Journal
IEEE JOURNAL OF SOLID-STATE CIRCUITS
Volume 40, Issue 1, Pages 168-176Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSSC.2004.837244
Keywords
crossbar switch; FPGA; nonvolatile memory; reconfigurable logic; solid electrolyte switch
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In this paper, a reconfigurable LSI employing a nonvolatile nanometer-scale switch, NanoBridge, is proposed, and its basic operations are demonstrated. The switch, composed of solid electrolyte copper sulfide, has a <30-nm contact diameter and <100-Ohm on-resistance. Because of its small size, it can be used to create extremely dense field-programmable logic arrays. A 4 x 4 crossbar switch and a 2-input look-up-table circuit are fabricated with 0.18-mum CMOS technology, and operational tests with them have confirmed the switch's potential for use in programmable logic arrays. A 1-kb nonvolatile memory is also presented, and its potential for use as a low-voltage memory device is demonstrated.
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