Pyroelectric Free Reduced LiNbO3 Wafer 128Y Cut SAW Grade
Pyroelectric Free Black LiNbO3 Wafer 128Y-Cut SAW Grade
The reduction technique is used to produce black lithium niobate (LiNbO3). Black LiNbO3 wafer has a high ability to neutralize charges even if the electric potential occurs instantaneously. The pyroelectric effect of LN wafer is almost eliminated and the transmittance is significantly reduced. The piezoelectric properties of black lithium niobate wafers are no different from those of standard wafers. Therefore, black reduced lithium niobate wafers are widely used to produce higher frequency surface acoustic wave devices.
BonTek is proud to announce that we can offer 3 ", 4 ", and 6 "black LN wafers for all cutting angles.
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Material |
3" 4" 6" 8" LN wafer Saw/Optical grade |
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Orientation |
X/Z/Y41°/Y64°/Y128°/YZ/YX or Customized |
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Curie Temp |
1142°C±3°C |
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Reduction |
Standard Black - 0.9E+11 ~ 9.0E+11 Super Black - 1.0E+10 ~ 9.0E+10 |
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Surface finish |
single or double sides polish (DLP/SLP/ SSP/DSP all available) |
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Thickness |
0.18/0.25/0.35/0.50/1.00 + mm |
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TTV |
< 1~5µm |
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BOW |
± (25µm ~40um ) |
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Warp |
<= 35µm |
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LTV (5mmx5mm) |
<1.5 um |
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PLTV(<0.5um) |
≥98% (5mm*5mm) with 2mm edge excluded |
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Edge |
Compl't with SEMI M1.2@with GC800# .regular at C typed |
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Orientation flats |
available, per request |
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Polished side Ra |
Roughness Ra<=5A |
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Back Side Criteria |
Roughness Ra:0.5-1.0µm GC#1000 |
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Edge Rounding |
Compliant with SEMI M1.2 Standard/refer to IEC62276 |
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Cracks, saw marks, stains |
None |
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Melting Point |
1253° C |
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Crystal System |
Trigonal |
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Point Group |
3m |
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Crystal Density |
4.647 x 10³ kg / m³ |
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Curie Temperature (Tc) |
1150°C |
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Heat Capacity (Cp) |
89 J / k.mol |
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Dielectric Constants |
T11=85.2 |
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T33=28.7 |
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Elastic Constants |
CE11=2.03 x 1011 N / m2 |
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CE12=0.573 |
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CE13=0.752 |
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CE14=0.085 |
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CE33=2.424 |
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CE44=0.595 |
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Piezoelectric Strain Constants |
e15=3.7 C / m2 |
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e22=2.5 |
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e31=0.23 |
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|
e33=1.33 |
Acceptance Check
- The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
- After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
- Please open the vacuum package in a clean room when the products are to be applied.
- If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.