Correlating macroscopic and nanoscale electrical modifications of SiO2/4H-SiC interfaces upon post-oxidation-annealing in N2O and POCl3 (Articolo in rivista)

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Label
  • Correlating macroscopic and nanoscale electrical modifications of SiO2/4H-SiC interfaces upon post-oxidation-annealing in N2O and POCl3 (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.4766175 (literal)
Alternative label
  • Swanson LK, Fiorenza P, Giannazzo F, Frazzetto A, Roccaforte F (2012)
    Correlating macroscopic and nanoscale electrical modifications of SiO2/4H-SiC interfaces upon post-oxidation-annealing in N2O and POCl3
    in Applied physics letters (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Swanson LK, Fiorenza P, Giannazzo F, Frazzetto A, Roccaforte F (literal)
Pagina inizio
  • 193501-1 (literal)
Pagina fine
  • 193501-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://apl.aip.org/resource/1/applab/v101/i19/p193501_s1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 101 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 19 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consiglio Nazionale delle Ricerche - Istituto per la Microelettronica e Microsistemi (CNR-IMM) Scuola Superiore di Catania - Universit?a degli Studi di Catania STMicroelectronics, Catania, Italy (literal)
Titolo
  • Correlating macroscopic and nanoscale electrical modifications of SiO2/4H-SiC interfaces upon post-oxidation-annealing in N2O and POCl3 (literal)
Abstract
  • This letter reports on the electrical properties of SiO2/4H-SiC interfaces after post-oxidation annealing (POA) in N2O and POCl3. The notably higher channel mobility measured in 4H-SiC MOSFETs subjected to POA in POCl3 was ascribed both to a reduction of the interface traps density and to an increase of donor concentration incorporated in SiC. Scanning spreading resistance microscopy on a SiC surface directly exposed to POA revealed that the incorporation of P-related shallow donors upon POA in POCl3 is more efficient than N-shallow donors incorporation during N2O treatments which subsequently explains the significantly enhanced channel conductivity of the MOSFETs. (literal)
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