Abstract:
A method of fabricating a gate dielectric layer, including: providing a substrate (100); forming a silicon dioxide layer (110) on a top surface of the substrate (105); performing a plasma nitridation in a reducing atmosphere to convert the silicon dioxide layer into a silicon oxynitride layer (110A). The dielectric layer so formed may be used in the fabrication of MOSFETs (145).
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor structure including a thin gate dielectric in which nitrogen is selectively enriched. SOLUTION: Although an introducing amount of nitrogen is sufficient to cause gate leakage and the infiltration of a dopant to be reduced, or to prevent these, the amount does not decrease device performance much. Nitrogen lower than that of a gate dielectric of nFET in density is introduced into a gate dielectric of a pFET. Nitriding can be selectively carried out by rapid thermal nitridation (RTN), furnace nitriding, remote plasma nitriding (RPN), decoupled plasma nitriding (DPN), and wale implantation or polysilicon implantation, or by various techniques, including combinations of these methods. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a highly reliable gate insulation film with respect to a gate insulation film forming method by silicon nitride oxide. SOLUTION: The gate insulation film forming method includes a process for preparing a substrate, a process for forming a silicon dioxide layer on the top surface of the substrate, a process for exposing the silicon dioxide layer to a plasma-nitride forming process in order to change the silicon dioxide layer into a silicon nitride oxide layer, and a process for subjecting the silicon nitride oxide layer to spike-like rapid annealing. COPYRIGHT: (C)2004,JPO
Abstract:
A method of fabricating a gate dielectric layer, including: providing a substrate (100); forming a silicon dioxide layer (110) on a top surface of the substrate (105); performing a plasma nitridation in a reducing atmosphere to convert the silicon dioxide layer into a silicon oxynitride layer (110A). The dielectric layer so formed may be used in the fabrication of MOSFETs (145).