Virtual Event, Actual Science

Accurate Metrology for Micro- and Nano-Fabrication with Stylus Profilometry

Learn from our experts as they discuss and demonstrate critical surface measurements and surface profilometry best practices.

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Explore Advances in Stylus-Based Profilometry

In this workshop, Accurate Metrology for Micro- and Nano-Fabrication with Stylus Profilometry, our speakers discuss key aspects of stylus profilometry, including the details researchers need to know to obtain reliable and repeatable results.

Particular attention is paid to the following topics:

  • What does a stylus profilometer measure?
  • How does a stylus profilometer work?
  • What tests, applications, and sample materials are stylus profilometers ideally suited for?
  • How do you select the right stylus probe for your application?

 

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Learn About the Applications and Best-Practices of Stylus Profilometry

This presentation includes:

  1. An overview of the main components and measurement capabilities of stylus profilometers.
  2. A review of how stylus size and shape impact data acquisition, as well as when to use different types of stylus probes.
  3. Real-time demonstrations of several measurements for process verification, including using a stylus profilometer to measure step height, surface roughness, and wafer bow/film stress.

 

This workshop was recorded on: March 17, 2021

Program Notes

Many processes during micro/nano-fabrication require accurate and repeatable validation of surface profiles to ensure optimum product. In this workshop, we discuss aspects critical to achieving reliable and repeatable metrology using contact-type or stylus-type profilometers. You’ll see, through real-time demonstration, several common and important measurements for process verification.

Specifically, we address how to:

  • Accurately measure repetitive features for their height/depth, width, and pitch with ‘Trace Analysis’ software;
  • Confidently use a stylus profilometer to measure surface roughness by selecting a stylus based on international standards and quantifying different roughness and waviness parameters;
  • Automate critical measurements and data analysis;
  • Obtain accurate measurements on hard and soft films by selecting the right stylus size and force;
  • Determine the nature and magnitude of film-induced stress across an entire wafer; and
  • Measure small surface details with 3D areal mapping and sharp stylus probe.

Additionally, we review best-practices for successful, repeatable step height and film thickness measurement using a stylus profilometer, as well as the functionalities that are fundamental to achieving the best results (including tilt correction, substrate form removal, step detection, etc.). We also highlight some of the DektakXT features and functionalities that make it an excellent tool for validating lithography, thin film deposition, etching, and micromachining steps where there is a need to measure small step heights.