news digest compound semiconductor
rhombus4
CST acquires the UK fabrication assets of Intense UK physicists tie light in
Ltd - 15 Jan, 2010 knots ‘for laser
CST announced today that it has acquired favourable economics of the foundry
developments’-
the UK fabrication assets of Intense Ltd business model in the Optoelectronics
based in Hamilton Scotland. As part of the sector. It also affirms our long held belief in
19 Jan, 2010
transaction Intense will retain a minority the “pure-play” foundry.
stake in CST. This is in line with CST’s We are seeing solid growth in established
expansion strategy underpinned by a £4M markets such as FTTH and Defence which A team of scientists at UK universities have
investment in May 2009, and further has supported our expansion in the current tied light in knots, a development they claim
strengthens CST’s Optoelectronic foundry recessionary period. Increased capacity is to be important to laser technology. Light
business model with new technical required to support further growth in these has been tied in knots by a team of
capability, engineering resource and markets and to allow us to develop new physicists in the UK, a development which
production capacity. foundry offerings for emerging technologies is said to be important to laser technology
driven by ‘cleantech‘ applications in sensing, for a variety of industries, which could
The deal will allow CST to consolidate all energy and medical markets. include the semiconductor sector.
production activities in Hamilton and extend
the existing contract laser manufacturing We are investing now in order to be ready Physicists working at Southampton,
relationship with Intense. CST CEO Neil to take advantage of new opportunities that Glasgow and Bristol universities created
Martin commented. ‘This is a natural will certainly emerge through the global optical vortices with holograms which direct
progression of the acceptance of the economic recovery.’ the flow of light. The Nature Physics study
explained that although light can travel in a
straight line, it also flows in “whirls and
BNNTs grown on catalyst substrates
eddies”, forming optical vortices.
‘overcome difficulties’ - 18 Jan, 2010
Knot theory was used to design the
holograms and professor Miles Padgett,
from Glasgow University, said: “The
sophisticated hologram design required for
Scientists have overcome the previous in the resulting product, Yoke Khin Yap, an the experimental demonstration of the
difficulties faced when trying to grow associate professor of physics at the knotted light shows advanced optical
BNNTs on substrates. university, explained. control, which undoubtedly can be used in
future laser devices.”
Boron nitride nanotubes (BNNTs) have “We’ve been stuck for more than ten years
attractive properties such as being able to because nobody could grow them well on In an effort to find an explanation of atoms,
withstand very high heat and being the substrates. But now we can,” he added. Lord Kelvin began studying knotted vortices
“perfect” insulator, it has been claimed. “Carpets” of tiny fibres on a substrate made in 1867. Other laser developments which
However, despite their potential for from iron, nickel or magnesium oxide were could impact upon the semiconductor
developing high-powered electrical devices, used, allowing BNNTs to be assembled on industry is that made by the Japan Society
it is difficult to make nanotubes from boron these catalysts. Anything coated with this of Applied Physics, where researchers
and nitrogen, Michigan Technological carpet could be protected from anything observed a maximum wavelength of 506.4
University noted. Temperatures of over water-soluble and could be stain resistant. nanometres under pulsed operation - the
1,500 degrees Celsius are often required for BNNTs have the same atomic structure as longest reported for aluminium gallium
assembly and impurities are often common the semiconductor carbon nanotubes. nitride cladding-free III-nitride laser diodes.
Ferrotec Acquires the Temescal Division of Edwards Vacuum - 2010-01-20
Leading electron beam evaporative coating systems manufacturer growing full-spectrum LED and solid-state lighting.
brings expanded support for emerging compound semiconductor “As Ferrotec continues to expand support for evaporative coating
applications. Ferrotec (USA) Corporation, a global supplier of markets, we expect this acquisition to have strategic and synergistic
materials, components, and precision system solutions, today importance,” said Eiji Miyanaga, president of Ferrotec (USA)
announced that it has purchased the Temescal Division of Edwards Corporation. “By combining Temescal’s deposition process and
Vacuum, Inc. system engineering expertise with our complementary technology
portfolio and our strong global position in the semiconductor
Temescal, originally founded in 1952, is the leading manufacturer of industry, we intend to bring an enhanced product offering and play
electron beam-based evaporative coating systems with the largest an increased role in the rapidly growing compound semiconductor
install base of metallization tools addressing a broad range of market.”
materials used in the compound semiconductor industry. Key
applications for compound semiconductor include cellular, More information about Temescal products and the transition can be
satellite/cable TV, specialized opto-electronics, as well as the fast found at www.temescal.net.
16 www.compoundsemiconductor.net January/February 2010
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