Silicon Long Wave Pass Filters

Silicon long wave pass filters are optical devices based on silicon-based materials, and the optical properties of silicon substrates are closely related to their preparation methods. Silicon long wave pass filters have good transmittance in the 1-8 μ m wavelength range, typically composed of multiple layers of reflective film and silicon substrate. The design of these film layers allows only light with a wavelength greater than a certain set value to pass through the filter, while shorter wavelength light is reflected or absorbed. In the 1-8 μ m wavelength range, it has a high transmittance, which is the main operating band of silicon long wave pass filters. In the 8-14 μ m wavelength range, the transmittance begins to decrease due to the absorption of oxygen elements. In the field of optics, silicon long wave pass filters are applied in the manufacturing of special optical glass, fiber optic amplifiers, laser crystals, and infrared detectors.

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	Diameter(inch)	Thickness(μm)	Orientation	Conductivity Type
	Screen Reset 8 6 4 2	Screen Reset 275-1000	Screen Reset <111> <110> <100>	Screen Reset N / P
More+ Less	8	275-1000	<111>	N / P
Silicon Long Wave Pass Filters，Diameter 8"，Orientation <111> Number：PSiWA8003 Diameter(inch)：8 Thickness(μm)：275-1000 Orientation：<111> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	8	275-1000	<110>	N / P
Silicon Long Wave Pass Filters，Diameter 8"，Orientation <110> Number：PSiWA8002 Diameter(inch)：8 Thickness(μm)：275-1000 Orientation：<110> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	8	275-1000	<100>	N / P
Silicon Long Wave Pass Filters，Diameter 8"，Orientation <100> Number：PSiWA8001 Diameter(inch)：8 Thickness(μm)：275-1000 Orientation：<100> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	6	275-1000	<111>	N / P
Silicon Long Wave Pass Filters，Diameter 6"，Orientation <111> Number：PSiWA6003 Diameter(inch)：6 Thickness(μm)：275-1000 Orientation：<111> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	6	275-1000	<110>	N / P
Silicon Long Wave Pass Filters，Diameter 6"，Orientation <110> Number：PSiWA6002 Diameter(inch)：6 Thickness(μm)：275-1000 Orientation：<110> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	6	275-1000	<100>	N / P
Silicon Long Wave Pass Filters，Diameter 6"，Orientation <100> Number：PSiWA6001 Diameter(inch)：6 Thickness(μm)：275-1000 Orientation：<100> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	4	275-1000	<111>	N / P
Silicon Long Wave Pass Filters，Diameter 4"，Orientation <111> Number：PSiWA4003 Diameter(inch)：4 Thickness(μm)：275-1000 Orientation：<111> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	4	275-1000	<110>	N / P
Silicon Long Wave Pass Filters，Diameter 4"，Orientation <110> Number：PSiWA4002 Diameter(inch)：4 Thickness(μm)：275-1000 Orientation：<110> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	4	275-1000	<100>	N / P
Silicon Long Wave Pass Filters，Diameter 4"，Orientation <100> Number：PSiWA4001 Diameter(inch)：4 Thickness(μm)：275-1000 Orientation：<100> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30
More+ Less	2	275-1000	<111>	N / P
Silicon Long Wave Pass Filters，Diameter 2"，Orientation <111> Number：PSiWA2003 Diameter(inch)：2 Thickness(μm)：275-1000 Orientation：<111> Substrate Material：Silicon（Si） Conductivity Type：N / P Diameter Tolerance(mm)：±0.2 Thk Tolerance(mm)：±10 Orientation Tolerance：±1° Resistance(Ω.cm)：10-1000 TTV(μm)：<10 BOW(μm)：<30 WARP(μm)：<30

Material Data
Optical Properties
Transmission Range	1.2-15μm
Refractive Index	3.41776%@10μm
Reflection Loss	46.1%@10μm
Structure	Single crystal,synthetic
Cleavage Planes	<111>
Physical Properties
Density [g/cm³]	2.33
Melting Point [℃]	1414
Thermal Conductivity [W/(m×K)]	163 @ 313K
Thermal Expansion [10^-6/K]	2.6 @ 293K
Knoop Hardness [kg/mm²]	1100
Specific Heat Capacity [J/(kg×K)]	712.8
Dielectric Constant	13 @f= 9.37GHz
Young's Modulus (E) [GPa]	130.91
Shear Modulus(G) [GPa]	79.92
Bulk Modulus(K) [GPa]	101.97
Poisson Coefficient	0.266
Chemical Properties
Solubility / g/L	None
Molecular Weight / g/mol	28.09

Silicon Long Wave Pass Filters

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Material Data

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