Foundry Selection Under Trade Tensions: A Practical Framework for ASIC Supply Chain Resilience
The semiconductor industry in 2020 operates under a trade environment that would have been difficult to imagine five years earlier.
Export controls, entity list restrictions and regional policy shifts have transformed foundry selection from a purely technical and economic decision into one that must also account for regulatory compliance, supply continuity and geopolitical risk.
For ASIC teams — particularly those whose end products serve global markets — building resilience into the foundry strategy has become as important as optimizing PPA.
The New Variables in Foundry Selection
Traditional foundry evaluation focused on process capability, unit cost, capacity availability and IP ecosystem depth. These factors remain essential but are no longer sufficient.
Teams must now also assess: export control jurisdiction for the target node, entity list status of potential foundries, secondary source options if a primary foundry becomes inaccessible, and the regulatory landscape in both the country of design and the countries where the end product will be sold.
- Export control classification varies by node — advanced nodes face stricter review thresholds
- Entity list status can change with limited notice — monitor policy developments actively
- Dual-source strategies require design investment in portability (multiple PDKs, compatible IP)
- Regional content requirements in some markets affect where value-add can occur
Comparing Major Foundry Options in 2020
As of 2020, the four primary foundry options for most ASIC programs each carry distinct profiles under the current trade environment.
- TSMC (Taiwan): Broadest advanced-node portfolio, strongest IP ecosystem; subject to Taiwan Strait geopolitical considerations
- Samsung (South Korea): Strong 7nm/5nm/EUV capability; alternative to TSMC for leading-edge designs; Korea-US alliance provides certain compliance advantages
- GlobalFoundries (US/Singapore/Germany): No internal roadmap below 14nm/12nm LP; strong position for mature-node and specialty processes; US-headquartered simplifies certain export classifications
- SMIC (China): 14nm and emerging N+1/N+2 capabilities; entity list exposure requires compliance review for certain markets; strong position for China-domestic programs
Building Resilience Into the Foundry Strategy
Resilience does not mean avoiding all risk — it means understanding the risks explicitly and having documented contingency plans.
Practical approaches include maintaining design portability across at least two foundry PDKs, selecting IP with multi-foundry licensing where possible, and structuring contracts with clear provisions for transfer of mask data and test programs if a foundry relationship must change.
- Design with portability in mind from architecture stage — not as an afterthought
- Select IP vendors who support multiple foundries rather than single-source IP
- Maintain updated mask data (GDS/OASIS) in escrow or accessible archive
- Document test program and characterization data so a second source can pick up smoothly
- Review foundry strategy quarterly as part of program risk assessment
How TOMPW Supports Cross-Foundry Coordination
For teams navigating foundry selection under trade uncertainty, TOMPW Service provides grounded assessments based on ongoing relationships with multiple foundries and real-time visibility into shuttle calendars, capacity allocation and policy changes.
The goal is not to predict geopolitics but to ensure that technical and logistical execution remains robust regardless of which foundry path a program ultimately takes.
