Steps and etched features
Measure height differences between suitable reference regions, including exposed film steps and etched recesses. Agree the reference planes and the areas used for each result.
Quality, Inspection & Delivery
3D Optical Profiler
Turn surface features into height and profile data.
For suitable patterned or polished parts, we examine the selected step, recess or surface region without stylus contact. A height map and cross-section profiles show where the feature lies and how its height changes.
What this measurement resolves
Three-dimensional topography
Review peaks, pits, grooves and transitions as a height map. Use cross-section profiles to inspect a selected feature and connect it to its location on the part.
Surface texture
Evaluate agreed areal or profile parameters on suitable samples. Define the scan area, filtering and processing before comparing results between parts or batches.
Results you can review
- 3D height map
- Selected cross-section profiles
- Step height or agreed texture parameters
Define before measurement
- Material, reflectivity and surface condition
- Scan area, step geometry and reference regions
- Required parameter, filtering and acceptance limit
Connect the reported values with the part or witness piece, measurement positions and drawing revision. Include the required records in the order scope. Review delivery records
Measurement notes
Transparent layers, steep walls, reflectivity changes and missing optical data can affect the result. Film thickness requires a suitable measurable step or a validated model; a 3D image alone does not establish thickness. Resolution is not the same as measurement accuracy.
A common question
How is this different from a stylus profilometer?
An optical profiler obtains non-contact height data over a surface area. A stylus profiler measures along a contact scan path. Material, geometry and the required result determine which method is suitable.
Complementary checks
Laser Interferometer
Check overall surface figure when the requirement extends beyond a local scan.
Precision Measuring Microscope
Connect height features with pattern dimensions and visible defects.
Discuss inspection & delivery
Share the critical acceptance items, required records, quantity and delivery needs. Use your existing drawing for the dimensions already defined.