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Webinar Choosing_the_Right_QCM_System_for_Your_Application

Choosing the Right QCM System for Your Application

Sheldon Wayman & Chris Wagner
40 minutes

About the webinar

In this OnDemand webinar we discuss some common applications in the optical, OLED, and solar industry. We unpack a list of unique key features exclusively offered by INFICON that are tailored to your application

Improving accuracy and repeatability:

  • Multi-Layer compensation for high precision optical coatings
  • Temperature compensation to eliminate thermal shock effects from thermal source applications
  • ModeLock for low rates and thin precision coatings
  • Auto-Z for exotic materials including OLED and perovskite
  • Specialty crystals for OLED
More information on our market page

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Temperature Compensation for QCMs

Quartz crystal microbalance (QCM) technology has been used for decades to control deposition rate and thickness for the most complex processes seen in the ophthalmic, optical, display, and solar markets. INFICON has recently made a new advancement in QCM technology to address a problem seen across all of these industries related to QCM temperature effects. Thermal shock can cause QCM thickness errors which can decrease yield and increase manufacturing costs if temperature is not accounted for correctly.

Temperature impacts the frequency measurement and can create false mass readings. Thin film deposition controllers currently on the market have no good way of distinguishing frequency shifts related to mass from frequency shifts related to temperature, resulting in thickness errors and poor PID control. This can be detrimental to complex coating processes due to the low deposition rates and incredibly thin layers required. Thermal shocks can occur at any point in a deposition process and can cause unnecessary PID-loop corrections, triggering non-uniform deposition in respect to time. This means that the quality throughout the bulk of the material is inadequate. For very thin films, the thickness termination may not be at the real intended thickness because the process time window is small compared to the time allowed for a QCM to recover from a thermal shock event.

INFICON has patented a new temperature compensation technique for SC-cut crystals to remove the effects of temperature variation on the QCM without the need for additional hardware or custom and expensive sensors.

Please join us for the ‘Temperature Compensation for QCMs’ webinar, hosted by Sheldon Wayman, Product Engineer for INFICON Inc.

Multiple dates
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