Lithium Niobate (LiNbO3) Wafers
Jingxin New Materials is a professional lithium niobate wafer manufacturer, supplying SAW grade and optical grade LiNbO3 single crystal wafers from 3" to 8" in diameter — plus crystal ingots and MgO-doped LN for specialty optical applications. Crystal growth, slicing, polishing and inspection all run on our own line at our ISO-certified facility in Zhuji, Zhejiang.
Lithium Niobate (LiNbO3) wafers are our primary product line, available in SAW grade and optical grade, supporting 3" to 8" diameters — widely used in SAW devices, optical devices and RF components. SAW grade and optical grade share the same raw material standard; only the downstream processing differs.
Lithium Niobate or Lithium Tantalate Wafers?
Both are SAW-grade piezoelectric wafer materials — the right choice depends on your bandwidth, frequency and diameter requirements.
Lithium Niobate (LiNbO3) Wafers — this page
Higher electromechanical coupling for wider bandwidth, suited to SAW filters, RF front-end modules and optical modulators. Available up to 8" in diameter — the largest diameter in our lithium niobate wafer product line.
Lithium Tantalate (LiTaO3) Wafers
Still a strong coupling coefficient, with different temperature behavior than LN — commonly used in high-frequency filter designs and pyroelectric infrared sensors. Available up to 6" in diameter.
View LiTaO3 Wafer Specifications →SAW Grade LN Wafers
Surface acoustic wave (SAW) devices work by patterning interdigital transducers onto a piezoelectric wafer — the wafer's flatness and crystal lattice quality directly set the filter's insertion loss and out-of-band rejection. Our SAW grade LiNbO3 wafers are lapped and polished to S/D 20/10 surface quality with parallelism held to ≤10 arc sec, in cut orientations tuned for high-frequency filter and resonator designs (Y41°, Y64°, Y128° among the most common), with custom orientations available on request. This is the same lithium niobate wafer material grade used in our SAW Filters & RF Front-End application line.
| Diameter | 3", 4", 6", 8" |
|---|---|
| Orientation | X / Z / Y / Y41° / Y64° / Y128° |
| Thickness | 0.18 / 0.25 / 0.35 / 0.50 / 1.00 mm |
| Thickness Tolerance | ±0.005 mm |
| TTV | ≤2 µm |
| Warp | ≤10 µm |
| Surface Quality | S/D 20/10 |
| Polishing | Double-side |
| Parallelism | ≤10 arc sec |
Optical Grade LN Wafers
Optical grade LiNbO3 trades SAW-specific surface tolerances for tighter control over optical homogeneity (Δn ≤ 5×10⁻⁵) and absorption loss (<0.1%/cm at 633nm) — the two properties that determine how cleanly light propagates through the crystal in a modulator or waveguide. Cut orientation also affects how efficiently the electro-optic coefficient is used, since X-cut and Z-cut apply the electric field differently — worth confirming against your specific device design. This optical-grade lithium niobate wafer material is the base material for our optical communication and LNOI photonics applications.
| Material | LiNbO3 |
|---|---|
| Diameter | 3", 4" |
| Orientation | X-cut / Z-cut / Y-cut |
| Thickness | 0.5 / 1.0 mm |
| Thickness Tolerance | ±0.01 mm |
| Optical Homogeneity | Δn ≤ 5×10⁻⁵ |
| Optical Absorption | < 0.1%/cm (at 633nm) |
| TTV | ≤2 µm |
| Surface Quality | S/D 20/10 |
| Polishing | Double-side |
LiNbO3 Wafer Product Photos
Packaging condition, edge treatment and polished surface texture before shipment — for reference ahead of purchase.
Cleanroom Holder
Wafer staged upright in a cleanroom-dedicated carrier ahead of inspection, protecting edges and surface from contact.
Paired Wafers, Close-Up
Mirror-finish double-side polishing visible under direct light, with a consistent, chip-free chamfered edge.
LN Crystal Ingot
Some customers — crystal traders, research labs, or manufacturers with their own slicing and polishing lines — need the raw ingot rather than a finished wafer. We supply LN ingots in lapped, rough-polished or fine-polished surface conditions, so you can pick up the process at whichever stage fits your own capability. If you'd rather send us your target spec and skip the equipment investment, our wafer processing services handle slicing through final inspection on customer-supplied material.
| Diameter | 3", 4", 6", 8" |
|---|---|
| Orientation | X-cut / Z-cut / Y-cut |
| Length | 50–120 mm |
| Diameter Tolerance | ±0.5 mm |
| Uniformity | ±0.5 mm |
| Surface | Lapped / Rough-polished / Fine-polished |
MgO:Doped LN Wafers
Standard LiNbO3 has a known limitation: at high optical intensity, the crystal is prone to photorefractive damage — localized changes in refractive index that degrade device performance over time. Doping the crystal with magnesium oxide raises this optical damage threshold significantly, which is why MgO:LN is the standard choice for high-power laser systems and photorefractive applications where standard LN would fail. We offer 4.9, 5.0 and 6.0 mol% doping levels in X-cut and Z-cut orientations — the right doping level depends on your target optical power density, and we can help you narrow that down.
| Material | MgO:LiNbO3 |
|---|---|
| Doping | 4.9 mol% / 5.0 mol% / 6.0 mol% |
| Diameter | 3", 4" |
| Orientation | X-cut / Z-cut |
| Thickness | 0.5 / 1.0 mm |
| Thickness Tolerance | ±0.01 mm |
| TTV | ≤2 µm |
| Surface Quality | S/D 20/10 |
| Polishing | Double-side |
Frequently Asked Questions
Common questions about material grades, customized parameters, and delivery options.
What's the difference between SAW grade and optical grade LN?
SAW grade is optimized for piezoelectric performance in filters and resonators; optical grade prioritizes optical homogeneity and low absorption for photonic applications.
Can I buy crystal ingots instead of finished wafers?
Yes — see the Crystal Ingot section above, or send us your own material through our wafer processing services.
What's MgO-doped LN used for?
MgO doping raises the optical damage threshold, making it suitable for high-power optical and photorefractive applications where standard LN would be damaged.
Do you offer black / blackened LN wafers?
Yes — see our black lithium niobate wafers page for our reduction-treatment blackening technology.
Need LiNbO3 Wafers for Your Design?
Tell us your grade, diameter, orientation and thickness — we'll get back with a quote.