The Vast Universe of Tiny Technology
Tue Apr 23, 1:31 PM ET Jay Lyman, www.NewsFactor.com
Microelectrical-mechanical systems (MEMS), micro-unmanned aerial vehicles (UAVs) and nanotechnology all are big terms for extremely small technologies. But these miniature wonders are becoming commonplace in manufacturing, biotech, computing and other industries. While MEMS -- tiny silicon chips -- have been a part of automobile and other manufacturing for more than a decade, carbon-based nanotechnology is in its infancy, according to Gartner (NYSE: IT - news) Dataquest principal analyst Jim Walker.
"These are technologies, not products," Walker told NewsFactor. "I don't think there's any question some of this stuff can work."
Diagnostic Capsules
Among the most notable results of MEMS technology is a diagnostic capsule that contains a light-emitting diode (LED), an optical sensor, a battery and a transmitter, produced by Israel-based Given Imaging, Walker said.
The device, already in use in Europe and recently approved in the United States by the Food and Drug Administration (news - web sites) (FDA), replaces invasive surgical procedures with a pill that simply can be swallowed.
As for nanotechnology -- which works at the molecular level -- Walker said that applications are possible in the biomedical field as well as in computing, where companies are developing minuscule optical switches that generate or conduct light and electricity.
Silicon Gets Small
Walker described MEMS, also referred to as microsystems, as "an extension of semiconductor processing" in which actual equipment is derived from semiconductor techniques.
Historically, MEMS have been used as simple switches in manufacturing, with sensors that act based on pressure or other forces, according to Walker.
"What is happening now, in the last couple of years, is that companies have been able to develop entire gears, levers and motors out of silicon," he said. "These will help [reduce items in size] and make more energy-efficient devices and machines."
Medical Use and More
The Given Imaging capsule, which is intended for imaging humans' small bowel, is a prime example of MEMS technology, Walker said.
Other applications of silicon-based microsystems include such biomedical uses as an automated insulin diagnostic instrument and a pump for diabetics (news - web sites), and tiny tags for products in the grocery store and the home.
With components no wider than a human hair, MEMS technology also is paving a new path in computing as it is applied to everything from drives to displays.
Mighty Mini Building Blocks
Shrinking far below the MEMS' size is a newer technology known as nanotechnology, which involves molecular-size building blocks of carbon, Gartner's Walker explained.
"These can be manipulated to build a variety of structures" out of nanotubes and nanospheres, he said. "They are built from the bottom up, a molecule at a time."
Walker said that nanotechnology might allow researchers to inject cells with antibodies to fight cancer without harming other cells, or to develop molecular machines that can consume oil spills.
Nano Computing
Nanotechnology also is being used to create optical switches that can generate light and electricity, according to Walker, who alluded to projects by such companies as Agilent (NYSE: A - news) and Corning (NYSE: GLW - news).
"They're also looking at nanotechnology in the electronic world to see if they can store and dissipate charge for memory," he noted.
Yankee Group vice president Zeus Kerravala told NewsFactor that for now, nanotech is still a niche technology.
"I don't think there are many vendors that do that stuff," he said. "Even Intel (Nasdaq: INTC - news) doesn't get into that stuff."
Big Challenges For Small
Walker said that despite the huge potential offered by tiny technology, the barriers are numerous.
With MEMS and microsystems, he said, there is a "packaging dichotomy," as the silicon needs to be both interactive with its environment and protected from it.
Walker also noted that there is a lack of software design tools and standards for both MEMS and nanotechnology.
Still, he predicted, MEMS will continue to advance, and nanotechnology will be used in techniques and processes that will be seen in the next three to five years.
"I think you're going to see modified biotech structures," Walker said.
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