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Brand Name : ZG
Model Number : MS
Certification : CE
Place of Origin : CHINA
MOQ : 1 piece
Price : USD10/piece
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability : 10000 pieces per month
Delivery Time : 3 working days
Packaging Details : Strong wooden box for Global shipping
Application : surface acoustic wave ( SAW device ) , piezoelectric resonator , microwave filters , pressure sensor , and MEMS
Diameter : Ø 1" / Ø 2" / Ø 3" / Ø 4"/ Ø 6" / Ø 8"/ Ø 12"
Thickness : 0.4 mm / 0.5 mm / 0.7 mm / 1.1 mm
Grade : SAW grade and optical grade
Borofloat wafer
We provides Borofloat glass wafer in diameter range from 1" to 12 " . Borofloat glass have many unique characteristics such as Low Thermal Expansion Coefficient which is suitable for anodic bonding to silicon application , Good thermal shock resistance , High resistance to acid / alkali , and High transmission . These special features makes Borofloat glass wafer as a top choice for many industry applications . Borofloat glass wafer can be fabricated in round or square shape , with a SEMI standard flat or Notch , one side polished or two sides polished , 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. In addition , 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 various glass substrates in stock and can machine to your specification with high precision surface finish . Contact us for further information .
Chemical formula | SiO2 |
Mechanical Properties | |
Density | 2.23 g / cm3 |
Poisson's ratio | 0.14 ~ 0.17 |
Young's modulus | 62.75 Gpa |
Knoop Hardness | 480 |
Thermal Properties | |
Short-term operating temperature | 500 °C |
Long-term operating temperature | 450 °C |
Thermal conductivity ( 90 °C ) | 1.2 W / (m. K) |
Thermal expansion coefficient | 3.25 ×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 =1.472 |
Viscosity Properties | |
Working point | 1270 °C |
Softening point | 820 °C |
Annealing point | 560 °C |
Strain point | 518 °C |
Chemical Properties | |
Acid resistance | class 1 |
Alkali resistance | class 2 |
Hydrolytic resistance | class 1 |
Composition | |
SiO2 | 81% |
B2O3 | 13% |
Na2O / K2O | 4% |
Al2O3 | 2% |
Diameter | Ø 1" / Ø 2" / Ø 3" / Ø 4"/ Ø 6" / Ø 8"/ Ø 12" |
---|---|
Square size | 10 x 10 / 20 x 20 / 50 x 50 / 100 x 100 / 200 x 200 mm |
Thickness | 0.4 mm / 0.5 mm / 0.7 mm / 1.1 mm |
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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Thickness 0.4mm 0.5mm 0.7mm Technical Ceramic Parts Borofloat Wafer Images |