Shallow trench isolation dummy pattern and layout method using the same

A dummy cell pattern for shallow trench isolation (STI). Active and shallow trench isolation areas are bounded by a circumference. An active area pattern completely overlaps the active area and a first polysilicon pattern in the shallow trench isolation area is outside the active area pattern. Layou...

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Hauptverfasser: HSIA CHINIU, DOONG KELVIN YIH-YUH
Format: Patent
Sprache:eng
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Zusammenfassung:A dummy cell pattern for shallow trench isolation (STI). Active and shallow trench isolation areas are bounded by a circumference. An active area pattern completely overlaps the active area and a first polysilicon pattern in the shallow trench isolation area is outside the active area pattern. Layout methods using the same are also disclosed.