2024-03-25 22:21:00
SMIC and Huawei have filed patents for a chip manufacturing method called custom quadruple patterning (SAQP) to produce in 5nm technology
China will ban the use of Intel and AMD processors in computers intended for government use. This is evident from new published guidelines. In addition, the guidelines also include requirements for preferring local operating systems and database software over the Microsoft Windows system and foreign software. Government ministries above the level of the local council were required to include “safe and reliable” information processing criteria in tenders.
China’s Ministry of Industry issued a notice in late December with three separate lists of processors, operating systems and central databases deemed “safe and reliable” for three years after the publication date, all from Chinese companies. Intel and AMD did not respond to Reuters’ request for comment. The announcement is actually a counter-reaction to the goal of the American Chips Act of 2022, enacted by the Biden administration, – to strengthen semiconductor production in the US and reduce dependence on China and Taiwan, including economic assistance for domestic production with subsidies for the production of advanced chips.
At the same time China plans to develop its domestic chip industry to 5 nanometer production technology. Huawei and China Integrated Circuit Manufacturing Company (SMIC) have filed patents for a chip manufacturing method called custom quadruple patterning (SAQP). The ultimate goal is to make chips using 5nm manufacturing process technology, according to a Bloomberg report. The same method was a major reason for the failure of Intel’s first-generation 10nm process technology, but Huawei and SMIC have no choice but to use quadruple patterns because they cannot access For the most advanced tools for production due to US export laws.
The use of SAQP may allow SMIC to build chips in technologies below 10nm (most likely 5nm) despite US attempts to limit China’s capabilities in the field of advanced chip manufacturing. In Intel’s case, the SAQP technology is designed to remove dependence on advanced lithography , especially ASML’s extreme ultraviolet (EUV) lithography machines. In the case of Huawei and SMIC, the pattern quartet is the only technique that increases transistor density
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