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:
Feb. 28, 2012
Filed:
Jun. 29, 2009
John A. Notte, Iv, Gloucester, MA (US);
Randall Percival, Raymond, NH (US);
Colin A. Sanford, Atkinson, NH (US);
Alexander Grohloski, Salem, MA (US);
John A. Notte, IV, Gloucester, MA (US);
Randall Percival, Raymond, NH (US);
Colin A. Sanford, Atkinson, NH (US);
Alexander Grohloski, Salem, MA (US);
Carl Zeiss NTS, LLC, Peabody, MA (US);
Abstract
Disclosed are charged particle systems that include a tip, at least one gas inlet configured to supply gas particles to the tip, and a element having a curved surface positioned to adsorb un-ionized gas particles, and to direct desorbing gas particles to propagate toward the tip. The charged particle systems can include a field shunt connected to the tip, and configured to adjust an electric field at an apex of the tip.