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:
Sep. 19, 1995
Filed:
Mar. 25, 1994
Peter Coxon, Buxted, GB;
Bruce J McIntosh, East Grinstead, GB;
Fisons plc, Ipswich, GB;
Abstract
A charged particle analyzer which irradiates a specimen and analyzes charged particles emitted therefrom, for example a photo electron spectrometer, having a flood-source which emits charged particles to neutralize the charge which develops on a specimen. The analyzer is provided with electrostatic and magnetic lenses which may be used separately or in combination. The flood source is provided within the lens column of the analyzer and is arranged such that when the electrostatic lens is in use, the charged particles emitted by the flood source pass around the outside of the objective electrostatic lens element, whereas when the magnetic lens is in use, or when both lenses are in use, they pass through that element.