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4 Inches Black LiTaO3 Substrate Wafer Piezoelectric Single Crystal Material

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4 Inches Black LiTaO3 Substrate Wafer Piezoelectric Single Crystal Material

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Brand Name : Crystro

Certification : ROHS

Place of Origin : China

MOQ : 1PCS

Price : Negotiable

Payment Terms : T/T, Western Union, MoneyGram

Supply Ability : 100 pcs per week

Delivery Time : 3-4 weeks

Packaging Details : Transparent clean box

Chemical Formula : LiTaO₃

Crystal Structure : Trigonal

Density : 7.45g/cm3

Curie temperature : 603±2℃

Hardness : 5.5-6 Mohs

Melting point : 1650℃

Thickness : 0.25,0.35,0.50(mm)

Orientation : Y42°/Y36°/X/Y/Z or Upon Request

Surface Process : Single/Double Sides Polishing

Roughness : Ra≤10Å

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4 Inches Black LiTaO3 Substrate Wafer Piezoelectric Single Crystal Material

4 Inches Black LiTaO3 Substrate Wafer Piezoelectric Crystal


Introduction:



Lithium Tantalate is a multi-functional material, which exhibits excellent electronic, electro-optical, pyroelectric, and piezoelectric properties, well-suited for SAW filters, optical communication, holographic, laser application. Polished LT wafer is widely used in electronic communication devices such as resonators, filters, and transducers, especially used surface acoustic wave devices for its good electromechanical coupling, and stable temperature Coefficient.


Main Advantages:


  • High Curie temperature point
  • Large Thermal power coefficient
  • Small dielectric constant
  • Stable chemical and physical properties

Material Properties:


Crystal Structure

Trigonal

Lattice Constant

a=5.154Å,c=13.783Å

Density

7.45g/cm3

Melting Point

1650℃

Curie Point

603±2℃

Mohs Hardness

5.5-6 Mohs

Thermal Conductivity

1015wm

Refractive Indices

n0=2.176 ne=2.180 @ 633mn

E-O Coefficient

R33=30.4

Transmission Range

400-5000nm

Pyroelectric Coefficient

2.3×10-7 C/cm2/K

Electromechanical Coupling Factor

R15≥0.3

Thermal Expansion Coefficient

a1=a2=1.61×10-6/℃, a3=4.1×10-6/℃

Dielectric Constant

es11/eo:39~43, es33/eo:42~43;et11/eo:51~54, et33/eo:43~46


Crystro offers:

Size

4" ,6" Boule or wafer,Acoustic or Optical grade

Doping

No Doping or With Fe

Boule Length

≥50mm

Wafer Thickness

Thickness 0.25,0.35,0.50(mm)

Orientation

Y42°/Y36°/X/Y/Z or Upon Request

Surface Process

Single/Double Sides Polishing

TTV

< 10µm

BOW

± (25µm ~40um )

Warp

≤35µm

Flat Width

32.0±2.0(mm) or Upon Request

Roughness

Ra≤10Å

Chamfer

≤0.1mm@45°


Picture:



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