Topic :: Germanium





Germanium Interview Questions
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To get a P-type of Germanium, with which of the following should germanium be mixed ? (a) Trivalent impurities (b) Tetravalent impurities (c) Pentavalent impurities (d) None of these

1 3490

If indium is added in small quantities to germanium, we get (1) n ? type semiconductor (2) p ? type semiconductor (3) rectifier (4) insulator

1 3035

the maximum spectral response of the germanium and silicon is in the ?

BSNL, HCL,

3 9328

why germanium is most suitable for DWDM systems?

2326

Two initially identical samples A and B of pure germanium are doped with donors to concentrations of 1*10, 20 m-3 and 3*10, 20 m-3 respectively. If the hole concentration in A is 9*10 12 m-3, then the hole concentration in B at the same temperature will be

C DAC, CDAC,

1086

Why is silicon preferred over germanium in the manufacture of semiconductor devices?

623

Why is germanium more temperature dependent than silicon?

612

Why silicon type transistors are more often used than germanium type?

743

Why is silicon preferred to germanium in the manufacturing of semiconductor devices?

651

Why silicon and germanium are the two widely used semiconductor materials?

566

Tell me, when a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

535

When a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

586

Explain when a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

664




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Un-Answered Questions { Germanium }

why germanium is most suitable for DWDM systems?

2326


Two initially identical samples A and B of pure germanium are doped with donors to concentrations of 1*10, 20 m-3 and 3*10, 20 m-3 respectively. If the hole concentration in A is 9*10 12 m-3, then the hole concentration in B at the same temperature will be

1086


Why is silicon preferred over germanium in the manufacture of semiconductor devices?

623


Why is germanium more temperature dependent than silicon?

612


Why silicon type transistors are more often used than germanium type?

743






Why is silicon preferred to germanium in the manufacturing of semiconductor devices?

651


Why silicon and germanium are the two widely used semiconductor materials?

566


Tell me, when a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

535


When a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

586


Explain when a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

664