Method of forming a controlled and uniform lightly phosphorous doped silicon film

Method of forming a controlled and uniform lightly phosphorous doped silicon film

Method of forming a lightly phosphorous doped silicon film. A substrate is provided. A process gas comprising a phosphorous source gas and a disilane gas is used to form a lightly phosphorous doped silicon film on the substrate. The diluted phosphorous source gas has a phosphorous concentration of 1...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHEN AIHUA, PANAYIL SHEEBA J, WANG SHULIN, LUO LEE, TAO XIANZHI, QUENTIN CHRISTOPHER G, FU LI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CHEMICAL SURFACE TREATMENT
CHEMISTRY
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
DIFFUSION TREATMENT OF METALLIC MATERIAL
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
METALLURGY
SEMICONDUCTOR DEVICES
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:Method of forming a lightly phosphorous doped silicon film. A substrate is provided. A process gas comprising a phosphorous source gas and a disilane gas is used to form a lightly phosphorous doped silicon film on the substrate. The diluted phosphorous source gas has a phosphorous concentration of 1%. The phosphorous source gas and the disilane gas have a flow ratio less than 1:100. The lightly phosphorous doped silicon film has a phosphorous doping concentration less than 1x10 atoms/cm .