Applications

Functional Surfaces

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Bottom Flatness of Blind Holes

Inspecting blind hole bottoms for flatness and parallelism with respect to the top surface is difficult for high-aspect ratio holes (deep and narrow). The TopMap Pro.Lab can make these measurements for holes under 50 mm deep, and the TopMap Metro.Lab easily allows measurements in drill holes that are up to 70 mm deep.

Surface Measurement in Production Environments

Surface properties, such as roughness, are important parameters for quality assurance. High throughput quality control is easily realized using TopMap white-light interferometers. The measurement itself is quick and fully automated, as are the analysis, savings and transfer of the results to the process control software.

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Quality Control for Hard Disk Components

A manufacturer of various components for hard disk drives such as bearing sleeves, shafts and disk hubs, uses TopMap systems for quality control along with several other measurement techniques. The quality of fluid dynamic bearings (FDB) is of particular interest.

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Topography of Laser Chips

For reasons of quality control it is necessary to measure the complete topography of the laser chips. This can easily be done with the Polytec TopMap white light interferometer. Every data point has a x, y and z coordinate so very flexible data analysis can be done.

Flatness of Plastic Foils

The topography of transparent plastic foils is measured with the TMS-600 TopMap Pro.Lab system. The amplitude of the waves is of the order of some hundred nanometers. With this measurement it´s possible to control the production process of the plastic foils.

TopMap Application Notes

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