A new on-chip voltage converter has been developed and its characteristics have been examined. The converter is a feedback-type voltage regulator, and it supplies a reduced voltage to an entire RAM circuit. A novel timing activation method was introduced to save power. The converter has been implemented on an experimental 4-Mbit dynamic RAM. It was found that an even faster access time and higher reliability compared to a conventional design could be achieved by using an on-chip voltage converter and shorter channel transistors. This voltage converter is suitable for high-density, high-speed, and high-reliability DRAM's with submicrometer transistors.
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