8-Inch 128Y-Cut Black Lithium Niobate Wafer for SAW Applications with 1nm Surface Roughness and 1142°C Curie Temperature
Price:
Negotiable
MOQ:
5 pcs
Delivery Time:
1-4 weeks
Brand:
BonTek
Product Description
8-Inch Black Lithium Niobate Wafer Overview
Our 8-inch 128Y-cut Black LiNbO3 wafer is engineered for Surface Acoustic Wave (SAW) applications and Interdigital Transducer (IDT) use, featuring exceptional surface roughness of 1nm. The advanced reduction technology produces black lithium niobate with superior electrical charge neutralization capabilities, even under instantaneous electrical potential conditions.
Key Technical Advantages
- Nearly eliminated pyroelectric effect in reduced LN wafers
- Maintains identical piezoelectric properties to standard wafers
- Ideal for high-frequency SAW device manufacturing
- Available in 3-inch, 4-inch, 6-inch, and 8-inch diameters
- Compatible with all cut angles, including 128°Y and Z-cut
Technical Specifications
Wafer Parameters
| Material | 3", 4", 6", 8" LN wafer SAW/Optical grade |
|---|---|
| Orientation | X/Z/Y41°/Y64°/Y128°/YZ/YX or Customized |
| Curie Temperature | 1142°C±3°C |
| Reduction | Standard Black - 0.9E+11 ~ 9.0E+11 Super Black - 1.0E+10 ~ 9.0E+10 |
| Surface Finish | Single or double sides polish (DLP/SLP/SSP/DSP all available) |
| Thickness | 0.18/0.25/0.35/0.50/1.00 + mm |
| TTV | < 1~5µm |
| BOW | ± (25µm ~40µm) |
| Warp | <= 35µm |
| LTV (5mm×5mm) | <1.5 µm |
| PLTV (<0.5µm) | ≥98% (5mm×5mm) with 2mm edge excluded |
| Edge | Compliant with SEMI M1.2@with GC800#, regular at C typed |
| Orientation Flats | Available, per request |
| Polished Side Ra | Roughness Ra≤5Å |
| 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 |
Material Properties
| Growth Method | Czochralski method |
|---|---|
| Crystal Structure | M3 |
| Unit Cell Constant | a=b=5.148Å, c=13.863 Å |
| Melting Point | 1250°C |
| Density | 4.64 g/cm³ |
| Hardness | 5 (Mohs) |
| Refractive Index | no=2.286, ne=2.203 at 632.8nm |
| Nonlinear Coefficient | d33=34.45, d31=d15=5.95, d22=13.07 (pmv⁻¹) |
| Denko Coefficient | γ13=8.6, γ22=3.4, γ33=30.8, γ51=28.0, γ22=6.00 (pmv⁻¹) |
| Optical Transmittance | 370 ~ 5000nm and >68% at 632.8nm |
| Thermal Expansion | a11=15.4×10⁻⁶/K, a33=7.5×10⁻⁶/K |
Frequently Asked Questions
What are the products you mainly work on?
We are piezoelectric wafer specialists with 30 years of experience, starting with single crystal quartz manufacturing in China. Our expertise extends to LiNbO3, LiTaO3, quartz glass, LGS, and CTGS. We are the preferred supplier for quartz blanks, mastering AT, SC, and IT cuts with superior angle precision.
Can you accept product customization?
Yes, we provide full customization services and can fabricate according to your specifications. Our experienced team offers technical guidance for optimal wafer selection. We also maintain standard wafer inventory for immediate delivery.
Can you deliver the goods via our courier agent?
We accommodate all major courier services (DHL, FedEx, UPS) using your account. Our optimized packaging minimizes shipping costs while ensuring product safety. We also offer competitive freight arrangements through our established courier partnerships.
How can you guarantee we get what we want safely?
We employ comprehensive protective packaging with buffer sponge in appropriate cartons. Please follow our acceptance check procedure upon receipt. In case of transit damage, we provide replacement or refund when proper documentation is provided.
Can we visit your factory?
Factory inspections are welcome for large quantity purchases and long-term partnerships. We have hosted numerous international clients and also conduct virtual meetings via videoconferencing.
Acceptance Check Procedure
- Handle with care upon receipt and inspect outer carton condition
- Document packaging alignment before removing contents
- Open vacuum packaging exclusively in clean room environments
- If damage is detected, photograph/video immediately without removing from packaging
- Contact us immediately for resolution of transit-related issues
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