Method of fabricating a semiconductor device

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

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438203, 438275, 438279, 438301, 438232, 438367, H01L 218238

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active

060777362

ABSTRACT:
A method of fabricating a semiconductor device includes the steps of preparing a semiconductor substrate having a first region and a second region, forming a first gate electrode and a second gate electrode over the semiconductor substrate at the first and second regions, respectively, implanting a first impurity ion into the substrate of the first region using the first gate electrode as a mask, implanting a second impurity ion into the substrate of the second region using the second gate electrode as a mask, forming sidewall spacers at both sides of each of the first and second gate electrodes, and implanting the second impurity ion into the first and second regions using the first and second gate electrodes and the sidewall spacers as masks.

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