Title:
【発明の名称】電子放出素子
Document Type and Number:
Japanese Patent JP2601464
Kind Code:
B2
Abstract:
PURPOSE:To control the electron emission by light with a simple structure easy for integration by providing a P-type semiconductor region having an electrode on a transparent electrode and radiating light from the transparent electrode. CONSTITUTION:When the high-potential voltage is applied across a transparent electrode 1 and a metal electrode 3 provided on a P-type semiconductor region 2 formed on it and light hv is radiated from the electrode 1 side, electrons are excited by the light in the region 2 and accelerated by the electric field and emitted from only the surface of the work function reduced layer 4 of the recess of the electrode 3, and the quantity of electron emission is controlled by the applied voltage and the light quantity. Accordingly, electron emission can be efficiently controlled by light with a simple structure easy for integration.
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Inventors:
Suzuki Akira
Takeo Tsukamoto
Akira Shimizu
Masao Sugada
Shimoda Isamu
Masahiko Okunuki
Takeo Tsukamoto
Akira Shimizu
Masao Sugada
Shimoda Isamu
Masahiko Okunuki
Application Number:
JP29768386A
Publication Date:
April 16, 1997
Filing Date:
December 16, 1986
Export Citation:
Assignee:
Canon Inc
International Classes:
H01L31/10; H01J1/30; H01J1/34; (IPC1-7): H01J1/34; H01J1/30
Domestic Patent References:
| JP63141235A | ||||
| JP6391926A | ||||
| JP478256B1 | ||||
| JP4733537B1 |
Attorney, Agent or Firm:
Yamashita