Sub-10-ps gate delay by reducing the current crowding effect at an extension
1997
In short-channel CMOS devices with extension structures, current crowding was found to occur in the source extension, significantly degrading current drivability. Reducing this effect by using high-dose extensions and low parasitic capacitance provided by a localized punchthrough stopper layer produced high drivability, enabling a sub-10-ps CMOS gate delay to be attained.
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