ASE Technology Holding vs Ibiden: Advanced packaging compared

November 2026 edition · assessment by Frontier Tech Intelligence

Ibiden ranks 40 on the AI Infra 100 with a score of 91; ASE Technology Holding ranks 42 with 91. ASE Technology Holding is ahead on production and firepower. Ibiden is ahead on positioning and leverage. Level on deployment, commercials, progress and technology. ASE Technology Holding is based in Kaohsiung, Taiwan, Ibiden in Ogaki, Japan. ASE Technology Holding is named in 2 signals and Ibiden in 5.

ASE Technology Holding →

Kaohsiung, Kaohsiung, Taiwan · AI Core · Fabrication, memory & packaging / Advanced packaging · aseglobal.com

ASE is a major semiconductor assembly and advanced-packaging provider, with FOCoS, FOCoS-Bridge, CoWoS, system-in-package and FC-BGA capabilities for AI and HPC applications.

AI Infra 100 · rank 42 · score 91

Scores, AI Core (of 10)

Deployment10
Production10
Commercials10
Progress10
Technology8
Positioning8
Firepower10
Leverage8

Darker bar: ahead of the other company on that measure.

Positioning

ASE Technology Holding is a Taiwan-based public OSAT and advanced-packaging provider, positioned among the largest global independent assembly-and-test suppliers and a major alternative to in-house foundry packaging. Its domain activity accelerated through a February-2025 Penang plant launch, May-2025 FOCoS-Bridge-with-TSV technology announcement, October-2025 NT$17.6 billion K18B advanced-packaging factory groundbreaking, May-2026 310mm panel-level packaging line announcement, and May-2026 Analog Devices facility acquisition. ASE supplies or works with named ecosystem participants including NVIDIA through subsidiary SPIL, AMD, Analog Devices and WUS; the open question is how much of its broad packaging revenue is directly attributable to AI accelerators rather than general semiconductor demand.

Latest signals

  • ASE is expanding into post-package testing and full-process packaging for AI chips.Electronics Weekly
  • ASE is ramping on-substrate packaging and chip-probe volumes amid TSMC’s CoWoS shortfall.Electronics Weekly

2 signals name ASE Technology Holding.

Facts, with sources

  • EMS revenue declined 5.2% year over year to NT$257.2 billion, primarily because of slow recovery in general communications and automotive products.sec.gov
  • EMS revenue declined 5.2% year over year.sec.gov
  • ASE and WUS announced a strategic collaboration to build an advanced AI-packaging hub in Kaohsiung focused on FOCoS and FC-BGA capacity.ase.aseglobal.com

17 facts on file.

Ibiden →

Ogaki, Gifu, Japan · AI Core · Fabrication, memory & packaging / Advanced packaging · ibiden.com

Ibiden manufactures IC package substrates, including ABF-based substrates used in advanced semiconductor packaging for high-performance processors.

AI Infra 100 · rank 40 · score 91

Scores, AI Core (of 10)

Deployment10
Production8
Commercials10
Progress10
Technology8
Positioning10
Firepower8
Leverage10

Darker bar: ahead of the other company on that measure.

Positioning

The leading maker of high-end IC package substrates under GPUs and AI CPUs; demand outpaces supply, and its own constraint is ABF film from a single supplier, which makes it the substrate bottleneck in company form.

Latest signals

  • Ibiden plans a KRW 1.28 trillion investment to expand AI-server CPU substrate capacityThe Elec
  • Nvidia is expanding AI infrastructure manufacturing capacity with six supply-chain partners.Yicai
  • ASE, PTI, Amkor, TSMC, SK hynix, Ibiden, and Unimicron are expanding advanced-packaging capacity.Electronics Weekly

5 signals name Ibiden.

Facts, with sources

  • ABF film not secured for upsideIbiden Q1 release via Envalith, I-Connect007, Nikhs
  • 26.4Ibiden Q1 release via Envalith, I-Connect007, Nikhs
  • JPY 500000000000Ibiden interim report

4 facts on file.

More comparisons

Questions this page answers

ASE Technology Holding or Ibiden: which is ahead in ai core?

Ibiden ranks 40 on the AI Infra 100 with a score of 91; ASE Technology Holding ranks 42 with 91. ASE Technology Holding is ahead on production and firepower. Ibiden is ahead on positioning and leverage. Level on deployment, commercials, progress and technology. ASE Technology Holding is based in Kaohsiung, Taiwan, Ibiden in Ogaki, Japan. ASE Technology Holding is named in 2 signals and Ibiden in 5.

How do ASE Technology Holding and Ibiden compare?

Ibiden ranks 40 on the AI Infra 100 with a score of 91; ASE Technology Holding ranks 42 with 91. ASE Technology Holding is ahead on production and firepower. Ibiden is ahead on positioning and leverage. Level on deployment, commercials, progress and technology. ASE Technology Holding is based in Kaohsiung, Taiwan, Ibiden in Ogaki, Japan. ASE Technology Holding is named in 2 signals and Ibiden in 5. Both company files carry the scores on eight measures, the facts with sources and the latest signals.

Every comparison here comes from the same files members use every day.

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