has secured second round funding of £2.5 million (~US$4.2m) from Octopus
Ventures, IP Group, The University of Surrey and other investors. The capital
will help to commercialize an innovative low-temperature growth process for
carbon nanotubes, targeted for use as an interconnection technology in semiconductor
devices. The innovation will help silicon integrated circuit manufacturers to
overcome a critical problem that threatens the evolution to next-generation
geometry sizes, speeds and power conservation.
Octopus Ventures, a specialist investor in early-stage and expanding companies
provided £1.75m (~US$3m). Surrey NanoSystems' initial venture capital
investor IP Group - through IP Venture Fund - together with The University of
Surrey and other investors provided £0.75m (~US$1.3m).
"The semiconductor industry urgently needs a new interconnection technology.
If you can solve the problem of growing precision carbon nanotubes at silicon-friendly
temperatures - and we have - it opens up a massive potential market," says
Ben Jensen, CTO of Surrey NanoSystems. "We expect to be the company that
is able to offer a viable new interconnection process for high-volume semiconductor
fabrication, one that really exploits the incredible performance properties
of carbon nanotubes."
Manufacturers currently use copper to provide the vertical interconnections
required for integrated circuit (IC) fabrication, but this material is running
into technical difficulties as the geometry sizes of ICs shrink. Carbon nanotubes
(CNTs) can be structured to act as extremely efficient conductors, but their
adoption as a replacement for copper has been hindered by the fact that conventionally-grown
CNTs require temperatures of around 700 degrees C, too high for semiconductor
processing. In contrast, Surrey NanoSystems’ fabrication system and process
allows CNT structures to be grown at silicon-friendly processing temperatures
of 350 C or less.
Surrey NanoSystems was established in 2006 as a spin-out from the University
of Surrey’s Advanced Technology Institute (ATI), with the help of individuals
having a successful background in the design of thin-film deposition systems.
ATI had developed pioneering intellectual property concerning the fabrication
of CNTs at low temperature. This combination of know-how allowed the company
to quickly develop an architectural platform called NanoGrowth. This equipment
implements a unique process incorporating ATI's patented know-how, and several
unique additional techniques, that deliver the conditions for the growth of
precision CNTs at both the temperatures and densities needed for state-of-the-art
CMOS ICs. The initial development effort was supported by first round funding
from IP Group, who specialize in commercializing intellectual property originating
from research-intensive institutions.
The initial focus of Surrey NanoSystems has been the provision of equipment
to developers researching and prototyping CNTs to advance the performance and
integration density of semiconductors and electronic devices. The company's
focus is now optimizing its technology for the mass-volume manufacturing environment,
by scaling the hardware and refining and scaling the materials processing technology.
The new funding will support this evolution, allowing Surrey NanoSystems to
greatly extend its engineering and development capabilities with a new technology
laboratory, several brand-new systems of its own design, and more staff. These
resources will be used to scale the company's materials growth technology from
its current 100 mm wafer size capability, to the 300 mm sizes used in commercial
wafer fabrication plants. Surrey NanoSystems will also add an industry-standard
SEMI interface to its process equipment, allowing it to be integrated easily
onto standard wafer-processing cluster tools. Alongside this development work,
Surrey NanoSystems is pursuing technology partnerships with both semiconductor
manufacturers and volume cluster tool suppliers, to shorten the path to market
for its technology.
Posted Ausgust 24th, 2009