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We are developing volcano-structured double-gate Spindt-type field emitter array (VDGS-FEA) that is applicable for image sensors. The FEA have good focusing characteristics without current degradation under the beam focusing condition. In this paper, we will present detailed fabrication and typical emission characteristics of VDGS-FEA.
Robustness of field emitter arrays against high-energy X-ray irradiation was demonstrated. The current-voltage characteristics of the field emitter array were investigated in a vacuum chamber connected to an electron accelerator. The electron beam with an energy of 1 MeV was incident onto a tungsten thin plate to produce X-rays. The field emitter array showed the almost identical current-voltage characteristics...
We have developed a highly sensitive, compact image sensor that comprises a field emitter array (FEA) and a high-gain avalanche-rushing amorphous photoconductor target, with the ultimate aim of developing an ultrahighly sensitive, compact, high-definition television camera. Double-gated FEs have an advantage of having a compact electron beam focusing system; however, image intensities reproduced by...
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