The Lam Research Rainbow 4720 is a semiconductor etch tool that supports 8-inch (200mm) wafers.
Cited variants
| Designation | Generation | Vintage | Changes | Source |
|---|
| Rainbow 4720 Dry | — | — | Dry etch variant | waferpedia.com[1] |
| Rainbow 4720 Metal Etch | — | — | Metal etch variant | semistarcorp.com[2] |