Wide Transparency Range LT Single Crystal LiTaO3 Wafers For SAW Devices
Wide Transparency Range LT Single-crystal LiTaO3 Wafers For SAW Devices
Introduction:
Lithium tantalate (LiTaO3) crystal is an excellent multifunctional material with high application value. LiTaO3 crystal has excellent characteristics of stable and high chemical properties, Curie point higher than 600℃, less depolarization phenomenon, low dielectric loss, and high detection rate. It has become the most suitable material for pyroelectric infrared detectors. Best choice.
The polished LT wafer is widely used in the manufacture of electronic communication devices such as resonators, filters, transducers, etc. It is especially used to manufacture high-frequency surface acoustic wave devices due to its good electromechanical coupling and temperature coefficient. Many high-end communication fields such as mobile phones, walkie-talkies, satellite communications, and aerospace.
Advantages:
- High optical damage threshold
- Wide transparency range
- Wide application
| Material | LiTaO3 wafers | |
| Curie Temp | 603±2℃ | |
| Cutting Angle | X/Y/Z/X112Y/Y36/Y42/Y48/etc | |
| Diameter/size | 2”/4”/6" LT wafer | |
| 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 | |
| Back Side Criteria | General is 0.2-0.5µm or as customized | |
| Edge Criteria | R=0.2mm or Bullnose | |
| Fe doped |
Fe doped for saw grade LN< wafers |
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