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Phononscattering
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Re: Sounds a bit like a tunnel diode
Phononscattering   9/9/2013 3:33:34 AM
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It definitely IS a tunnel diode. But not a semiconductor but a metal electrode one. The difference is, that the semiconductor tunnel diode of the 60ies shows a region of negative differential resistance which allows some interesting applications as oscillator nd so on. The MIM diode can not show this kind of behavior due to the different band structure of the electrodes.

My current understanding of the MIIM diode is, that its main application is as a demodulator/detecter for very high freqiencies.

resistion
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missing point about tunneling
resistion   9/8/2013 6:13:33 AM
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A tunneling-based device may be ideally designed or optimized for high nonlinearity. But it should be recognized that tunneling is not expected to be a high current output mechanism matching CMOS. A MOSFET that is off is already a tunneling barrier (reverse bias pn junction depletion zone) with nonlinearity.

Kinnar
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Re: Major Technology Achievement
Kinnar   9/8/2013 5:59:59 AM
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Yes quite true, the industries are desperately looking for the CMOS alternative that can work beyond Gigahertz, since this metal alternatives have got bandwidth ranging upto Terahertz, if this time the technology gets commercially accepted it will really open a new era.

goafrit
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Re: Major Technology Achievement
goafrit   9/8/2013 5:57:21 AM
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Is this about CMOS or the material? I think we can still have CMOS design paradigm with another material beside Silicon. I hope we crack this code soon as it is long overdue. Something needs to help provide a new path for the continuation of Moore's law

Yog-Sothoth
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Sounds a bit like a tunnel diode
Yog-Sothoth   9/8/2013 4:14:10 AM
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Tunnel diodes were in the 60's the solution looking for a problem. But being two terminal they never caught on. Input/output isolation of two terminal devices is always going to be a problem.

 

 

Ron Neale
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Re: What does it do? Light or uW as third terminal
Ron Neale   9/7/2013 3:55:06 PM
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Phononscattering "How is this supposed to "beat CMOS" or lead to transistors? My understanding so far is, that this is a two- not three terminal device. So it can not replace a transistor."

For a two terminal device structure, think of light or microwave input as the third terminal. Where the device is mounted in a lightwaveguide or a microwave guide. As we push frequencies higher those two will tend to merge. Quantum  coupling efficiency will be the equivalent of gain.

The reliability of MIMs has been a problem in the past and limited widespread use. Given reliability they may find application in optical detectors in high speed backplanes. Who knows when TSVs run out of signal carrying capacity optical detection MIMs might allow TSV to be just holes!!

 

 

resistion
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Re: What does it do?
resistion   9/7/2013 2:14:29 PM
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http://ecee.colorado.edu/~moddel/QEL/Papers/Rockwell08.pdf

 

the diode is hardly nonlinear enough.

R_Colin_Johnson
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Re: What does it do?
R_Colin_Johnson   9/7/2013 7:14:12 AM
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Thanks for the context and references. Yes, these metal-insulator structures seem to be one of those eternally "almost here" technologies that researchers just keep plugging away at.

 

Phononscattering
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Re: What does it do?
Phononscattering   9/7/2013 4:33:09 AM
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Ok, after some web searching I found comprehensive information. Seems like the technology itself is not new and has already performed well in the past, but failed commercially due to lack of differentiating applications.


Too bad the article mentions none of this

 

http://ecee.colorado.edu/~moddel/QEL/MIIM_Overview.pdf

http://ecee.colorado.edu/~moddel/QEL/Phiar.html

http://ecee.colorado.edu/~moddel/QEL/Papers/Rockwell08.pdf

 

 

 

resistion
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Manager
Re: What does it do?
resistion   9/7/2013 3:25:01 AM
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Yes as two terminal, a larger voltage is needed to drive a current compared to a transistor, which uses a third terminal to modulate current.

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