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Programmable metallization cell : ウィキペディア英語版 | Programmable metallization cell
The programmable metallization cell, or PMC, is a novel non-volatile computer memory developed at Arizona State University. PMC have been identified as an emerging research device of interest by the International Technology Roadmap for Semiconductors for its ability to scale, in performance, beyond NAND Flash memory.〔(ITRS Reports )〕 PMC is one of a number of technologies being developed to replace the widely used Flash memory, providing a combination of longer lifetimes, lower power, and better memory density. Infineon Technologies, who licensed the technology in 2004, refers to it as conductive-bridging RAM, or CBRAM. CBRAM® became a registered trademark of Adesto Technologies in 2011.〔(Adesto Technologies Trademarks )〕 NEC has a variant called “Nanobridge” and Sony calls their version “electrolytic memory”. The PMC technology was developed by Dr. Michael Kozicki, professor of electrical engineering at Arizona State University.〔(U.S. Patent 5,761,115 )〕〔(U.S. Patent 6,418,049 )〕〔(U.S. Patent 6,487,106 )〕〔(U.S. Patent 7,132,675 )〕〔(U.S. Patent 7,372,065 )〕〔(U.S. Patent 7,728,322 )〕In 1996, Axon Technologies was founded to commercialize the PMC technology.〔(Micron Technology Licenses Axon's Programmable Metallization Cell Technology – Business Wire – published 18 january 2002 - viewed 31 march 2014 )〕 ==Description==
PMC is a two terminal resistive memory technology developed at Arizona State University. PMC is an electrochemical metallization memory that relies on redox reactions to form and dissolve a conductive filament. The state of the device is determined by the resistance across the two terminals. The existence of a filament between the terminals produces a low resistance state (LRS) while the absence of a filament results in a high resistance state (HRS). A PMC device is made of two solid metal electrodes, one relatively inert (e.g., tungsten or nickel) the other electrochemically active (e.g., silver or copper), with a thin film of solid electrolyte between them. The PMC technology has been licensed to Infineon (Qimonda), Micron Technology, and Adesto Technologies, and several other large semiconductor companies. OEMs have also shown interest in the new technology.
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