Frequently Asked Questions
Will the THoT tool replace my AFM?
AFM Simulation by Laser Doppler Vibrometer.pdf
How does the LDV work?
Doppler Vibrometer Principles Video.wmv
If nano-defects are below the optical limit, how do we know they are there?
Defect Rotation Demonstration.pdf
Defect Threshold Variation Demonstration.pdf
Nano-Defect Height – Depth Separation.pdf
How do “Gain” setting affect my Optical Glide and Optical Certification data?
How does the laser work?
Doppler Vibrometer Principles Video.wmv
My dual sided system has different laser beam intensities, how will this affect my readings?
Doppler Vibrometer Principles Video.wmv
Can I use PSLs to calibrate the THoT tool?
Inaccuracies of the PSL Sphere Calibration Technique.pdf
How do the laser range settings work?
How do I set the power on the laser marker for my Defect Analysis Station?
Laser Marker Power Settings.pdf
I have an older model morphology or defect tool, what are the improvements in the new tool?
Gain – Bandwidth Improvement.pdf
How can the tool differentiate between pits and asperities?
Pits and Asperities (OG-OC) Discrimination.pdf
How is the calibration established for the Power Spectral Density and Filtered Waviness Tests.
What tests should I use at various process stages?
What are the latest improvements for morphology tests?
Gain – Bandwidth Improvement.pdf
Can the LDV make AFM type measurements?
AFM Simulation by Laser Doppler Vibrometer.pdf
How can I verify the AFM correlation?