Intel Corp. is opening a new $3 billion factory in Arizona, widening its lead over rival Advanced Micro Devices Inc. in the industry's switch to a new chip-making technique. The new facility in Chandler, Arizona, will be Intel's first plant dedicated to churning out 45nm microprocessors. Intel's new plant will cover 1-million-square-foot area, and shelter more than 1,000 workers. Intel and AMD currently make their most advanced chips on 65-nanometer technology, and both companies are spending heavily to outfit their factories with the cutting-edge equipment and technologies needed to make 45-nanometer chips.