Hangzhou Freqcontrol Electronic Technology Ltd.
                                                                                                           
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27 Years
Since 1999
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Mg-Doped Stoichiometric Lithium Tantalate Wafer 76.2mm-150mm Diameter for High-Power Frequency Converters

Price Negotiable
Price: Negotiable
MOQ: 5 pcs
Delivery Time: 1-4 weeks
Brand: BonTek
Product Description
Mg-Doped Stoichiometric Lithium Tantalate Wafer

Advanced Mg-doped stoichiometric lithium tantalate (SLT) wafers engineered specifically for high-power-frequency converter applications. These precision wafers deliver exceptional thermal conductivity and optical performance for demanding industrial and research applications.

Key Technical Specifications
Mg-doped SLT wafer with diameter specifications Precision polished lithium tantalate wafer surface SLT wafer edge profile and quality inspection
Dimensional Specifications
Diameter Primary Flat Orientation Thickness
76.2±0.2mm 22±1mm 36°Y, 42°Y, X-112°Y, Y, Z 0.07mm~1.0mm
100±0.2mm 32±1mm 0.1mm~1.0mm
150±0.2mm 47.5mm, 57.5mm, Notch 0.35mm~1.0mm
Surface Quality Parameters
Surface finish Single / Double side polish / Double side lapped
TTV < 1~5µm
BOW ± (20µm ~40um)
Warp <= 20µm ~ 50µm
LTV (5mmx5mm) <1.5 um
PLTV (<0.5um) ≥98% (5mm*5mm) with 2mm edge excluded
Polished side Ra Roughness Ra<=5A
Back Side Criteria Roughness Ra:0.5-1.0µm, GC#1000
Scratch & Dig (S/D) 20/10, 40/20, 60/40
Edge Profile Compl't with SEMI M1.2@with GC800# .regular at C typed
Cracks, saw marks, stains None
Material Properties
Crystal Structure Trigonal, Space group R3c, Point group 3m
Cell Parameters a=5.154Å, c=13.781Å
Melting Point 1650℃
Curie Temperature 607℃
Mohs Hardness 5.5
Density 7.46g/cm3
Dielectric Constants ε11/ε0:51.7
ε33/ε0:44.5
Elastic Stiffness Coefficients CE11:2.33(×1011N/m2)
CE33:2.77(×1011N/m2)
Piezoelectric Strain Constants d22:2.4(×10-11C/N)
d33:0.8(×10-11C/N)
Transmission range 400-4500nm
Electro-optical coefficients r33=30.4pm/V
Refractive index at 632.8nm no=2.176, ne=2.180
SLT wafer crystal structure and optical properties Lithium tantalate wafer manufacturing quality control
Frequently Asked Questions
What are the products you mainly work on?
We are piezo wafer specialists with over 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 for AT, SC, and IT cuts.
Can you accept product customization?
Yes, we offer complete customization and can fabricate according to your specifications. Our experienced team can provide technical recommendations and we maintain standard wafer inventory for immediate delivery.
Can you deliver via our courier agent?
We can ship using your preferred courier service (DHL, FedEx, UPS, etc.) via your account. We optimize packaging to minimize shipping costs while ensuring product safety.
How do you guarantee product safety during shipping?
We use specialized packaging with vacuum sealing and protective cartons filled with buffer sponge. Please follow our acceptance check procedure for damage verification.
Can we visit your factory?
Factory visits are welcome for large quantity purchases and long-term partnerships. We also offer videoconferencing for remote inspections.
Acceptance Check Procedure
SLT wafer acceptance check procedure and packaging guidelines
Important Handling Instructions:
• Products are fragile and adequately packed with "Fragile" labeling
• Check outer carton condition upon receipt and photograph before opening
• Open vacuum packaging only in clean room environments
• If damage is found, photograph/video immediately and contact us without removing from packaging

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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