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June 30, 2026

SMIC N+3 Breakthrough: Chinese Chips Achieve Parity with TSMC N6

SMIC N+3 Breakthrough: Chinese Chips Achieve Parity with TSMC N6

A 2026 SemiAnalysis study marked a paradigm shift in the semiconductor industry. Reverse-engineering of the HiSilicon Kirin 9030 processor used in Huawei's Mate 80 smartphones revealed that China's SMIC N+3 process node achieved transistor density comparable to TSMC's N6 technology node. This achievement represents the third generation of SMIC's 7-nanometer technology and demonstrates highly efficient production chain optimization under stringent export restrictions.

The key finding confirms that China can compensate for lack of EUV equipment access through multiple patterning on DUV machines and improved transistor architecture. Element packing density—a critical parameter affecting power consumption and heat dissipation—reached levels enabling competition with leading global players in the mobile segment. This shifts the economic landscape by reducing Chinese manufacturers' dependency on imported components and increasing their margins.

However, experts note that achieving N6 parity does not mean complete technological superiority. TSMC maintains leadership in more advanced nodes where switching speed matters alongside density. Yet for mass-market smartphones and IoT devices, SMIC N+3 results suffice to ensure Huawei's product competitiveness. This case demonstrates that sanctions pressure accelerates domestic R&D development, potentially leading to an alternative global semiconductor ecosystem in the long term.