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MgO Crystal Substrates
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Product: Views:381MgO Crystal Substrates 
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Last updated: 2018-07-11 09:19
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Description

MgO single crystal as the dielectric constant and loss microwave band is very small, and can obtain a large area substrate (diameter of 2 inches and larger), it is currently an important industrial HTS thin monocrystalline substrate world.MgO is an excellent single crystal substrate for thin films of Ferro magnetic, Photo-electronic and high Tc superconductor materials. 

Features

dielectric constant and loss microwave band

an important industrial HTS thin monocrystalline substrate

stable physical performance

Applications

Semiconductor circuit substrate

MgO LED

MgO film

Main Specification

Materials

MgO

Orientation

[100] or [111] < ±0.5°

Parallel

10〞

Perpendicular

surface Quality

10/5

Wavefront Distortion

λ/4 @632nm

Surface Flatness

λ/8 @632nm

Clear Aperture

>95%

Chamfer

<0.1×45°

Thickness/Diameter Tolerance

±0.05 mm

Maximum dimensions

dia 50×100mm

Coatings

AR/AR@940+1030;HR@1030+HT@940+AR1030;

Material characteristics

Physical and chemicalcharacteristics

Chemical formula

MgO

Crystal structure

Cube

Lattice constant

a = 4.130 Å

Melting point (℃)

2800

Purity

99.95%

Density (g/cm3)

3.58

Hardness

5.5 (mohs)

Coefficient of thermal expansion (/ ℃)

11.2x10-6

Crystal cleavage plane

<100>

Optical transmission

> 90% (200~400nm),> 98% (500~1000nm)

Permittivity

ε = 9.65

Thermal conductivity (cal / cm sec degree)

0.14 @300°C

Standard product


Orientation

End configuration, nm

Thickness, nm

Optical transmission

[1 0 0]

5×5

0.5

 > 90% (200 ~ 400nm)
  > 98% (500 ~ 1000nm)

[1 1 1]

[1 0 0]

1

[1 1 1]

[1 0 0]

8×8

0.5

[1 1 1]

[1 0 0]

1

[1 1 1]

[1 0 0]

10×10

0.5

[1 1 1]

[1 0 0]

1

[1 1 1]

[1 0 0]

15×15

0.5

[1 1 1]

[1 0 0]

1

[1 1 1]

[1 0 0]

dia 25.4

0.5

[1 1 1]

[1 0 0]

1

[1 1 1]

[1 0 0]

dia 50.8

0.5

[1 1 1]

[1 0 0]

1

[1 1 1]



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