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IBM, Macronix, Qimoda claim fast phase-change memory

Posted: 13 Dec 2006 ?? ?Print Version ?Bookmark and Share

Keywords:memory? phase-change memory? flash-memory? IBM? Macronix?

IBM, Macronix and Qimonda claimed at the International Electron Devices Meeting (IEDM) early this week that they have developed a phase-change memory prototype that boasts switching speeds at more than 500 times faster than traditional flash-memory technologies.

The device's cross-section, which measures 3-by-20nm in size, is also said to use less than one-half the power to write data into a cell, according to the companies. In addition, the technology enables devices for the 22nm node and beyond. At the heart of the technology is a ''tiny chunk'' of semiconductor alloy that can be changed rapidly between an ordered, crystalline phase.

The new memory material is a germanium-antimony alloy to which small elements have been added to enhance properties. More details will be described at the IEDM conference in a paper, entitled ''Ultra-Thin Phase-Change Bridge Memory Devices Using GeSb.''

- Mark LaPedus
EE Times

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