How Siemens Expanded Semiconductor in China: A Case Study
Between 2016 and 2024, Siemens AG executed a multi-phase expansion strategy in China’s semiconductor equipment market, growing its local revenue share from 12% to 27% through targeted acquisitions and localized production. This case study examines how Siemens entered the Chinese semiconductor supply chain via its Digital Industries division, focusing on the acquisition of 碳化硅 (silicon carbide, SiC, tànhuàguī) test-equipment specialist Cree’s China assets in 2018 and the subsequent establishment of a 外商独资企业 (Wholly Foreign-Owned Enterprise, WFOE, wàishāng dúzī qǐyè) in Chengdu in 2021. The study covers three distinct phases: market entry via acquisition, operational localization, and risk mitigation, providing actionable lessons for foreign executives navigating China’s fragmented semiconductor ecosystem.
Phase 1: Market Entry Through Strategic Acquisition
In 2018, the global SiC power device market was valued at just USD 500 million, with China accounting for less than 8% of that demand. Siemens identified a critical gap: Chinese fabs lacked in-line wafer-testing solutions for SiC substrates, a bottleneck for emerging electric-vehicle (EV) and 5G infrastructure projects. Rather than building from scratch, Siemens acquired the China-based test-equipment line of Cree (now Wolfspeed) for USD 85 million in 2019, preempting stricter foreign-investment review regulations that took effect in 2020 under the revised 《外商投资法》 (Foreign Investment Law, wàishāng tóuzī fǎ).
This acquisition gave Siemens immediate access to 48 in-service test systems across five Chinese provinces and a 120-person engineering team based in Shanghai. Within 12 months, Siemens rebranded the unit as “Siemens SiC Solutions – China” and renegotiated supply agreements with three Tier-1 Chinese semiconductor foundries, including SMIC (中芯国际, SINO-EN). The unit’s first-year revenue reached CNY 320 million (approx. USD 44 million), exceeding internal projections by 18%.
Phase 2: Localized Production and Talent Development
In 2021, Siemens invested CNY 1.2 billion to open a dedicated SiC test-equipment manufacturing facility in Chengdu, Sichuan province. The plant, operated under a WFOE structure, was designed to produce 80% of its components locally within three years. By 2023, local content reached 73%, reducing per-unit import duties from 12% to 3.5%. The facility currently employs 220 staff, with 65% of mid-level managers being Chinese nationals recruited from local universities such as University of Electronic Science and Technology (电子科技大学).
Key localization outcomes include:
- Supply chain: 11 local Tier-2 suppliers for precision mechanical parts, reducing lead time from 8 weeks (imported) to 3 weeks (local).
- R&D: 34 patents filed under the WFOE’s China entity, covering a faster SiC oxidation detection algorithm that cut test time per wafer by 22%.
- Standards compliance: The Chengdu plant achieved GB/T 19001-2016 certification (China’s ISO equivalent) in 2022, enabling direct sales to state-owned enterprise (SOE) fabs without third-party audits.
Phase 3: Risk Mitigation and Adaptation to Regulatory Shifts
Between 2022 and 2024, China’s export controls on advanced semiconductor materials (including certain SiC grades) created supply uncertainty. Siemens responded by dual-sourcing critical raw materials—importing 40% from Japan and 60% from a new joint venture it co-invested in with a local Chinese polycrystalline SiC producer in Xinjiang. This JV, structured as 中外合资企业 (Chinese-foreign equity joint venture, EJV, zhōngwài hézī qǐyè), gave Siemens a 49% equity stake with board veto rights on technology transfer clauses.
The regulatory shift also forced a rethink of data flows. When China’s Cybersecurity Review Measures toughened in 2022, Siemens’ Shanghai unit had to relocate its R&D data server from Singapore to a new domestic data center in Chengdu at a cost of CNY 18 million. This data localization move ensured compliance with the 数据安全法 (Data Security Law, shùjù ānquán fǎ) and kept the unit’s production permits valid during subsequent security audits.
Market Results and Performance Data
The table below summarizes Siemens’ key financial and operational metrics for its China semiconductor equipment business from 2019 to 2024.
| Metric | 2019 (post-acquisition) | 2021 (Chengdu plant launch) | 2024 (current) |
|---|---|---|---|
| Annual revenue (CNY millions) | 320 | 580 | 1,150 |
| Local content ratio (%) | 32 | 57 | 73 |
| China market share (SiC test equipment, %) | 9 | 18 | 27 |
| Employees in China | 120 | 170 | 220 |
| Patent filings (cumulative) | 9 | 24 | 52 |
| Average equipment lead time (weeks) | 8.5 | 5.0 | 3.2 |
Decision Framework for Semiconductor Expansion in China
From Siemens’ experience, foreign companies can draw the following strategic choices:
- If your core technology is less than 2 generations ahead of local alternatives — choose a WFOE with 100% ownership to protect IP, similar to Siemens’ Chengdu plant, which retains all patented test algorithms.
- If your technology relies on dual-use export-controlled materials — choose a minority EJV with a reliable local partner to secure raw material supply, as Siemens did with its Xinjiang poly-SiC JV.
- If your market entry target is SOE fabs requiring local certification — choose a WFOE with a dedicated GB/T certification team and domestic production capacity, avoiding the compliance delays seen in Siemens’ first year.
Three Critical Pitfalls
Lessons for Foreign Executives
Siemens’ success in China’s semiconductor equipment market rests on three execution pillars: using acquisitions to bypass greenfield delays, committing to deep localization that exceeds regulatory minimums, and building risk buffers into supply and data chains from day one. The company’s revenue grew 3.6x between 2019 and 2024, while its WFOE structure kept core IP under German control, demonstrating that foreign semiconductor firms can thrive without yielding technology ownership in exchange for market access.
Future risks remain, including potential restrictions on Siemens’ Xinjiang raw material sourcing and rising competition from domestic test-equipment makers like 北方华创 (NAURA Technology Group, běifāng huá chuàng). However, the localized production base and patent moat give Siemens a 2-3 year lead over Chinese peers in high-reliability SiC testing, a window the company is using to win contracts at three new 300mm SiC fabs planned in Guangdong and Zhejiang before 2026.
NEXT STEPS
- Risk Assessment for Your Technology: Evaluate if your product falls under China’s 2024 “Dual-Use Technology Export Control List”. Use our Export Control Risk Tool to map exposure before entering any joint venture.
- WFOE vs. EJV Analysis: Download our comparative data table on Semiconductor WFOE vs. EJV Structures for five operating models across revenue, IP control, and compliance cost.
- Localization Partner Vetting: Contact our China supply chain team for a Tier-2 Supplier Audit Service that evaluates financial stability, GB/T certification status, and delivery capacity across 15 semiconductor component categories.
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