The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 1999
Filed:
Sep. 09, 1997
Babu Chalamala, Chandler, AZ (US);
Arthur J Ingle, Chandler, AZ (US);
Charles Rowell, Tempe, AZ (US);
Thomas L Credelle, Phoenix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method for in situ cleaning of electron emitters (126, 226, 326, 526) in a field emission device (100, 200, 300, 400, 500) includes the steps of controllably providing hydrogen gas (142, 242, 342, 542) within the field emission device (100, 200, 300, 400, 500) at a time during the operational life of the field emission device (100, 200, 300, 400, 500) and, thereafter, emitting electrons from the electron emitters (126, 226, 326, 526), thereby forming hydrogen free radicals, which decontaminate and condition the emissive surfaces of the electron emitters (126, 226, 326, 526).