Optical Profilometry

Optical Profilometry Measurement and Imaging Services

Laser Confocal, Patterned Light, White Light Interferometry, Chromatic Dispersion Height Measurement

In the area of optical profilometry, Covalent Metrology offers Laser Confocal Microscopy, Patterned Light/Wide Area 3D Measurements, and White Light Interferometry. These techniques are valuable for assessing surface topography and other characteristics of a variety of advanced materials and nanotech devices.

Below, you’ll find more information regarding our optical profiling services.

 

Feel free to call us (408-498-4611) or email us, so we can match the right instrument for the data you are seeking with your sample. 

Technique Laser Confocal Microscopy wide area 3d / Patterned Light measurement White Light Interferometry Chromatic Dispersion Height Measurement
Tool Name Keyence: VK-X1100 Keyence: VR-3200 Zygo: ZeGage Plus FRT MicroProf 200
Tool Image laser confocal microscopy wide area measurement white light interferometry FRT Chromatic
Resolution (Best Possible) z: 3 nm x, y: 120 nm z: 1-5 µm x, y: 1-5 µm z: 1 nm x, y: 250 nm z: 3 nm x, y: 1 µm
Best uses High vertical accuracy; High lateral resolution Measuring large areas quickly (distances, flatness, step height): cm scale Best vertical resolution for the surface quality of polished surfaces High quality vertical resolution for surface topography, particularly over large area mapping
Materials that can be measured Opaque, translucent, transparent Matte to highly reflective Opaque, translucent Matte to moderately-reflective But transparent & highly-reflective requires matte coating Opaque, translucent, transparent Matte to highly reflective Opaque, translucent, transparent Matte to highly reflective
Measurement Area µm to mm mm to cm µm to mm µm to cm
Maximum stitch area ~50x50mm ~20cm ~1x1cm ~200mm x 200mm
Limitations Steep walls and features Steep walls and features
Highly reflective surfaces
Steep walls and features
Opaque film thickness
  • Steep walls and features
  • Multimaterial Samples
  • Multimaterial Samples
Industries and Parts Automotive, Biotech and nano-devices, Optical devices, Metal Materials processing, Semiconductor/Electronics, Small Parts Ceramics Automotive, Biotech and nano-devices, Metal Electrical/Electronics Tooling, PCB Connectors, BGA Small Parts, Surfaces Plastics Automotive, Biotech and nano-devices, Optical devices and lenses, Metal Electrical/Electronics Tooling, PCB Connectors BGA Small Parts Automotive, Biotech, and nano-devices, Optical devices and lenses, Metal Electrical/Electronics Tooling, PCB Connectors BGA Small Parts, Wafers
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Mid-Range Optical Profilometry: An Overview

Profilometry for surface characterization and dimensioning is a key area of expertise for Covalent Metrology and is proving invaluable to customers across a wide range of applications. The purpose of this paper is to discuss the technology behind each of the three optical profilometry techniques Covalent Metrology offers and to discuss the relative advantages of each of them.