SAW Grade LiTaO3(LT) Wafer

Lithium Tantalate is one of the most versatile materials. LiTaO3 has numerous applications including electro-optical modulators, pyroelectric detectors, optical waveguide and SAW substrates and piezoelectric transducers due to unique electro-optical, pyroelectric, piezoelectric and acoustic properties, a wide transparency range, and a high optical damage threshold combined with good chemical and mechanical stability.

Specifications

Material

SAW Grade LiTaO3 crystal 

Curie Temp

603±2℃

Cutting Angle

X/X112Y/Y36/Y42/Y48 etc

Diameter/size

3”/4”/6″

Tol(±)

<0.20 mm

Thickness

0.18 ~ 0.5mm or more

Primary Flat

22mm /32mm /42.5mm

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

Edge Criteria

R=0.2mm or Bullnose

Wafer Surface Criteria

Transmissivity

general:5.9×10-11<s<2.0*10-10 at 25℃

Contamination,

None

Particles ¢>0.3 µ  m

<= 30

Scratch , Chipping

None

Defect

No edge cracks, scratches, saw marks, stains

Packaging

Qty/Wafer box

25pcs per box