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 3475

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

1 3020

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

BSNL, HCL,

3 9285

why germanium is most suitable for DWDM systems?

2322

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,

1078

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

612

Why is germanium more temperature dependent than silicon?

602

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

733

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

641

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

559

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?

526

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?

574

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?

658




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Un-Answered Questions { Germanium }

why germanium is most suitable for DWDM systems?

2322


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

1078


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

612


Why is germanium more temperature dependent than silicon?

602


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

733






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

641


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

559


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?

526


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?

574


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?

658