OST Photonics offers a variety of sizes and thicknesses of SAW grade Lithium Niobate (LiNbO3) wafers, with wafer diameters ranging from 3 inches to 8 inches, the thickness can be customized according to your requirements (generally above 0.18 mm). The orientations can be X/Y/Z/Y36/Y41/Y64/Y128 etc. SAW grade pyroelectric free black lithium niobate wafers(LiNbO3 wafers) are also available upon request.
Surfaced acoustic devices
Q-switching devices
High-performance gyroscope
Accelerators and accelerometer sensors
MEMS devices
Stable mechanical properties
Good machinability
Heat and corrosion resistance
Low cost
Easy to grow into large crystals
Diameter: 3”, 4”, 6”, 8”
Orientations: X, Y, Z, Y36, Y41, Y64, Y128 etc.
Thickness: 0.25mm, 0.35 mm, 0.5 mm, 1.0 mm etc.
Available items: crystal wafers, black reduced wafers, boules, blanks and customized optics
Material | LiNbO3 single crystal | |
Curie Temp | 1142±2.0℃ | |
Reduction | Standard Black - 0.9E+11 ~ 9.0E+11 Super Black - 1.0E+10 ~ 9.0E+10 | |
Cutting Angle | X/Y/Z/Y36/Y41/Y64/Y128 etc | |
Orientation Tolerance (±) | ≤15′ | |
Diameter | 3”/4”/6”/8” | |
Diameter Tolerance (±) | ≤0.20 mm | |
Thickness | 0.18 ~ 0.5mm or more | |
Thickness Tolerance (±) | ≤0.025 mm | |
Primary Flat Length | 22mm/32mm/42.5mm/57.5mm | |
LTV (5mmx5mm) | <1.5 µm | |
TTV | <1~5 µm | |
BOW | ± (25~40 um) | |
Warp | <= 35 µm | |
PLTV(<0.5um) | ≥98%(5mm*5mm) with 2mm edge excluded | |
Orientation Flat | According to our standards or your requests | |
Surface Type | Single side polished(SSP)/double sides polished(DSP)/double sides lapped(DSL) | |
Polished Side Ra | <0.5nm | |
Lapped Side Ra | General is 0.2-0.5 um or as customized | |
Edge Criteria | Compliant with SEMI M1.2 Standard/refer to IEC62276 | |
Wafer Surface Criteria | Transmissivity | General:5.9x10^-11<s<2.0*10^-10 at 25℃ |
Contamination | None | |
Particles φ>0.3 um | <= 30 | |
Scratch , Chipping | None | |
Defect | No edge cracks, scratches, saw marks, stains | |
Packaging | Qty/Wafer box | 25pcs per box |
Material | Grade | Diameter | Growth direction |
LiNbO3 | SAW | 3”/4”/6”/8” | X/Y/Z/Y41/Y64/Y128/Y36/Y etc |
Growth method | Czochralski method |
Crystal structure | M3 |
Lattice Constant | a=b=5.148 Å c=13.863 Å |
Melting point (℃) | 1250 |
Density(g/cm3) | 4.64 |
Hardness | 5 (Mohs) |
Refractive index | no=2.286 ne=2.203 at 632.8nm |
Nonlinear coefficient | d33=34.45, d31=d15=5.95, d22=13.07 (pmv-1) |
Electro-optical coefficient | γ13=8.6, γ22=3.4, γ33=30.8, γ51=28.0, γ22=6.00 (pmv-1) |
Optical transmittance | 370 ~ 5000nm and >68% at 632.8nm |
Thermal expansion | a11=15.4x10^-6/K, a33=7.5x10^-6/K |
