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.

Date of Patent:
Mar. 09, 2010

Filed:

May. 29, 2008
Applicants:

Michael Konicek, Santa Clara, CA (US);

Adrian Land, San Carlos, CA (US);

Gershon Perelman, Cupertino, CA (US);

Lee Earley, San Jose, CA (US);

Mark Hardman, Santa Clara, CA (US);

Inventors:

Michael Konicek, Santa Clara, CA (US);

Adrian Land, San Carlos, CA (US);

Gershon Perelman, Cupertino, CA (US);

Lee Earley, San Jose, CA (US);

Mark Hardman, Santa Clara, CA (US);

Assignee:

Thermo Finnigan LLC, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/42 (2006.01); H05H 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Auxiliary electrodes for creating drag fields may be provided as arrays of finger electrodes on thin substrates such as printed circuit board material for insertion between main RF electrodes of a multipole. A progressive range of voltages can be applied along lengths of the auxiliary electrodes by implementing a voltage divider that utilizes static resisters interconnecting individual finger electrodes of the arrays. Dynamic voltage variations may be applied to individual finger electrodes or to groups of the finger electrodes.


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