Accession Number : ADA306006

Title :   Thermomechanical Effects in Metal Field Emitter Structures,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Ancona, M. G.

PDF Url : ADA306006

Report Date : 22 MAR 1996

Pagination or Media Count : 12

Abstract : Analytical and numerical results concerning thermal and mechanical effects in operating metal field emitter structures (tips, gates and anodes) are summarized. For the most part, it is found that such effects are too small to constitute a reliability threat unless the geometries (via their effect on heat sinking) or the operating frequencies (via their ac heating contribution) are extreme. For ideal structures of conventional (SRI-like) geometry under normal operating conditions the only two thermomechanical effects with the potential for triggering failure are; (1) anode heating due to electron impact and (2) Maxwell stress on the field emitter tip.

Descriptors :   *THERMOMECHANICS, *EMITTERS, *RELIABILITY(ELECTRONICS), *FIELD EMISSION TUBES, METALS, NUMERICAL ANALYSIS, ALTERNATING CURRENT, ELECTRON IMPACT SPECTRA, HEAT SINKS, FAILURE(ELECTRONICS), ANODES.

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE