Why is GE preferred over SI?
Answer: The potential Barrier of Silicon is more compared to Germanium which makes Ge more conductive as compared to Si. 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 silicon is preferred more than 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.
What is the 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.
What is a germanium fuzz?
Fuzz pedals with germanium transistors tend to be a little more amp overdrive like. They’re smoother and warmer and can have a mid range boost. They also have more touch sensitivity and react really well to your guitar’s volume and tone knobs. Fuzz pedals with silicon transistors tend to have more top end treble.
How do you know if a transistor is silicon or germanium?
Grasp the transistor with your fingers. If the gain rises, it’s germanium. If it doesn’t, it’s silicon. If you’re not doing it for yourself, it’s not DIY.
Are germanium transistors still made?
The common transistor types used in guitar pedals are silicon and germanium. Most germanium transistor production ceased in the 1970s in favor of silicon which are more stable, consistent, have higher gain, and lower leakage.
Why are transistors so expensive?
1 Answer. The main characteristic that make them higher price are the very low demand and small quantities purchased, compared to other transistors.
Why CPU is so expensive?
They can be less than a dollar. The reason that Intel and AMD CPUs are expensive is largely due to their silicon area. A CPU, indeed any IC, starts as a silicon wafer. These start, currently, at 12 inches in diameter.
Is Moore’s Law?
Moore’s Law refers to Moore’s perception that the number of transistors on a microchip doubles every two years, though the cost of computers is halved. Moore’s Law states that we can expect the speed and capability of our computers to increase every couple of years, and we will pay less for them.
Why are chips so expensive?
Compared to other potato chips that are just sliced potatoes and then fried or baked, so there are differences between productions of chips, thus having different costs. Actually if you buy from whole sale market or directly from farmer, the potato cost might be even lower. So what justifies the cost.
Why are Pringles costly?
Besides the tin can and the high density of chips, I would say the lack of competition in the market makes them monopolistic, which might be why they are very expensive (which also makes my explanation of the production process useless, but nonetheless). Also, Pringles aren’t made in India, just imported and marketed.
How much is a silicon wafer worth?
The minimum silicon cost with 200mm diameter wafers is about $2 per square inch, resulting in a maximum cost per wafer of $100.. The minimum silicon cost reached with 300mm diameter wafers is about $3 per square inch, resulting in a maximum cost per wafer to of $400.