Title:
【発明の名称】半導体カソードを有する電子管
Document Type and Number:
Japanese Patent JP2002519814
Kind Code:
A
Abstract:
An electron tube provided with a semiconductor cathode for emitting electrons, which semiconductor cathode is arranged on a support, a source being arranged in the vicinity of the cathode, in particular, so as to face the free (Si) surface of the cathode, which source is capable of evolving, at the increased temperatures occurring during evacuation of the tube in the manufacturing process, a reducing agent such as F2 or HF, which passivates the free (Si) surface of the cathode.
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Inventors:
Gering frederick sea
Clone ron
Van Zutphen Tom
Clone ron
Van Zutphen Tom
Application Number:
JP2000556385A
Publication Date:
July 02, 2002
Filing Date:
June 07, 1999
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
H01J3/02; H01J1/308; H01J9/02; H01J9/385; H01J29/04; H01J29/48; (IPC1-7): H01J1/308; H01J3/02; H01J9/02; H01J9/385; H01J29/04; H01J29/48
Attorney, Agent or Firm:
Susumu Tsugaru