Scientists claim to have invented a new way to make a fundamentally different computer memory chip that would be much faster and of higher capacity. The device, named "memristor", has electronic properties that make it suitable for both for computing and for faster, denser memory, the researchers said and claimed that the chip can be made much more cheaply, using current semiconductor techniques.
The name is a portmanteau of memory and resistor, because its resistance changes depending on how much current has passed through it; it "remembers" that value even after power is turned off, the researchers said.
Current designs employ expensive or exotic materials, but a real memristor revolution could hinge on making them compatible with existing semiconductor technology, based overwhelmingly on silicon. Such attempts have been made before, but previous devices reported in 2010 were fairly delicate and worked only under vacuum.