摘要:
A method for manufacturing a nonvolatile semiconductor storage device, including: forming a first conductive layer so that it is sandwiched in an up-down direction by first insulating layers; forming a first hole so that it penetrates the first insulating layers and the first conductive layer; forming a first side wall insulating layer on a side wall facing the first hole; forming a sacrificing layer so that the sacrificing layer infills the first hole; forming a second conductive layer on an upper layer of the sacrificing layer so that the second conductive layer is sandwiched by the second insulating layer in an up-down direction; forming a second hole on a position which matches with the first hole so that the second hole penetrates the second insulating layer and the second conductive layer; forming a second side wall insulating layer on a side wall facing the second hole; removing the sacrificing layer after the formation of the second side wall insulating layer; and forming a semiconductor layer so that the semiconductor layer infills the first hole and the second hole after the removal of the sacrificing layer.
摘要:
A nonvolatile semiconductor storage device has a plurality of memory strings in which a plurality of electrically rewritable memory cells are connected in series. The memory string has a columnar semiconductor layer extending in a direction perpendicular to a substrate; a conductive layer formed so as to sandwich a charge storing layer in cooperation with the columnar semiconductor layer; and a metal layer formed so as to be in contact with the top face of the conductive layer.
摘要:
The invention provides a nonvolatile semiconductor memory device comprising a plurality of memory strings each including a plurality of electrically programmable memory cells connected in series. The memory string includes a semiconductor pillar, an insulator formed around the circumference of the semiconductor pillar, and first through nth electrodes to be turned into gate electrodes (n denotes a natural number equal to 2 or more) formed around the circumference of the insulator. It also includes interlayer electrodes formed in regions between the first through nth electrodes around the circumference of the insulator.
摘要:
Each of the memory strings includes: a first columnar semiconductor layer extending in a vertical direction to a substrate; a plurality of first conductive layers formed to sandwich an insulation layer with a charge trap layer and expand in a two-dimensional manner; a second columnar semiconductor layer formed in contact with the top surface of the first columnar semiconductor layer and extending in a vertical direction to the substrate; and a plurality of second conductive layers formed to sandwich an insulation layer with the second columnar semiconductor layer and formed in a stripe pattern extending in a first direction orthogonal to the vertical direction. Respective ends of the plurality of first conductive layers in the first direction are formed in a stepwise manner in relation to each other, entirety of the plurality of the second conductive layers are formed in an area immediately above the top layer of the first conductive layers, and the plurality of first conductive layers and the plurality of second conductive layers are covered with a protection insulation layer that is formed continuously with the plurality of first conductive layers and the second conductive layers.
摘要:
A non-volatile semiconductor storage device has a plurality of memory strings with a plurality of electrically rewritable memory cells connected in series. Each of the memory strings includes: a memory columnar semiconductor extending in a direction perpendicular to a substrate; a tunnel insulation layer contacting the memory columnar semiconductor; a charge accumulation layer contacting the tunnel insulation layer and accumulating charges; a block insulation layer contacting the charge accumulation layer; and a plurality of memory conductive layers contacting the block insulation layer. The lower portion of the charge accumulation layer is covered by the tunnel insulation layer and the block insulation layer.
摘要:
A transfer material capable of transferring a fine wiring pattern to a substrate reliably and easily. The transfer material includes at least three layers of a first metal layer as a carrier, a second metal layer that is transferred to the substrate as a wiring pattern, and a peel layer adhering the first and second metal layers releasably. On the surface portion of the first metal layer, a concave and convex portion corresponding to the wiring pattern is formed, and the peel layer and the second metal layer are formed on a region of the convex portions.
摘要:
A non-volatile semiconductor storage device has a plurality of memory strings with a plurality of electrically rewritable memory cells connected in series. Each of the memory strings comprises: a first columnar semiconductor layer extending in a vertical direction to a substrate; a charge accumulation layer formed around the first columnar semiconductor layer via a first insulation layer; and a first conductive layer formed around the charge accumulation layer via a second insulation layer. Each of the first conductive layers is formed to expand in a two-dimensional manner, and air gaps are formed between the first conductive layers located there above and there below.
摘要:
A semiconductor device has a substrate, a source region formed on the surface portion of the substrate, a first insulating layer formed on the substrate, a gate electrode formed on the first insulating layer, a second insulating layer formed on the gate electrode, a body section connected with the source region, penetrating through the first insulating layer, the gate electrode and the second insulating layer, and containing a void, a gate insulating film surrounding the body section, and formed between the body section and the gate electrode, and a drain region connected with the body section.
摘要:
A nonvolatile semiconductor memory device has a plurality of memory strings each including a plurality of electrically rewritable memory cells serially connected. The memory string includes a columnar semiconductor portion extending in the vertical direction from a substrate, a first charge storage layer formed adjacent to the columnar semiconductor portion and configured to accumulate charge, a first block insulator formed adjacent to the first charge storage layer, and a first conductor formed adjacent to the first block insulator.
摘要:
A semiconductor device has a substrate, a source region formed on the surface portion of the substrate, a first insulating layer formed on the substrate, a gate electrode formed on the first insulating layer, a second insulating layer formed on the gate electrode, a body section connected with the source region, penetrating through the first insulating layer, the gate electrode and the second insulating layer, and containing a void, a gate insulating film surrounding the body section, and formed between the body section and the gate electrode, and a drain region connected with the body section.