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Table 1 Thin film deposited condition
Parameter
Thin films
Ag-alloy
TiO
2
Deposition method
DC sputtering
DC reactive sputtering
Sputtering target
Ag-alloy (92.5%Ag-7.5%Cu)
Ti (99.97%)
Substrate
Glass, Si
Glass, Si
Substrate temperature
Room temp.
Room temp.
d
s-t
12 cm
12 cm
Base pressure
5.0x10
-5
mbar
5.0x10
-5
mbar
Working pressure
3.5x10
-3
mbar
5.0x10
-3
mbar
Cathode power
135 W
220 W
Flow rate of Ar
2 sccm
1 sccm
Flow rate of O
2
-
4 sccm
Deposition rate
1.2 nm/sec
0.013 nm/sec
Fig. 1
Diagram of the sputtering system
Fig. 2
A three-layer of a thin film system
Glass
TiO
2
(d = 30 nm)
TiO
2
(d = 30 nm)
Ag-alloy (d = vary)