Our abundance experience at growing and mass production for Optical grade Lithium Tantalate. We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking, all finished products are passed at Testing of curie Temp and QC inspection.

Our R&D is active at developing and researching from new material to finished products at all kinds of optical dopped wafers & electronic components.

Product Parameters

MaterialLiTaO3 wafers(White or Black)
Curie Temp603±2℃
Cutting AngleX/Y/Z etc
Diameter/size2”/3”/4” LT wafer
Tol(±)<0.20 mm
Thickness0.18 ~ 0.5mm or more
Primary Flat16mm/22mm /32mm
TTV  <3µm
Warp <40µm
Surface TypeSingle Side Polished /Double Sides Polished
Polished side Ra<0.5nm
Back Side CriteriaGeneral is 0.2-0.5µm or as customized
Edge CriteriaR=0.2mm or Bullnose
Optical dopedZn/MgO etc
Wafer Surface CriteriaContamination,None
Particles ¢>0.3 µ  m<= 30
Scratch , ChippingNone
DefectNo edge cracks, scratches, saw marks, stains
PackagingQty/Wafer box25pcs per box 

for Optical grade application 

1. Low pass filters of Digital Camera in high end models/ holographic components for DVD pick up

2. Optical communications; optical switches and modulators/ Gyro sensors

3. Laser wavelength converter, generating Blue and Green lasers/By using SHG techniques (Displays, medical, and environmental purposes)