SAN FRANCISCO, Nov 2 (Reuters) - A wider bipartisan group of U.S. lawmakers is asking the Biden administration about its plans to respond to China's rising use of RISC-V chip design technology after Reuters last month reported on growing concerns about it in both houses of Congress.

RISC-V, pronounced "risk five," is a free open-source technology that competes with costly proprietary technology from British semiconductor and software design company Arm Holdings (O9Ty.F), and Intel Corp (INTC.O). It can be used as a key part of anything from a smartphone chip to advanced processors for artificial intelligence.