Uses of Silicon in Electronics
Learn Uses of Silicon in Electronics and Application of Silicon in Semiconductor Devices and Electronics and Everyday Life.
Here we Learn about Uses of Silicon in Electronics and Application of Silicon in Semiconductor Devices and Electronics and Everyday Life.
What is Silicon?
Silicon, atomic number 14 on the periodic table, is a semiconducting material from which integrated circuits (computer chips of all types – processors, memory chips, etc.; CCDs; transistors; etc) and semiconductor devices are made.
Silicon is one of the most common elements on Earth in the Earth’s crust, it’s second in mass only to oxygen and can be found in any quartz crystal. Beach sand is largely silicon. Silicon is also the semiconductor material out of which almost all modern transistors are made.
Uses of Silicon in Electronics
In electronics, silicon (Si) is primarily used to make Semiconductor devices.
Pure silicon forms rigid crystals because of its four valence (outermost) electron structure – one Si atom bonds to four other Si atoms forming a very regularly shaped diamond pattern.
Pure silicon is not a conductor because there are no free electrons; all the electrons are tightly bound to neighboring atoms.
To make silicon conducting, producers combine or “dope” pure silicon with very small amounts of other elements like boron or phosphorus.
Phosphorus has five outer valence electrons. When three silicon atoms and one phosphorus atom bind together in the basic silicon crystal cell of four atoms, there is an extra electron and a net negative charge.
This type of material is called n-type silicon. The extra electron in the crystal cell is not strongly attached and can be released by normal thermal energy to carry current; the conductivity depends on the amount of phosphorus added to the silicon.
Boron has only three valance electrons. When three silicon atoms and one boron atom bind with each other there is a “hole” where another electron would be if the boron atom were silicon. This gives the crystal cell a positive net charge (referred to as p-type silicon), and the ability to pick up an electron easily from a neighboring cell.
The resulting migration of electron vacancies or holes acts like a flow of positive charge through the crystal and can support a current. It is sometimes convenient to refer to this current as a flow of positive holes, but in fact the current is really the result of electrons moving in the opposite direction from vacancy to vacancy.
Silicone devices play a very important role in modern day computers, telecommunications and advanced electronics.
Integrated Circuits (IC), Microprocessors, Keypad, keyboard are all made with silicone.
Silicon Uses in Everyday Life
Silicon is found in abundant on earth and is used by almost everyone in Everyday life.
- It is used in building construction in form of beach sand and bricks.
- It is used to make Pottery and Ceramics in the form of mud.
- It is used in Computers, Mobile Phones and other such Electronic Gadgets in the form of IC Chips.
- Silicon is used in making Glass.
- Even our bones and skeleton has silicon
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