Products, Materials & Tools | Aug 12, 2011

Translucent Announces Commercial Availability of vGaN™ Wafer Templates for Low-Cost Epitaxial Growth of GaN Devices

Translucent, Inc., a provider of rare-earth-oxide (REO) engineered silicon substrates for low-cost, high-performance epitaxial semiconductorapplications, announced today the commercial availability of its vGaN™ family of silicon-based wafer templates. The vGaN products provide a low-cost, high-quality epitaxial surface for the growth of gallium nitride (GaN) devices such as light-emitting diodes (LEDs) or field-effect transistors (FETs).

The vGaN product line is the world’s first commercial REO-based family of ‘III-N semiconductors’ with scalable GaN-on-Si wafers. Translucent’s use of crystalline REO layers provides stress relief and wafer flatness through customized lattice engineering, leading to a high quality growth surface. In addition, the wide bandgap of the REO layer is expected to lead to much higher breakdown-voltage characteristics for FETs grown on vGaN.

vGaN stands for “virtual gallium nitride.” It provides a semiconductor growth surface that has the physical properties of GaN, but utilises a silicon substrate upon which is grown an epilayer of REO material that accommodates a top epilayer of Group III nitrides such as GaN. The vGaN substrate enables for the first time, industry-standard MOCVD growth processes with the low cost structures and economies of scale currently enjoyed by the silicon industry.

Michael Lebby, Translucent’s general manager, noted, “We are bringing a decade of Translucent REO epitaxial experience to bear on the challenge of enabling GaN growth to scale cost-effectively well beyond current limitations. Our vGaN platform is an ‘on-silicon’ technology, allowing us to harness mature silicon-substrate technologies and their low costs, and we expect this to have an extremely beneficial impact in driving down costs for GaN-based LEDs and FETs.”

GaN is typically grown on sapphire substrates, which are significantly more expensive at large diameters, especially 200 mm and larger. Additionally, a major challenge facing device manufacturers today is the handling of the large, heavy, and expensive sapphire wafers. Such handling may require the purchase of special handling equipment for the fabrication plants. Conversely, the widely-used infrastructure of fabrication plants that are ready to run silicon wafers up to 200 mm already exists. This makes large-diameter silicon an ideal choice to bring economies of scale into the lighting (LED) and power electronics (FET) industries.

Translucent’s vGaN wafers are already available today at 100 mm diameters, with 150 and 200 mm becoming available during the next year.

About Translucent:
Translucent, Inc., a subsidiary of Australian listed company Silex Systems Limited. (SLX: ASX), is an advanced materials company founded in 2001 that focuses on using rare-earth oxides to provide low-cost, silicon-based templates for epitaxial growth of semiconductors. With its emphasis on GaN- and GaAs-compatible growth platforms, Translucent is developing products for the solar, power FET, and solid-state lighting (LED) industries. vGaN is a registered trademark of Translucent, Inc. More information is available at www.translucentinc.com and www.silex.com.au.

FEATURED

WHITE PAPER - LEDs Lead the Way for Horticultural Lighting

WHITE PAPER - LEDs Lead the Way for Horticultural Lighting Horticultural lighting is one of the fastest growing markets in the LED lighting industry today. Currently estimated at being worth $690 million dollars annually by LEDInside, this figure is projected to reach billions in the coming years. Read more »

FEATURED

LUXTECH Introduces FLEX Color, Architectural Grade RGB Tape

LUXTECH Introduces FLEX Color, Architectural Grade RGB Tape LUXTECH, a leading American manufacturer of architectural grade LED modules, introduces FLEX Color to their line of flexible LED strips. The RGB strip light is populated by high quality LEDs with tight binning to maintain color consistency. Read more »

FEATURED

Job Opportunity

Job Opportunity Synergy 21 has been a successful, well-known brand in the lighting industry for around 9 years. We satisfy our customers with top-notch planning, development, production, and distribution of high-quality lighting fixtures. We also offer an attractive working environment to over 200 employees at 6 ... Read more »

FEATURED

XP-G2 High Efficacy LEDs Use Less Power, Drop-in Compatible

XP-G2 High Efficacy LEDs Use Less Power, Drop-in Compatible Cree, Inc. announces the new High Efficacy (HE) version of the XLamp® XP-G2 LED that delivers improved performance compared to standard XP-G2 LEDs, with higher output and greater efficiency to enable smaller, lighter, lower-cost designs. The original XLamp XP-G2 LED pioneered a broad set of LED ... Read more »

EDITORIAL

High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »

page_peel