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Japanese analysts scanned the chip process of domestic 5G mobile phones and came to the conclusion of 14 nanometers. However, this assessment has caused confusion about the naming convention of chip processes. In the past, chip manufacturers often defined chip processes in terms of gate spacing. However, as the gate spacing gradually approached the limit, FinFET technology was introduced, a revolutionary technology that improved chip performance by creating tall, thin fins on an insulating substrate that allowed for better current control and reduced leakage.
High-performance chips, such as mobile phone processors and PC processors, can be FinFET technology to further reduce gate spacing, improve performance, and reduce power consumption. But for chips that require higher durability and reliability, such as memory chips, gate spacing can no longer be reduced. This requires other approaches, such as increasing the number of layers of the chip to increase capacity. Therefore, chip process naming conventions need to be named according to the upgrade of parameters such as performance improvement, power consumption reduction, and transistor density.
The world's three leading chip manufacturers, including Intel, TSMC and Samsung, have all been confused over the naming of chip processes. This has also led to some problems, such as Intel's delay in mass production of 10nm and 7nm processes after the 14nm process. In contrast, TSMC and Samsung have adopted a more aggressive naming strategy, but this has also raised questions because their craftsmanship has not lived up to expectations. The process of the domestic Kir000S chip is considered to be 14 nm or 7 nm, and this confusion is because different companies use different naming conventions.
This situation has led to the enlightenment of China's chip manufacturing process, that after 14nm, improving performance does not necessarily require the use of more advanced EUV lithography machines to reduce gate spacing. Instead, new ways to improve performance can be found, which would be a viable path for China's chip manufacturing industry. This case provides inspiration for China's chip industry, breaking through the traditional chip process naming rules and exploring more technical paths, which will help improve the competitiveness of Chinese chips in the international market. This is also an important step for the sustainable development of China's chip manufacturing industry.