摘要:
A semiconductor device includes a semiconductor substrate with a trench; a capacitor; a collar oxide film arranged on a portion of a side of the trench above the capacitor; a storage node arranged on a side of the collar oxide film in an upper portion of the trench and electrically connected to a storage electrode of the capacitor; a select transistor provided on a surface of the semiconductor substrate and having a source region in contact with the trench; a spacer covering a side of the source region; and a surface strap contact arranged upon the spacers, the source region and the storage node.
摘要:
A semiconductor device includes a semiconductor substrate with a trench; a capacitor; a collar oxide film arranged on a portion of a side of the trench above the capacitor; a storage node arranged on a side of the collar oxide film in an upper portion of the trench and electrically connected to a storage electrode of the capacitor; a select transistor provided on a surface of the semiconductor substrate and having a source region in contact with the trench; a spacer covering a side of the source region; and a surface strap contact arranged upon the spacers, the source region and the storage node.
摘要:
The semiconductor memory device of the present invention includes a plurality of memory strings having a plurality of electrically reprogrammable memory cells connected in series, the memory strings having a column shaped semiconductor, a first insulation film formed around the column shaped semiconductor, a charge accumulation layer formed around the first insulation film, a second insulation film formed around the charge accumulation film and a plurality of electrodes formed around the second insulation film, a bit line connected to one end of the memory strings via a plurality of selection transistors, and a conducting layer extending in two dimensions and in which the plurality of electrodes of the memory strings and the plurality of electrodes of different memory strings are shared respectively, wherein each end part of the conducting layer is formed in step shapes in a direction parallel with the bit line.
摘要:
A non-volatile semiconductor storage device 10 has a plurality of memory strings 100 with a plurality of electrically rewritable memory transistors MTr1-MTr4 connected in series. The memory string 100 includes a columnar semiconductor CLmn extending in a direction perpendicular to a substrate, a plurality of charge accumulation layers formed around the columnar semiconductor CLmn via insulating films, and selection gate lines on the drain side SGD contacting the columnar semiconductor to configure transistors. The selection gate lines on the drain side SGD have lower selection gate lines on the drain side SGDd, each of which is arranged with an interval with a certain pitch, and upper selection gate lines on the drain side SGDu located on a higher layer than the lower selection gate lines on the drain side SGDd, each of which is arranged on gaps between the lower selection gate lines on the drain side SGDd.
摘要:
A non-volatile semiconductor storage device 10 has a plurality of memory strings 100 with a plurality of electrically rewritable memory transistors MTr1-MTr4 connected in series. The memory string 100 includes a columnar semiconductor CLmn extending in a direction perpendicular to a substrate, a plurality of charge accumulation layers formed around the columnar semiconductor CLmn via insulating films, and selection gate lines on the drain side SGD contacting the columnar semiconductor to configure transistors. The selection gate lines on the drain side SGD have lower selection gate lines on the drain side SGDd, each of which is arranged with an interval with a certain pitch, and upper selection gate lines on the drain side SGDu located on a higher layer than the lower selection gate lines on the drain side SGDd, each of which is arranged on gaps between the lower selection gate lines on the drain side SGDd.
摘要:
A semiconductor memory includes a semiconductor substrate; a capacitor arranged in a lower portion of the trench; a collar oxide film arranged on a side of the trench above the capacitor and having an upper collar member and a lower collar member, the upper collar member being thinner than the lower collar member so as to provide a height difference therebetween; a storage node arranged on a side of the collar oxide film; a select transistor provided on the semiconductor substrate and having a doped layer in contact with the collar oxide film; and a conductor portion arranged upon the storage node and the doped layer.
摘要:
A nonvolatile semiconductor memory device includes: a stacked body in which insulating films and electrode films are alternately stacked; selection gate electrodes provided on the stacked body; bit lines provided on the selection gate electrodes; semiconductor pillars; connective members separated from one another; and a charge storage layer provided between the electrode film and the semiconductor pillar. One of the connective members is connected between a lower part of one of the semiconductor pillars and a lower part of another of the semiconductor pillars. The one of the semiconductor pillars passes through one of the selection gate electrodes and is connected to one of the bit lines, and the another of the semiconductor pillars passes through another of the selection gate electrodes and is connected to another of the bit lines.
摘要:
According to one embodiment, a nonvolatile semiconductor memory device includes first and second stacked structural bodies, first and second semiconductor pillars, a memory unit connection portion, a selection unit stacked structural body, first and second selection unit semiconductor pillars, a selection unit connection portion, and first to fifth interconnections. The semiconductor pillars pierce the stacked structural bodies. The first and second interconnections are connected to the first and second semiconductor pillars, respectively. The memory unit connection portion connects the first and second semiconductor pillars. The selection unit semiconductor pillars pierce the selection unit stacked structural body. The third and fourth interconnections are connected to the first and second selection unit semiconductor pillars, respectively. The selection unit connection portion connects the first and second selection unit semiconductor pillars. The fifth interconnection is connected to the third interconnection on a side opposite to the selection unit stacked structural body.
摘要:
According to one embodiment, a semiconductor memory device includes a base, a stacked body, a memory film, a channel body, an interconnection, and a contact plug. The base includes a substrate and a peripheral circuit formed on a surface of the substrate. The stacked body includes a plurality of conductive layers and a plurality of insulating layers alternately stacked above the base. The memory film is provided on an inner wall of a memory hole punched through the stacked body to reach a lowermost layer of the conductive layers. The memory film includes a charge storage film. The interconnection is provided below the stacked body. The interconnection electrically connects the lowermost layer of the conductive layers in an interconnection region laid out on an outside of a memory cell array region and the peripheral circuit. The contact plug pierces the stacked body in the interconnection region to reach the lowermost layer of the conductive layers in the interconnection region.
摘要:
According to one embodiment, a nonvolatile semiconductor memory device includes a first and a second stacked structure, a first and a second semiconductor pillar, a semiconductor connection portion, a first and a second connection portion conductive layer, a first and a second pillar portion memory layer, a first and a second connection portion memory layer. The first and second stacked structures include electrode films and inter-electrode insulating films alternately stacked in a first direction. The second stacked structure is adjacent to the first stacked structure. The first and second semiconductor pillars pierce the first and second stacked structures, respectively. The semiconductor connection portion connects the first and second semiconductor pillars. The first and second pillar portion memory layers are provided between the electrode films and the semiconductor pillar. The first and second connection portion memory layers are provided between the connection portion conductive layers and the semiconductor connection portion.