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  • Silicon Carbide (SiC) Crystals and Wafers
  • Silicon Carbide (SiC) Crystals and Wafers

Silicon Carbide (SiC) Crystals and Wafers

  • Excellent band gap, several times higher than Silicon
  • High thermal conductivity and low thermal expansion
  • High electric field brakdown voltage and high maximum current density
  • Applications: High frequency devices, LED solid-state lighting in extreme hash environment such as aerospace, military industry and nuclear engergy.
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Size 10x3, 10x5, 10x10,
15x15, 20x15, 20x20
dia2” x 0.33mm, dia2” x 0.43mm, dia4"x0.35mm
Thickness 0.5mm, 1.0mm Polishing Single or double
Crystal Orientation <001>±0.5° R\Redirection Precision ±0.5°
Redirection the
2°(special in 1°) Angle of Crystalline Special size and orientation are available upon request
Ra: ≤5Å(5µm×5µm)


Basic Properties:

Growth Method MOCVD Crystal Structure M6
Unit Cell Constant a=3.08 Å     c=15.08 Å  Sequence ABCACB
Direction <0001> 3.5° With Clearance 2.93 eV
Hardness 9.2(mohs) Heat Travels @300K 5 W/ cm.k
Dielectric Constants e(11)=e(22)=9.66 e(33)=10.33

Silicon Carbide (SiC) is a semiconductor containing silicon and carbon. Sic (Silicon Carbide) has thermal conductivity and great energy to penetrate electric field. There is currently much interest in its use as a semiconductor material in electronics, where its high thermal conductivity, high electric field breakdown strength and high maximum current density make it more promising than silicon for high-powered devices. SiC also has a very low coefficient of thermal expansion (4.0 × 10-6 /K) and experiences no phase transitions that would cause discontinuities in thermal expansion.The main application area of it are high frequency power electron devices (Schottky diodes, MOSFET , JFET, BJT, PIN diodes, IGBT) and optoelectronic devices (it is widely applied in backing material of blue LED).

Hangzhou Shalom EO offer the custom SiC wafers, they are widely used in the LED solid-state lighting and high-frequency devices, in applications of fields and extreme environmental applications such as aerospace, military industry, and nuclear energy.