Principles of Electronic Materials and Devices 4th. Edition by Safa Kasap | 9780078028182 | 78028183 | Holooly

Electronic Devices and Circuits

Principles of Electronic Materials and Devices

160 SOLVED PROBLEMS

Question: 9.7

REFRACTIVE AND GROUP INDEX OF Si AT 1550 nm Silicon photonic endeavors to integrate various photonic functionalities such as light guiding, light modulation, detection, etc., into the silicon microelectronics. Calculate the refractive and group index of Si at 1550 nm, one of the main communication ...

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The 1550 nm wavelength is equivalent to a photon e...

Question: 9.6

GROUP AND PHASE VELOCITIES Consider a light wave traveling in a pure SiO2 (silica) glass medium. If the wavelength of light is 1300 nm and the refractive index at this wavelength is 1.447, what is the phase velocity, group index (Ng), and group velocity (vg)? ...

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The phase velocity is given by

v=\frac{c}{...

Question: 9.4

CAUCHY EQUATION AND DIAMOND Using the Cauchy coefficients for diamond in Table 9.2, calculate the refractive index at 550 nm. ...

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At λ = 550 nm, the photon energy is

h f=\f...

Question: 9.3

SELLMEIER EQUATION AND DIAMOND The relevant Sellmeier coefficients for diamond are given in Table 9.2. Calculate its refractive index at 550 nm (green light) to three decimal places. ...

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The Sellmeier dispersion relation for diamond is [...

Question: 7.19

LOW-κ POROUS DIELECTRICS FOR MICROELECTRONICS It was mentioned in Chapter 2 that today’s high transistor density ICs have multilayers of metal interconnect lines that are separated by an interlayer dielectric (ILD). The speed of the chip (as limited by the RC time constant) depends on the overall ...

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The Maxwell–Garnett equation is particularly usefu...

Question: 7.18

IONIC POLARIZATION RESONANCE IN KCl Consider a KCl crystal which has the FCC crystal structure and the following properties. The optical dielectric constant is 2.19, the dc dielectric constant is 4.84, and the lattice parameter a is 0.629 nm. Calculate the dc ionic polarizability αi (0). Estimate ...

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At optical frequencies the dielectric constant [la...

Question: 7.17

A PYROELECTRIC RADIATION DETECTOR Consider the radiation detector in Figure 7.49 but with a single element A. Suppose that the radiation is chopped so that the radiation is passed to the detector for a time Δt seconds every τ seconds, where Δt ≪ τ. If Δt is sufficiently small, then the temperature ...

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Suppose that the radiation of intensity

I[/...

Question: 7.16

QUARTZ CRYSTAL AND ITS INDUCTANCE A typical 1 MHz quartz crystal has the following properties: fs = 1 MHz fa = 1.0025 MHz Co = 5 pF R = 20 Ω What are C and L in the equivalent circuit of the crystal? What is the quality factor Q of the crystal, given that Q = 1/2πfsRC ...

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The expression for

f_{s}

is

...

Question: 7.15

THE QUARTZ CRYSTAL AND ITS EQUIVALENT CIRCUIT From the following equivalent definition of the coupling coefficient, k² = Mechanical energy stored/Total energy stored show that k² = 1- f²s/f²a Given that typically for an X-cut quartz crystal, k = 0.1, what is fa for fs = 1 MHz? What is your ...

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C

represents the mechanical mass wh...

Question: 7.14

PIEZOELECTRIC SPARK GENERATOR The piezoelectric spark generator, as used in various applications such as lighters and car ignitions, operates by stressing a piezoelectric crystal to generate a high voltage which is discharged through a spark gap in air as schematically shown in Figure 7.44a. ...

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We need to express the induced voltage in terms of...

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