Samsung Electronics Co. Ltd. has developed a prototype flash memory chip that has a capacity equal to the company’s current largest commercial flash memory but at a smaller physical size, it said Monday. "The new chip can store 4Gb (or 512MB) of memory and has a memory gate that is 70 nanometers in size. Samsung is currently mass producing 4Gb chips with 120-nanometer, or 0.12-micron, memory gates and is also preparing to begin production of 90-nanometer versions."

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