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:
Feb. 25, 2020
Filed:
Oct. 30, 2018
Lam Research Corporation, Fremont, CA (US);
Paul Konkola, West Linn, OR (US);
Karl F. Leeser, West Linn, OR (US);
Easwar Srinivasan, Portland, OR (US);
Lam Research Corporation, Fremont, CA (US);
Abstract
An assembly used in a process chamber for depositing a film on a wafer including a pedestal assembly having a pedestal movably mounted to a main frame. A lift pad rests upon the pedestal and moves with the pedestal. A raising mechanism separates the pad from the pedestal, and includes a hard stop fixed to the main frame, a roller attached to the pedestal assembly, a slide moveably attached to the pedestal assembly, a lift pad bracket interconnected to the slide and a pad shaft extending from the lift pad, a lever rotatably attached to lift pad bracket, a ferroseal assembly surrounding the pad shaft, and a yoke assembly offsetting a moment to the ferroseal assembly when the lever rotates. When the pedestal assembly moves upwards, the lever rotates when engaging with the upper hard stop and roller, and separates the pad from the pedestal by a process rotation displacement.