🧠 Food for thought

Implications, context, and why it matters.

The brute-force strategy behind China’s chip ambitions

• China is moving into 7nm and 5nm chipmaking without access to EUV (extreme ultraviolet) lithography machines because of US-led export controls 1.
• Companies such as SMIC rely on older DUV (deep ultraviolet) lithography tools, then use complex and costly engineering workarounds to build advanced chips 2.
• SMIC’s 7nm process has reportedly raised yield rates, which makes commercial output more realistic 3.
• State backing stays heavy. Local governments supply about 66% of China’s semiconductor subsidies, which drives internal rivalry and trial runs across chipmakers 4.
• Huawei Technologies received 7.3 billion yuan, about US$1 billion, in government subsidies in 2023 5.

Advanced chips face a memory bottleneck and mature-node oversupply risk

• China’s push for advanced chips also spills into the market for less-advanced “mature node” parts.
• Chinese semiconductor fabrication plants added 500,000 wafers per month to global supply for nodes greater than 14 nanometers, which raises oversupply and price pressure for chips used in cars or consumer electronics 6.
• Even if domestic 5nm production works, building high-end AI systems still runs into a memory roadblock.
• High Bandwidth Memory (HBM), a component for AI accelerators (specialized chips used to run AI models), is led by South Korean firms and export controls can limit access 7.
• China still struggles to assemble top-tier AI hardware comparable to Nvidia’s, even if it can make core logic chips at home 7.