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    • 15. 发明专利
    • DRIVING METHOD FOR ELECTRIC FIELD ELECTRON DISCHARGING TRIODE
    • JPH0440107A
    • 1992-02-10
    • JP14809790
    • 1990-06-06
    • SEIKO EPSON CORP
    • KOMATSU HIROSHI
    • H01J19/38H01J19/24H01J21/06H01J21/10H03F3/02
    • PURPOSE:To proportionally control an anode output to a gate control signal so as to use it for driving a linear amplifier or an optical conversion device by controlling an anode current according to a gate current flowing from a gate electrode to a cathode electrode. CONSTITUTION:The electric field electron discharging triode is composed of a projected cathode electrode 3 which is formed on the surface of an (n) type silicon monocrystal substrate 1 by unisotropic etching, gate electrode 4 which is formed on the surface of the substrate 1 through an insulated film 2 of silicon oxide and equipped with an opening part near the projected tip of the cathode electrode 3, and anode electrode 5 which is arranged opposite through a vacuum layer 7 to the cathode electrode 3 and formed on the surface of an insulated substrate 6. In the state of grounding the cathode electrode 3, a constant positive potential VA is impressed to the anode elec trode 5 and as the gate control signal, a current source 27 is connected to the gate electrode 4. At such a time, a current (anode current Io) flowing to the anode electrode 5 is alpha times as large as the current amplification factor of a current value Ii in the current source 27 and on the condition of Io=alpha.Ii, the anode current is controlled in proportion to the gate control signal.