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:
May. 12, 2020
Filed:
Sep. 26, 2017
Applicant:
Perkinelmer Health Sciences Canada, Inc., Woodbridge, CA;
Inventors:
Tak Shun Cheung, Toronto, CA;
Chui Ha Cindy Wong, Markham, CA;
Assignee:
PerkinElmer Health Sciences Canada, Inc., Woodbridge (ON), CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/42 (2006.01); H01J 1/02 (2006.01); H01J 49/02 (2006.01); H01G 4/012 (2006.01); H01G 4/10 (2006.01); H01G 4/008 (2006.01); H01G 4/38 (2006.01); H01G 4/30 (2006.01); H01G 4/12 (2006.01); H01J 49/06 (2006.01);
U.S. Cl.
CPC ...
H01J 49/022 (2013.01); H01G 4/0085 (2013.01); H01G 4/012 (2013.01); H01G 4/105 (2013.01); H01G 4/129 (2013.01); H01G 4/30 (2013.01); H01G 4/38 (2013.01); H01J 1/02 (2013.01); H01J 49/063 (2013.01); H01J 49/421 (2013.01); H01J 49/4215 (2013.01); H01J 49/4225 (2013.01);
Abstract
Certain configurations of a stable capacitor are described which comprise electrodes produced from materials comprising a selected coefficient of thermal expansion to enhance stability. The electrodes can be spaced from each other through one of more dielectric layers or portions thereof. In some instances, the electrodes comprise integral materials and do not include any thin films. The capacitors can be used, for example, in feedback circuits, radio frequency generators and other devices used with mass filters and/or mass spectrometry devices.