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Equipment and Materials ♦ news digest


NASDAQ a plan to regain compliance with requirements for continued listing and that NASDAQ had granted an extension, to May 20th, 2013, for the company to regain compliance with NASDAQ’s requirements for continued listing.


However, the company does not expect to regain compliance with NASDAQ’s requirements for continued listing by May 20th, 2013.


So Veeco intends to request a hearing before the NASDAQ Listing Qualifications Panel to request additional time to regain compliance with NASDAQ’s requirements for continued listing.


The firm also intends to request that NASDAQ allow itst securities to remain listed on the NASDAQ Global Select Market until such time as the hearing process concludes and any resulting exception period expires.


AMP launches arsenic removal media


The high capacity makes the application suitable for use in MOCVD growth where other adsorbent materials are impractical


An Oklahoma based startup, Associated Material Processing, LLC, has developed a proprietary arsenic removal media for industrial waste water remediation.


Oklahoma State University Professor Allen Apblett, invented the new polymeric adsorbent media, AMP-25, with unprecedented affinity for arsenic.


AMP-25’s capacity for arsenic can reach up to 150 mg As/g of the adsorbent, which is almost an order of magnitude higher than conventional arsenic adsorbents. This high capacity makes it suitable for use in applications where other adsorbent materials are impractical.


What’s more, with its high capacity, the selectivity for arsenic is high with the product able to reduce arsenic from 100 ppm to below detection limits (0.0005 ppm) in a single batch contact. Also, it is not significantly affected by the presence of other ions.


Applications for AMP-25 involve removal of arsenic from GaAs processing waste, mining operations and metal finishing facilities.


Associated Material Processing, LLC (AMP) is a chemical technology company with innovative solutions to remediate hazardous and unwanted chemicals.


Oklahoma based AMP was launched by Cowboy Technologies, LLC in November 2011 to commercialise Apblett’s invention. AMP has developed proprietary arsenic adsorption products, AMP-25 for semiconductor industry application dand AMP-35 for drinking water treatment.


Rubicon to showcase optical- grade sapphire products


The provider of sapphire substrates and products to the LED, semiconductor, and optical markets will exhibit its products at the Laser World of Photonics in Munich, Germany 21st Laser World of Photonics Show


Rubicon Technology will show off its line of optical products for use in defence and aerospace, instrumentation and analytical processing, sensors and detectors, semiconductor process equipment, and medical and laser applications at the 21st Laser World of Photonics International Trade Fair.


Sapphire can be used as a component in electro-optic products used to detect or measure the presence or features of light in a number of optical applications. Rubicon provides a wide range of sapphire products that can be integrated into existing opto-electronic applications including sapphire cores, ingots, windows and blanks.


“As opto-electronic technology and applications evolve, the demand for optical-grade, high-quality sapphire has grown,” says Raja M. Parvez, President and CEO, Rubicon Technology. “Based on sapphire’s unique strength and hardness, chemical inertness, and transparency in the visible and IR spectrum, there’s growing interest in using sapphire in products that are used to detect or measure light. Sapphire becomes very desirable in extreme environments such as military and industrial applications where material durability is just as important as optical clarity.”


Until now, existing methods used to produce optical- grade sapphire windows haven’t met demands for thickness and size in certain military and other applications. The company recently developed a new horizontal growth process to produce monolithic sapphire sheets large enough for use in next generation optical windows for military and industrial applications.


Rubicon will have a number of optical sapphire products of different sizes and orientations on display in Hall B2, Stand #163 at Laser World of Photonics, including sapphire cores, ingots, windows, domes and blanks. Rubicon will also be displaying large diameter wafers


June 2013 www.compoundsemiconductor.net 175


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