Purity of thin film deposition of vacuum electroplating electric heating pipes

Purity of thin film deposition of vacuum electroplating electric heating pipes

 

the purity of the evaporation source;

 

Possible contamination from heating devices and crucibles;

 

Residual gases in the vacuum system.

Influencing Factors of Vacuum Evaporation of Vacuum Electroplating Electric Heating Tubes

 

the evaporation rate of the substance

 

vapor pressure of the element

 

Uniformity of thin film deposition

 

Purity of thin film deposition

Classification of Evaporation Sources for Vacuum Electroplating Electric Heating Tubes

 

Resistive heating evaporation

 

E-beam heating evaporation

 

Arc heating evaporation

 

laser heating evaporation

The vacuum evaporation deposition process of vacuum electroplating electric heating tube consists of three steps:

 

The evaporation source material is transformed from the condensed phase to the gas phase;

 

Transport of evaporated particles between the evaporation source and the substrate;

 

After the evaporated particles reach the substrate, they condense, nucleate, grow, and form a film.

Ion Beam and Ion Assist for Vacuum Electroplating Electric Heating Tube

 

The two most basic methods of physical vapor deposition are evaporation and sputtering, as well as ion beam and ion-assisted methods.

 

Evaporation has some distinct advantages over sputtering, including higher deposition rates, relatively higher vacuum levels, and the resulting higher film quality.

 

The sputtering method also has some advantages of its own, including easy control of chemical composition when depositing multi-component alloy thin films, and better adhesion of the deposited layer to the substrate.

The three stages of the physical vapor deposition process of vacuum electroplating electric heating pipes:

 

emit particles from the raw material;

 

particle transport to the substrate;

 

The particles condense, nucleate, grow, and form films on the substrate.

Characteristics of preparation method of vacuum electroplating electric heating tube film

 

It is desirable to use solid or molten material as the source material for the deposition process.

 

The source material goes through a physical process into the gas phase.

 

A relatively low gas pressure environment is required.

 

No chemical reaction takes place in the gas phase and on the surface of the substrate.

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