[News] Huawei’s Mate 70 Will Reportedly Use a Kirin SoC Made with SMIC’s 7nm Node instead of 5nm

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Chinese tech giant Huawei, which plans to launch its Mate 70 Series in the fourth quarter, is reportedly to feature the latest Kirin 9100 processor in these models. Though there were rumors indicating that the chip will be manufactured with SMIC’s 5nm node, according to a report by Wccftech, the next Kirin SoC for the Mate 70 Series will still be limited to SMIC’s 7nm process.

Kirin 9100’s predecessors, the Kirin 9000S and the Kirin 9010, have been mass-produced using SMIC’s 7nm (N+2) technology, the report notes. As market speculations previously indicated that Huawei might use 5nm in its next Kirin SoC, there seems to be a twist in Huawei’s plans.

According to Wccftech, the next Kirin SoC for the Mate 70 series will likely be mass-produced using SMIC’s N+3 process, which offers higher density compared to the N+2 variant. The move means that instead of transitioning to SMIC’s 5nm, Huawei’s latest Kirin SoC may choose to stay with 7nm.

It is worth noting that even under the U.S. export control, SMIC is said to successfully produce 5nm chips using DUV lithography instead of EUV, which is typically required for 5nm production. However, as the high cost and low yield of DUV make it a challenging feat for most manufacturers, Huawei’s decision may be practical.

As previously reported by the Financial Times, industry sources have indicated that SMIC’s prices for 5nm and 7nm processes are 40% to 50% higher than TSMC’s, while the yield less than one-third of TSMC’s. Later, it was estimated that SMIC’s 5nm chip prices would be up to 50 percent more expensive than TSMC’s on the same lithography, meaning that Huawei would face a tough time selling its Mate 70 series to consumers with a decent margin if it attempts to absorb a majority of those component costs.

Therefore, Wccftech now states that the Kirin 9100 might be fabricated using the 7nm process. By employing the N+3 node, it could achieve a higher density than the Kirin 9010 and the Kirin 9000S, which are manufactured by the N+2 node. This improvement means that the Kirin 9100 will have a higher transistor count, leading to better performance per watt and improved power efficiency.

Alongside the new chipset for the Mate 70 family, Huawei is rumored to be testing the same N+3 technology for its ARM-based hardware, the report notes.

Read more

• [News] Huawei Reportedly to Launch Kirin 9100 with Superior Performance to Snapdragon 8 Gen 2
• [News] SMIC Reportedly to Manufacture 5nm Chips for Huawei Without EUV Machinery

(Photo credit: Hisilison)