Hangzhou Freqcontrol Electronic Technology Ltd.
| Payment Terms | T/T |
| Supply Ability | 10000 pcs/Month |
| Delivery Time | 1-4 weeks |
| Packaging Details | Cassette/ Jar package, vaccum sealed |
| Product | Lithium Tantalate Wafer |
| Crystal | Black Reduced LiTaO3 |
| Character | Pyroelectric Free |
| Resistivity | 0.9E+11 ~ 9.0E+11 (Standard Black); 1.0E+10 ~ 9.0E+10 (Super Black) |
| Size | 3'', 4'', 6'' or Square |
| Usage | Interdigital Transducer, SAW devices |
| Surface Type | DSP, SSP, Lapping |
| Ra Roughness | Ra<1nm |
| Brand Name | BonTek |
| Model Number | Lithium Tantalate (LiTaO3) |
| Certification | ISO:9001, ISO:14001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 10000 pcs/Month |
| Delivery Time | 1-4 weeks | Packaging Details | Cassette/ Jar package, vaccum sealed |
| Product | Lithium Tantalate Wafer | Crystal | Black Reduced LiTaO3 |
| Character | Pyroelectric Free | Resistivity | 0.9E+11 ~ 9.0E+11 (Standard Black); 1.0E+10 ~ 9.0E+10 (Super Black) |
| Size | 3'', 4'', 6'' or Square | Usage | Interdigital Transducer, SAW devices |
| Surface Type | DSP, SSP, Lapping | Ra Roughness | Ra<1nm |
| Brand Name | BonTek | Model Number | Lithium Tantalate (LiTaO3) |
| Certification | ISO:9001, ISO:14001 | Place of Origin | China |
| High Light | 3'' Lithium Tantalate Wafer ，4'' Free-pyro Black Wafer ，6'' Lithium Tantalate Wafer | ||
Free-pyro Black Lithium Tantalate 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.
| Material | 3" 4" 6" Black LT wafer Saw grade |
| Orientation | X112°/Y28°/Y36°/Y42°/YZ or Customized |
| Curie Temp | 605°C±3°C |
| Reduction | Standard Black - Super Black - 1.0E+10 ~ 9.0E+10 |
| Surface finish | single or double sides polish (DLP/SLP/ SSP/DSP all available) |
| Thickness | 0.10/0.25/0.35/0.50/1.00 + mm |
| TTV | < 1~5µm |
| BOW | ± (25µm ~40um ) |
| Warp | <= 35µm |
| LTV (5mmx5mm) | <1.5 um |
| PLTV(<0.5um) | ≥98% (5mm*5mm) with 2mm edge excluded |
| Edge | Compl't with SEMI M1.2@with GC800# .regular at C typed |
| Orientation flats | available, per request |
| Polished side Ra | Roughness Ra<=5A |
| Back Side Criteria | Roughness Ra:0.5-1.0µm GC#1000 |
| Edge Rounding | Compliant with SEMI M1.2 Standard/refer to IEC62276 |
| Cracks, saw marks, stains | None |
| Crystal Structure | Trigonal, Space group R3c, Point group 3m |
| Cell Parameters | a=5.154Å, c=13.781Å |
| Melting Point | 1650℃ |
| Curie Temperature | 607℃ |
| Mohs Hardness | 5.5 |
| Density | 7.46g/cm3 |
FAQs:
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.
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.
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.
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.
Acceptance Check
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
1999
Total Annual:
800M-1500M
Employee Number:
10~99
Ecer Certification：
Verified Supplier
Founded in 1999, Hangzhou Freqcontrol Electronic Technology Ltd. is a China leading manufacturer of piezoelectric crystal wafers, substrates, components and single crystal growth. We, known as the "CQT Group" in global market, headquartered in Hangzhou, China, empowered by its manufacturin... Founded in 1999, Hangzhou Freqcontrol Electronic Technology Ltd. is a China leading manufacturer of piezoelectric crystal wafers, substrates, components and single crystal growth. We, known as the "CQT Group" in global market, headquartered in Hangzhou, China, empowered by its manufacturin...
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