ASE Technology vs SFA Semicon

Both are primarily Outsourced Assembly & Test companies. SFA Semicon has a tracked market cap of $1.4B; ASE Technology is currently unpriced in the dataset. ASE Technology reports higher tracked revenue ($20.6B vs $274M).

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Side-by-side

ASE TechnologySFA Semicon
Market capUnpriced$1.4B
Revenue$20.6B (FY2025)$274M (FY2025)
Primary segmentOutsourced Assembly & TestOutsourced Assembly & Test
Market positionleaderniche
CountryTaiwanSouth Korea
Tracked suppliers200
Tracked customers726
Chokepoint / criticality81/10050/100

Market caps/revenue from the wafergraph dataset · data as of 2026-10-09. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.

How ASE Technology and SFA Semicon compare

  • Revenue: ASE Technology reports higher tracked revenue.
  • Supply-chain criticality: ASE Technology has the higher chokepoint score (81/100 vs 50/100).
  • Footprint: ASE Technology (Taiwan) vs SFA Semicon (South Korea).

Company hubs

ASE Technology · SFA Semicon · OSAT segment

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Cite as: wafergraph, “ASE Technology vs SFA Semicon”, https://wafergraph.com/compare/ase-vs-sfa_semicon (data as of 2026-10-09).

Frequently asked questions3
Is ASE Technology bigger than SFA Semicon?
By tracked revenue, ASE Technology is larger ($20.6B vs $274M).
What's the difference between ASE Technology and SFA Semicon?
ASE Technology is a leader in Outsourced Assembly & Test based in Taiwan; SFA Semicon is a niche in Outsourced Assembly & Test based in South Korea. Both operate in the OSAT segment.
Who are ASE Technology's and SFA Semicon's suppliers?
wafergraph tracks 20 suppliers for ASE Technology and 0 for SFA Semicon — ASE Technology's include Tokyo Electron, Advantest, Teradyne.