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Computer chips get tough
Nature (online) ^
| August 25, 2004
| Mark Peplow
Posted on 08/25/2004 3:11:23 PM PDT by PeaceBeWithYou
click here to read article
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This is a big one.
Enjoy.
To: PeaceBeWithYou
Buy order for 10,000 shares please!
2
posted on
08/25/2004 3:15:34 PM PDT
by
Heff
("Liberty is not America's gift to the world, it's the Almighty's gift to humanity" GW Bush 4/12/04)
To: PeaceBeWithYou
The technique may pave the way for tougher and more efficient circuits.
Good.
< |:)~
3
posted on
08/25/2004 3:16:13 PM PDT
by
martin_fierro
(_____oooo_( ° ¿ ° )_oooo_____)
To: PeaceBeWithYou
4
posted on
08/25/2004 3:17:24 PM PDT
by
NonValueAdded
(When it came to Intelligence, Kerry was absent)
To: PeaceBeWithYou
Cree Research must be jealous or in with this fella.
5
posted on
08/25/2004 3:27:23 PM PDT
by
dr_who_2
To: PeaceBeWithYou
"We believe silicon carbide is one of the most excellent materials for high-power electronic devices," says Takatori.Just think, 10 years from now we are all going to be laughing our butts off at this statement.
6
posted on
08/25/2004 3:30:39 PM PDT
by
rudypoot
To: dr_who_2
Cree is working on SiC solar cells, IIRC.
7
posted on
08/25/2004 3:40:31 PM PDT
by
PeaceBeWithYou
(De Oppresso Liber! (50 million and counting in Afganistan and Iraq))
To: PeaceBeWithYou
Silicon carbide is still far below silicon in crystal quality. However, it also has a very high thermal conductivity, so that silicon circuits on a SiC substrate could operate at higher speed and power levels than just silicon.
8
posted on
08/25/2004 4:50:38 PM PDT
by
expatpat
To: PeaceBeWithYou
9
posted on
08/25/2004 4:54:49 PM PDT
by
Porterville
(How can the median price of a home in CA be 450,000 dollars? How? Where is the money?)
To: expatpat
Still cheaper than diamond, yes (although I've heard rumors of an upcoming revolution in synthetic diamond production)?
10
posted on
08/25/2004 5:24:43 PM PDT
by
dr_who_2
To: PeaceBeWithYou
When silicon electronics are used to control motors about half of the electrical energy that flows through the circuit is wasted. In contrast, silicon carbide circuits would be up to 70% efficient, Wright says. This is because silicon can only handle low-frequency pulses, whereas silicon carbide can carry electricity at a much higher frequency, incurring far less energy loss. Something really wrong here...
11
posted on
08/25/2004 5:28:04 PM PDT
by
sionnsar
(Iran Azadi ||| Resource for Traditional Anglicans: trad-anglican.faithweb.com)
To: rdb3
12
posted on
08/25/2004 5:30:05 PM PDT
by
sionnsar
(Iran Azadi ||| Resource for Traditional Anglicans: trad-anglican.faithweb.com)
To: PeaceBeWithYou
13
posted on
08/25/2004 5:34:21 PM PDT
by
null and void
(KERRY'S A POODLE: He's French, A Rich Lady's Pet, Won't Protect You, and Spends lots on grooming...)
To: sionnsar
What is wrong is the implication that there is a huge waste in electricy in current chips. Most run on 5v or less. (smaller technologies .13um and lower are running on around 3v)
14
posted on
08/25/2004 5:46:07 PM PDT
by
Bane
To: sionnsar
It's interesting...
Now all we need is some nice cheap room-temp superconducting material... and I'll only have refuel my 5 terahertz laptop about once every couple of years. :-)
Of course, it would be obsolete by the time I need to change the battery, so why bother?
15
posted on
08/25/2004 5:47:29 PM PDT
by
Ramius
(The pieces are moving. We come to it at last. The great battle of our time.)
To: Bane
Yes, for logic chips.
The power semiconductor industry OTOH...
16
posted on
08/25/2004 5:52:47 PM PDT
by
null and void
(KERRY'S A POODLE: He's French, A Rich Lady's Pet, Won't Protect You, and Spends lots on grooming...)
To: NonValueAdded
17
posted on
08/25/2004 5:52:55 PM PDT
by
flashbunny
(Kerry helped move jobs to china - http://www.flashbunny.org/commentary/kerryoutsourced.html)
To: sionnsar
I think they are referring to eddy-curent losses in the substrate due to the em waves caused by the high-frequency switched currents. SiC has a lower conductance and would be better than silicon. (However, SOS {silicon on sapphire} is better than SiC.)
18
posted on
08/25/2004 5:54:35 PM PDT
by
expatpat
To: expatpat
SOS is sooooo passé.
SOI over a BOx rocks!
19
posted on
08/25/2004 7:12:05 PM PDT
by
null and void
(KERRY'S A POODLE: He's French, A Rich Lady's Pet, Won't Protect You, and Spends lots on grooming...)
To: PeaceBeWithYou
Just one question? Since when has government been interested in less expensive OR more efficient (I'm assuming they would be a big user)? Oh, and since when did businesses that make this stuff get interested in producing a better product, especially if it needs less frequent replacement? And about utilities....remember how they fought solar energy. They aren't going to be quick to adopt anything that might cut into their profit margin. Ok, so that's two and half questions. < /skeptical consumer >
20
posted on
08/25/2004 7:35:36 PM PDT
by
sweetliberty
("A wise man's heart inclines him to the right, but a fool's heart to the left." (Eccl. 10:2))
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