What SUMCO makes for data centers
public · HQ Japan
SUMCO is a publicly listed company and based in Japan. It appears on 1 part of the AI data center — Silicon wafers — in the role of manufacturer. That part sits in Layer 1 — Compute silicon & packaging. Its shares trade on Tokyo Stock Exchange as 3436.T.
Listing
Tokyo Stock Exchange: 3436.T· 2348 JPY -1.16% · mkt cap 821.0B JPY
Snapshot 2026-10-25T10:41:17Z — nightly, not real-time.· Chart on TradingView ↗
Exposure
1 part across 1 layer
No disclosed data-center revenue share on file.
Parts, by layer
Layer 1 — Compute silicon & packaging
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Silicon wafers | manufacturer | disclosed | GlobalWafers, Shin-Etsu, Siltronic, SK Siltron |
Where SUMCO sits in the stack
SUMCO's placements in this catalog cover 1 part, all in layer 1, compute silicon & packaging. None of them currently carries a sourced supply constraint tag. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Silicon wafers — The raw silicon wafers that foundries process into finished chips, produced by a small group of specialty wafer manufacturers.
Closest peers in this catalog
| Company | Shared parts | Including | |
|---|---|---|---|
| GlobalWafers | 1 | Silicon wafers | |
| Shin-Etsu | 1 | Silicon wafers | |
| Siltronic | 1 | Silicon wafers | |
| SK Siltron | 1 | Silicon wafers |
Questions about SUMCO
- What does SUMCO make for AI data centers?
- This catalog places SUMCO on 1 part: Silicon wafers (manufacturer).
- Is SUMCO publicly traded?
- Yes — SUMCO is listed on Tokyo Stock Exchange under 3436.T. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
- Where is SUMCO based?
- Japan, per the company record in this catalog.
- Who else makes silicon wafers for AI data centers?
- GlobalWafers, Shin-Etsu, Siltronic and SK Siltron are also placed on Silicon wafers in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For SUMCO the mix is 1 disclosed. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.