Silicon material(Si)
Intrinsic silicon currently has three grades and is widely praised by customers.
SI-MIRROR grade: single crystal, mainly used in the galvanometer mirrors of various high and low power lasers, standard shapes or customized shapes, typical: no transmittance requirements.
SI-OPTICAL grade: single crystal, mainly used for infrared temperature measurement and imaging purposes such as optical lenses, filters, prisms, etc., typically: higher transmittance requirements.
SI-Wafer grade: single crystal, mainly used in semiconductors, IGBT modules, diodes and triodes, typical: resistance control is extremely strict.
Applications :
Product Advantage :
Process: CZ and FZ
Size: less than D350mm
Resistivity: 5-20Ω/cm ;
More than 6000Ω/cm, stable mass production;
More than 10000Ω/cm, there are a few processes,
ICC’s silicon raw material comes from Merck, Germany, with a purity of 9N and an annual output of 5 tons. It provides three types of silicon: N-TYPE, P-TYPE and INTRINSIC, and the direction can be 111, 100, 110, etc.
Product Parameters :
| Physical properties | |
| Coefficient of thermal expansion 25℃(/oK) |
2.36*10-6 |
| Thermal conductivity（W/m·K） |
163 |
| Melting point（℃） |
1690 |
| Density（g/cm3） |
2.33 |
| Young’s modulus（GPa） |
103.91 |
| Poisson’s ratio |
0.28 |
| Shear modulus（GPa） |
79.92 |
| Mohs hardness |
7 |
| Optical properties | |
| Transmittance wavelength range |
1000-10000nm 30000-300000nm |
| Thermal light coefficient, dn/dT(1/K) |
1.6*10-4 |
| Absorption coefficient（1/cm） |
1.6*10-3@3000nm |
Refractive index as a function of wavelength
External transmittance curve for Silicon
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