Huawei Unveils Tao (τ) Law, a New Semiconductor Paradigm

SHANGHAI — Huawei has officially announced a groundbreaking new semiconductor principle — the “Tao (τ) Law” — at the 2026 IEEE International Symposium on Circuits and Systems (ISCAS) in Shanghai, marking the first time China has proposed a guiding principle for the global semiconductor industry. The announcement signals a potential paradigm shift in how chip performance is advanced, moving beyond the traditional focus on transistor miniaturization.

He Tingbo, Huawei board member, President of the Semiconductor Business Unit, and Director of the Huawei Scientists Committee, delivered a keynote titled “Exploration and Practice of New Semiconductor Pathways” at the conference on May 25, according to People’s Daily. In his address, He unveiled the Tao Law, a framework that proposes “time miniaturization” (τ) as a replacement for traditional “geometric miniaturization” — the shrinking of transistor sizes that has driven the industry for over half a century.

A New Path Beyond Moore’s Law

For decades, Moore’s Law — the observation that the number of transistors on a chip doubles approximately every two years — has served as the semiconductor industry’s guiding principle. But as transistors approach atomic-scale physical limits, geometric scaling has slowed dramatically, and the cost of advancing to smaller nodes has become prohibitive.

As Guancha (Observer) reported, the Tao Law addresses this challenge by focusing on reducing the time constant (τ — tau) — the time it takes for signals to propagate through a chip — rather than simply making transistors smaller. The core breakthrough technology enabling this approach is called “Logic Folding,” which breaks through the physical boundaries of traditional planar layouts by shortening critical path routing lengths and reducing resistance and capacitive loads.

Proven Track Record: 381 Chips in Six Years

Crucially, the Tao Law is not merely a theoretical proposal. He Tingbo revealed that Huawei has already designed and mass-produced 381 chips based on the Tao Law’s technical approach over the past six years, covering mobile phones, servers, communications, and other fields, as reported by MyDrivers.

This extensive track record provides real-world validation that the approach works at scale — a critical differentiator from purely academic proposals for post-Moore’s Law computing.

Kirin 2026: The First Logic Folding Chip

Huawei also used the occasion to officially announce the “Kirin 2026” mobile phone chip, set for release in autumn 2026. According to He Tingbo, this will be the first chip to fully implement Logic Folding technology, promising significantly improved performance.

“The ‘Kirin 2026’ mobile phone chip is the first successful implementation of Logic Folding technology,” He said, as quoted by MyDrivers. “In the next decade, we will continue to move toward full folding, even toward multi-layer folding, continuously optimizing performance from devices, circuits, to chips and systems.”

Multi-Layer Optimization Architecture

The Tao Law establishes a comprehensive multi-level collaborative optimization system spanning four layers, as detailed by Sina Finance:

• Device Level: Optimizing transistor and interconnect resistance and parasitic capacitance to minimize the device-level time constant from the physical foundation.
• Circuit Level: Using Logic Folding to break through traditional planar layout boundaries, dramatically improving transistor density and circuit performance.
• Chip Level: Through full-stack “software, architecture, chip” co-design, achieving fine-grained control of instruction and data flows based on actual workloads.
• System Level: Defining the Lingqu Bus (灵衢总线), restructuring computing system interconnect protocols to significantly reduce system communication latency.

Ambitious Roadmap to 2031

Huawei projects that by 2031, high-end chips based on the Tao Law will reach transistor density equivalent to the 1.4nm process level — a remarkable target that would put Huawei’s architectural innovations on par with the most advanced process nodes from industry leaders TSMC and Samsung, achieved through design innovation rather than pure fabrication scaling.

A Call for Global Cooperation

Despite the geopolitical tensions that have restricted Huawei’s access to advanced semiconductor manufacturing since 2019, He Tingbo struck a conciliatory and collaborative tone in his keynote.

“The future definitely belongs to open cooperation,” He said, as reported by People’s Daily. “Under the path of the ‘Tao Law,’ we look forward to working closely with global scientists, engineers, and industry partners to jointly promote the continued development of the semiconductor and electronics industry.”

Implications for the Global Semiconductor Industry

The Tao Law represents more than just a technical achievement — it positions Huawei and China as theoretical innovators in the semiconductor domain, not merely followers or manufacturers. By focusing on architectural and system-level innovations rather than pure process geometry, Huawei has charted a path that reduces dependence on advanced fabrication nodes restricted by US export controls.

As IT Home noted, the ISCAS 2024 conference — which returned to the Asia-Pacific region after being held in Singapore — featured a theme of “Circuits and Systems for Intelligent Society,” underscoring the growing importance of alternative semiconductor pathways to meet the exponentially growing computing demands of the AI era.

If the Tao Law delivers on its promises, it could fundamentally reshape the competitive dynamics between Chinese and Western semiconductor companies, offering a potential “China solution” to the global challenge of post-Moore’s Law evolution. The autumn release of the Kirin 2026 chip will be the first major test of whether this ambitious vision can translate into commercially competitive products.