Czochralski Grown Lithium Tantalate Wafer 3-4 Inch Diameter with 400-4500nm Transmission Range for Optical and SAW Applications
Price:
Negotiable
MOQ:
5 pcs
Delivery Time:
1-4 weeks
Brand:
BonTek
Product Description
Czochralski Grown Lithium Tantalate Wafers
High-quality Lithium Tantalate (LiTaO3) wafers manufactured using the Czochralski pulling method, available in both Optical and SAW (Surface Acoustic Wave) grades for various technical applications.
Product Overview
Lithium Tantalate (LiTaO3) crystallizes in the pseudo-ilmenite 3m structure with numerous technical applications leveraging its large electro-optic coefficient. These high-quality single crystals exhibit anisotropic optical properties with surprisingly small refractive index anisotropy in the visible region, derived from the cubic perovskite structure.
Wafer Specifications
| Product | Lithium Tantalate (LT) Wafer |
|---|---|
| Diameter | 3inch (76.2mm) | 4inch (100mm) |
| S/D | 20/10 | 20/10 |
| TTV | <3μm | <3μm |
| PLTV | >95% | >95% |
| Warp | <20μm | <40μm |
| BOW | <20μm | <30μm |
| Ra | <0.5nm | <0.5nm |
| Reduction | Standard White | Black Reduced |
| Dope | Fe doped Yellow Black |
Material Properties
| 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 |
| Dielectric Constants | ε11/ε0:51.7, ε33/ε0:44.5 |
| Piezoelectric Strain Constants | d22:2.4(×10⁻¹¹C/N), d33:0.8(×10⁻¹¹C/N) |
| Transmission range | 400-4500nm |
| Electro-optical coefficients | r33=30.4pm/V |
| Refractive index at 632.8nm | no=2.176, ne=2.180 |
Frequently Asked Questions
What are the products you mainly work on?
We are piezoelectric wafer specialists with over 30 years of experience, being the first to work with Single Crystal Quartz in China. We specialize in LiNbO3, LiTaO3, Quartz glass, LGS, CTGS materials, with particular expertise in quartz blanks for AT, SC and IT cuts with superior angle precision.
Can you accept product customization?
Yes, we offer complete customization and can fabricate according to your specifications. Our experienced team can provide technical recommendations if needed, and we maintain standard wafer inventory for immediate delivery.
Can you deliver the goods via our courier agent?
We can ship using your preferred courier service (DHL, FedEx, UPS) via your account, with optimized packaging to minimize shipping costs. We also offer freight management with our discounted international courier partnerships.
How can you guarantee we get what we want safely?
We use specialized fragile packaging with buffer sponge protection and work with reliable courier services. Please follow our acceptance check procedure upon receipt, and we provide replacement or refund for any transit damage when proper documentation is provided.
Acceptance Check Procedure
- Handle products carefully upon receipt and inspect outer carton condition
- Photograph packaging before opening to document initial condition
- Open vacuum packages only in clean room environments during application
- If damage is found, photograph/video immediately without removing from packaging
- Contact us immediately with documentation for resolution
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Hangzhou Freqcontrol Electronic Technology Ltd.
Location
Room 1106, CIBC, No.198 Wuxing Rd, Hangzhou, P.R.China
Contact Person
Xu