What is high bandwidth memory and why is the US trying to block China’s access to it? | CNN Business

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CNN  — 

The US government has imposed fresh export controls on the sale of high tech memory chips used in artificial intelligence (AI) applications to China.

The rules apply to US-made high bandwidth memory (HBM) technology as well as foreign-produced ones.

Here’s everything you need to know about these cutting-edge semiconductors, which have seen demand soar along

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