Fishing – trapping – and vermin destroying
Patent
1995-12-04
1997-02-04
Wilczewski, Mary
Fishing, trapping, and vermin destroying
437 24, 437 29, 437240, 437 44, H01L 21336
Patent
active
055997260
ABSTRACT:
A Metal Oxide Semiconductor Field Effect Transistor (MOSFET) with limited susceptibility to Hot Carrier Effects (HCEs), and a method by which that MOSFET is formed. There is first provided a semiconductor substrate which has a first portion, a second portion adjoining a side of the first portion and a third portion adjoining an opposite side of the first portion. Formed upon the first portion of the semiconductor substrate is a gate oxide layer which has a gate electrode formed and aligned thereupon. The gate electrode has a first sidewall adjoining the second portion of the semiconductor substrate and a second sidewall adjoining the third portion of the semiconductor substrate. Formed upon the first sidewall of the gate electrode and upon the surface of the second portion of the semiconductor substrate adjoining the first sidewall is a conformal oxide layer. The conformal oxide layer has a dose of fluorine atoms incorporated therein. Formed upon the conformal oxide layer at a location above the second portion of the semiconductor substrate and adjoining the first sidewall of the gate electrode is a conductive spacer. Formed into the second portion of the semiconductor substrate at a location adjoining the conductive spacer and further removed from the gate electrode is a source electrode. Formed into the third portion of the semiconductor substrate is a drain electrode.
REFERENCES:
patent: 5108935 (1992-04-01), Rodder
patent: 5393676 (1995-02-01), Anjum et al.
patent: 5521434 (1996-05-01), Ueno et al.
Chartered Semiconductor Manufacturing PTE LTD
Dutton Brian K.
Saile George O.
Szecsy Alek P.
Wilczewski Mary
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