Electron beam-induced etching
    3.
    发明授权

    公开(公告)号:US10304658B2

    公开(公告)日:2019-05-28

    申请号:US14802648

    申请日:2015-07-17

    申请人: FEI Company

    摘要: Beam-induced etching uses a work piece maintained at a temperature near the boiling point of a precursor material, but the temperature is sufficiently high to desorb reaction byproducts. In one embodiment, NF3 is used as a precursor gas for electron-beam induced etching of silicon at a temperature below room temperature.