Stylus Profilometry

Knowledge Pack: Stylus Profiler-Based Characterization of Thin Films

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Leveraging Stylus Profilometry for Film & Coating Characterization

^{RESOURCE TYPE: Video

LENGTH: ~10 minutes}

[00:00:00] Introduction to stylus profilometry
[00:01:27] Stylus profilometry main capabilities
[00:03:31] Solution for step height & thin films
[00:04:50] Solution for bow & thin film stress
[00:05:57] Semiconductor and microelectronics applications
[00:06:49] Vision64 software demonstration

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_DESCRIPTION:

Bruker metrology experts introduce the fundamentals of stylus profilometry for thin film and surface characterization. The session explains how stylus-based measurement provides direct, traceable step height and thickness values, and where it fits alongside optical techniques as a reference or validation method. It outlines key measurement types such as step height, film thickness, and stress, and provides context for when a mechanical measurement is preferred to reduce uncertainty.

Semiconductor applications are used as primary examples to illustrate how these measurements support process control and material analysis, while remaining broadly applicable to thin‑film and coating characterization workflows.

_{VIEWERS WILL LEARN:}

- When a direct stylus measurement is preferred for film thickness or step height
- The role of profilometry as a validation tool alongside optical methods
- Key measurement types used in thin film and coating characterization
- Core factors that influence confidence and repeatability in measurement results

Presented by Sandip Basu, Ph.D., Application Scientist, Bruker (July 7, 2021)

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Thin Film Stress Measurement Using Dektak Stylus Profilers

^{RESOURCE TYPE: Technical Note [PDF]

LENGTH: 4 pages}

^DESCRIPTION:This technical note explains how stylus profilometry is used to quantify thin film stress through wafer deformation and curvature measurements. It shows how direct surface measurements support stress calculations without relying on optical assumptions, and how radial mapping techniques improve confidence in results. The note provides practical context for applying these methods in thin film process development and characterization..

_{READERS WILL LEARN:}

How thin film stress is derived from measured surface deformation
Why direct mechanical measurement improves confidence in stress analysis
Key setup and mapping considerations that affect result accuracy
How stress data is used to evaluate and compare film processes

Stylus Profiling Metrology for Soft Matter – Film Thickness and Depth for Flexible Electronic and Microfluidic Devices

^{RESOURCE TYPE: Webinar

LENGTH: ~1 hour}

_{PRESENTATION HIGHLIGHTS:}

[00:00:00] Introduction to the speaker and Bruker's solutions for measuring film thickness
[00:04:18] Understanding the importance of thin & soft material layers in context
[00:07:44] Which technique to choose for thickness measurements of these materials?
[00:11:56] Demonstrating how effective stylus profilers are for thickness measurements
[00:20:37] How to ensure measurements of soft matter are accurate (with examples)
[00:37:01] How researchers use stylus profilers: Case studies & practical considerations
[00:43:50] Conclusion

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_DESCRIPTION:

Bruker stylus metrology experts examine the challenges of measuring thin, soft, and multilayer films and coatings, and how stylus profilometry is applied in these contexts. The session highlights the growing use of these materials in applications such as flexible electronics and microfluidics, then discusses key considerations for selecting appropriate thickness measurement techniques. It covers how stylus profilers are used to obtain reliable, physically grounded thickness data, what operators can do to avoid common pitfalls, and how parameter choices impact measurement accuracy, with real data and case studies showing how these approaches translate into real-world results.

_{VIEWERS WILL LEARN:}

- When stylus profilometry is suitable for measuring soft and multilayer materials
- Key considerations for selecting thickness measurement techniques
- Factors that influence thickness measurement data quality when working with delicate films
- Common pitfalls in stylus-based soft material measurements and how to mitigate them
- How these approaches are applied in real-world research and development contexts

Presented by Samuel Lesko, Senior Application Development Manager, Bruker (USA) (October 26 and November 17, 2021)

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Performing Step Metrology with Dektak Stylus Profilers

^{RESOURCE TYPE: Application Note [PDF]

LENGTH: 4 pages}

^DESCRIPTION:This application note presents step height measurement as a core thin-film use case for stylus profilometry. It shows how direct mechanical measurement provides a clear, traceable thickness or step value, and how this is used to validate optical results or resolve uncertainty in film measurements. The note outlines how setup, probe selection, and data processing influence accuracy and repeatability in practical measurement scenarios.

_{READERS WILL LEARN:}

Why step height measurement is used as a reference for film thickness
Practical considerations for obtaining reliable, traceable measurements
Common sources of error and their impact on thickness results
How step measurements are used to validate or support other metrology methods

Stylus Profiling for High Vertical Resolution and Long-Range Flatness Measurements

^{RESOURCE TYPE: Real-time technical demonstration

LENGTH: ~10 minutes}

_{PRESENTATION HIGHLIGHTS:}

[00:00:00] Step Height and Thin Film
[00:02:17] Bow and Thin Film Stress
[00:04:13] DektakXT demonstration

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_DESCRIPTION:

Bruker metrology experts demonstrate stylus profilometry techniques for high-resolution and long-range surface measurement. The session shows how flatness, curvature, and large-scale surface features are measured in practice, and what operators need to consider when working across different length scales. It includes measurement examples and software-based analysis, illustrating how profilometry data is acquired and interpreted for thin film and surface characterization.

_{VIEWERS WILL LEARN:}

- What defines high-resolution thickness and profile measurement in stylus profilometry
- Considerations for measuring films across short and long scan ranges
- What a measurement workflow looks like, from acquisition to analysis
- How direct profilometry data is used to support confident film characterization decisions

Presented by Samuel Lesko, Ph.D., Technology and Applications Development Director, Bruker; and Michael Febvre, Ph.D., Application Manager, Bruker EMEA (April 21, 2021)