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AssigneeMatsushita Electric Works, Ltd.
InventorsTakuya Komoda, Tsutomu Ichihara, Koichi Aizawa, Yoshiaki Honda, Yoshifumi Watabe, Takashi Hatai, Yoshiyuki Takegawa, Toru Baba
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An electron source (10) has an electron source element (10a) including a lower electrode (12), a drift layer (6) and a surface electrode (7). The drift layer (6) is interposed between the lower electrode (12) and the surface electrode (7). When a certain voltage is applied between the surface electrode (7) and the lower electrode (12) such that the surface electrode (7) has a higher potential than that of the lower electrode (12), a resultingly induced electric field allows electrons to pass through the drift layer (6) and then the electrons are emitted through the surface electrode (7). When a forward-bias voltage is applied between the surface electrode (7) and the lower electrode (12), a reverse-bias voltage is applied after the forward-bias voltage has been applied to release out of the drift layer (6) an electron captured by a trap (9) in the drift layer (6).
A method of biasing a field emission-type electron source comprising an electron source element which includes a lower electrode, a surface electrode, and a strong-field drift layer interposed between said lower and surface electrodes to allow electrons to pass therethrough according to an electric field induced by applying a forward voltage between said lower and surface electrodes such that said surface electrode has a higher potential than that of said lower electrode, in which the electrons passing through said strong-field drift layer are emitted through said surface electrode, wherein
A method of biasing a field emission-type electron source comprising electron source elements each of which includes a lower electrode, a surface electrode, and a strong-field drift layer interposed between said lower and surface electrodes to allow electrons to pass therethrough according to an electric field induced by applying a forward voltage between said lower and surface electrodes such that said surface electrode has a higher potential than that of said lower electrode, in which the electrons passed through said strong-field drift layer are emitted through said surface electrode, wherein
A field emission-type electron source comprising:
Dependencies are inferred from the claim text.