Yes, a 3nm chip can be manufactured in China, as evidenced by several recent developments in the semiconductor industry.

Xiaomi, a prominent Beijing-based smartphone manufacturer, has reportedly taped out its first 3nm system-on-chip (SoC) processor. This marks a significant milestone for China's technology sector, showcasing the country's progress in advanced semiconductor manufacturing. Details can be found in the article from Asia Times, which discusses Xiaomi's achievement in designing this chip, as well as the implications for the Chinese tech landscape. For further reading, you can visit the article here.

Additionally, a statement from ASML’s CEO indicated that China might be capable of producing chips at both 5nm and 3nm nodes, albeit with limited capacity and by utilizing older deep ultraviolet (DUV) lithography technology. This suggests that while China is edging closer to producing such advanced chips, they face certain technological constraints. More on this can be found in the TrendForce news report which you can read here.

Xiaomi’s recent unveiling of their 3nm chip, done without the latest extreme ultraviolet (EUV) technology, represents a groundbreaking achievement for China's semiconductor industry, indicating a potential pathway for domestic chip production capabilities. Coverage on this topic can be accessed here.

Overall, the emergence of Chinese companies like Xiaomi in the 3nm chip space underscores the country’s growing capabilities in advanced semiconductor technology, despite the challenges posed by international restrictions.

Sources

Xiaomi is said to have designed its own 3nm chip - Asia Times[News] ASML CEO: China Might be Able to Produce 5nm and 3nm ...Xiaomi Unveils 3nm Chip Without EUV Technology - TDS NEWSAfter U.S. Ban... China JUST Launched World's First 3NM ... - YouTubeXiaomi Successfully Tapped Out China's First 3nm SoC - RedditXiaomi Breaks New Ground: First Chinese 3nm Chip - MediumChinese Media Cut Reports on '3nm Chip Designed by Xiaomi'

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