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UniversityWafer, Inc. and our partners research into quartz crystal characteristics results in ongoing improvements to offer
the highest reliability in your process. We recommend gold crystals for most applications. They have low contact resistance, high chemical stability. The gold electrodes crystals are best suited for low stress material coating monitoring, Such as gold, silver, copper film thickness control. Silver crystals will provide superior performance in processes with high heat loads, such as sputtering. They may also improve the deposition of oxides. Alloy crystals are recommended for optical coating with dielectric materials and for semiconductor processes with high-stress materials, Such as SiO, SiO2, MgF2, TiO2 and so on.
Plano-convex configuration suppresses unwanted modes for greater accuracy. AT-cut crystal orientation enhances stability over a wide range of operating temperatures. Improving of adhesion underlayer from electrode-to-crystal assures the crystals’ reliability and long-life.
Gold or silver electrode coating for maximum electrode life. 100% testing of each crystal’s frequency and activity (Series resistance). Compatibility with all our sensor heads and most other manufactures instruments. Clean room processing to avoid particulate contamination.
Our quartz monitor crystals are 100% manufactured in house from raw material to final product.
We control every distinct production step in the manufacture of our
Quartz Monitor Crystals, from the supply of the high Q raw Quartz
to the super precise Wire Saws used to cut the primary wafers. Add to this a strictly controlled lapping and contouring process and you have the foundation for a truly superior Quartz Monitor Crystal. By using our six stage proprietary washing process and angstrom level accuracy electrode plating all in clean room conditions we manufacture a truly advanced quality Quartz Monitor Crystal.
|Oscillation Mode||Foundation Mode|
|Resonance Resistance||<15 Ω|
|Shunt Capcitance||<7 pF|
|Operating Temperature||0°C ~ +70°C|
|Storage Temperature||-40°C ~ +105°C|
|Electrode of Plane Side||Chrome (Cr) / Gold (Au)|
|Electrode of Convex Side||Chrome (Cr) / Gold (Au)|
|Oscillation Mode||Foundation Mode||Foundation Mode|
|Resonance Resistance||<15 Ω||<15 Ω|
|Shunt Capacitance||<7 pF||<7 pF|
|Operating Temp||0℃ ～ +70℃||0℃ ～ +70℃|
|Storage Temp||-40℃ ～ +105℃||-40℃ ～ +105℃|
|Electrode of Plane Side||Aluminum (Al) / Silver (Ag)||Chrome (Cr) / Silver (Ag)|
|Electrode of Convex Side||Aluminum (Al) / Silver (Ag)||Chrome (Cr) / Silver (Ag)|
|Crystal Cutting||Top grade Z bar|
|Oscillation Mode||AT & IT/SC||IT/SC||AT||AT||AT|
|Resonance Resistance||<15 Ω <15 Ω||20 Ω||20 Ω||20 Ω||20 Ω|
|Angle||Per Customer or design for Clients|
|Operate Temp||0℃ ～ +70℃|
|Storage Temp||40℃ ～ +105℃|
Yes, we have Monitor quartz crystals . I attached our general specification for your refer to this URL for quotation for Gold and Alloy.
|2020/1/17||U01||6M||3 diopter Plano-Convex||13.97mm||Alloy||$ /ea||$/ea||$ /ea|
|2020/1/17||U01||6M||3 diopter Plano-Convex||13.97mm||Gold||$ /ea||$ /ea||$ /ea|