Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Reexamination Certificate
2003-07-30
2009-06-30
Williams, Joseph L (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
C313S309000, C313S336000, C313S351000, C445S024000
Reexamination Certificate
active
07554255
ABSTRACT:
An electric field emission device having a triode structure is fabricated by using an anodic oxidation process. The device includes a supporting substrate, a bottom electrode layer to be used as an cathode electrode of the device, a gate insulating layer having a plurality of first sub-micro holes, a gate electrode layer having a plurality of second sub-micro holes connecting to the first sub-micro holes, an anode insulating layer having a plurality of third sub-micro holes connecting to the second sub-micro holes, a top electrode layer for hermetically sealing the device, the top electrode layer being used as an anode of the device and a plurality of emitters formed in the first sub-micro holes. The emitters are formed so as to come into as close contact as possible to the electrodes of the device, which results in decreasing a driving voltage.
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Patent Abstracts of Japan, vol. 00, N 06; Sep. 22, 2000, & JP 2000086216 A (Tokyo Shibaura) Mar. 28, 2000, abstract, Fig. 7 and paragraphs 0049, 0050 of English translation.
Hwang Sun-Kyu
Jeong Soo-Hwan
Lee Kun-Hong
Bacon & Thomas PLLC
Postech Foundation
Quarterman Kevin
Williams Joseph L
LandOfFree
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