Japan's 90% Monopoly | Why Korea Can't Make AI Chips Without It

Описание: South Korea controls 62% of the world's HBM memory market. Japan controls the machines that make it possible. This is the most important dependency in the global semiconductor supply chain — and almost nobody talks about it.

Japan and South Korea are not semiconductor rivals. They are locked in a structural interdependence that runs from silicon wafers to test equipment to photoresist chemicals — one that Japan has quietly weaponized before, and could again. This video breaks down exactly how the semiconductor value chain is divided between these two countries, why Japan's upstream position is more durable than it looks, and what the AI era is revealing about who actually holds the leverage.

You'll understand why Tokyo Electron holds a 90% market share in coater-developer systems, how Japan's 2019 export controls nearly paralyzed Samsung and SK Hynix, why Japanese equipment companies earn stable 25-30% operating margins while Korean chipmakers ride a boom-bust cycle, and what Japan's multi-trillion yen bet on Rapidus and TSMC's Kumamoto says about its ambitions to reclaim a place in fabrication.

The story of Japan's semiconductor strategy is really a story about what you do after you lose. And in that story, losing the chip fabrication business in the 1990s may have been the best thing that ever happened to Japan's semiconductor industry.

Chapters
Cold Open
Korea's Memory Dominance
Japan's Upstream Stranglehold
The 2019 Warning Shot
Margins and Stability
Japan's Strategic Retreat — and Return
The Japan Factor
Closing Thoughts

Sources & Further Reading
CNBC: SK Hynix beats Samsung in annual profit for the first time (January 2026)
Tokyo Electron: FY2026 Full-Year Financial Results
TrendForce / Astute Group: HBM market share data (Q2 2026)
The Diplomat: TSMC's Kumamoto Fab Upgrade (April 2026)
CEPR / RIETI: Impact of Japan–Korea export controls on semiconductor trade
METI: Semiconductor Revitalization Strategy (July 2024)
Nikkei Asia: Japan semiconductor equipment market share expansion (2026)

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Voice: AI-generated narration
Research & Script: AI-assisted with human editorial direction
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THE JAPAN FACTOR
Deep analysis of Japanese business, economy, and corporate strategy.
We go beyond the headlines to reveal how Japan's companies and
economy really work -- and what the world can learn from them.

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