MICHAEL BERGESON
Pilots at Holly St, Fremont, CA
License number
California A2550995
Issued Date
Jul 2016
Expiration Date
Jul 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
37142 Holly St, Fremont, CA 94536
Professional information
Magnetic Rotational Hardstop For Robot
US Patent:
2010027, Nov 4, 2010
Filed:
Apr 29, 2009
Appl. No.:
12/432620
Inventors:
Rich Blank - San Jose CA, US
Jim Roberts - San Jose CA, US
Wayne Tang - Union City CA, US
Michael Bergeson - Fremont CA, US
Jim Roberts - San Jose CA, US
Wayne Tang - Union City CA, US
Michael Bergeson - Fremont CA, US
Assignee:
Novellus Systems, Inc. - San Jose CA
International Classification:
H01L 21/68, B25J 18/00, F16D 71/00
US Classification:
4147491, 7449001, 192139
Abstract:
Rotational hardstop assemblies that provide greater than 360 degrees of non-continuous rotation for rotating mechanisms are provided. In certain embodiments, an assembly is used to provide 630 or more degrees of rotation for the shoulder axis of a robot, such as a wafer transfer robot. The rotational hardstop assemblies include opposing magnets as springs. According to various embodiments, the opposing magnets provide non-contact engagement and produce no contact noise nor have any wear over time. The rotational hardstop assemblies provide the ability to location from either direction of rotation of a robot cylindrical coordinate system.