Saturday , October 23 2021
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• ## What is latch up problem and how can it be eliminated

What is latch up problem and how can it be eliminated   The latch is …

• ## Superposition theorem

Superposition Theorem The superposition theorem states that the voltage across (or current through) an element in …

• ## Why An Induction Motor Can’t Run At Synchronous Speed?

Why An Induction Motor Can’t Run At Synchronous Speed? Or Why the Rotor Of the …

• ## 3 Math Example Related To Binding Energy

Math Example Related To Binding Energy. 1. The helium nucleus  42He (also called an alpha particle)has …

• ## Single phase full wave controlled converter

Single phase full wave controlled converter   The circuit arrangement of a single-phase full converter …

• ## what are the advantages of FM over AM?

what are the advantages of FM over AM Advantages of FM over AM are 1. …

• ## Explain Ion saturation current and current-voltage characteristics curve measuring equipment

Explain Ion saturation current and current-voltage characteristics curve measuring equipment?   Solution Figure 1   …

• ## Single phase full wave controlled converter

Single phase full wave controlled converter   The circuit arrangement of a single-phase full converter …

• ## What is Power System Stability and Importance of Stability?

Power System Stability and Importance of Stability An electric power system may be a network of electrical components used to supply, …

## Basic model for thermal oxidation of silicon

Explain the basic model for thermal oxidation of silicon?   Solution:   Model assumptions: This model is valid for a temperature range of 700-1300C, 0.2 – 1 atm pressure, and oxide thickness of 300 – 20,000 Angstrom. The oxidizing species- 1. are transported from the bulk gas phase to gas-oxide …

## Explain different oxide charges?

Explain different oxide charges?   Question: With the necessary diagram, write the name of different charges those are trapped at the Si-SiO2 interface. Also, explain how the charges can be reduced? or Question: Explain different oxide charges and explain how the charges can be reduced?   Solution: The Si-SiO2 interface …

## Factor that affect the oxide growth rate

Q: What are the factor that affect the oxide growth rate?   Solution: Factors affecting the oxide growth rate The crystal orientation of Si affects the oxide growth rate because the reaction rate constant depends on the crystal structure of the Si surface. Any unintentional moisture accelerates the dry oxidation …

## Why wet oxidation rate higher than dry oxidation rate?

Why wet oxidation rate higher than dry oxidation rate?   Values of C* (Concentrations) for O2 and H2O species in SiO2 at 1000°C are 5.2 x 1016 and 3.0 x 1019  respectively. Again flux of oxidant is proportional to C*, which is almost three orders of magnitude greater for water than for …