MEDIA RELEASE
8 August 2005
Nano Cluster Devices Announces New Nano-Patterning Technologies
Two new technologies for fabricating tiny electronic devices have been unveiled by Christchurch, New Zealand, based Nano
Cluster Devices Ltd (www.nanoclusterdevices.com).
The first technology is a new variation on the techniques used by the semiconductor industry to produce computer chips.
René Reichel, a PhD student who played a key role in developing the techniques, said, “Our new technique eliminates one
of the processing steps that is currently needed to do lithography.”
The new technology can be used to produce patterns in almost any shape, and has been demonstrated by fabricating a tiny
map of New Zealand, as well as electronic devices more than 1000 times smaller than the thickness of a human hair. All
of NCD’s technologies are based on the assembly of clusters, which are particles with dimensions of a few billionths of
a metre.
Map of New Zealand produced using NCD’s no-liftoff lithographyTM technique. About 100,000 of these maps would fit on the
head of a pin. © Nano Cluster Devices Ltd 2005. Further images are available at
http://www.nanoclusterdevices.com/index.cfm/Technology/no_liftoff.
The second technology is an improvement on stencilling techniques that are widely used in industry, but often suffer
from problems where the stencils “clog”.
“It’s a bit like spray painting through a stencil, except that we are spraying clusters and not paint”, says Dr Jim
Partridge who was the lead researcher on both projects. “By controlling the conditions so that the clusters do not stick
to the stencil, we have shown that we can eliminate clogging and make very narrow wires.”
“These are really significant developments,” says NCD Chief Scientist Dr Simon Brown. “These new technologies allow
faster and easier patterning of nanodevices, and may provide significant economic and technical advantages over existing
technologies used by the semiconductor industry.”
The new technologies were developed by Jim Partridge, René Reichel and David Mackenzie in the Department of Physics and
Astronomy at the University of Canterbury on behalf of NCD. NCD has filed patent applications on the new technologies in
addition to those for its previously announced methods of self-assembling clusters (or nanoparticles) into nanowires.
Nanotechnology is an emerging field widely seen as having as great an importance as biotechnology and information
technology. Nanotechnology will have tremendous impacts in these fields as well as in electronics, medicine and many
others. NCD’s self-assembled nanowires could also be used as the key components in transistors or as interconnects
between devices on silicon chips. Nanowires therefore have the potential to enable much smaller and faster computers
than those possible today.
NCD’s Dr Brown has recently been invited to present at the prestigious NanoCommerce / SEMI NanoForum in Chicago in early
November. Last month, NCD’s nanowire technology was showcased to the international semiconductor industry, after
selection by a panel of industry experts for the Technology Innovation Showcase (TIS) in conjunction with the SEMICON
West conference in San Francisco in July.
ENDS
About Nano Cluster Devices Ltd.
Nano Cluster Devices Ltd was formed in early 2003 to commercialize a unique combination of top down and bottom up
approaches to nano-technology. The key aspect of the technology is that nano-wires can be self-assembled between
electrical contacts without the time consuming and expensive manipulation that typically hinders the production of
nano-devices. For additional information about Nano Cluster Devices Ltd., visit their website at
www.nanoclusterdevices.com.
Nano Cluster Devices Limited has developed novel methods for taking clusters of atoms and forming them into electrically
conducting wires. These wires are so small they can only be seen with the aid of an electron microscope. They have a
wide range of applications in many of the world’s multi-billion dollar industries. A comprehensive Patent Portfolio has
been established.