memristor


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memristor

(MEMory ResISTOR) A non-volatile memory technology that can change its resistance in varying levels. It can offer resistance in two states for a digital 0 or 1 or to levels in between to go beyond a binary system.

In 2008, HP demonstrated a memristor comprising a cell made of two layers of titanium dioxide. One layer is conductive because it is missing a few oxygen atoms. When a positive charge is applied to the layer with the missing atoms, the vacancies are pushed into the other layer, making it conductive as well and changing its resistance. The more the cell is charged, the lower its resistance. Negative charges reverse the effect.

Very Fast and High Density
Two distinct advantages of memristors are that moving the vacancies between the adjacent levels can be done much faster than other known switching methods, and the cell density approaches that of hard disks. Theorized by Leon Chua in the early 1970s, and if commercially viable, memristors may replace flash memory and dynamic RAM (DRAM) in the future. See future memory chips and RRAM.
References in periodicals archive ?
Volatile memories can further be sub-categorised into Dynamic Random Access Memory and Static Random Access Memory and Non-Volatile Memories can further be divided into Memristor or Resistive Random Access Memory (ReRAM), Phase-Change Random-Access Memory (PC-RAM), Magneto resistive Random-Access Memory (M-RAM), Ferroelectric Ram (F-RAM) On the basis of application the market is segmented into cache memory, Embedded MCUs, Smart Cards, Mobile Phones and others.
According to the companies, this partnership will centre around HP's Memristor technology and expertise and SanDisk's non-volatile ReRAM memory technology and manufacturing and design expertise to create new enterprise-wide solutions for Memory-driven Computing.
The partnership will center around HP s Memristor technology and expertise and SanDisk s non-volatile ReRAM memory technology and manufacturing and design expertise to create new enterprise-wide solutions for Memory-driven Computing.
TEHRAN (FNA)- Iranian researchers from Sharif University of Technology used memristor nanostrcutures as programmable analogue memories to save parameters of phase calculation methods.
HP made headlines in May 2008 when a team led by Stanley Williams introduced the memristor in Nature and demonstrated its potential for fast, high-capacity storage (SN: 5/24/08, p.
The resistance of a ferroelectric memristor can be changed continuously by an applied voltage.
The chemistry of the new electronics and electrics is key to its future, whether it is invisible, tightly rollable, biodegradable, edible, employing the memristor logic of the human brain or possessing any other previously- impossible capability in a manufactured device.
Andy Thomas from Bielefeld University's Faculty of Physics and his colleagues constructed a memristor that is capable of learning a year ago.
A memristor is a "resistor with memory" that sits alongside a resistor, capacitor and inductor in a circuit, and has the potential to replace storage in smartphones, tablets, notebooks and servers.
They have shown that a single memristor can do the work of multiple transistors and thereby shrink some circuits by a factor of ten.
An example is the memristor, a new electrical device that might provide significant gains in power efficiency, which is under development by HP-Labs.
Key Features of the Report: The report provides essential patent data for ReRAM and Memristor including: - Time evolution of patent publications and countries of patent filings.