摘要:
First and second gate insulating films are formed so as to cover at least the upper corner of first and second fin-shaped semiconductor regions. The radius of curvature r1′ of the upper corner of the first fin-shaped semiconductor region located outside the first gate insulating film is greater than the radius of curvature r1 of the upper corner of the first fin-shaped semiconductor region located under the first gate insulating film and is less than or equal to 2×r1. The radius of curvature r2′ of the upper corner of the second fin-shaped semiconductor region located outside the second gate insulating film is greater than the radius of curvature r2 of the upper corner of the second fin-shaped semiconductor region located under the second gate insulating film and is less than or equal to 2×r2.
摘要:
A semiconductor device includes: a first semiconductor region formed on a substrate and having an upper surface and a side surface; a first impurity region of a first conductivity type formed in an upper portion of the first semiconductor region; a second impurity region of a first conductivity type formed in a side portion of the first semiconductor region; and a gate insulating film formed so as to cover at least a side surface and an upper corner of a predetermined portion of the first semiconductor region. A radius of curvature r′ of an upper corner of a portion of the first semiconductor region located outside the gate insulating film is greater than a radius of curvature r of an upper corner of a portion of the first semiconductor region located under the gate insulating film and is less than or equal to 2r.
摘要:
A semiconductor device includes: a first semiconductor region formed on a substrate and having an upper surface and a side surface; a first impurity region of a first conductivity type formed in an upper portion of the first semiconductor region; a second impurity region of a first conductivity type formed in a side portion of the first semiconductor region; and a gate insulating film formed so as to cover at least a side surface and an upper corner of a predetermined portion of the first semiconductor region. A radius of curvature r′ of an upper corner of a portion of the first semiconductor region located outside the gate insulating film is greater than a radius of curvature r of an upper corner of a portion of the first semiconductor region located under the gate insulating film and is less than or equal to 2r.
摘要:
A semiconductor device includes: a first semiconductor region formed on a substrate and having an upper surface and a side surface; a first impurity region of a first conductivity type formed in an upper portion of the first semiconductor region; a second impurity region of a first conductivity type formed in a side portion of the first semiconductor region; and a gate insulating film formed so as to cover at least a side surface and an upper corner of a predetermined portion of the first semiconductor region. A radius of curvature r′ of an upper corner of a portion of the first semiconductor region located outside the gate insulating film is greater than a radius of curvature r of an upper corner of a portion of the first semiconductor region located under the gate insulating film and is less than or equal to 2r.
摘要:
First and second gate insulating films are formed so as to cover at least the upper corner of first and second fin-shaped semiconductor regions. The radius of curvature r1′ of the upper corner of the first fin-shaped semiconductor region located outside the first gate insulating film is greater than the radius of curvature r1 of the upper corner of the first fin-shaped semiconductor region located under the first gate insulating film and is less than or equal to 2×r1. The radius of curvature r2′ of the upper corner of the second fin-shaped semiconductor region located outside the second gate insulating film is greater than the radius of curvature r2 of the upper corner of the second fin-shaped semiconductor region located under the second gate insulating film and is less than or equal to 2×r2.
摘要:
First and second gate insulating films are formed so as to cover at least the upper corner of first and second fin-shaped semiconductor regions. The radius of curvature r1′ of the upper corner of the first fin-shaped semiconductor region located outside the first gate insulating film is greater than the radius of curvature r1 of the upper corner of the first fin-shaped semiconductor region located under the first gate insulating film and is less than or equal to 2×r1. The radius of curvature r2′ of the upper corner of the second fin-shaped semiconductor region located outside the second gate insulating film is greater than the radius of curvature r2 of the upper corner of the second fin-shaped semiconductor region located under the second gate insulating film and is less than or equal to 2×r2.
摘要:
First and second gate insulating films are formed so as to cover at least the upper corner of first and second fin-shaped semiconductor regions. The radius of curvature r1′ of the upper corner of the first fin-shaped semiconductor region located outside the first gate insulating film is greater than the radius of curvature r1 of the upper corner of the first fin-shaped semiconductor region located under the first gate insulating film and is less than or equal to 2×r1. The radius of curvature r2′ of the upper corner of the second fin-shaped semiconductor region located outside the second gate insulating film is greater than the radius of curvature r2 of the upper corner of the second fin-shaped semiconductor region located under the second gate insulating film and is less than or equal to 2×r2.
摘要:
An object is to provide a semiconductor device in which uniform properties are intended and high yields are provided. Process steps are provided in which variations are adjusted in doping and annealing process steps that are subsequent process steps so as to cancel in-plane variations in a substrate caused by dry etching to finally as well provide excellent in-plane consistency in a substrate.
摘要:
An object is to provide a semiconductor device in which uniform properties are intended and high yields are provided. Process steps are provided in which variations are adjusted in doping and annealing process steps that are subsequent process steps so as to cancel in-plane variations in a substrate caused by dry etching to finally as well provide excellent in-plane consistency in a substrate.
摘要:
A semiconductor region having an upper surface and a side surface is formed on a substrate. A first impurity region is formed in an upper portion of the semiconductor region. A second impurity region is formed in a side portion of the semiconductor region. The resistivity of the second impurity region is substantially equal to or smaller than that of the first impurity region.