PURPOSE: To increase the quantity of emitted electrons and also, reduce the deterioration by the inversion as well as polarization within ferroelectrics so as to stabilize the emission of electrons, by forming an electron emission face electrode with a specified thickness on the surface of ferroelectrics, and also, impressing either positive or negative electric field to an operating electric field.
CONSTITUTION: An electron emission face electrode 1 is made of material used generally as an electrode such as Pt or the like into a thickness not more than 5000, preferably, 50-100 all over the surface of ferroelectrics by sputtering or the like, and it is earthed through a pad electrode 2. The ferroelectrics 3 are made in a thickness of 10nm-200nm made of material such as PZT ceramics, and either positive or negative electric field is applied by a pulse generator to an electric field 4 for impression of an operating electric field made of Pt or the like. Hereby, the emission of a large amount of electrons is made possible by enlarging the area of the electron emission area, and also the emission of electrons stable for a long period can be performed by reducing the fatigue caused by the inversion as well as polarization occurring inside the ferroelectrics.
| JP2010272209 | ELECTRON EMISSION ELEMENT AND MANUFACTURING METHOD OF THE SAME |
| WO/2001/026128 | ELECTRON SOURCE, METHOD OF MANUFACTURE THEREOF, AND DISPLAY DEVICE |
| JP2001110300 | FIELD EMISSION CATHODE |
OMURA SEIJI
SHIMOKATA MIKIO
OKUYAMA MASANORI
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