Let us know what you use your silicon wafers for and receive a 5% discount off your order.
See below for silicon properties.
|Melting point, °C||1412|
|Surface tension, liquid at mp, mN/m||736|
|Thermal linear expansion @25°C||2.55 x 10-6|
|Thermal conductivity @27°C, W/(m x °C)||159|
|Specific heat capacity (solid), J/(kg x °C)||712|
|Thermal coefficient of refractive index @ 25°C||1.50 x 10-4|
|Modulus of rupture, MPa||125|
|Young modulus (E), Pa||1.89 x 1010|
|Shear modulus (G), Pa||7.99 x 1010|
|Solubility in water insoluble||Insoluble|
Below is the refractive index of silicon wafers.
According to the formula
where e0 = 11.67 is static permittivity, refractive index of
silicon tends to 3.416, when wavelength tends to infinity
(to 1000 μm and more in our case).
Below is a table shows the electrical properties of silicon.
|Intrinsic resistivity, kOhm x cm||240|
|Intrinsic electron drift mobility, cm2/(V x s)||1500|
|Number of intrinsic electrons, cm-3||.22 x 1010|
|Ohm x cm (n-type), 1015/cm3||2.93|
|1 Ohm x cm (p-type), 1015/cm3||7.33|
|Intrinsic hole drift mobility, cm2/(V x s)||600|
|Band gap, minimum, eV||300 K||1.14|
The semiconductor industry generates greater $300 Billion annualy in gross sales. The majority of sales are associated with silicon. A hiccup in this industry, say if Moore's Law is finally reached then a collapse in the global economy could happen and quickly!
Below are just some of Silicon Wafer Real-World Uses
Would you upgrade your current computer if it provided no increase in performance? Would companies update server farms if yesterday's technology is just as good? Would you pay ten times the amount for a computer or mobile device with new composite chips that may replace silicon chips? Probably not. This could rapidly slow computer upgrades and replacements and could conceivabally throw the world into a recession or worse. This potential tech correction would be larger than the dot.com bust of the early 2000s.
So what uses are so important that the world cannot live without it?
For starters your phone's microchips.
Your current vehicle's sensors.
The future Driverless vehicle sensors.
A researcher recently procured the followng silicon ingot for micromachining silicon diffractive optics and silicon grisms for space observatories.
Silicon is stable at very cold or cryogenic temperatures that is required to work in the infrared. Silicon’s high refraction index (3.4) is a great transmission in the 1.1-7 micron range is great for gratings and grisms for spectrographs that operate in the near infrared (NIR). Silicon is also ubiqutous and tooling and experience readily available.
These devices offer substantial advantages in compactness, formatting, and efficiency over other dispersive devices. For example, high-resolution spectrographs designed around immersion gratings can have volumes an order of magnitude smaller than comparable instruments built around conventional gratings. In addition, the ability to make coarse grooves using micromachining allows us to produce gratings that make it possible for the first time for infrared instruments to have continuous wavelength coverage over large bands at high resolution.
Grisms are dispersive transmission optics that are often used in instruments that combine imaging and spectroscopy. The resolving power of devices with the same opening angle depends on the refractive index of the substrate as (n-1). Silicon grisms of a given size have resolving powers 3-4 times greater than those of grisms made from glass or other low index materials