Why is silicon transistor more commonly used compared to germanium transistor?

Why is silicon transistor more commonly used compared to germanium transistor?

Silicon as a semiconductor has wider bandgap than germanium and therefore it can be operated at a much higher temperature up to 120 degree centigrade . It interstice concentration is much less than Ge and therefore the reverse saturation current has much less values for Si which means less of currents.

Why is silicon the most widely used semiconductor?

Silicon, a very common element, is used as the raw material of semiconductors because of its stable structure. Purification of Silicon consumes large amounts of power. In Japan, refined Silicon (ingot) with purity of at least 98% is imported from Australia, China and Brazil, where electricity is relatively inexpensive.

Why is silicon The most commonly used substrate for fabricating ICS?

Silicon material has been widely used in semiconductor device fabrication because of its low cost and its producibility of high quality silicon dioxide needed for impurity diffusion and surface passivation processes.

Why is the silicon mostly chosen when compared to germanium 1 point?

Why is the silicon mostly chosen when compared to germanium? Explanation: The normal working temperature of germanium is approximately 70°C . The other advantages of using a silicon material are, it has a smaller ICBO and its variations are smaller with temperature.

Which is better Silicon or germanium?

In present, Silicon is preferred over Germanium for semiconductor. The structure of Germanium crystals will be destroyed at higher temperature. Also, Silicon has much smaller leakage current than that of germanium.

What is difference between silicon and germanium?

Silicon and germanium have four valence electrons but at the given temperature germanium will have more free electrons and higher conductivity than silicon. Silicon is more widely used in the electronic device than germanium since it can be used at a higher temperature.

Which is better silicon or germanium?

Why is there a silicon shortage?

The ongoing computer chip shortage has multifaceted causes, including drought, an uptick in demand following the pandemic, and the closure of factories due to local lockdowns. One of the contributing factors – a drought in Taiwan – has made it harder to manufacture chips as well.

Which is better semiconductor silicon or germanium?

Why is silicon usually preferred to germanium in the manufacture of semiconductor devices? Silicon is abundant on the earth’s surface and therefore cheaper than germanium. The PIV (Peak Inverse Voltage) rating of silicon is much higher than germanium and therefore can withstand much higher temperatures than germanium.

Why is silicon so important?

Silicon is one of the most useful elements to mankind. Most is used to make alloys including aluminium-silicon and ferro-silicon (iron-silicon). These are used to make dynamo and transformer plates, engine blocks, cylinder heads and machine tools and to deoxidise steel. Silicon is also used to make silicones.

What is the difference between silicon and germanium?

Why is Si preferred over germanium?

The structure of Germanium crystals will be destroyed at higher temperature. However, Silicon crystals are not easily damaged by excess heat. Peak Inverse Voltage ratings of Silicon diodes are greater than Germanium diodes. Si is less expensive due to the greater abundance of element.

Why is silicon usually preferred over germanium for fabrication of?

At room temperature, a silicon crystal has fewer free electrons than a germanium crystal. This implies that silicon will have much smaller collector cut off current ( ICBO) than that of germanium. In general, with germanium, ICBO is 10 to 100 times greater than with silicon.

Which is more expensive, Si or germanium wafer?

Si is less expensive due to the greater abundance of element. The major raw material for Si wafer fabrication is sand and there is lots of sand available in nature. But there is a disadvantage for Silicon over Germanium. The potential Barrier of Silicon is more compared to Germanium.

What’s the difference between silicon and germanium crystals?

This implies that silicon will have much smaller Collector cut off current than Germanium. The variation of Collector cut off current with temperature is less in Silicon compared to Germanium. The structure of Germanium crystals will be destroyed at higher temperature.

Why are silicon diodes better than germanium diodes?

At room temperature, Silicon crystal has fewer free electrons than Germanium crystal. This implies that silicon will have much smaller Collector cut off current than Germanium. The variation of Collector cut off current with temperature is less in Silicon compared to Germanium.