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Technology Stocks : Applied Materials No-Politics Thread (AMAT) -- Ignore unavailable to you. Want to Upgrade?


To: Big Bucks who wrote (17330)1/21/2006 10:39:51 AM
From: robert b furman  Read Replies (1) | Respond to of 25522
 
Hi BB,

May well happen - seems as though Intel has been going it alone as they've gained in the low end of this market - they've been known to buy up small niche players though.

Is ATI fabless?

Bob



To: Big Bucks who wrote (17330)1/21/2006 2:07:52 PM
From: CrazyPete  Read Replies (2) | Respond to of 25522
 
I don't think it is in Intel's interests to take over the high end graphics chipset market. I do think it is in Intel's interests to raise the lowest common denominator, because that spurs the broader PC replacement cycle, as more applications, and even the OS, gradually come to depend on those features. But at the high end, I think fierce competition among ATI, NVDA, etc is good for Intel, because "early adopters", gamers, etc buy higher-end PCs, with higher margin CPUs, on a much faster replacement cycle. If Intel tries to cannibalize this market, and other players drop out, they'll inevitably slow down the rate of innovation and kill this market.

Intel has never attacked the high end, and it isn't for lack of skill/ability to do so. After all, Intel chips (i860) formed the core of many of SGI's high performance graphics systems. I think they will continue to improve the capabilities of their graphics chips to the extent that process improvements allow them to fit more features into a inexpensive low power chip. Eventually that will squeeze even the high end players but I think that is a few years off yet.



To: Big Bucks who wrote (17330)1/22/2006 5:41:13 PM
From: Proud_Infidel  Respond to of 25522
 
Carbon nanotube, molecule joined to create new transistor

R. Colin Johnson
EE Times
(01/20/2006 12:01 PM EST)

PORTLAND, Ore. — Columbia University researchers have successfully married a carbon nanotube with an organic molecule, creating what they said is the world's first hybrid carbon-nanotube/molecular transistor.

The experimental device enabled the chemical reaction in an application-specific organic molecule to be harnessed by the high carrier-mobility of carbon nanotubes.

"We have achieved something of a milestone by being able to wire up an ultrasmall transistor where we married carbon nanotubes with organic molecules," said Shalom Wind, senior research scientist at Columbia University (New York). "We are taking the best properties of both and optimizing them so that we can combine them into a single switch."

Wind joined Columbia in 2003 after a stint at IBM Research's T.J. Watson Research Center where he helped characterize nanotube transistors. Like IBM's original design, Columbia's molecular transistors used a carbon nanotube as the transistor channel. The researchers cut the nanotube and inserted an application-specific organic molecule to functionalize the resulting molecular transistor, leaving the nanotubes as the source — and drain — electrodes.

"Molecular transistors represent the ultimate in scaling, so we need to understand them," Wind said. "We grew our nanotubes in place on the substrate, made a gap and inserted the organic molecules, which have their own special properties, enabling them to be used, for instance, as sensors,"

The researchers successfully inserting several different types of organic molecules, and reported detailed test results for an application-specific organic molecule that changed its conductivity in response to Ph. This enabled the molecular transistor to act as a Ph sensor.

The insertion technique used nanoscale lithography and a oxidation process that prepared the severed ends of the nanotube for chemical bonding to the inserted molecule. By ensuring the gap cut in the nanotube was similar in size to the molecule to be inserted, the researchers were able to marry the ends of the nanotube to a single organic molecule.

The researcher was performed at Columbia University's Nanoscience Center