MoSys, a privately held memory-chip supplier, came into prominence last year, punching out pin-compatible 1T versions of high-speed SRAMs from other vendors. In March 1999, the company began licensing the technology to foundries and other chip makers, and now boasts a customer list that reads like a who's who of the electronics industry, including Analog Devices, NEC Electronics, Nintendo, and Taiwan Semiconductor Manufacturing Co. Ltd.