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:
Jan. 28, 2020
Filed:
Dec. 19, 2018
Applicant:
Agilent Technologies, Inc., Santa Clara, CA (US);
Inventors:
Mingda Wang, Fremont, CA (US);
Maozi Liu, Fremont, CA (US);
Patrick D. Perkins, Sunnyvale, CA (US);
Jing Tang, San Jose, CA (US);
Assignee:
Agilent Technologies, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/04 (2006.01); H01J 49/24 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0404 (2013.01); H01J 49/0422 (2013.01); H01J 49/24 (2013.01);
Abstract
An ion transfer device includes a tube, a resistive layer on an inside surface of the tube, and a dielectric layer on the resistive layer. The device defines a conduit providing a transfer path for gas and ions. The conduit is surrounded by the dielectric layer. The dielectric layer protects the resistive layer from the chemical environment in the conduit, while being thin enough to allow charges to pass through the dielectric layer and be dissipated by the resistive layer.