US Patent 9997510 Semiconductor device layout structure
Patent 9997510 was granted and assigned to Vanguard International Semiconductor Corporation on June, 2018 by the United States Patent and Trademark Office.
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The invention provides a semiconductor device layout structure disposed in an active region. The semiconductor device layout structure includes a first well region having a first conduction type. A second well region having a second conduction type opposite the first conduction type is disposed adjacent to and enclosing the first well region. A first doped region having the second conduction type is disposed within the first well region. A second doped region having the second conduction type is disposed within the first well region. The second doped region is separated from and surrounds the first doped region. A third doped region having the second conduction type is disposed within the second well region.
US Patent 09997510 Semiconductor device layout structure US Patent 9997510 Semiconductor device layout structure
US Patent 09997510 Semiconductor device layout structure
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