Boron is deposited on the (110) plane facet at the center of a tungsten electron emitter tip by chemical vapor deposition of boron triiodide. The emission current density is greatest in the center of the emitting area (FIG. 2).
P. D. Ownby, "Electron Emitter Tips and Method," U.S. Patents, Mar 1970.
Materials Science and Engineering
© 1970 Battelle Development Corp, All rights reserved.
10 Mar 1970