Northrop Grumman is planning on offering its new microchip, which CEO Kathy Warden described as "about the size of a grain of rice," to commercial markets as well as the Defense Department. The Fortitude microchip “uses patented technology to deliver up to three times the power and 20 times the signal quality of comparable solutions in the market today,” Warden said during the company’s third-quarter earnings call today. “It can replace dozens o…