The American semiconductor giant, Micron Technology, is actively encouraging the U.S. Congress to implement stringent export restrictions on equipment used by Chinese rivals, insiders disclose.Legislative progress was made as a U.S. House of Representatives panel approved the proposed "MATCH Act," aimed at bolstering export controls on chip fabrication tools. Should it become law, the Act would tighten regulations on foreign companies dealing with Chinese chip manufacturers, including ChangXin Memory Technologies and Yangtze Memory Technologies.American lawmakers and Micron insist that reigning in China's growing dominance in the memory chip sector is a national security imperative, comparing it to Beijing's lead in…