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Free-Pyro Black LiTaO3 Wafer
Product Details:
| Place of Origin: | China |
| Brand Name: | BonTek |
| Certification: | ISO:9001, ISO:14001 |
| Model Number: | Lithium Tantalate (LiTaO3) |
Payment & Shipping Terms:
| Minimum Order Quantity: | 5 pcs |
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| Price: | Negotiable |
| Packaging Details: | Cassette/ Jar package, vaccum sealed |
| Delivery Time: | 1-4 weeks |
| Payment Terms: | T/T |
| Supply Ability: | 10000 pcs/Month |
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Detail Information |
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| Product: | LiTaO3 Wafer | Material: | Black Reduced LiTaO3 |
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| Property: | Pyroelectric Free | Bulk Resistivity: | 0.9E+11 ~ 9.0E+11 (Standard Black); 1.0E+10 ~ 9.0E+10 (Super Black) |
| Size: | Dia. 3'', 4'', 6'' OR Squard | Application: | Interdigital Transducer, SAW Devices |
| Surface: | DSP, SSP, Lapping | Ra Roughness: | <1nm |
| High Light: | LiTaO3 Wafer IDT Applications,Lithium Tantalate Wafer,Free-Pyro Black LiTaO3 Wafer |
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Product Description
Free-pyro Black LiTaO3 Wafer for Surface Acoustic Wave IDT Applications
Free-pyro black LiNbO3 and LiTaO3 wafers were prepared successfully by chemical reduction under a mixed atmosphere of CO2 and H2. Bulk conductivity and optical transmittance of the black LiNbO3 and black LiTaO3 wafers were measured. The results showed that the pyroelectric effect for the reduced wafers was almost eliminated and the transmittance decreased considerably. The reduction process did not change Curie temperatures or piezoelectric properties of LN and LT wafers, while neutralize electrical charges even if the electrical potential occurs instantaneously.
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Material |
3" 4" 6" Black LT wafer Saw grade |
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Orientation |
X112°/Y28°/Y36°/Y42°/YZ or Customized |
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Curie Temp |
605°C±3°C |
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Reduction |
Standard Black - Super Black - 1.0E+10 ~ 9.0E+10 |
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Surface finish |
single or double sides polish (DLP/SLP/ SSP/DSP all available) |
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Thickness |
0.10/0.25/0.35/0.50/1.00 + mm |
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TTV |
< 1~5µm |
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BOW |
± (25µm ~40um ) |
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Warp |
<= 35µm |
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LTV (5mmx5mm) |
<1.5 um |
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PLTV(<0.5um) |
≥98% (5mm*5mm) with 2mm edge excluded |
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Edge |
Compl't with SEMI M1.2@with GC800# .regular at C typed |
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Orientation flats |
available, per request |
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Polished side Ra |
Roughness Ra<=5A |
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Back Side Criteria |
Roughness Ra:0.5-1.0µm GC#1000 |
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Edge Rounding |
Compliant with SEMI M1.2 Standard/refer to IEC62276 |
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Cracks, saw marks, stains |
None |
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Crystal Structure |
Trigonal, Space group R3c, Point group 3m |
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Cell Parameters |
a=5.154Å, c=13.781Å |
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Melting Point |
1650℃ |
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Curie Temperature |
607℃ |
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Mohs Hardness |
5.5 |
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Density |
7.46g/cm3 |
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Dielectric Constants |
ε11/ε0:51.7 |
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ε33/ε0:44.5 |
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Elastic Stiffness Coefficients |
CE11:2.33(×1011N/m2) |
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CE33:2.77(×1011N/m2) |
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Piezoelectric Strain Constants |
d22:2.4(×10-11C/N) |
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d33:0.8(×10-11C/N) |
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Transmission range |
400-4500nm |
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Electro-optical coefficients |
r33=30.4pm/V |
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Refractive index at 632.8nm |
no=2.176, ne=2.180 |
FAQs:
- Q: What are the products you mainly work on?
A: We look at ourselves as the piezo wafer specialist. We are the very first to work with Single Crystal Quartz in China about 30 years ago. Then gradually we step in the field of LiNbO3, LiTaO3, Quartz glass, LGS, CTGS etc. Especially, if you are looking for a piezo quartz supplier, we are the ultimate choice! We export millions of quartz blanks each year because we master the AT, SC and IT cuts with superior angle precision.
- Q: Can you accept product customization?
A: Yes, of course. We can fabricate as per your request. In addition, we are so experienced with piezo wafers that we can provide you relevant suggestions if you are not 100% sure about your choice. Besides, we do have some standard wafers in stock, please check with us.
- Q: Can you deliver the goods via our courier agent?
A: Yes, we would suggest you go with the courier agent you are most familiar with (DHL, FedEX, UPS etc.). We can ship via your account. And, of course, we will pack the products safely in acceptable size to help you save the shipping cost. If you need us to take care of the freight, it’s also not a problem. We also have good discount with the international courier companies.
- Q: How can you guarantee we get what we want safely?
A: The wafer products are fragile and sometimes expensive. The last thing, as the manufacturer, we want to see is the products we make were damaged during courier. As a result, we will pack the wafers adequately and put them in a proper carton filled with buffer sponge. However, accidents are inevitable sometimes. So, please follow the “Acceptance check” steps shown in the drawings below. If the unwanted happened, we will either give the replenishment or refund if you follow the checking steps.
- Q: Can we visit your factory?
A: Sure. Factory inspection is important for large quantity purchase and long-term cooperation. Face to face discussion is what we mostly confident with. During the past years, big names around the world have witnessed our progress in factory build-up. These days, due to the Covid-19 pandemic, we also had the experience of videoconferencing with global buyers.
Acceptance Check
- The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
- After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
- Please open the vacuum package in a clean room when the products are to be applied.
- If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.