Lithium Tantalate (LiTaO3)

Lithium Tantalate (LiTaO3) is an artificial monocrystalline material widely used in optics, electronics, and acoustics. It is particularly notable for its excellent nonlinear optical and piezoelectric properties, making it a key material for various advanced technologies. While it has properties similar to Lithium Niobate (LiNbO₃), it exhibits superior thermal and mechanical stability, making it a suitable alternative material for applications requiring harsh environments or high precision.

We provide Lithium Tantalate (LiTaO3) monocrystalline products.
2 to 6 inches
3mm × 3mm to 20mm × 20mm
Others

Optical Grade LiTaO3 Substrate/Wafer

Material LiTaO3 wafers (White or Black)
Curie Temp 603 ± 2℃
Cutting Angle X/Y/Z etc
Diameter/Size 2”/3”/4” LT wafer
Tol (±) <0.20 mm
Thickness 0.18 ~ 0.5mm or more
Primary Flat 16 mm / 22 mm / 32 mm
TTV <3 µm
Warp <40 µm
Surface Type Single Side Polished /Double Sides Polished
Polished Side Ra <0.5 nm
Back Side Criteria General is 0.2-0.5µm or as customized
Edge Criteria R = 0.2mm or Bullnose
Optical Doped Zn/MgO etc
Wafer Surface Criteria Contamination None
Particles >0.3 µm <= 30
Scratch, Chipping None
Defect No edge cracks, scratches, saw marks, stains
Packaging Qty/Wafer box 25pcs per box

SAW Grade LiTaO3 Substrate/Wafer

Material LiTaO3 wafers (White or Black)
Curie Temp 603 ± 2℃
Cutting Angle X/Y/Z/X112Y/Y36/Y42/Y48/etc
Diameter/Size 3”/4”/6" LT Wafer
Tol (±) <0.20 mm
Thickness 0.18 ~ 0.5mm or more
Primary Flat 22 mm / 32 mm / 42.5 mm /57.5 mm
LTV (5 mm × 5 mm) <1 µm
TTV <3 µm
Bow -30 < bow < 30
Warp (<0.5 µm) <40 µm
PLTV (<0.5 µm) ≥95% (5 mm × 5 mm)
Orientation Flat All Available
Surface Type Single Side Polished / Double Sides Polished
Polished Side Ra <0.5 nm
Back Side Criteria General is 0.2-0.5 µm or as customized
Edge Criteria R = 0.2 mm or Bullnose
Wafer Surface Criteria Transmissivity general: 5.9 × 10-11 < s < 2.0 × 10-10 at 25℃
Contamination None
Particles >0.3 µm <= 30
Scratch, Chipping None
Defect No edge cracks, scratches, saw marks, stains
Packaging Qty/Wafer box 25pcs per box