| 摘要 |
PURPOSE: A semiconductor device and a manufacturing method thereof are provided to enhance a refresh property of a cell by depositing an absorption preventing layer of a dielectric film on a semiconductor substrate and dividing the dielectric film among capacitors. CONSTITUTION: An absorption prevention layer(140) is formed on a semiconductor substrate including a lower electrode contact plug. A lower electrode(210) is connected to the lower electrode contact plug. A dielectric separating structure includes a dielectric film(220) formed on the lower electrode.
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