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Why silicon has low leakage of current as compared to germanium?
Wiki User
∙ 12y ago
Each has four valence electrons, but germanium will at a given temperature have more free electrons and a higher conductivity. Silicon is by far the more widely used semiconductor for electronics, partly because it can be used at much higher temperatures than germanium.
Wiki User
∙ 12y ago
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Why you prefer silicon atom as compared to germanium atom?
newmnfkas,.m,a
Why germanium is less used than silicon?
Germanium is costly, less abundant and there aren't as many feasible processes for it as compared to Si for fabrication.
Why germanium is better than silicon?
products made by silicon are more stable than those made by germanium
Why is silicon a better semiconductor than germanium?
Silicon is a good semi conductor than germanium because silicon is more readily available, cheaper and stable.
The Maximum spectral response of the germanium and silicon is in the X-ray region?
The Maximum spectral response of the germanium and silicon is in the x-ray region
Why leakage current of germanium is more than silicon?
Because the space charge region or depletion region is small in germanium compared to silicon hence leakage current is more in germanium than silicon
Why don't use germanium in silicon controlled rectifier?
the leakage current of silicon is less when compared with the leakage current of germanium.. hence scr's are made up of silicon than germanium.. hope tis one is useful to u all!- Vignesh.L(engineer, 1st year)
Why is silicon is preferred is germanium?
Silicon is actually preferred to germanium within the manufacture of semiconductor devices due to the following reasons:Silicon is cheap and abundantIn silicon, leakage current is less affected by temperature as compared to germanium.The leakage current in silicon is very very small as compared to germanium.The working temperature of silicon is more than that of germanium. The working junction temperature of silicon can go as high as 150C whereas the working junction temperature of germanium can only go as high as 60CSilicon dioxide is a stable insoluble solid that can be used both to electrically insulate circuitry and to passivate junctions preventing contamination (allowing use of inexpensive plastic packages), germanium dioxide is a crumbly water soluble solid (this requires all germanium devices to be packaged in expensive metal or glass hermetically sealed cases and making germanium integrated circuits almost impossible)
Why is the reverse saturation current of germanium diode more than silicon?
Germanium has four number of shells while Silicon has three number of shell. therefore for germanium less energy is required to move the electron from valence band to conduction band if compared to silicon. So at room temperature for germanium their are more number of electrons present in conduction bond hence more number of holes present in the valence energy band. Due to movement of holes reverse saturation current is produced. Their is more number of hole movement in germanium comparatively therefore reverse saturation current is more than silicon for germanium. You may refer to Electronic Devices and Circuits by Allen Mottershead Regards, Zain Ijaz UCTI, Malaysia Mechatronic Engineer.
What is represented by 'A' in 'OA79' diode?
The symbol 'A' indicates that this device is made from germanium . as you may know germanium has less cut in voltage so this device is used for low power signal or for signal processing. also the leakage current or reverse saturation current of germanium is greater than silicon.
Why Silicon transistor are preferred to germanium transistors?
)silicon has got less leakage current 2)high threshold voltage (to avoid unwanted triggering of the device from noise) 3)more adhesive to aluminum
Can you explain why silicon and germanium are used in the manufacturing of semiconductors?
silicon is less sensitive towards temperature.It costs low compared to germanium,
What is the advantage of silicon diode in other types in changing AC to DC?
Property Germanium silicon Depletion layer 0.15V 0.6V Forward Current milli amperes tens of amperes Reverse leakage micro amperes nano metres Current
What type of diode is proper to used silicon and germanium?
A: They both have redeemable quality. Germanium has lower turn on voltage as compared to silicon however their current capability is not too great and also have a problem leaking with temperature. SO THE USE IS DEPENDENT ON APPLICATIONS
Why you prefer silicon atom as compared to germanium atom?
newmnfkas,.m,a
Why you use silicon not germanium in SCR?
because lekage current of silicon is less than germenium
Why silicon is preferred over germanium in the fabrication of p-n junction diode?
Germanium diodes are more expensive than silicon ones, germanium is harder to process, germanium cannot be used to make integrated circuits (while early prototype integrated circuits were germanium the wiring between the integrated components cannot be integrated making it too expensive for production), germanium cannot operate with a junction temperature above 60C (silicon will operate up to 150C), and its reverse leakage current is greater. However! Germanium diodes have a lower forward voltage drop than silicon ones do, so they're better for some applications, like radio frequency detection.
