146. Semiconductors and US export bans – from Huawei to SMIC

Episode Summary

Executive Summary: The episode explains why semiconductors are central to modern trade, innovation, and national security, then focuses on U.S. export controls aimed at Huawei and SMIC. It traces how highly globalized chip supply chains let Washington leverage U.S. tools and software to restrict Chinese firms, while also highlighting the costs, loopholes, and uncertainty around whether these measures will achieve their security goals.

Main Topics: Why semiconductors matter (Priority: 5/5): Chips power phones, computers, cars, and telecom networks, making them foundational to the digital economy and a major geopolitical asset. The structure of the global chip industry (Priority: 5/5): Semiconductor production is split across design, fabrication, and equipment/software suppliers, with heavy dependence on a few firms and countries. U.S. export controls on Huawei (Priority: 5/5): The U.S. moved from placing Huawei on the entity list to widening restrictions to cover foreign-made chips made with U.S. tools or software. National security versus commercial costs (Priority: 4/5): The hosts and Kevin Wolfe debate whether export controls meaningfully reduce espionage risk, while noting they can also hurt U.S. firms and market share. Huawei’s adaptation and uncertainty of impact (Priority: 4/5): Huawei has reportedly stockpiled chips, faced shortages, and tried restructuring, but its long-term ability to substitute away from U.S. technology is unclear. SMIC and the next phase of controls (Priority: 4/5): SMIC’s addition to the entity list is presented as a more traditional military-linked export control case, though it raises concerns about global shortages of lower-end chips. Alternatives to direct restrictions (Priority: 3/5): Possible alternatives discussed include narrower controls, subsidies for competitors, demand-side pressure, and Open RAN as a way to reduce dependence on Huawei.

Key Arguments: Semiconductors are strategically important because they sit at the center of consumer electronics, telecom networks, and military-adjacent technologies. The semiconductor industry has exceptionally high barriers to entry because it requires massive R&D spending plus very expensive fabrication equipment and clean-room facilities. Global chip supply chains are deeply fragmented: American firms often design chips, while fabrication frequently occurs in Taiwan, South Korea, and elsewhere in Asia. U.S. export controls became powerful because they targeted not only U.S.-made goods but also foreign-made chips produced with American tools or software. The Huawei restrictions appear aimed less at a clean legal violation and more at imposing broad economic harm to weaken Huawei’s 5G ambitions. There are tradeoffs: stronger controls may constrain Huawei, but they also risk undermining U.S. chip sales, signaling unreliability to foreign customers, and reducing American market share. The effectiveness of the Huawei measures is still uncertain; evidence suggests disruption, but it is unclear whether the policy achieves the intended security objective. SMIC represents a more classic export-control rationale because U.S. officials tied it to military uses and targeted the most advanced sub-10nm technologies more directly. If licenses are denied too broadly for SMIC, the world could face shortages of basic, high-volume chips used in cars, TVs, and radios. Open RAN and support for competitors are presented as potential non-sanctions tools to reduce reliance on Huawei, though these alternatives have their own limitations.

Data Points: R&D spending as share of annual semiconductor sales: 15% to 20% - Used to show how capital-intensive and innovation-heavy the industry is. Fab equipment costs as share of annual revenue: 10% to 15% - Additional fixed cost burden for building semiconductor fabrication capacity. Cost of a new fab: More than $10 billion - Illustrates the scale of investment required to enter chip manufacturing. Globally installed manufacturing capacity in the U.S.: Around one-eighth - Shows the limited domestic U.S. share of global chip manufacturing. Globally installed manufacturing capacity in Asia: More than 80% - Highlights concentration in Taiwan, South Korea, and China. Semiconductors used in smartphones and tablets: About one-third - From the Semiconductor Industry Association’s breakdown of end uses. Semiconductors used in computers: Almost another third - Shows large demand from computing devices. China’s share of world semiconductor consumption: Over half - Demonstrates China’s central role as a buyer, not a self-sufficient producer. Companies making 5G equipment/chips mentioned as major players: 3 main companies: Ericsson, Nokia, Huawei - Illustrates the narrow supplier base for advanced telecom equipment. Huawei handset rank in Q2 2020: Biggest supplier of handsets in the world - Shows Huawei’s scale beyond 5G infrastructure. U.S. semiconductor sales to China: More than one-third - Indicates the commercial exposure of U.S. chipmakers to Chinese buyers. U.S. semiconductor sales to Chinese device companies: More than one in five - Shows dependence on Chinese electronics firms as customers. Advanced chip threshold in SMIC restrictions: Smaller than 10 nanometers - Advanced technologies facing near-total denial of licenses. Share of world chip-design software supplied by three U.S. firms: 85% - Cadence, Synopsys, and Mentor Graphics dominate EDA software.

Pivotal Quotes: "If data are the new oil, chips are the internal combustion engines that turn them into something useful." — The Economist colleague cited by Samaya Keynes: Used to explain the economic centrality of semiconductors. "The anti-list means that any export from the United States... cannot go to an entity on the list without a license." — Kevin Wolfe: Defines the legal mechanism of the entity list and export licensing. "We simply no longer could stand by and watch our adversary using our technology to support its military capabilities." — Commerce Department official quoted in the episode: Explains the rationale for adding SMIC to the entity list.

Implications: Export controls can reshape tech supply chains and pressure targeted firms, but they also expose U.S. firms to lost sales and may push China toward self-reliance. The long-term winners and losers are still uncertain.