Invention Grant
US08904560B2 Closed loop controller and method for fast scanning probe microscopy
有权
闭环控制器和快速扫描探针显微镜的方法
- Patent Title: Closed loop controller and method for fast scanning probe microscopy
- Patent Title (中): 闭环控制器和快速扫描探针显微镜的方法
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Application No.: US11800679Application Date: 2007-05-07
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Publication No.: US08904560B2Publication Date: 2014-12-02
- Inventor: Jian Shi , Chanmin Su , Craig Prater , Ji Ma
- Applicant: Jian Shi , Chanmin Su , Craig Prater , Ji Ma
- Applicant Address: US CA Santa Barbara
- Assignee: Bruker Nano, Inc.
- Current Assignee: Bruker Nano, Inc.
- Current Assignee Address: US CA Santa Barbara
- Agency: Boyle Frederickson S.C.
- Main IPC: G01Q10/04
- IPC: G01Q10/04 ; G01Q30/06 ; G01Q10/06 ; B82Y35/00

Abstract:
A method of operating a metrology instrument includes generating relative motion between a probe and a sample at a scan frequency using an actuator. The method also includes detecting motion of the actuator using a position sensor that exhibits noise in the detected motion, and controlling the position of the actuator using a feedback loop and a feed forward algorithm. In this embodiment, the controlling step attenuates noise in the actuator position compared to noise exhibited by the position sensor over the scan bandwidth. Scan frequencies up to a third of the first scanner resonance frequency or greater than 300 Hz are possible.
Public/Granted literature
- US20080277582A1 Closed loop controller and method for fast scanning probe microscopy Public/Granted day:2008-11-13
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