Lampoly is a Transformer Coupled Plasma (TCP) etcher, generates a uniform, high density plasma for selective etching of silicon and polysilicon. It has two independent 13.56 MHz RF power supplies which deliver high and low power to the upper and lower electrodes, respectively. A high density discharge is generated by the higher-power RF supply by inductive coupling of a planar source coil to the gas in the chamber.; Clean category; for polysilicon and single crystal Silicon etches; maximum etch depth 3um.
Single wafer etch with auto-loading from a cassette. Equipment originally used for gate etching with high selectivity to thin gate oxides.