Fabrication process of a trench gate power MOS transistor with scaled channel (Brevetto)

Type
Label
  • Fabrication process of a trench gate power MOS transistor with scaled channel (Brevetto) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • Currò G. ; Fazio B. (2005)
    Fabrication process of a trench gate power MOS transistor with scaled channel
    (literal)
Titolo
  • Fabrication process of a trench gate power MOS transistor with scaled channel (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Currò G. ; Fazio B. (literal)
Http://www.cnr.it/ontology/cnr/brevetti.owl#ricaduteEconomicheOccupazionali
  • Ricadute economiche (literal)
Http://www.cnr.it/ontology/cnr/brevetti.owl#settoreMerceologicoISTAT
  • Ricerca e sviluppo industriale (literal)
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  • STMicroelectronics S.r,l., Agrate Brianza (IT) (literal)
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  • Internazionale (literal)
Numero brevetto
  • US 6,887,760 B2 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • A process for forming a trench gate power MOS transistor includes forming an epitaxial layer having a first type of conductivity on a semiconductor substrate, and forming a body region having a second type of conductivity on the epitaxial layer. A gate trench is formed in the body region and in the epitaxial layer. The process further includes countersinking upper portions of the gate trench, and forming a gate dielectric layer on surfaces of the gate trench including the upper portions thereof. A gate conducting layer is formed on surfaces of the gate dielectric layer for defining a gate electrode. The gate conducting layer has a thickness that is insufficient for completely filling the gate trench so that a residual cavity remains therein. The residual cavity is filled with a filler layer. The gate conducting layer is removed from an upper surface of the body region while using the filler layer as a self-aligned mask. The edge surfaces of the gate conducting layer are oxidized. Source regions are formed by implanting dopants in the body region while using the oxidized edge surfaces as a selfaligned mask, and the implanted dopants are diffused in the body region. (literal)
Anno di deposito
  • 2005 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Messina (Italy) 2) Messina (Italy) (literal)
Titolo
  • Fabrication process of a trench gate power MOS transistor with scaled channel (literal)
Http://www.cnr.it/ontology/cnr/brevetti.owl#trasferimentoBrevetto
  • Trasferimento previsto a breve (literal)
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