Home > Nanotechnology Art Gallery > Vik Olliver
Click image to enlarge. All images © respective artist or company.
Click for Vik's Website, and here for
thumbnails of Vik's other work. Among others, he has done work for
The Artemis Project and TransOrbital Inc. See his
Laingholm On The Launchpad, a "slightly irreverent monthly review of what's cooking in the space business."
SmallTalk is Vik's take on high tech, with his own twist!
While some researchers try to figure out how to create really tiny electrical
devices, others take on the practical task of figuring out how to make
wires small enough to connect them up to silicon chips with. Penn
State University has
a way of not only making very fine wires, but of spacing them out regularly
while they're at it. "We have known how to make smaller and smaller structures
by using techniques that have been developed for the fabrication of computer
chips, and we also have known how to make molecules bigger and bigger,"
says Paul Weiss, associate professor of chemistry at Penn State. "But that
intermediate region between the two approaches has been essentially inaccessible,
and our technique of using 'molecular rulers' represents a step toward
bridging that gap."
The way they make these rulers is a bit tricky to get your head around, so I've
made this picture. It starts off with a trick called "electron
beam lithography," which is basically etching things with a very fine
beam of electrons. It's not practical to etch thick wires with this trick,
but a strip (1) of the base material can be 'seeded' by it. A layer of
unpleasant organic stuff (2) called mercaptoalkanoic acid grows on the
seed, spreading out like an ANZAC biscuit on a baking sheet. They know
how fast it spreads, so they know how much of the base it has covered.
Finally, gold (3) is used to fill in the gaps, and the gold nanowires are
complete. The bigger the biscuit, the thinner the wires.
The wires in the picture are 15 nanometers wide, or roughly 70,000 to
the millimeter. So that's not a lot of gold. The next trick is to figure
out how to move the other end around and stick it to the right place on
a silicon chip, but they're working on that in other places.
6.5Mb AVI of a Dexlerian assembler arm
(a high speed connection helps)