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|
|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
|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|
|Specifications||View Specifications||View Specifications||View Specifications||View Specifications|
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.