Cold cathode vacuum discharge tube

Patent · Mon Mar 09 23:00:00 EST 1998

OSTI ID:597162

Boettcher, G E

A cold cathode vacuum discharge tube, and method for making same, are disclosed with an interior surface of the trigger probe coated with carbon deposited by carbon vapor deposition (CVD) or diamond-like carbon (DLC) deposition. Preferably a solid graphite insert is employed in the probe-cathode structure in place of an aluminum bushing employed in the prior art. The CVD or DLC probe face is laser scribed to allow resistance trimming to match available trigger voltage signals and to reduce electrical aging. 15 figs.

• Research Organization: AT&T Corporation
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• Assignee: Sandia Corp., Albuquerque, NM (United States)
• Patent Number(s): US 5,725,408/A/
• Application Number: PAN: 8-725,421
• OSTI ID: 597162
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COATINGS
COLD CATHODE TUBES
DESIGN
FABRICATION
SURFACE TREATMENTS