摘要:
According to one embodiment, a method of fabricating a semiconductor device includes forming a first insulator on a semiconductor substrate, forming a first groove on the insulator to expose at least a part of the semiconductor substrate at a bottom of the first groove, forming a first embedding film including at least germanium in the groove, melting the first embedding film by heat treatment, and crystallizing the first embedding film being melted to a single-crystalline film using the semiconductor substrate as a seed.
摘要:
A nonvolatile semiconductor memory device including a semiconductor substrate having a semiconductor layer and an insulating material provided on a surface thereof, a surface of the insulating material is covered with the semiconductor layer, and a plurality of memory cells provided on the semiconductor layer, the memory cells includes a first dielectric film provided by covering the surface of the semiconductor layer, a plurality of charge storage layers provided above the insulating material and on the first dielectric film, a plurality of second dielectric films provided on the each charge storage layer, a plurality of conductive layers provided on the each second dielectric film, and an impurity diffusion layer formed partially or overall at least above the insulating material and inside the semiconductor layer and at least a portion of a bottom end thereof being provided by an upper surface of the insulating material.
摘要:
A method of manufacturing a semiconductor storage device includes providing an opening portion in a plurality of positions in an insulating film formed on a silicon substrate, and thereafter forming an amorphous silicon film on the insulating film, in which the opening portions are formed, and in the opening portions. Then, trenches are formed to divide the amorphous silicon film, in the vicinity of a midpoint between adjacent opening portions, into a portion on one opening portion side and a portion on the other opening portion side. Next, the amorphous silicon film, in which the trenches are formed, is annealed and subjected to solid-phase crystallization to form a single crystal with the opening portions used as seeds, and thereby a silicon single-crystal layer is formed. Then, a memory cell array is formed on the silicon single-crystal layer.
摘要:
A semiconductor device including a first semiconductor layer formed on a semiconductor substrate, a second semiconductor layer surrounding the first semiconductor layer, the second semiconductor layer being formed on the semiconductor substrate with one of an insulating film and a cavity, and a third semiconductor layer surrounding the second semiconductor layer, the third semiconductor layer being formed on the semiconductor substrate.
摘要:
A semiconductor device comprises a semiconductor substrate, a MOSFET including a double gate structure provided on the semiconductor substrate, and an isolation region for isolating the MOSFET from other elements comprising a trench provided on the surface of the semiconductor substrate and an insulator provided in the trench, a part of the isolation region in the trench around the MOSFET having a bottom deeper than other part of the isolation region.
摘要:
A method is provided with: arranging nitrogen atoms on a surface of a silicon substrate; performing a heat treatment in a hydrogen atmosphere so that the nitrogen atoms and silicon atoms existing on the surface of the silicon substrate are brought into a three-coordinate bond state; and forming a silicon oxide film on the silicon substrate with the three-coordinate bond state of nitrogen atoms and the silicon atoms being maintained.
摘要:
To change a plurality of trenches to one flat empty space by two-dimensionally forming the trenches on the surface of a semiconductor substrate and then applying heat treatment to the semiconductor substrate.
摘要:
A method of manufacturing a semiconductor device substrate is disclosed, which comprises forming a mask layer patterned on a semiconductor layer insulated from a surface of a semiconductor substrate by an electrically insulating layer, etching the semiconductor layer according to the pattern of the mask layer to form a trench leading to the insulating layer, etching a protective layer deposited thinner on the semiconductor substrate than the thickness of the insulating layer to form a sidewall protective film which covers a side surface of the trench, etching the insulating layer from a bottom surface of the trench to the semiconductor substrate; and growing a single-crystalline layer from the surface of the semiconductor substrate exposed as a result of etching the insulating layer.
摘要:
A semiconductor chip includes a base substrate, a bulk device region having a bulk growth layer on a part of the base substrate, an SOI device region having a buried insulator on the base substrate and a silicon layer on the buried insulator, and a boundary layer located at the boundary between the bulk device region and the SOI device region. The bulk device region has a first device-fabrication surface in which a bulk device is positioned on the bulk growth layer. The SOI device region has a second device-fabrication surface in which an SOI device is positioned on the silicon layer. The first and second device-fabrication surfaces are positioned at a substantially uniform level.
摘要:
A method of manufacturing a semiconductor device substrate includes forming a mask layer pattern on a semiconductor layer insulated from a surface of a semiconductor substrate by an electrically insulating layer, etching the semiconductor layer according to the pattern of the mask layer to form a trench leading to the insulating layer, etching a protective layer on the semiconductor substrate having a thickness less than the thickness of the insulating layer to form a sidewall protective film which covers a side surface of the trench, etching the insulating layer from a bottom surface of the trench to the semiconductor substrate; and growing a single-crystalline layer from the surface of the semiconductor substrate exposed as a result of etching the insulating layer.