China’s Aerospace Technicians Achieve 5nm Precision Milling by Hand: A Game Changer in Semiconductor Industry

Author: Compiled by Lin Yirong

Photo: taken from CCTV footage

Is the 5nm “ultra-precision milling” all milled by a pair of skilled hands? China’s state media CCTV said that China’s Aerospace Science and Technology technicians have been able to achieve a grinding accuracy level of 5 nanometers with their own hands As soon as the news came out, many Chinese netizens said sarcastically, “So we’re not far off from handmade chips?”

China has been actively trying to develop the semiconductor industry in recent years, but due to export controls imposed by the United States, Japan, the Netherlands and other countries, it has been difficult to obtain chip technology and equipment.

However, CCTV recently reported that Ye Hui, an aerospace science and engineering technician, can already use his hands to perform “hand precision grinding” He can grind materials to a 5-nanometer level and is so small which only certain instruments can find. The report also stated that, in pursuit of extreme accuracy, he wanted to grind the material down to the nanometer level, and deliberately clean his fingerprints so that the fingerprints would not affect the roughness of the surface.

Ye Hui also shared his experience, saying that practice makes perfect. When grinding high precision parts, you have to rely on skill. ” CCTV also confirmed that Ye Hui broke through the bottlenecks of ultra-precision grinding technology for this kind of ultra-thin materials, and the precision was even far higher than the highest standards abroad.

As soon as the report came out, it attracted a lot of attention Maybe one could be milled by hand With 1 nanometer chips, even the CEO of Tesla Musk could sink!

But to clarify the false and exaggerated reports, CCTV specifically explained that the 5nm here does not refer to a nanometer of the wafer that is touched by hand wafer It refers to the actual width of an integrated circuit scratch line the wafer.

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