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US08928073B2 Semiconductor devices including guard ring structures 有权
半导体器件包括保护环结构

Semiconductor devices including guard ring structures
Abstract:
A semiconductor device includes a substrate partitioned into a cell region, a peripheral circuit region, and an interface region between the cell region and the peripheral circuit region. A guard ring is provided in the interface region of the substrate and surrounds the cell region. A first gate structure is in the cell region, and a second gate structure is in the peripheral circuit region.
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