UV Measurement & Process Control

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ReflectorsWhat should we monitor?• 60-80% of energy reaching the substrate is reflected• Optimize reflected energy, reflector focus and lamp positionthrough design and maintenance programs• Shape, type, material, coating of reflector matched to processElliptical ReflectorsParabolic Reflectors
Impact of System ChangesWhat should we monitor?Focused lampUV W/cm 2Non-Focused lampTime in secondsDistance Change-Same lampUV W/cm 2Dimensional CuringGloss ControlNON-FOCUSED290 mW/cm 21707 mJ/cm 2FOCUSED858 mW/cm 22096 mJ/cm 2Time in seconds
Page 3 and 4: Are we speaking the same (UV) langu
Page 5 and 6: Why do we measure?• Repeatability
Page 7 and 8: Who is measuring UV and what is the
Page 9 and 10: Where the UV goes-relative penetrat
Page 11 and 12: Electrical Power• Amp MeterWhat s
Page 13: What should we monitor?• Before:
Page 17 and 18: What should we monitor? UV Spectral
Page 19 and 20: With 600 hours of run time would yo
Page 21 and 22: What should we monitor?Do you have
Page 23 and 24: Radiant Energy Density as a Functio
Page 25 and 26: How do we measure?Absolute Instrume
Page 27 and 28: UV Bandwidths60504030CBAV201000 100
Page 29 and 30: UV Measurement and Process Control
Page 31 and 32: Process or Cure WindowNormal Operat
Page 33 and 34: Sample Job LogDateLine Speed DwellT
Page 35 and 36: UV Formulation SpecificationsOrigin
Page 37 and 38: Why Calibrate?• Balance the amoun
Page 39 and 40: Instrument Optics: Spatial Response
Page 41 and 42: Instrument ElectronicsThreshold•
Page 43 and 44: Instrument with Low Sampling Rate &
Page 45 and 46: What ‘dialect’ of UV Watts are

UV Measurement & Process Control

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