| 摘要 |
PURPOSE: A TFT(Thin Film Transistor) and a flat display element having the same are provided to form a normal channel between a source electrode and a drain electrode although a heat process is performed. CONSTITUTION: At least one of a source electrode, a drain electrode and a gate electrode includes an aluminum alloy lay(131). Titanium layers(132,133) are formed on both surfaces of the aluminum alloy lay. An element selected among silicon, copper, neodymium, platinum and nickel includes about 0.1 mass percents to 5 mass percents in the aluminum alloy lay.
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