Witness samples are critical to maintaining control of your thin film coating operation. Work with us to get the best quality, optimal traceability and flawless repeatability with each pieces. Custom witness samples are available in either flat or wedged configuration—with wedged parts available with any angle you require.
Round 1″ Silicon Witness Samples
Round 1″ Germanium Witness Samples
Monocrystalline Optical Grade Silicon or Polycrystalline Optical Grade Germanium
Diameter 1.000″ +/-0.005″
Thickness 0.040″ +/-0.002″
DSP to 60/40 and <5 Fringes/Inch
All witness samples are cleaned and packaged in an as-built Class 10,000 cleanroom environment.
*All specifications are dependent on part geometry.