Metal Coating Pellets
Time：2021-11-08 Author：Changsha Xinkang scientific research material service platform
Vacuum Evaporation Coating Material-Metal Coating Pellets
PVD vacuum evaporation coating materials (elemental metal coating particles) are mainly used to prepare various thin film materials with specific functions. The application fields include flat panel displays, semiconductors, solar cells, opto-magnetic recording media, optical components, energy-saving glass, LEDs, tools Modified, high-end decorative supplies, etc.
Process of evaporative coating
Evaporation by heating, including the process of transforming a solid or liquid phase into a gas phase, each substance has a different saturated vapor pressure at different temperatures
During the transportation process, the vaporized atoms or molecules collide with the residual gas molecules during the transportation between the evaporation source and the substrate. The collision is related to the mean free path of the vaporized atoms or molecules and the distance from the evaporation source to the substrate. .
The deposition process, the deposition of vaporized atoms or molecules on the surface of the substrate, that is, the condensation of vapor into nucleation, and the growth of nuclei to form a continuous film, is a process in which the gas phase is transformed into a solid phase.
Evaporation source materials and coating materials
After the coating material is determined, when selecting the evaporation source, the following issues should be paid attention to for the resistance evaporation source and the crucible evaporation source.
1. The melting point of the evaporation source material is higher than the evaporation temperature of the coating material (the evaporation temperature of the material refers to the temperature when the equilibrium vapor pressure of the material reaches 1.3Pa).
2. In order to prevent the evaporation source material from evaporating at the same time when the coating material is evaporated, which affects the purity of the film, generally, when the temperature of the coating material reaches the evaporation temperature, the material whose vapor pressure of the evaporation source material is lower than 10-6Pa is used as the evaporation source.
3. The evaporation source material should not chemically react or diffuse with the coating material at high temperature to form compounds or alloys.
4. The coating material melted at high temperature has a tendency to expand on the evaporation source material, which is easy to wet, and the evaporation state is stable. The evaporation source can be regarded as a container-shaped evaporation source.
5. Those that condense into a spherical shape are difficult to wet. The difficult-to-wet coating materials often roll in the evaporation source, making the evaporation process very unstable; sometimes they fall off the evaporation source.
Elemental metal pellets provided by Xinkang
| Name | Purity | Name | Purity |
| 银(Ag) | 3N5-5N | 铝(Al) | 4N-6N |
| 金(Au) | 4N-5N | 砷(As) | 2N-4N |
| 硼(B)) | 2N-6N | 铍(Be) | 2N-3N |
| 铋(Bi) | 4N-5N | 锆(Zr) | 3N-5N |
| 钙(Ca) | 3N | 镉(Cd) | 4N-5N |
| 铈(Ce) | 3N-4N | 钴(Co) | 3N-4N |
| 铬(Cr) | 2N5-3N5 | 铜(Cu) | 3N5-6N |
| 镝(Dy) | 3N-4N | 铒(Er) | 3N-4N |
| 铕(Eu) | 3N-4N | 铁(Fe) | 3N-4N |
| 镓(Ga) | 5N-7N | 钆(Gd) | 3N-4N |
| 锗(Ge) | 5N | 铪(Hf) | 3N-4N |
| 钬(Ho) | 2N5-3N | 铟(In) | 4N-5N |
| 铱(Ir) | 3N5 | 镧(La) | 3N-4N |
| 锂(Li) | 3N | 镥(Lu) | 3N-4N |
| 镁(Mg) | 3N5-4N | 锰(Mn) | 3N-4N |
| 钼(Mo) | 3N5-4N | 铌(Nb) | 3N5-4N5 |
| 钕(Nd) | 2N5-3N5 | 镍(Ni) | 2N5-5N |
| 锇(Os) | 3N5 | 铅(Pb) | 4N |
| 钯(Pd) | 3N5 | 镨(Pr) | 2N5-3N |
| 铂(Pt) | 3N5-4N | 铼(Re) | 3N5 |
| 铑(Rh) | 3N5 | 钌(Ru) | 3N5 |
| 锑(Sb) | 3N5-5N | 钪(Sc) | 3N5 |
| 硒(Se) | 3N-5N | 硅(Si) | 5N-7N |
| 钐(Sm) | 3N5 | 锡(Sn) | 3N5-5N |
| 锶(Sr) | 3N | 钽(Ta) | 3N5-4N |
| 铽(Tb) | 3N5 | 碲(Te) | 4N-6N |
| 钛(Ti) | 2N5-5N | 铥(Tm) | 2N5-3N5 |
| 钒(V) | 3N5-4N | 钨(W) | 3N5-5N |
| 钇(Y) | 3N5 | 镱(Yb) | 3N5 |
| 锌(Zn) | 3N5-5N |
Learn More Elemental Metal Pellets From XinKang
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