Electron tube with stepped fixing portion
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United States of America Patent
Stats
-
Nov 20, 2007
Grant Date -
Aug 5, 2004
app pub date -
Feb 2, 2004
filing date -
Feb 3, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a fluorescent display tube, a metal spacer is used as a height sustaining member and a fixing member of linear member so that the fixing strength of the linear member in the lengthwise direction is increased. In the fluorescent display tube, both ends of filament and Al wires are bonded onto a cathode electrode formed on a substrate by ultrasonic bonding. The ends of the filament are embedded in a part in the Al wires in the shape of being bent into a letter Z or an inverted letter Z to form fixing portion.
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Cited Art Landscape
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