<p>➀ At 60, Yin Zhizao, the 'Father of China's Chip Etching Machine', returned to China from Silicon Valley, restarting his career with Chinese chip development.</p><p>➁ After years of effort, Yin and his team developed China's first domestically produced etching machine, breaking the foreign monopoly.</p><p>➂ Despite facing lawsuits and challenges from former employers, Yin's company, Microelectronics, achieved significant breakthroughs in chip etching technology, propelling China from a follower to a leader in the industry.</p>