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Technology Stocks : WDC/Sandisk Corporation

WDC 173.75

+6.6%

10:42 AM EST

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To: rll who wrote (10958)	5/18/2000 6:53:00 AM
From: Ausdauer	Read Replies (1) of 60323

Another interview with IBM's Stuart Parkin... ...relating to the application of the GMR effect in solid state magnetic memory (MagRAM) appeared in this month's Mobile Computing and Communications Magazine. MRAM essentially is a high-density memory chip that doesn't lose information when power is switched off. In traditional DRAM (dynamic RAM) chips, the bits of data are stored as a charge on a capacitor. This has worked well for 20 years but requires a constant flow of electricity to the memory chips or all data is lost. By contrast, MRAM stores bits as the direction of magnetization in ultrathin molecular layers; the bits of data are stored like north and south poles on a magnet. In a real sense, MRAM offers the best attributes of flash memory (nonvolatile storage that doesn't require electricity to operate) and traditional DRAM's fast operation. The major snag at the moment is the difficulty in manufacturing MRAM: The layers of magnetic materials are only four atoms thisk and require a new geneeration of production equipment to move from the laboratory to the notebook. here is some older drivel I posted on Parkin... Message 13300051 ...and a pedestrian interpretation of the status of FRAM... Message 13344014 Ausdauer

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