The Xactix e-1 is a XeF2 (xenon difluoride) isotropic silicon etcher. XeF2 is a vapor phase etch, which exhibits nearly very high selectivity of silicon to photo-resist, silicon dioxide, silicon nitride and aluminum. The e-1 Series can be used to etch silicon wafers, up to 6” in diameter, wafer pieces, die, or other structure into the etch chamber. Details of the process sequence are controlled and captured by the control software. The etch progress can be monitored through the transparent chamber lid.
Isotropic Si etching; can be used for backside Si removal on small pieces