Jm. Kim et al., FABRICATION AND CHARACTERIZATION OF LATERAL CUSP-EDGE AND KNIFE-EDGE GEOMETRY CATHODES, Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 11(2), 1993, pp. 459-463
Two lift-off techniques are demonstrated to form lateral field emissio
n cathodes by shadowing a sputter deposition for tungsten composite. A
current of 26 muA is observed for ''knife-edge'' cathodes of 23 mum e
dge length. The I-V characteristics are consistent with the Fowler-Nor
dheim relationship. The effect of focusing electrodes for increasing a
node collection efficiency is consistent with our electron trajectory
tracing simulations. The fabrication process for these devices is desc
ribed in detail.