Patent ID: 11955366
Assignee: LAM RESEARCH CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 10:
11. An assembly for use in a process chamber, comprising:
a pedestal assembly including a pedestal movably mounted to a main frame;
a lift pad configured to rest about a pedestal top surface of the pedestal and move with the pedestal assembly; and
a lift pad raising mechanism configured to separate the lift pad from the pedestal, the lift pad raising mechanism including:
a main frame extension fixedly coupled to the main frame;
a lower hard stop fixedly coupled to the main frame extension;
a pedestal bracket movably coupled to the main frame, the pedestal bracket fixedly interconnected to the pedestal, wherein movement of the pedestal bracket translates into movement of the pedestal;
a first pedestal bracket extension fixedly coupled to the pedestal bracket and including a first bracket roller;
a second pedestal bracket extension fixedly coupled to the pedestal bracket and including a second bracket roller;
a slide interconnected to the pedestal bracket;
a lift pad bracket movably coupled to the slide, the lift pad bracket interconnected to the lift pad;
a lever rotatably attached to a pin of the lift pad bracket, wherein the lever is loosely constrained between the first bracket roller and the second bracket roller when not engaged with the lower hard stop in a neutral position;
wherein when the pedestal bracket is moving downwards towards a bottommost downwards position, the lever is configured to rotate about the pin when engaged with the lower hard stop and the first bracket roller and separate the lift pad from the pedestal top surface of the pedestal.