| 摘要 |
A method for fabricating a semiconductor device includes forming a conductive material layer for forming a gate over a substrate including a cell region and a peripheral region, forming hard mask patterns over the conductive material layer, forming a mask pattern over the resultant structure in the cell region, exposing the peripheral region, trimming the hard mask patterns in the peripheral region, removing the mask pattern, and etching the conductive material layer to form gate patterns using the hard mask patterns.
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