Precision Pyroelectricity: LiTaO3's Impact in Motion Sensors
Witness the impact of LiTaO3's pyroelectric effect in the realm of motion sensors, where precision matters most. Our ultra-thin LiTaO3 wafers, at a wafer-level thickness of 20um and diameters reaching 4 inches, play a transformative role in enhancing the accuracy of motion-sensing applications. The inherent pyroelectric effect responds dynamically to temperature changes, allowing for meticulous detection in security systems and automation technologies. LiTaO3's thinness is not just a feature; it's the key to unlocking unparalleled precision in motion sensor applications.
Material | Ltihium Tantalate (LT) Wafer | ||
Diameter | 3inch | 4inch | 6inch |
76.2mm | 100mm | 150mm | |
S/D | 20/10 | 20/10 | 20/10 |
TTV | <3um | <3um | <5um |
PLTV | >95% | >95% | >95% |
Warp | <20um | <40um | <50um |
BOW | <20um | <30um | <30um |
Roughness | Ra<0.5nm | Ra<0.5nm | Ra<0.5nm |
Reduction | Standard White | Standard White | Standard White |
Doping | Fe doped | Fe doped | Fe doped |
Properties | LiTaO3 (LT) |
Crystal Structure | Trigonal,a = 5.154, c = 13.784Å |
Melting Point | 1650℃ |
Curie Temperature | 607℃ |
Transmission Range | 400 – 5000 nm |
Absorption edge | 270nm |
Absorption loss | < 0.15 %/cm @ 1064 nm |
Refractive Index | no=2.176,ne=2.180(at 0.633 µm) |
no=2.131,ne=2.134(at 1.2 µm) | |
Density | 7.45g/cm3 |
Thermal Conductivity | 8.78x 10-7 m2/sec |
Optical homogeneity | ~10-5 |
Hardness (Mohs) | 5 |
Elastic Coefficient | CE11 2.33(X 1011 N/m2) |
CE33 2.77(X 1011 N/m2) | |
Dielectric Constant | ε11/ε0 52.7 |
ε33/ε0 44.5 | |
Solubility in Water | insoluble in water |
NLO Coefficients | d33 = 13.8 pm/V |
d22= 2.4 pm/V | |
d11= 0.85 pm/V | |
Electro-Optic Coefficients | r31 =8.4 pm/V, @633nm |
r22 =20 pm/V, @633nm | |
r33 =30.5 pm/V, @633nm | |
Damage Threshold | 2 MW/cm2@532nm |
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