CR Series
- ⦿ Cr series is an acid-type etchant.

| Products | *Etching rate (nm/min) | Features |
| Cr-201 | 70(25℃) | Little damage to Au, Qz |
| Cr-301 | 7(25℃) | Little damage to Au, Qz |
*Etching condition : no stirring

| Products | *Etching rate (nm/min) | Features |
| Cr-201 | 70(25℃) | Little damage to Au, Qz |
| Cr-301 | 7(25℃) | Little damage to Au, Qz |
*Etching condition : no stirring