Nanoscale Vacuum Tubes

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Nanoscale Vacuum Tubes

  1. 1. Pros and Cons of vacuum tube and MOSFET Vacuum Tube MOSFET Nano Vacuum Tube + High power + Cheap + CMOS process + High performance + Reliable + Cheap + Radiation hard + Long lifetime + Long lifetime - Bulky, Fragile + Range of applications + High power - Expensive - End of scaling + High performance - Short Lifetime - Low breakdown + Range of applications - Power consumption + Radiation hard Vacuum ambient <50nm Cathode Anode <5nm Back gateARCTek3
  2. 2. Preliminary Nano Vacuum Tube StructureMOSFET G D S 150 nmVacuum field-emission transistor 25 Collector current, Ic (A) Collector current, Ic (µ A) -6 20 10 E 15 SS=4.2V/dec C -8 10 10 -10 5 10 G 0 VT=8.8V -12 10 -4 -2 0 2 4 6 8 10 12 Gate voltage, Vg (V)ARCTek3

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