Single Crystal Quartz Wafer




Single Crystal Quartz




Single Crystal Quartz




Single Crystal Quartz






SINCE 2002

Research & Innovation


Semiconductor Wafer Inc. 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

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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

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