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# Plasma Engineering

## 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   Here, the Langmuir probe of the DC power supply was used. The biasing voltage was charged from -70v to +70v. The Langmuir probe was compensated with an LC parallel filter circuit to avoid the influence …

## Plasma engineering math problem

Plasma engineering math problem   Question: A Langmuir probe of 1 mm diameter and 10 mm long is connected vacuum chamber to measure ion saturation current. Find the plasma density from the following information: electronic charge, e = 1.6×10-19 C, Boltzmann constant k= 1.38×10-23 J/K, T= 300 K (Assume), and …

## How electron temperature is obtained from a practical current-voltage characteristics curve?

How electron temperature is obtained from a practical current-voltage characteristics curve?   Figure 1: A practical current-voltage characteristics   The electron temperature can be estimated using the following equation Where Te=Electron temperature Isat=Electron saturation current   Read:What Is Target Utilization Plasma Sputtering? How Is Percent Of Target Utilization Calculated?

## Define Debye length? Derive the equation for Debye length?

Define debye length. Prove that debye length is expressed by λD = (ϵq0/nT0e)1⁄2, where symbol have their usual meaning   Debye length: The Debye length is the scale over which mobile charge carriers (e.g. electrons) screen out electric fields in plasmas and other conductors. In other words, the Debye length is …

## What Is Target Utilization Plasma Sputtering? How Is Percent Of Target Utilization Calculated?

What Is Target Utilization Plasma Sputtering? How Is Percent Of Target Utilization Calculated? Target utilization sputtering Target utilization plasma sputtering is an area to deposit functional thin film in a specific area and near the chamber.   Calculation Percentage of Target Utilization The target utilization percentage estimated based on the …

## What Are The Merits And Demerits Of Plasma Sputtering Source?

Merits And Demerits Of Plasma Sputtering Source Magnetron sputtering sources are very familiar plasma sources for functional thin film preparation such as metal, oxide, nitride, and nano-materials thin film. The merits of plasma sputtering sources are   high-speed deposition rate, High-quality thin film property.    The major demerits of plasma …

## Define Plasma Sheath? What are effects of Plasma Sheath?

Define Plasma Sheath? What are the effects of Plasma Sheath Plasma Sheath Electron temperature is usually equal to or higher than that of ions. Since electrons are much lighter than ions, they can escape from plasma at a much faster speed than ions if there is no confining potential barrier. …

## What Is Plasma? What Are The Typical Features Of Plasma?

What Is Plasma? What Are The Typical Features Of Plasma?  Plasma  Plasma is considered the 4th state of the matter despite solids, liquids, and gases. A plasma is a collection of free-charged particles (electrons & ions) moving in a random direction that is electrically neutral. Typical features of plasma: Plasma …