IBM, TDK team on new memory chips

IBM Corp. and TDK Corp. will work together to develop higher-capacity, more compact MRAM chips, the companies said Monday.

IBM and TDK will study how to use “spin momentum transfer” to make the cells that store data smaller. This could enable the production of smaller chips with higher capacity, necessary if the technology is to achieve more widespread adoption.Magnetoresistive RAM, also known as magnetic RAM, uses tiny magnetic fields rather than electrical charges to store data. It is a nonvolatile memory, meaning that like flash memory it retains data without the need for electrical power.

MRAM can be written to faster than flash memory, at speeds comparable to the dynamic RAM used in PCs to hold active programs and data, according to Freescale Semiconductor Inc., the first manufacturer to sell the technology.

One potential market for MRAM is for computers that can be turned on instantly, without the need to load software into memory each time on start up. However, the MRAM chips currently on the market have capacities of only a few megabits, adequate for embedded control systems but not enough for modern PCs.

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