Patent · US Active

Process for improving the emission of electron field emitters

US8070906B2 · kind B2 · utility

2Cited by

30References

18Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Robert Joseph Bouchard · Wilmington, US
Lap-Tak Andrew Cheng · Newark, US
David Herbert Roach · Hockessin, US
John Gerard Lavin · Swarthmore, US

Key dates

Filing date	Jul 16, 2008
Grant date	Dec 6, 2011
Priority date	—
Expiry date	Dec 13, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2329/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.