UniversityWafer supplies high-quality monitor quartz crystals for thin film deposition control, quartz crystal microbalance (QCM) systems, evaporation, sputtering, optical coating, and semiconductor processing. Available with gold, silver, alloy, or blank electrodes in multiple frequencies and diameters, our quartz monitor crystals provide accurate film thickness monitoring and long-term stability for research and production applications.
Researchers frequently request monitor quartz crystals for thin film deposition control, quartz crystal microbalance (QCM) systems, evaporation, sputtering, and optical coating applications.
Research Inquiry:
"Do you have monitor quartz crystals for thin film deposition control?"
Yes. UniversityWafer supplies high-quality monitor quartz crystals with gold, silver, alloy, and blank electrode options for a wide variety of vacuum deposition systems.
| Frequency | Contour | Diameter | Electrode |
|---|---|---|---|
| 6 MHz | 3 Diopter Plano-Convex | 13.97 mm | Alloy |
| 6 MHz | 3 Diopter Plano-Convex | 13.97 mm | Gold |
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Selecting the correct monitor quartz crystal depends on your deposition process, coating material, operating temperature, and deposition rate.
To protect delicate crystal surfaces during shipping and storage, monitor quartz crystals are available in several cleanroom packaging options:
Quartz monitor crystals are used in thin film deposition systems to measure and control coating thickness during evaporation, sputtering, optical coating, and semiconductor processing. Their stable frequency response makes them ideal for quartz crystal microbalance (QCM) monitoring and film thickness control.
The plano-convex crystal design helps suppress unwanted vibration modes for improved accuracy. AT-cut quartz crystals provide stable performance across a wide operating temperature range, while high-quality electrode adhesion improves reliability and service life.
Quartz monitor crystals are manufactured from high-Q quartz material using controlled cutting, lapping, contouring, cleaning, and electrode plating steps. Each process step is designed to support accurate frequency response, low resistance, and reliable performance in vacuum deposition systems.
Gold and silver electrode coatings are commonly used to extend electrode life and improve performance in demanding thin film processes. Gold crystals are widely used for general-purpose deposition monitoring, while silver and alloy crystals may be preferred for higher heat loads, optical coatings, or dielectric materials.
| Crystal Type | Common Frequency | Diameter | Best Used For |
|---|---|---|---|
| Chrome/Gold | 5 MHz or 6 MHz | 12.45 mm or 13.97 mm | General thin film deposition, evaporation, and QCM monitoring |
| Aluminum/Silver | 6 MHz | 13.97 mm | Processes requiring silver electrode performance and stable activity |
| Chrome/Silver | 5 MHz or 6 MHz | 13.97 mm | Sputtering, higher heat loads, and selected oxide deposition processes |
| Alloy | 6 MHz | 13.97 mm | Optical coating and dielectric materials such as SiO, SiO2, MgF2, and TiO2 |
| Blank Quartz | 5 MHz or 6 MHz | Custom options | Custom electrode designs and specialized research applications |
| Specification | Typical Value |
|---|---|
| Frequency Options | 5.000 MHz and 6.000 MHz |
| Nominal Frequency | Common options include 4.960 MHz, 4.995 MHz, 5.983 MHz, and 6.060 MHz |
| Adjustment Tolerance | ±7 kHz or ±10 kHz at 25°C, depending on crystal type |
| Crystal Cut | AT, IT, IT/SC, or custom options |
| Oscillation Mode | Fundamental mode |
| Resonance Resistance | <15 Ω typical; selected blank quartz options may be 20 Ω |
| Shunt Capacitance | <7 pF |
| Operating Temperature | 0°C to +70°C |
| Storage Temperature | -40°C to +105°C |
| Diameter Options | 12.45 mm and 13.97 mm |
| Electrode Options | Chrome/Gold, Aluminum/Silver, Chrome/Silver, alloy, or blank |
Researchers and process engineers use monitor quartz crystals to control film thickness during metal deposition, dielectric coating, optical coating, semiconductor processing, and vacuum evaporation. UniversityWafer can quote gold, silver, alloy, and blank quartz monitor crystals based on your frequency, diameter, electrode, and packaging requirements.
Need help selecting the right quartz monitor crystal? Include your required frequency, crystal diameter, electrode coating, sensor head compatibility, deposition material, and quantity when requesting a quote.