**5. Conclusions**

196 Dielectric Material

the annealing temperature.

temperature incrementally increases only 10°C. The comparison this result with experiment result we can see that there are the same. Thus, we estimate that frequency has no effect on

Figure 18 shows the dependence of annealing temperature on dielectrics material, glass and aluminum oxide. Simulation result shows that the aluminum oxide dielectric is more effective at reaching the annealing temperature than the glass dielectric. This result also is the same as that from experiment. We can conclude that the dielectrics material affects to annealing and cleaning result. The dielectric material that has higher dielectric constants is

> Temperature of copper wire with frequency f = 25 [kHz] Temperature of copper wire with frequency f = 30 [kHz] Temperature of copper wire with frequency f = 35 [kHz] Temperature of copper wire with frequency f = 40 [kHz]

8 8.2 8.4 8.6 8.8 9 9.2 9.4 9.6 9.8 10

8 8.2 8.4 8.6 8.8 9 9.2 9.4 9.6 9.8 10

Applied voltage [kV]

Applied voltage [kV]

*4.4.2. Dependence of annealing temperature on dielectric material* 

more effective to reach the annealing temperature.

**Figure 17.** Temperature of copper wire as a function of frequency

Dielectric material: Glass Dielectric material: Aluminum Oxide

600

600

650

700

750

Average temperature of copper wire [ 0C]

800

850

900

950

650

700

750

Average temperature of copper wire [ 0C]

800

850

900

950

**Figure 18.** Temperature of copper wire depending on the dielectric material

In this chapter, the authors succeeded in setting up the experiment and examining the potential application of dielectric in atmospheric pressure dielectric barrier discharge (APDBD) for annealing and cleaning thin copper wire. The new model of annealing thin copper wire in APDBD also was modeled to RLC equivalent circuit. In conclusion, the dielectric material and dielectric thickness are two parameters which strongly affect to annealing and cleaning thin metallic wire. For optimal annealing conditions, the dielectric with the thinner thickness and the higher dielectric constants is more effective to reach the elongation rate and cleaning surface. Moreover, the dependence of dielectric on frequency of applied power also were considered. The results show that the frequency is slightly effect to dielectric and annealing result.
