As we move post pandemic 2020, the number of micro-sensors evident in everyday life continues to increase. From, sensors used in air conditioners, ro-water purifiers, automotive manifold pressure, iron-steel industries and air bag sensors to biomedical analysis, the range and variety are vast.
One of the main reasons for the growth of micro-sensors is that the enabling technologies are based on those used within the integrated circuit (IC) design and development industries.
Another feature that has shaped the trend of micro-sensors is that many (but certainly not all) are based on silicon (Si). The electrical properties of silicon have been studied for many years and are well understood and thoroughly documented. Silicon also possesses many desirable mechanical properties that make it an excellent choice for many types of mems sensor.
Silicon deposits to Semi-conductor industry:
It is most widely distributed in space in cosmic dusts, planetoids, and planets as various forms of silicon dioxide (silica) or silicates. More than 90% of the Earth’s crust is composed of silicate minerals, making silicon the second most abundant element in the Earth’s crust (about 28% by mass), after oxygen. As we know that silicon is the most frequent components of atmospheric nano-particles, so the possibilities of extraction of the silicon from the atmosphere may not be ruled out. [Silicon is a Frequent Component of Atmospheric Nanoparticles By: Bryan R. Bzdek†, Andrew J. Horan†, M. Ross Pennington†, Nathan J. Janechek‡, Jaemeen Baek§, Charles O. Stanier‡§, and Murray V. Johnston*]