Power transistor with silicided gate and contacts

A power field effect transistor is disclosed that includes polysilicon gate bodies (40) and (42), which includes platinum silicide contact layers (74) and (78) disposed on the outer surfaces of bodies (40) and (42), respectively. In addition, the device comprises an n+drain region (64) which also ha...

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Hauptverfasser: SMITH JEFFREY P, ERDELJAC JOHN P, EFLAND TAYLOR R, YANG JAU-YUANN, ARCH JOHN K, HUTTER LOUIS N, THOMPSON C. MATTHEW, YUAN HAN-TZONG, MURPHY MARY ANN
Format: Patent
Sprache:eng
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Zusammenfassung:A power field effect transistor is disclosed that includes polysilicon gate bodies (40) and (42), which includes platinum silicide contact layers (74) and (78) disposed on the outer surfaces of bodies (40) and (42), respectively. In addition, the device comprises an n+drain region (64) which also has a platinum silicide drain contact layer (76) formed on its outer surface and platinum silicide source contact layers (75) and (77). During formation, sidewall spacers (50) and (52), as well as mask bodies (70) and (72) are used to ensure that platinum silicide layer (76) spaced apart from both gate bodies (40) and (42) and platinum silicide gate contact layers (74) and (78).