Nanomanufacturing Concerns about Measurements Made in the SEM Part V. Dealing with Noise
Michael T. Postek, Andras Vladar
Scanning electron microscopes (SEM) are used extensively in research and advanced manufacturing for materials characterization, metrology and process control. Unfortunately, noise can limit the specimen-specific detail and information that can be acquired in any SEM micrograph, or measurement made from those data. The majority of SEM measurements are done at low primary electron beam currents and fast imaging mode resulting in rather noisy signals - often too noisy. The amount and the type of the noise and the steps taken to deal with it are critical to the quality and amount of the information gathered. This fifth presentation, in this series of SEM dimensional metrology tutorial papers, discusses some of the various causes of measurement uncertainty in scanned particle beam instruments specifically dealing with signal-to-noise (SNR) and its contribution to measurement imprecision.
Nanoengineering: Fabrication, Properties, Optics, and Devices XIII
August 28-September 3, 2016
San Diego, CA
2016 SPIE Optics and Photonics
noise, management, de-noising, calibration, charging, measurements, metrology, scanning electron microscope, SEM
and Vladar, A.
Nanomanufacturing Concerns about Measurements Made in the SEM Part V. Dealing with Noise, Nanoengineering: Fabrication, Properties, Optics, and Devices XIII, San Diego, CA
(Accessed May 29, 2023)