Message from discussion ReRAM ??
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From: Jim Thompson <To-Email-Use-The-Envelope-I...@On-My-Web-Site.com>
Subject: Re: ReRAM ??
Date: Sun, 18 Nov 2012 16:25:30 -0700
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On Sun, 18 Nov 2012 15:16:14 -0600, flipper <flip...@fish.net> wrote:
>On Sat, 17 Nov 2012 20:37:27 -0500, "P E Schoen" <p...@peschoen.com>
>>"flipper" wrote in message
>>> The 'elements' fit in the formed quadrants. Going clockwise you
>>> have in the lower left an inductor. Upper left is the resistor and
>>> upper right is the capacitor. The lower right is either 'missing'
>>> or a 'memsistor'.
>>(view fixed font)
>> resistor | capacitor
>> current <---------+------------> charge
>> inductor | ?????
>>Itï¿½s a "flux capacitor"!
>>It might also be modeled by a battery or a motor. Instead of *dissipating*
>>power as voltage and current (resistor), it *stores* power in the form of
>>flux and charge, either by chemical reaction or by rotational inertia.
>The units for a memristor is said to be Ohms. It dissipates just like
>a resistor. This has been used to argue it's not a new fundamental
>device since, it is claimed, a new fundamental device would require a
>new unit of measure. I'm not saying that's 'true', just that it's an
>argument made. Note, however, that they're both a ratio of (in
>generalized terms) 'quantity vs potential' with the difference being
>one is the differential of the other. e.g. dq-idt. It might be better
>to call the memristor unit Rt, or OhmT, to accommodate the 'memory'
>Or, put another way, it strikes me that saying 'ohms' for a memristor
>is akin to noting the volt and current of an inductor or capacitor at
>a specific moment in time. It's valid for that moment but is different
>at others and the same goes for the memristor's 'Ohms'. It changes
>over time, depending on flux and charge, so Ohms is an insufficient
>measure of it's overall, time variant, characteristic.
>A battery is not a passive device and a motor is not fundamental as it
>can be modeled by fundamental devices.
>Someone mentioned the diagonal. Yes, the inductor-capacitor diagonal
>are energy storage elements. The resistor-memristor diagonal are
From considerable searching I conclude that the ReRAM is something
your door-to-door sweeper salesman might be hawking. Lots of claims.
Little do. Those who _were_ going to do non-volatile RAM with it are
"delaying" entry into the market for several years.
Even ran across a thesis and several papers where the "demonstrated"
Spice model had dangling nodes ;-)
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