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HP'realizes the Memristor -- the missing fourth fundamental circuit element

Sat, 24 May 2008 18:47:51 GMT

clipped by: rj3sp

The Mysterious Memristor By Sally Adee

Researchers at HP have solved the 37-year mystery of the memory resistor, the missing 4th circuit element.

Chua deduced the existence of memristors from the mathematical relationships between the circuit elements.

Chua proposed the memristor purely for the mathematical aesthetics of it, as a class of circuit element based on a relationship between charge and flux.

Clip Source: www.electronicsweekly.com

HP nano device implements memristor

HP Labs has made a nano-scale device which stores data, explains previous anomalies in nano-device characteristics, and may be able to act as a synapse in analogue neural networks. It is also the first physical implementation of the memristor, claims HP, a theoretical partner to resistors, capacitors and inductors invented in 1971.

HP also sees the junction as possible component of artificial brains. "It is very similar to a brain synapse," said spokesman Harrah. "You could simulate a brain with transistors as neurons and a bunch of these as synapses."

Electronics' 'missing link' found

Fri, 02 May 2008 06:52:00 GMT

clipped by: JediKnut
clipper's remarks: Interesting read... with this, possibilites for reducing the size of most electronics (PCs, mobile phones, etc.) just gets bigger.

Clip Source: news.bbc.co.uk

Electronics' 'missing link' found

Details of an entirely new kind of electronic device, which could make chips smaller and far more efficient, have been outlined by scientists.

The new components, described by scientists at Hewlett-Packard, are known as "memristors".

The devices were proposed 40 years ago but have only recently been fabricated, the team wrote in the journal Nature.

They have already been used to build novel transistors - tiny switches that are the building blocks of all chips.

"Now we have this type of device we have a broader palette with which to paint our circuits," Professor Stan Williams, one of the team, told the BBC last year.

Total recall

Memristors were first proposed in 1971 by Professor Leon Chua, a scientist at the University of California, Berkeley.

They are the "fourth" basic building block of circuits, after capacitors, resistors and inductors.

"I never thought I'd live long enough to see this happen," Professor Chua told the Associated Press.

Tags: electronics, memristors

H.P. Unveils New Memory Technology

Wed, 30 Apr 2008 20:35:20 GMT

clipped by: arifsali
clipper's remarks: This makes them function like biological synapses, which would be ideal for many artificial intelligence applications ranging from machine vision to understanding speech.

Clip Source: www.nytimes.com

A team of Hewlett-Packard scientists reported Wednesday in the science journal Nature that they have designed a simple circuit element they believe will enable tiny powerful computers that could imitate biological functions.

The device, called a memristor, could make it possible to build extremely dense computer memory chips that use far less power than today’s DRAM memory chips, which are rapidly reaching the limit in how much smaller they can be made.

The memristor, an electrical resistor with memory properties, may also make it possible to fashion advanced logic circuits, like a class of reprogrammable chips known as field programmable gate arrays, that are today widely used for rapid prototyping of new circuits and for custom-made chips that need to be manufactured quickly.

Potentially even more tantalizing is the memristors’ ability to store and retrieve a vast array of intermediate values, not just the binary 1s and 0s as conventional chips do.

Tags: memory, chips, hp, science