| 摘要 |
An ultra-short channel device with an inverse-T gate lightly-doped drain (ITLDD) structure is disclosed. The present invention includes a semiconductor substrate, which includes a top surface; a source region formed in the semiconductor substrate; and a drain region formed in the semiconductor substrate spaced from the source region by a channel region. Further, the present invention also includes an inverse-T shaped silicon region formed over the semiconductor substrate, wherein the inverse-T shaped silicon region is approximately disposed within the area of the channel region; and a sidewall insulating region abutting to a sidewall of the inverse-T shaped silicon region. A first conductive region is formed on the top surface of the inverse-T shaped silicon region, and a second conductive region is formed on the top surface of the source region. Also, a third conductive region is formed on the top surface of the drain region.
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