Electron beam applying apparatus and drawing apparatus
AssigneesRicoh Company, Ltd., Crestec Corporation
InventorsTakeshi Miyazaki, Hideyuki Ohyi, Takashi Obara
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AssigneesRicoh Company, Ltd., Crestec Corporation
InventorsTakeshi Miyazaki, Hideyuki Ohyi, Takashi Obara
Estimating the term…
An electron beam applying apparatus includes: a thermal field emission type electron source emitting an electron beam; an electrostatic lens disposed immediately below the electron source and acting as a condensing electrode for condensing the electron beam in a first angular aperture emitted by the electron source in a second angular aperture smaller than the first angular aperture; a condenser lens disposed on a downstream side of the electrostatic lens and condensing the electron beam condensed in the second aperture angel by the electrostatic lens in a crossover point; and an objective lens disposed on a downstream side of the condenser lens and condensing the electron beam condensed in the crossover point by the condenser lens on the surface of the material.
An electron beam applying apparatus for applying an electron beam to a surface of a material for recording information on the surface of the material, comprising:
An electron beam applying apparatus for applying an electron beam to a surface of a material for recording information on the surface of the material, comprising:
Dependencies are inferred from the claim text.