Lawrence Person's BattleSwarm Blog
I’ve previously talked about China’s difficulties in catching up to the west in semiconductor manufacturing here, here, and here, among other places. To summarize: Western nations have an advanced, highly interconnected semiconductor manufacturing ecosystem that China doesn’t have the technical expertise to replicate. In particular, China has nothing like ASML’s extreme ultraviolet lithography machines (AKA a “stepper”) necessary to build the most advanced chips with the smallest feature geometries.
Here’s a piece with ASML’s CEO talking about just how far China is behind.
Though advancements that SMIC and Huawei have made in the semiconductor sector in recent years are pretty impressive, the companies are 10 to 15 years behind industry giants like Intel, TSMC, and Samsung, said Christophe Fouquet, chief executive of toolmaker ASML. It’s well known that even with the best-in-class DUV tools, Chinese fab SMIC will be unable to match TSMC’s process technologies cost-effectively. This is because Chinese companies cannot access leading-edge EUV lithography tools.
“By banning the export of EUV, China will lag 10 to 15 years behind the West,” said Christophe Fouquet in an interview with NRC (machine translated). “That really has an effect.”
ASML has never shipped its EUV tools to China due to the Wassenaar Arrangement, despite SMIC’s reported order for one EUV machine. The details remain unclear, but ASML did not deliver the machine to the Chinese foundry due to US sanctions. However, ASML kept shipping advanced DUV lithography tools, such as the Twinscan NXT:2000i, which are capable of producing chips on 5nm and 7nm-class process technologies.
As a result, SMIC has been producing chips for Huawei using its 1st-generation and 2nd-generation 7nm-class process technology for years now. This has certainly helped the Chinese high-tech giants weather U.S. government sanctions.
Having understood that EUV tools are not coming to China, Huawei and its partners have explored extreme ultraviolet lithography themselves with the aim of building their own lithography chipmaking tools and ecosystem, which will take 10 – 15 years at best. For reference, it has taken over 20 years for ASML and its partners from foundational work to complete commercial machines to build the EUV ecosystem.
China thought it had found a way out of the western ban on high end lithography machines. Turns out: Not so much.
More:
https://www.battleswarmblog.com/?p=62124
