While China has made immense investments in science and technology, and while these are producing results, it is still dependent on Western technology. This is particularly true for semiconductors. China’s dependence on foreign semiconductors has worried Beijing for decades. China suspects that Western semiconductors contain “backdoors,” intentional vulnerabilities that can be exploited for intelligence and military purposes. In 2016, President Xi Jinping said, “the fact that core technology is controlled by others is our greatest hidden danger.” Vice Premier Ma Kai said at the 2018 National People’s Congress, “We cannot be reliant on foreign chips.”1 China intends to end this dependence, but despite 40 years of investment and espionage, it is unable to make advanced semiconductors. Along the way, there have been embarrassing frauds and expensive failures.