Abrupt junction formation by atomic layer epitaxy of in situ...

Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate

Reexamination Certificate

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C438S301000, C438S306000, C438S526000, C438S527000, C438S529000, C257SE21043, C257SE21044, C257SE21049, C257SE21054

Reexamination Certificate

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07485536

ABSTRACT:
A method including forming a channel region between source and drain regions in a substrate, the channel region including a first dopant profile; and forming a barrier layer between the channel region and a well of the substrate, the barrier layer including a second dopant profile different from the first dopant profile. An apparatus including a gate electrode on a substrate; source and drain regions formed in the substrate and separated by a channel region; and a barrier layer between a well of the substrate and the channel region, the barrier layer including a dopant profile different than a dopant profile of the channel region and different than a dopant profile of the well. A system including a computing device including a microprocessor, the microprocessor including a plurality of transistor devices formed in a substrate, each of the plurality of transistor devices including a gate electrode on the substrate; source and drain regions formed in the substrate and separated by a channel region; and a barrier layer between a well of the substrate and the channel region.

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