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. 09, 2025
Filed:
Oct. 01, 2019
Oxford Instruments Nanotechnology Tools Limited, Abingdon, GB;
Gary Proudfoot, Ardington, GB;
Gareth Waters, Bassaleg, GB;
Annika Peter, Abingdon, GB;
Mike Cooke, Bristol, GB;
Aileen O'mahony, Abingdon, GB;
Oxford Instruments Nanotechnology Tools Limited, Abingdon Oxon, GB;
Abstract
A plasma generation electrode array for a plasma processing tool is described. The plasma processing tool comprises a processing chamber and a substrate table therein for supporting a substrate in use on which material is to be deposited and/or etched. The electrode array comprises a plurality of ground electrodes and at least one live electrode, the plurality of ground electrodes not being in electrical contact with the at least one live electrode, and arranged such the ground electrodes and live electrode(s) alternate with one another along a first direction in a first plane which is substantially parallel to the substrate table in use. The ground and live electrodes are spaced from one another along the first direction, wherein each of the ground and live electrodes extends from a base thereof to a distal end thereof in a second direction which is substantially perpendicular to the first plane. The ground electrodes and the at least one live electrode are arranged such that the distal ends of the ground electrodes are positioned further along the second direction than the distal end(s) of the at least one live electrode(s) such that, in use, the distal ends of the ground electrodes are closer, in the second direction, to the substrate table than are the distal end(s) of the at least one live electrode(s).