Optical Profilometry Measurement and Imaging Services
Laser Confocal, Patterned Light, White Light Interferometry
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.
|Technique||Laser Confocal Microscopy||wide area 3d / Patterned Light measurement||White Light Interferometry|
|Tool Name||Keyence: VK-X1100||Keyence: VR-3200||Zygo: ZeGage Plus|
|Resolution||z: 3 nm x, y: 120 nm||z: 1-5 µm x, y: 1-5 µm||z: 1 nm x, y: 250 nm|
|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|
|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|
|Measurement Area||µm to mm||mm to cm||µm to mm|
|Maximum stitch area||~50x50mm||~20cm||~1x1cm|
|Limitations||Steep walls and features||Steep walls and features Highly reflective surfaces||
|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|
|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.