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Qualcomm Licenses Huawei's LogicFolding Chip Patents in Cross-Licensing Deal

The agreement, subject to approval, marks a reversal of two decades of Huawei paying Qualcomm and validates Huawei's chipmaking advances.

By LineZotpaper
Published
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Qualcomm has reached a multiyear cross-license deal with Huawei covering 5G, AI, and networking patents, including those behind the LogicFolding chip architecture used in the Kirin 9050 Pro processor, according to reports. The agreement represents a historic reversal in the companies' patent relationship, with Qualcomm reportedly paying Huawei for the first time.

The deal, reported by Bloomberg and confirmed by a Huawei spokesperson, has a broad scope covering 5G devices, AI services, near- and co-packaged optics, and networks. Qualcomm also intends to purchase specific Huawei US patents in compute, AI, networking, and other technologies, according to a release. Neither company's announcement named any patents, LogicFolding, or any specific chip.

LogicFolding is a chip-stacking method unveiled on May 25 by He Tingbo, president of Huawei's semiconductor business, at IEEE ISCAS 2026 in Shanghai. The technology splits nearly every circuit block across two bonded dies, with the lower die holding mostly cache and I/O. It targets faster data transmission as a workaround for China's lack of access to EUV lithography machines. The Kirin 9050 Pro, which uses LogicFolding, is used in the Huawei Mate XT 2 tri-fold smartphone launched Sept. 7.

Teardowns by Chinese tech review channel Geekerwan and semiconductor researcher Kurnal show the two dies bonded face to face, with execution units on the top die and PLLs on the lower die. Huawei's internal papers describe the chip using a 1.5-micrometer hybrid-bonding pitch with about 50 million interconnects, of which 10–15% carry signals. Core routing is 20% shorter, with critical paths up to 70% shorter. Power is reduced by as much as 66% for NPU, 58% for GPU, and 41% for a CPU performance core.

The deal remains subject to approval. Analysts see it as a validation of Huawei's chipmaking capabilities, given the company's workaround to sanctions.

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Analysis

Why This Matters

  • The deal reshapes the US-China semiconductor patent landscape, with Qualcomm, a US giant, paying a Chinese firm for chip technology.
  • It validates Huawei's LogicFolding architecture as a viable workaround for EUV restrictions, potentially influencing global chip design strategies.
  • The approval process will test US regulatory attitudes toward technology transfer with Huawei, which remains under sanctions.

Background

Huawei has been under US export controls since 2019, restricting its access to advanced chip manufacturing equipment. The company developed LogicFolding as a 3D chip-stacking method to achieve higher transistor density without EUV lithography, using hybrid bonding to stack two active dies. The architecture was announced in May 2026 under Huawei's "Tau Scaling Law," which uses signal delay rather than transistor size as a measure. Peking University has developed a "true 3D" design tool for the architecture, reporting a 30% wire-length reduction.

Key Perspectives

Qualcomm: Gains access to Huawei's patented logic-folding technology for its own chip designs, potentially improving performance and power efficiency in 5G and AI products. Huawei: The licensing revenue and validation of its chip technology mark a significant achievement, demonstrating its ability to innovate despite sanctions. Critics/Skeptics: The deal may face scrutiny from US regulators concerned about technology transfer to Huawei. Some analysts question whether the performance claims can be replicated at scale outside Huawei's own chips.

What to Watch

  • Regulatory approval: US government response could set a precedent for future deals involving sanctioned Chinese entities.
  • Adoption by Qualcomm: Whether Qualcomm integrates LogicFolding into future chips will signal the technology's commercial viability.
  • Competitor response: Other chipmakers, particularly in China, may seek licensing or develop similar stacking approaches.

Sources

Zotpaper

Written by software from the reporting listed above, scored by an automated standards desk, and published without a person reading it first. If something here is wrong, tell the editor and it will be put right.

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