# Gases

Part ID: 1.20e · Layer 1 (Compute silicon & packaging) · child of 1.20

Specialty and bulk gases consumed throughout the fabrication process, from etching to chamber purging.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| Air Liquide | manufacturer | inferred | public | AI.PA |  |
| Air Products | manufacturer | inferred | public | APD |  |
| Linde | manufacturer | inferred | public | LIN |  |
| Taiyo Nippon Sanso | manufacturer | inferred | public | 4091.T |  |

Confidence tags: disclosed = company/filing statement; reported = trade press or partner list; inferred = taxonomy lead.