Langasite Wafers 60mm Diameter Double Side Polish with Euler Angles 0° 138.5° 26.7° for Optical-Electro Applications
Price:
Negotiable
MOQ:
5 pcs
Delivery Time:
1-4 weeks
Brand:
BonTek
Product Description
Product Overview
Langasite (LGS) wafers with Euler angles (0°,138.5°,26.7°) are double-side polished optical-electro-optical crystals with excellent physical, chemical, and electro-optical properties. These wafers serve as high-performance Q-switch materials with adjustable half-wave voltage and superior optical damage thresholds.
Specifications
- Diameter: 10-60mm (customizable)
- Thickness: 0.25-0.5mm (customizable)
- Total Thickness Variation (TTV): < 10μm for 2" wafer
- First Reference Flat: 15.0mm
- Second Reference Flat: 8.0mm
- Surface Roughness (Polished): Ra ≤ 1nm
- Surface Polish: SSP or DSP available
- Orientations: Euler angles (0°,138.5°,26.7°) or (0°,22°,90°), Z-cut, or custom 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 |
Product Images
Frequently Asked Questions
What are the products you mainly work on?
We specialize in piezo wafers and were the first to work with Single Crystal Quartz in China about 30 years ago. Our expertise extends to LiNbO₃, LiTaO₃, Quartz glass, LGS, and CTGS 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 can fabricate according to your specifications. Our experienced team can provide technical suggestions if you're unsure about your selection. We also maintain standard wafer inventory for immediate delivery.
Can you deliver via our courier agent?
Yes, we can ship using your preferred courier (DHL, FedEx, UPS) with your account. We optimize packaging to minimize shipping costs while ensuring product safety.
How do you guarantee product safety during shipping?
We use adequate packaging with buffer sponge and fragile labels. For damage claims, follow our acceptance check procedure: inspect outer carton condition, photograph packaging before opening, and contact us immediately if damage is found without removing products from packaging.
Acceptance Check Procedure
Important Handling Instructions:
- Handle with care upon receipt
- Check outer carton condition before opening
- Photograph packaging alignment before removal
- Open vacuum package only in clean room environment
- If damage is found, document immediately and contact us without removing products from packaging
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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