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:
Mar. 02, 2010
Filed:
Aug. 29, 2005
Jennifer Y. Sun, Sunnyvale, CA (US);
James Dempster, Reno, NV (US);
Semyon L. Kats, San Francisco, CA (US);
Allen Fox, Sunnyvale, CA (US);
Jennifer Y. Sun, Sunnyvale, CA (US);
James Dempster, Reno, NV (US);
Semyon L. Kats, San Francisco, CA (US);
Allen Fox, Sunnyvale, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
An electrostatic chuck has an electrode embedded in a dielectric which is mounted on a pedestal. The dielectric has a contact surface with an average surface roughness of less than about 0.5 μm, a surface peak waviness of less than about 0.12 μm, and a surface peak waviness material ratio of greater than about 20%. The surface texture can be formed by lapping the dielectric surface with a slurry of abrasive particles.