OLEDs and diamond films. For example, it has an OVPD, Organic Vapor Phase Deposition, Equipment for OLED displays at Universal Display Corp. The uniformity of blue, green and red OLED films surpassed the expectations and demonstrates the scaling success for FPD manufacturing, yielding very bright light emission across full 6 x 6 inch² panels.

Akzo Nobel High Purity Metalorganics

USA: Akzo Nobel High Purity Metalorganics
300 S. Riverside Plaza, Suite 2200, Chicago, Illinois 60606 USA
E -mail: metalorganicsNA@akzonobel.com
Tel: +1 312 906 7666 Fax: +1 312 906 7633

Europe: Akzo Nobel High Purity Metalorganics
Stationsplein 4, Postbus 247, 3818 LE Amersfoort, The Netherlands
E -mail: metalorganicsEU@akzonobel.com
Tel: +31 33 4676608 Fax: + 31 33 4676101

Asia/Pacific: Akzo Nobel High Purity Metalorganics
510 Thomson Road #17-00 SLF Building, Singapore 298135
E -mail: metalorganicsAP@akzonobel.com
Tel: +65 2581333 Fax: +65 2586328

Net: http://www.anhpmo.com/
Contact: Dick Pearce
Akzo Nobel Chemicals is a supplier of source materials to the semiconductor industry. High purity metalorganics from Akzo Nobel include certified high-purity volatile organometallic compounds of aluminum, antimony, gallium, indium, magnesium, and zinc for CVD, CBE and OMVPE of compound semiconductors, and for similar vapour deposition applications. Amongst its offerings are organometallic precursors for nitride layer growth.

APA Optics Inc.

2950 NE 84th Lane, Blaine, MN 55449 USA
Tel: +1 763 784 4995
Email: IR@apaoptics.com
Contact: Bob Ringstad
News at: http://www.nasdaq.com/scripts/redir.asp?symbol=APAT&page=news
WS: http://www.apaoptics.com/

APA Optics' main GaN interest is in detectors and it has released several commercial GaN-based products including unique its UV detection and monitoring products: the SunUVWatch®, a personal UV monitor to help consumers minimize risks associated with exposure to sunlight, and the TRUVMETER, a commercial UV detector and software used to monitor UV levels in various manufacturing and scientific applications.
Established in 1979, the company has focused on leading edge research in sophisticated optoelectronic and optical system areas. Other GaN product lines include nitride epilayers. Generally, APA Optics has diversified into non-GaN areas so that today it manufactures and markets advanced products for the fibre optic communications, optoelectronics and laser industries, including DWDM and custom optics.

Arima Optoelectronics

Arima Optoelectronics, 9F, No.349, Jenho Rd. Sec. 2, DaShi, Taoyuan, Taiwan, Republic of China

Tel: +886 (03) 3803786

Fax: +886 (03) 3803801

E-mail: infor@aocepi.com.tw Net: http://www.aocepi.com.tw

This Taiwan-based opto components manufacturer with an interest in high brightness LEDs including III-nitride based types. Arima also provides foundry services for compound semiconductor manufacturing in making epitaxial wafers, related testing and packaging. GaN-related products include III-V UHB LED as well as other III-V LED and LD dice and epiwafers.

Arima Optoelectronics is part of the Arima Group which was founded in 1989 and is in the OEM, ODM and Contract Manufacturing businesses. Arima provides a full spectrum of digital product design, development and manufacturing. AOC now is a major supplier to many first class LED manufacturers around the world.

Arima Optoelectronics also has a European R&D centre which opened in September 1998. This is part of its collaboration with Bath University in UK in III-nitrides. In May 1999 the Europe R&D Center announced the successful development of the company's first GaN LED structure. By year-end this had reached production status leading to released of GaN blue LEDs in May 2000. By June-July 2000 this had reached 1-2 k/month) to be increased further by year-end and Arima had launced its first GaN bluish-green LED chips. In January 2001 it set up its first laser diode and released the line of UHB GaN green LEDs. By March 2002 it had increased shipments of UHB LEDs to over 100K.

ATMI Inc.

7 Commerce Drive, Danbury, CT 06810, USA
Tel: +1 203 794 1100
Fax: +1 203 792 8040
Email: dhamilton@atmi.com
Net: http://www.atmi.com

Contact: Dean Hamilton

CEO: Gene Banucci, Doug Neugold, President
ATMI provides speciality materials and services to the worldwide semiconductor industry. Its GaN venture supplies gallium nitride substrates and electronic and optoelectronic device epitaxy services. ATMI began in-depth research on GaN and III-nitride compounds in 1993 and has been a leading developer of GaN substrates and GaN epitaxy for electronic devices.
In 1997, ATMI first expanded its nitride epitaxy manufacturing capacity with the addition of an AIXTRON 200/4. In 2000, ATMI expanded further to enable production of GaN substrates. ATMI has over twenty patents issued or pending for its GaN expertise.
ATMI's III-V Division in Phoenix, AZ, USA, has a multi-step expansion plan underway for both its silicon and III-Vs that can already handle more than 100,000 wafers/month.
In September, 2002, in response to increasing customer demand, ATMI, Inc. expanded its GaN epitaxial capacity with the purchase of AIXTRON's 8x4" III-Nitride MOCVD reactor.
Dr. George Brandes is Director of ATMI's GaN venture.

American Xtal Technology (AXT) Inc.

4281 Technology Drive, Fremont, CA 94538, USA
Tel: +1 510 683 5900
Fax: +1 510 683 5901
E-mail: sales@axt-vgf.com
Internet: http://www.axt.com/
Contact: Dr. Theodore Young
Supplier of GaAs, GaN and InP wafers, AXT designs, develops, manufactures and distributes high-performance compound semiconductor substrates, as well as opto-electronic semiconductor devices, such as HB-LEDs and VCSELs.
Substrate products are used primarily in fibre optic communications, wireless communications and lighting display applications.
Acquisition of Lyte Optronics provided AXT with expertise in epitaxial processes for manufacturing optoelectronic semiconductor devices. It uses these capabilities to make blue, green and cyan HB LEDs and VCSELs.