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Mg-Doped Stoichiometric Lithium Tantlate Wafer For High-Power-Frequency Converters

Hangzhou Freqcontrol Electronic Technology Ltd.

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Mg-Doped Stoichiometric Lithium Tantlate Wafer For High-Power-Frequency Converters

Country/Region china
City & Province hangzhou shanghai
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Product Details

Mg-doped Stoichiometric Lithium Tantlate LiTaO3 Wafer for designing High-Power-Frequency Converters

 

Mg-doped stoichiometric lithium tantalate (SLT) is a promising material in high power generation, due to its high thermal conductivity. The accuracy of the temperature-dependent Sellmeier equation for Mg-doped SLT is important for designing high-power-frequency converters. We propose a temperature-dependent Sellmeier equation for the extraordinary refractive index of 1.0 mol % Mg-doped SLT. The equation is fitted with measured data in the first-order quasi-phase-matched (QPM) second harmonic generation (SHG) and optical parametric oscillation (OPO) with the fundamental and pump wavelengths being both 1.064 m and previously published data [Jpn. J. Appl. Phys. 41 (2002) 465] of SLT. The equation allows us to predict accurate QPM periods in the range of 0.5-4 m wavelength and in temperature range of 30-170 °C.

 

 

Diameter

76.2±0.2mm

100±0.2mm

150±0.2mm

Primary Flat

22±1mm

32±1mm

47.5mm, 57.5mm, Notch

Orientation

36°Y, 42°Y, X-112°Y, Y, Z

Thickness

0.07mm~1.0mm

0.1mm~1.0mm

0.35mm~1.0mm

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

 

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

 

 

 

 

 

FAQs:

 

  1. Q: What are the products you mainly work on?

A: We look at ourselves as the piezo wafer specialist. We are the very first to work with Single Crystal Quartz in China about 30 years ago. Then gradually we step in the field of LiNbO3, LiTaO3, Quartz glass, LGS, CTGS etc. Especially, if you are looking for a piezo quartz supplier, we are the ultimate choice! We export millions of quartz blanks each year because we master the AT, SC and IT cuts with superior angle precision.

 

  1. Q: Can you accept product customization?

A: Yes, of course. We can fabricate as per your request. In addition, we are so experienced with piezo wafers that we can provide you relevant suggestions if you are not 100% sure about your choice. Besides, we do have some standard wafers in stock, please check with us.

 

  1. Q: Can you deliver the goods via our courier agent?

A: Yes, we would suggest you go with the courier agent you are most familiar with (DHL, FedEX, UPS etc.). We can ship via your account. And, of course, we will pack the products safely in acceptable size to help you save the shipping cost. If you need us to take care of the freight, it’s also not a problem. We also have good discount with the international courier companies.

 

  1. Q: How can you guarantee we get what we want safely?

A: The wafer products are fragile and sometimes expensive. The last thing, as the manufacturer, we want to see is the products we make were damaged during courier. As a result, we will pack the wafers adequately and put them in a proper carton filled with buffer sponge. However, accidents are inevitable sometimes. So, please follow the “Acceptance check” steps shown in the drawings below. If the unwanted happened, we will either give the replenishment or refund if you follow the checking steps.

 

  1. Q: Can we visit your factory?

A: Sure. Factory inspection is important for large quantity purchase and long-term cooperation. Face to face discussion is what we mostly confident with. During the past years, big names around the world have witnessed our progress in factory build-up. These days, due to the Covid-19 pandemic, we also had the experience of videoconferencing with global buyers.

 

 

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.

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