high quality single crystal quartz wafer including SAW grade and optical grade
We provides high quality single crystal quartz wafer including SAW grade and optical grade . We can offer various orientation options including X cut , Y cut , Z cut , AT cut and ST cut for your unique applications at reasonable price . Single crystal quartz wafer have many unique features such as piezoelectric property , good optical property and high optical transmittance , these special features makes single crystal quartz wafer ( synthetic quartz crystal ) suitable for surface acoustic wave ( SAW device ) , piezoelectric resonator , microwave filters , pressure sensor , and MEMS application . Single crystal quartz wafer can be fabricated in round or square shape , with a SEMI flat or without flat , one side polished or two sides polished , size from 1" to 4 " , thickness range from 0.4 , 0.5 , 0.7 , 1.1 to 3 mm , ultrasonic cleaning and cleanroom compatible wafer cassette package are also available. Additionally , we offer custom specifications designed to your unique needs including , dimension , SEMI. standard flats , surface roughness , edge profile , thickness , flatness , surface quality , cleanliness package method . We have single crystal quartz wafer in stock and can machine to your specification with high precision surface finish . Please contact us for further product information .
Single Crystal Quartz Wafer Properties
| Chemical formula |
SiO2 |
| Growth method |
Hydrothermal |
| Crystal structure |
Hexagonal |
| Lattice constant |
a=4.9 A , C=5.4 A |
| Q value |
1.8 x 10 6 min. |
| Inclusion |
IEC Grade II |
| Grade |
SAW grade , Optical grade |
| Mechanical Properties |
|
| Density |
2.67 g / cm3 |
| Poisson's ratio |
NA |
| Young's modulus |
97.2 Gpa / 76.5 Gpa |
| Moh's hardness |
7 |
| Thermal Properties |
|
| Melt point |
1620 °C |
| Specific heat |
0.18 cal / gm |
| Thermal conductivity |
0.0033 cal / cm / °C |
| Thermal expansion coefficient |
13.71 ×10 - 6 K-1 |
| Electrical Properties |
|
| Resistivity ( ohm-cm ) |
8@250 °C / 6.5@350 °C |
| Loss Tangent |
37 x 10-4 |
| Dielectric constant e |
4.6 |
| Optical Properties |
|
| Refractive index ( @ 589 nm ) |
Nd =1.544 |
Product Specification
| Diameter |
Ø 1" / Ø 2" / Ø 3" / Ø 4"/ Ø 6" |
| Square size |
10 x 10 / 20 x 20 / 50 x 50 / 100 x 100 mm |
| Thickness |
0.4 mm / 0.5 mm / 0.7 mm / 1.1 mm |
| Angle cut |
X cut / Y cut / YX cut / Z cut |
| |
AT-cut 36° / ST cut 42.75° |
| Surface |
one side polished / two sides polished |
| Flat |
SEMI.Std. flat or Notch |
| TTV |
<= 15 um |
| Roughness |
Ra <=10 A |
| Surface quality |
60 / 40 |
| Package |
Ampak cassette / jar |
Product Tags:
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0.7mm 1.1mm Single Crystal Quartz Wafer SAW Grade And Optical Grade Images
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