SAW Grade Lithium Niobate Wafers
Lithium Niobate (LN) is a ferroelectric material with excellent electro-optic, nonlinear, and piezoelectric properties. Lithium niobate crystals are important materials for optical waveguides, mobile phones, piezoelectric sensors, optical modulators and various other linear and non-linear optical applications.
Lithium Niobate (LiNbO3) is a useful optoelectronic material. The material not only has unique piezoelectric, optical and photoelastic properties, but also has good mechanical and chemical stability. Its combination of excellent electro-optic, acoustooptic and nonlinear optical properties makes it an attractive material in integrated optics.
CQT provides up to 6″ diameter, single crystal Optical grade LN material with reduced impurity levels. Other specifications can be provided are doped wafers: Er:LN, MgO:LN and Fe:LN.
The most used SAW orientations are YZ-cut and 128°Y-cut, best fit for television transmission and reception signal processing. The 128°Y-cut with X propagation is said to have the lowest spurious signal level.
Lithium Niobate Wafers is a ferroelectric material with excellent electro-optic, nonlinear, and piezoelectric properties. Lithium niobate crystals are important materials for optical waveguides, mobile phones, piezoelectric sensors, optical modulators and various other linear and non-linear optical applications.
The largest use of Lithium Niobate (LN) is in SAW devices used in telecommunication devices. When voice communication and data communication are performed, SAW devices such as SAW filters and SAW duplexers are mounted in communication devices as filters for preventing noise and interference. Lithium Niobate (LN) crystals are also used in optical applications.
Product Parameters
Material
LiNbO3 wafers (White or Black)
Curie Temp
1142±2.0℃
Cutting Angle
X/Y/Z/Y36/Y41/Y64/Y128/etc
Diameter/size
3”/4”/6″LN wafer & 8″under R/D
Tol(±)
<0.20 mm
Thickness
0.18 ~ 0.5mm or more
Primary Flat
22mm /32mm /42.5mm /57.5mm
LTV (5mmx5mm)
<1µm
TTV
<3µm
Bow
-30<bow<30
Warp
<40µm
PLTV(<0.5um)
≥95%(5mm*5mm)
Orientation Flat
All available
Surface Type
Single Side Polished /Double Sides Polished
Polished side Ra
<0.5nm
Back Side Criteria
General is 0.2-0.5µm or as customized
