3-Inch Langasite Wafers for SAW BAW Piezoelectric Applications - 100mm Diameter, 0.50mm Thickness, High Temperature 1470°C
Price:
Negotiable
MOQ:
5 pcs
Delivery Time:
1-4 weeks
Brand:
BonTek
Product Description
Product Overview
3-inch polished langasite wafers engineered for high-performance SAW (Surface Acoustic Wave) and BAW (Bulk Acoustic Wave) piezoelectric applications. These premium substrates deliver exceptional acoustic properties and thermal stability for advanced telecommunications components.
Key Applications
Langasite wafers are specifically designed for surface acoustic wave applications, making them ideal for mobile telephony filters and other high-frequency electronic components where superior performance and reliability are critical.
Technical Specifications
Material Properties
| Property | Value |
|---|---|
| Crystal Structure | Trigonal system, group 33 a=8.1783 c=5.1014 |
| Growth Method | Czochralski |
| Hardness | 6.6 Moh's |
| Density | 5.754 g/cm³ |
| Melt Point | 1470°C |
| Thermal Expansion (x10⁻⁶/°C) | α₁₁: 5.10, α₃₃: 3.61 |
| Acoustic Velocity, SAW | 2400 m/sec |
| Frequency Constant, BAW | 1380 kHz/mm |
| Piezoelectric Coupling | K² (%) BAW: 2.21, SAW: 0.3 |
| Inclusions | N0 |
Wafer Dimensions & Tolerances
| Parameter | Value | Tolerance |
|---|---|---|
| Cut, A1 | 138.5° | ±0.1° |
| Cut, A2 | 26.7° | ±0.1° |
| Diameter D | 100mm | ±0.25mm |
| Thickness T | 0.50mm | ±0.03mm |
| Reference Flat F1 | 32.0mm | ±2.50mm |
| Secondary Flat F2 | 11.0mm | ±2.00mm |
Surface Specifications
| Surface Type | Finish |
|---|---|
| Front Surface Finish | Polished Ra < 0.7 nm |
| Back Surface Finish | Lapped, 0.4 μm < Ra < 0.6 μm |
| Flatness | < 10 μm |
Quality Assurance
All wafers undergo rigorous visual inspection to ensure they are free from scratches, cracks, contamination, dimples, pits, and orange peel defects. Edge chips are strictly controlled with radial depth < 0.5mm and peripheral chord length < 1.0mm.
Product Images
Frequently Asked Questions
What are the products you mainly work on?
We specialize in piezoelectric wafers and were the first to work with Single Crystal Quartz in China approximately 30 years ago. Our expertise extends to LiNbO₃, LiTaO₃, Quartz glass, LGS, CTGS and other materials. We export millions of quartz blanks annually with superior angle precision for AT, SC, and IT cuts.
Can you accept product customization?
Yes, we offer complete customization and can fabricate wafers 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, etc.) via your account. Our packaging is optimized to minimize shipping costs while ensuring product safety. We also offer freight services with discounted international courier rates.
How can you guarantee we get what we want safely?
We use specialized packaging with buffer sponge and fragile labeling. Please follow our acceptance check procedure: inspect outer carton condition, photograph packaging before opening, and only open vacuum packages in clean rooms. If damage occurs during shipping, document immediately and contact us for resolution.
Acceptance Check Procedure
- Handle products with care upon receipt
- Check outer carton condition and photograph before opening
- Open vacuum packages only in clean room environments
- Document any shipping damage immediately without removing products from packaging
- Contact us immediately for damaged product resolution
Similar Products
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