Witness Samples

See it to believe it

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.

 

We have the following witness pieces in stock, ready to ship:

Round 1″ Silicon Witness Samples
Round 1″ Germanium Witness Samples

 

Stocked Witness Sample Specifications:

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.

 

More Applications

Optics

Optics

Mirrors

Mirrors

Semiconductor Support

Semiconductor Support

Thin Film Materials

Thin Film Materials

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