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Albemarle forms new business unit for metal organics


ALBEMARLE CORPORATION'S new Electronic Materials business unit is a subgroup of Albemarle's newly renamed Performance Catalyst Solutions (PCS) division.


"As a producer of metal organics for over half a century, Albemarle has built a solid reputation on chemical expertise and experience," said Amy Motto, vice president of Albemarle's PCS division.


"With the launch of our Electronic Materials business unit, Albemarle will bring the same high level of quality and competence to the LED and solar markets. "


Albemarle's Electronic Materials business is already selling commercial quantities of ultra high purity trimethyl gallium (TMG) and triethylgallium (TEG) under its new PureGrowth brand name. The portfolio will be expanded to include ultra high purity trimethylaluminum (TMA) by early 2012 and trimethyl indium (TMI) by mid 2012. These products are used in MOCVD growth which are used to manufacture a variety of compound semiconductor chips including LEDs, solar cells and products used in the RF, telecom and power device markets.


The Electronic Materials business is built upon Albemarle's strong foundation of existing competencies in the electronics industry. In addition to the PureGrowth


Semi registers


10,000 patents THE SOUTH KOREA head-quartered firm has invested in LED technology and increased its number of patents. The company invests 10-20 percent of its annual revenue in Research and Development, including funding of an affiliate company. The company holds a patent portfolio across a broad range of technologies and processes, including material, design, manufacturing and methodology. Notably, the company holds patent rights for Acrich, the semiconductor light source using a multi-cell architecture, as well as patent rights for deep UV LED technology. Seoul Semiconductor anticipates that deep UV LED technology will be commonly used in the future and it will be prepared to produce and sell this technology.


portfolio, Albemarle is currently selling diethyl zinc (DEZ) to the solar panel industry and will expand its offerings to include dimethyl zinc (DMZ) in the near future.


"By expanding into the electronic-grade metal organic arena, Albemarle will be able to provide a robust portfolio of complementary products and services used throughout the electronics industry," said Jenny Hebert, global product manager for Electronic Materials.


"Albemarle will also benefit from a number of R&D and distribution synergies shared by its various business units."


“With the large number of patents and cross-licenses with major LED corporations, Seoul Semiconductor has achieved technical independence and offers customers distinctive solutions not available elsewhere,” said Brian Wilcox, vice president of Seoul Semiconductor. “R&D is our future and patents heighten our competitiveness.”


According to the 2010 LED market reports issued by Strategies Unlimited, Seoul Semiconductor is the world’s fourth largest LED supplier, holding more than 10,000 patents. In particular, it owns a wide range of LED technology and production capacity in areas such as deep UV LEDs and non-polar LEDs, as well as Acrich, what the company claims is the world’s first commercially-produced AC LED.


QD Laser reveals yellow-green and orange laser modules QD Laser and the Institute for Nano


Quantum Information Electronics, the University of Tokyo developed compact laser modules of 561-nm (Yellow-green) and 594-nm (Orange) wavelengths Based on the same module platform for high- power, compact green laser modules, QD Laser and the University of Tokyo have successfully extended the wavelength band to yellow-green and orange visible colour region. These compact modules are promising for a range of applications, especially in life sciences and biomedicine use such as florescence microscopes.


QD Laser and the University of Tokyo have tuned the oscillation wavelength of near infrared single-mode lasers based on semiconductor DFB (Distributed Feedback) laser technology as well as operating wavelength of PPLN crystal for conversion to 561 nm and 594 nm, putting them together in recently developed compact modules of about 0.5 cc. The size of the module is 5.6 x 3.8 x 22 mm.


These modules successfully operate in yellow-green and orange wavelengths. Diode pumped solid state (DPSS) lasers


14 www.compoundsemiconductor.net January/February 2012


are usually used in the wavelength of green, yellow, to orange. T


he new compact module, based on semiconductor laser technology, enables drastic compactness, high stability in power and wavelength, and high-speed modulation, providing common platform in many application areas.


QD Laser is now developing the new laser modules to contribute to the market- leading customers in addition to green laser modules, QLD0593 series.


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