Electric discharge processing method for an electron tube using a field emission cold cathode device
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United States of America Patent
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Apr 30, 2002
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N/A
app pub date -
Apr 6, 2000
filing date -
Apr 6, 1999
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Abstract
The present invention provides a method of carrying out an electric discharge processing to an electron tube having a field emission cold cathode device, wherein at least a high voltage electrode of the electron tube is maintained in a high voltage range, whilst all electrodes of the electron tube except for the at least high voltage electrode are maintained in a lower voltage range than the high voltage range.
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