Hangzhou Freqcontrol Electronic Technology Ltd.
                                                                                                           
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27 Years
Since 1999
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Doped Lithium Niobate Wafer 3-8 inch Diameter with MgO Er Fe Doping for Optical and SAW Grade Applications

Price Negotiable
Price: Negotiable
MOQ: 2 pcs
Delivery Time: 1-4 weeks
Brand: BonTek
Product Description
Doped Lithium Niobate Wafers
Lithium Niobate (LiNbO3) is an exceptional optoelectronic material with unique piezoelectric, optical, and photoelastic properties. It offers excellent mechanical and chemical stability, making it ideal for integrated optics applications with superior electro-optic, acoustooptic, and nonlinear optical performance.
Available Grades & Specifications
BonTek provides up to 6" diameter single crystal optical grade LN material with reduced impurity levels. We offer both optical grade and SAW grade wafers with customizable doping percentages including Er:LN, MgO:LN, and Fe:LN.
SAW Grade Orientations
The most commonly used SAW orientations are YZ-cut and 128°Y-cut, optimized for television transmission and reception signal processing. The 128°Y-cut with X propagation delivers the lowest spurious signal level.
Lithium Niobate wafer sample showing crystal structure Close-up view of polished LiNbO3 wafer surface Lithium Niobate wafer with orientation markings
Technical Specifications
Parameter Specifications
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
Doping Options Er, MgO, single or double doped available
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
Property Value
Molecular Weight 147.85
Density 4.65 g/cm³
Crystal Class Rhombohedral
Moh's Hardness 5
QM Approx. 10000
QE 1000
Melting Temperature 1253°C
Curie Point 1150°C
Thermal Expansion (@25°C) 15.4 × 10⁻⁶/°C parallel to C-axis (0°C-110°C)
7.5 × 10⁻⁶/°C perpendicular to C-axis (0°C-110°C)
Thermal Conductivity (@25°C) 1 × 10⁻² cal/(cm/sec/°C)
Lithium Niobate wafer manufacturing process Quality control inspection of LiNbO3 wafers
Frequently Asked Questions
What are the products you mainly work on?
We are piezo wafer specialists with 30 years of experience. We were the first to work with Single Crystal Quartz in China and have expanded to LiNbO3, LiTaO3, Quartz glass, LGS, and CTGS materials. We export millions of quartz blanks annually with superior angle precision in AT, SC, and IT cuts.
Can you accept product customization?
Yes, we can fabricate according to your specifications. Our experienced team can provide technical recommendations if needed. We also maintain standard wafer inventory for immediate delivery.
Can you deliver the goods via our courier agent?
We can ship using your preferred courier (DHL, FedEx, UPS) via your account. We optimize packaging to minimize shipping costs while ensuring product safety.
How can you guarantee we get what we want safely?
We use adequate packaging with buffer sponge and fragile labeling. Please follow our acceptance check procedure: inspect outer carton condition, photograph packaging before opening, and open vacuum packages in clean rooms. Contact us immediately if damage occurs during transit.
Can we visit your factory?
Factory inspections are welcome for large quantity purchases and long-term partnerships. We also accommodate videoconferencing for remote discussions.
Acceptance Check Procedure
Step-by-step acceptance check procedure for wafer inspection
  • Products are adequately packed with fragile labeling and delivered through premium express carriers
  • Upon receipt, carefully handle and inspect outer carton condition
  • Photograph packaging alignment before removing contents
  • Open vacuum packages only in clean room environments
  • If damage is found during transit, photograph/video immediately without removing from packaging and contact us

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

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