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China’s new chip stores data with a single electron, breaking AI memory bottleneck

China’s new chip stores data with a single electron, breaking AI memory bottleneck
South China Morning Post Thursday 23 July 2026, 09:00 UTC By Shi Huang 1 min read
Key Points

How many electrons does it take to store a single bit of information? For today’s most advanced dynamic random access memory (DRAM) chips from Samsung and SK Hynix, the answer is roughly 200,000. That is the price of reliability – a vast reservoir of charge needed to ensure a “1” or “0” does not fade into noise.

How many electrons does it take to store a single bit of information? For today’s most advanced dynamic random access memory (DRAM) chips from Samsung and SK Hynix, the answer is roughly 200,000. That is the price of reliability – a vast reservoir of charge needed to ensure a “1” or “0” does not fade into noise. But a team at Fudan University in Shanghai has just collapsed that number to its theoretical floor: one. In a paper published on July 16 in Science, microelectronics professor Zhou Peng...
China (LOCATION) AI (ORG) Samsung (ORG) SK Hynix (ORG) Fudan University (ORG) Shanghai (LOCATION) Science (ORG) Zhou Peng (PERSON)
Originally published by South China Morning Post Read original →

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