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Quartz Crystal Piezoelectric Wafer Precision Substrates For Electrical Optical And Timing

Hangzhou Freqcontrol Electronic Technology Ltd.

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Quartz Crystal Piezoelectric Wafer Precision Substrates For Electrical Optical And Timing

Country/Region china
City & Province hangzhou shanghai
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Product Details

Quartz Crystal Piezoelectric Wafer Precision Substrates for Electrical Optical and Timing Applications

 

 

Quartz crystal wafers, also known as quartz substrates or quartz plates, are widely used in various electronic and optical applications. These synthetic quartz exhibits exceptional properties such as high purity, excellent electrical characteristics, and remarkable mechanical stability.

 

Quartz Crystal Properties

Quartz crystal wafers is with outstanding piezoelectric properties. Quartz can generate an electric charge when subjected to mechanical stress or vibrations, and vice versa. This property makes quartz crystal wafers highly desirable for applications involving precise timing, frequency control, and sensing. They serve as the foundation for quartz crystal oscillators and resonators used in electronic devices, such as watches, smartphones, computers, and communication systems.

Quartz crystal wafers have exceptional dimensional stability. The low coefficient of thermal expansion, meaning their dimensions remain relatively constant across a wide temperature range. This property makes them highly suitable for applications requiring stability and accuracy

Quartz crystal wafers have excellent optical transparency. They exhibit high transmission of light across a broad range of wavelengths, from ultraviolet (UV) to infrared (IR). This optical clarity makes them suitable for use in optical windows, lenses, prisms, and other components used in lasers, spectroscopy, microscopy, and other optical systems.

 

 

 

Quartz Crystal Details

PropertyDescription
Chemical FormulaSiO2
Crystal SystemHexagonal
DensityTypically 2.65 g/cm3
Hardness7 on the Mohs scale
TransparencyExcellent transparency from ultraviolet (UV) to infrared (IR)
Refractive IndexTypically around 1.544 (at 589 nm)
Thermal Conductivity1.4 W/(m·K)
Coefficient of Expansion5.5 x 10^-7 /°C (parallel to C-axis)
Melting PointApproximately 1,710°C
Electrical PropertiesPiezoelectricity, low electrical conductivity, high dielectric constant
ApplicationsQuartz crystal oscillators, resonators, sensors, optics, timing devices, scientific instruments, telecommunications

 

Crystal

Lithium NiobateLithium TantalateQuartz Crystal

Diameter

3’’, 4’’, 6’’, 8’’3’’, 4’’, 6’’3’’, 4’’, 5’’, 6’’, 8’’

Orientation

X / Y /

Y41 / Y64/Y128

X / X112 / YZ

Y28 / Y36 / Y42

X / Y / Z

AT / ST

Surface Finish

Single / Double sides polish (SSP/DSP)

Thickness

0.08mm / 0.25mm / 0.35mm / 0.50mm / 1.00mm / 2.00mm

LTV

< 1.5um

PLTV

>98% (5mm*5mm)

TTV

< 5um

Bow

-25um < bow < +25um

Warp

< 35um

Curie Temperature

1142℃ ± 2℃605℃ ± 2℃573℃

Edge

CompI’t with SEMI M1.2 @ with GC#1000

Flat

22±2mm, 32.5±2mm, 47.5±2mm, 57.5±2mm, Notch

As per request

Doping

Er, MgOFewith or without seed

Front Side

Roughness Ra< 1nm

Back Criteria

Roughness Ra: 0.5--1.0um GC#1000

Contamination

Particles @ >0.3 micron

Appearance

No Cracks, saw marks, stains

Single Domian

Completed Polarization / ReducedNo Stress

 

 

 

 

 

FAQs:

 

  1. Q: What are the products you mainly work on?

A: We look at ourselves as the piezo wafer specialist. We are the very first to work with Single Crystal Quartz in China about 30 years ago. Then gradually we step in the field of LiNbO3, LiTaO3, Quartz glass, LGS, CTGS etc. Especially, if you are looking for a piezo quartz supplier, we are the ultimate choice! We export millions of quartz blanks each year because we master the AT, SC and IT cuts with superior angle precision.

 

  1. Q: Can you accept product customization?

A: Yes, of course. We can fabricate as per your request. In addition, we are so experienced with piezo wafers that we can provide you relevant suggestions if you are not 100% sure about your choice. Besides, we do have some standard wafers in stock, please check with us.

 

  1. Q: Can you deliver the goods via our courier agent?

A: Yes, we would suggest you go with the courier agent you are most familiar with (DHL, FedEX, UPS etc.). We can ship via your account. And, of course, we will pack the products safely in acceptable size to help you save the shipping cost. If you need us to take care of the freight, it’s also not a problem. We also have good discount with the international courier companies.

 

  1. Q: How can you guarantee we get what we want safely?

A: The wafer products are fragile and sometimes expensive. The last thing, as the manufacturer, we want to see is the products we make were damaged during courier. As a result, we will pack the wafers adequately and put them in a proper carton filled with buffer sponge. However, accidents are inevitable sometimes. So, please follow the “Acceptance check” steps shown in the drawings below. If the unwanted happened, we will either give the replenishment or refund if you follow the checking steps.

 

  1. Q: Can we visit your factory?

A: Sure. Factory inspection is important for large quantity purchase and long-term cooperation. Face to face discussion is what we mostly confident with. During the past years, big names around the world have witnessed our progress in factory build-up. These days, due to the Covid-19 pandemic, we also had the experience of videoconferencing with global buyers.

 

 

Acceptance Check

  • The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
  • After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
  • Please open the vacuum package in a clean room when the products are to be applied.
  • If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.

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