摘要:
A semiconductor device includes the following elements. A semiconductor substrate has a device formation region. The device formation region is defined by first and second device isolation regions which extend in first and second directions, respectively. The device formation region has a first gate groove which extends in the second direction. A first gate insulating film is disposed in a lower portion of the first gate groove. A first gate electrode is disposed on the first gate insulating film. The first gate electrode is disposed in the lower portion of the first gate groove. A buried insulating film is disposed over the first gate electrode. The buried insulating film is disposed in an upper portion of the first gate groove.
摘要:
A semiconductor device includes the following elements. A semiconductor substrate has a device formation region. The device formation region is defined by first and second device isolation regions which extend in first and second directions, respectively. The device formation region has a first gate groove which extends in the second direction. A first gate insulating film is disposed in a lower portion of the first gate groove. A first gate electrode is disposed on the first gate insulating film. The first gate electrode is disposed in the lower portion of the first gate groove. A buried insulating film is disposed over the first gate electrode. The buried insulating film is disposed in an upper portion of the first gate groove.
摘要:
There are provided a method of manufacturing a semiconductor device which is capable of narrowing only the width of a Fin channel while maintaining the widths of source and drain regions, and a semiconductor device. The method of manufacturing a semiconductor device is a method of manufacturing a Fin type transistor, including: forming STI region 2 with use of mask layer 8 formed over silicon substrate 1 as a mask; narrowing mask layer 8 by wet etching to form narrowed mask layer 8a; forming stopper oxide film 16 over a surface of narrowed mask layer 8a, depositing polysilicon 17 over an entire surface and then forming anti-reflective film 18 and photoresist 19; forming an opening at photoresist 19 in a portion corresponding to a word line portion, removing anti-reflective film 18 and polysilicon 17 in that portion to expose narrowed mask layer 8a and then removing photoresist 19; and forming Fin channel 30 by etching portions of silicon substrate 1 which lie on opposite sides of and below narrowed mask layer 8a with narrowed mask layer 8a as a mask.
摘要:
A push-button switch has a plunger to be pressed so as to activate its main body supported by a base member. A cap serving as a pressing member is on an outer edge portion of the plunger. The outer periphery of the cap is surrounded by a frame part of a lens member made of a transparent resin material such that the light from a light source disposed near the center of the plunger is guided to the upper edge part of the frame part.
摘要:
A method of manufacturing a semiconductor device may include, but is not limited to the following processes. A first recess is formed in a semiconductor substrate to define an active region on the semiconductor substrate. The active region includes a protruding portion of the semiconductor substrate surrounded by the first recess. The protruding portion has a sloped side surface. A first insulating film that fills the first recess is formed. A gate recess is formed in the active region to form a thin film portion that upwardly extends. The thin film portion is positioned between the gate recess and the first insulating film. The thin film portion is a part of the protruding portion. An upper part of the thin film portion is removed by wet-etching to adjust a height of the thin film portion.
摘要:
There are provided a method of manufacturing a semiconductor device which is capable of narrowing only the width of a Fin channel while maintaining the widths of source and drain regions, and a semiconductor device. The method of manufacturing a semiconductor device is a method of manufacturing a Fin type transistor, including: forming STI region 2 with use of mask layer 8 formed over silicon substrate 1 as a mask; narrowing mask layer 8 by wet etching to form narrowed mask layer 8a; forming stopper oxide film 16 over a surface of narrowed mask layer 8a, depositing polysilicon 17 over an entire surface and then forming anti-reflective film 18 and photoresist 19; forming an opening at photoresist 19 in a portion corresponding to a word line portion, removing anti-reflective film 18 and polysilicon 17 in that portion to expose narrowed mask layer 8a and then removing photoresist 19; and forming Fin channel 30 by etching portions of silicon substrate 1 which lie on opposite sides of and below narrowed mask layer 8a with narrowed mask layer 8a as a mask.
摘要:
A method of manufacturing a semiconductor device may include, but is not limited to the following processes. A first recess is formed in a semiconductor substrate to define an active region on the semiconductor substrate. The active region includes a protruding portion of the semiconductor substrate surrounded by the first recess. The protruding portion has a sloped side surface. A first insulating film that fills the first recess is formed. A gate recess is formed in the active region to form a thin film portion that upwardly extends. The thin film portion is positioned between the gate recess and the first insulating film. The thin film portion is a part of the protruding portion. An upper part of the thin film portion is removed by wet-etching to adjust a height of the thin film portion.