Samsung to Invest ¥40 Billion in Yokohama AI Chip Advanced Packaging R&D Center
nashnova research
Samsung Electronics opened a ¥40 billion advanced-packaging lab in Yokohama, with over half the funding from the Japanese government. This means → the AI chip race has shifted from shrinking circuits to assembling them, and Samsung is betting on Japan's materials supply chain to close the gap.
What does this lab actually do?
The Samsung Advanced Package Lab sits in Yokohama's Minato Mirai district, covering roughly 6,600 square meters with a cleanroom that simulates mass-production conditions.
95 researchers from Korea and Japan will work on advanced back-end packaging materials and production techniques. Of the ¥40 billion total, ¥22.5 billion comes from Japan's government.
In plain terms = this is not a production line — it is a "materials proving ground." New materials from Japanese suppliers get tested locally; only the most promising ones move to Samsung's Korean fabs.
Why has packaging suddenly become so critical?
Chipmaking has two stages: front-end (etching circuits onto wafers) and back-end (packaging and assembly). Shrinking circuit widths — the old performance driver — is hitting physical limits.
This means → the performance race is shifting to back-end packaging. AI data centers need high-bandwidth memory — HBM, a type of ultra-fast stacked memory built for AI chips — and connecting HBM to GPUs inside a single package is the new bottleneck.
This reflects a track change across the industry: whoever *assembles* chips better gains the lead in AI compute.
Why does it have to be in Japan?
Samsung executives acknowledged that the key materials for HBM packaging "rely almost entirely on Japanese companies."
Sumitomo Bakelite holds roughly 40% of the global packaging-materials market. Resonac Holdings and Mitsubishi Gas Chemical lead in substrate materials. Samsung currently works with more than 50 Japanese firms on AI chip back-end processes.
In plain terms = the suppliers are clustered in Japan, so Samsung built the lab on their doorstep — no more shipping samples across borders for testing.
What practical problem does this lab solve?
Previously, new materials developed by Japanese suppliers had to be shipped to Korea for testing. Regulatory approvals and customs added delays of up to two months.
With the Yokohama lab, Samsung can evaluate and prototype locally, sending only the strongest candidates to Korean production lines.
This means → the R&D cycle shrinks significantly. Smaller Japanese suppliers that cannot afford their own facilities in Korea now have a nearby channel to collaborate and prototype.
Can this move help Samsung catch SK Hynix?
Samsung has fallen behind fellow Korean company SK Hynix in HBM. SK Hynix is currently Nvidia's primary HBM supplier.
Jeon Young-hyun, head of Samsung's Device Solutions division, said the lab will "accelerate technology exchange between Korea and Japan and drive next-generation packaging industry growth." 15 major Japanese suppliers — including Tokyo Electron and Ibiden — attended the opening.
This reflects Samsung's strategy: trade *proximity to suppliers* for *faster materials iteration*. Whether that truly narrows the gap with SK Hynix is the core test for this ¥40 billion investment.
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