What is the plasma?

 

“A plasma is a quasi-neutral gas of charged and neutral particles which exhibits collective behavior.”

 

 •  Fourth state of matter

 •  Ionized Gas

 •  Gas discharge

 •  A quasi-neutral gas of charged and neutral particles

 •  Collective behavior

 •  99% of matter of universe is in the plasma state

 

Plasmas are conductive assemblies of charged particles, neutrals and fields that exhibit collective effects. Further, plasmas carry electrical currents and generate magnetic fields. Plasmas are the most common form of matter, comprising more than 99% of the visible universe.

 

 

 

 

 

Application of Plasma

 

Because plasmas are conductive and respond to electric and magnetic fields and can be efficient sources of radiation, they are usable in numerous applications where such control is needed or when special sources of energy or radiation are required.

 

Microelectronics

 

        

 

Figures from Roth & Rau

 

 •  Thin film deposition

 •  Plasma etching

 •  Ashing

 •  Cleaning

 •  …

 

Home application

 

   

 

Figures from http://www.meccatech.co.kr/

 •  Plasma Display

 •  LCD backlight

 •  UHP lamp

 •  Light sources

 •  Air conditioner

 •  …

 

Power / Energ

 •  Nuclear fusion

 •  MHD

 •  GIS

 •  …

 

Environment industry

 

Figure from PEAT

Waste treatment

Dry process for surface


 

Space / Defense

 •  EM propulsion

 •  EM-gun

 •  …

 

Materials / Mechanics

 

 

Figure from Roth & Rau

 •  Material synthesis

 •  Diamond

 •  TiN, TiC

 •  Nanotubes

 •  Low/High dielectrics

 •  …

 

Surface modification

 

 

Figures from Roth & Rau

 •  Plastics

 •  Polymers

 •  Lens coating

 •  Medical technology

 •  …

 

Decorative coatings

 

Figure from Roth & Rau

 •  Replacing wet plating

 •  …