摘要 |
In a gate array, a gate length is measured by dividing gate electrodes into groups according to their materials to distinguish between those groups. The shape of a contact pad portion (5) of a gate electrode (4) differs according to the groups. A difference described here appears as shape such as cutouts (6a-6c) or projections (6d-6f), which is distinguishable by a scanning electron microscope, for example.
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