LiNbO3

LiNbO3
Product Detail


Lithium Niobate is a compound of niobium, lithium and oxygen. It is a kind of negative crystal with high spontaneous polarization (0.70C /m2 at room temperature) and the ferroelectric with the highest Curie temperature (1210 ℃) found so far.


Lithium Niobate Wafers (White or Black)

MaterialOptical GradeSAW GradeOptical grade SLN CLN
Curie Temp1142±2.0℃

1142±0.7℃

Cutting AngleX/Y/Z etcX/Y/Z/Y36/Y41/Y64/Y128/etcX/Y/Z etc
Diameter/size2”/3”/4”3”/4”/6"LN wafer & 8"under R/D

2”/3”/4”   ±0.03mm

Tol(±)<0.20 mm

<0.20 mm   ±0.005mm

Thickness0.18 ~ 0.5mm or more
Primary Flat
16mm/22mm /32mm /42.5mm /57.5mm
TTV
<3µm
Bow-30<bow<30
Warp<40µm
Orientation Flat
All available
Surface Type
Single Side Polished(SSP) /Double Sides Polished(DSP)
Polished side Ra
<0.5nm
Back Side Criteria
General is 0.2-0.5µm or as customized
S/D40/20 or 20/10
Edge CriteriaR=0.2mm or Bullnose
R=0.2mm C-type or Bullnose
Optical doped
Fe/Zn/MgO etc for optical grade LN< wafers

Mg/Fe/Zn/MgO etc for optical grade   LN&LT wafers per requested

Refractive index

No=2.2878/Ne=2.2033 @632nm wavelengthgeneral:5.9x10-11<s<2.0*10-10 at 25℃No=2.2878/Ne=2.2033 @632nm wavelength/prism   coupler method.



Wafer Surface Criteria

ContaminationNone
Particles ¢>0.3 µm
<= 30
Scratch , Chipping
None
DefectNo edge cracks, scratches, saw marks, stains




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