A PN diode conducting 1 mA of current has an ohmic contact of area 0.08 μm² and surface density of 1 × 1020 cm³. (a) What specific contact resistance can be allowed if the voltage drop at the ohmic contact is to be limited to 50 mV? (b) Using Eq. (4.21.7), estimate the Bn that is allowed. Is that the maximum or minimum allowable Bn? (c) Repeat (b), but this time use Fig. 4-46 to estimate Bn. (Fig. 4-46 is based on a more detailed model than Eq. 4.21.7)

A PN diode conducting 1 mA of current has an ohmic contact of area 0.08 μm² and surface density of 1 × 1020 cm³. (a) What specific contact resistance can be allowed if the voltage drop at the ohmic contact is to be limited to 50 mV? (b) Using Eq. (4.21.7), estimate the Bn that is allowed. Is that the maximum or minimum allowable Bn? (c) Repeat (b), but this time use Fig. 4-46 to estimate Bn. (Fig. 4-46 is based on a more detailed model than Eq. 4.21.7)

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.2P: The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where...

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