Abstract:
A stepped substack interlayer connector structure on a multilayer integrated circuit includes N steps on the substrate from a surface of the substrate at a first level to a surface of the substrate at a second level. A stack of active layers alternating with insulating layers on the substrate, including a plurality of substacks disposed in relation to the N step(s) to form respective contact regions in which the substacks are disposed at a common level. Interlayer connectors are formed by conductors in the respective regions connected to landing areas on active layers in each of the plurality of substacks. The maximum depth of the interlayer connectors is equal to, or less than, the thickness of one of the substacks.
Abstract:
A 3D semiconductor device is provided, comprising memory layers, a selection line, bit lines, strings, memory cells defined by the strings, the selection line, and the bit lines, wherein the memory cells are arranged in a plurality of rows having a first direction, and a stair contact structure including stair contacts and conductive lines, wherein the stair contacts are arranged in a plurality of columns having a fourth direction. The 3D semiconductor device satisfies the following condition: 1
Abstract:
A 3D semiconductor device is provided, comprising plural memory layers vertically stacked on a substrate and parallel to each other; plural selection lines disposed on the memory layers and parallel to each other; plural bit lines disposed on the selection lines, and the bit lines arranged in parallel to each other and in perpendicular to the selection lines; plural strings formed vertically to the memory layers and the selection lines, and the strings electrically connected to the corresponding selection lines; a plurality of cells respectively defined by the strings, the selection lines and the bit lines correspondingly, and the cells arranged in a plurality of rows and columns, wherein a column direction is parallel to the bit lines while a row direction is parallel to the selection lines. The adjacent cells in the same column are electrically connected to the different bit lines.
Abstract:
A memory device and a manufacturing method of the same are provided. The memory device includes a substrate, a 3D memory array, a periphery circuit, and a conductive connection structure. The 3D memory array and the periphery circuit are stacked on the substrate. The periphery circuit includes a patterned metal layer and a contact structure electrically connected to the patterned metal layer. The conductive connection structure is electrically connected to the patterned metal layer. The 3D memory array is electrically connected to the periphery circuit via the conductive connection structure.
Abstract:
A 3-D structure includes a stack of active layers at different depths has a plurality of contact landing areas on respective active layers within a contact area opening. A plurality of interlayer conductors, each includes a first portion within a contact area opening extending to a contact landing area, and a second portion in part outside the contact area opening above the top active layer. The first portion has a transverse dimension Y1 that is nominally equal to the transverse dimension of the contact area opening, and the second portion having a transverse dimension Y2 that is greater than the transverse dimension of the contact area opening. The active layers can be bit lines or word lines for a 3-D memory device, or other active layers in integrated circuits.
Abstract:
A method for manufacturing semiconductor device is disclosed. A substrate with a plurality of protruding strips formed vertically thereon is provided. A charging trapping layer is formed conformally on the protruding strips. A conductive layer is formed conformally on the charging trapping layer. A thin hard mask is conformally deposited on the conductive layer, wherein a plurality of trenches are formed between the thin hard mask on the protruding strips. A patterned photo resist is formed on the thin hard mask, wherein the patterned photo resist fills into the trenches. The thin hard mask is patterned according to the patterned photo resist to form a patterned hard mask layer and expose a portion of the conductive layer. The conductive layer is patterned for removing the exposed portion of the conductive layer to form a patterned conductive layer and expose a portion of the charging trapping layer.
Abstract:
A method for manufacturing semiconductor device is disclosed. A substrate with a conductive layer is provided, and a dummy layer is formed on the conductive layer. The dummy layer and at least a portion of the conductive layer are patterned to form several trenches. A first dielectric layer is formed to fill into the trenches so as to form several first dielectric elements in the trenches. The dummy layer is removed to expose parts of the first dielectric elements. A second dielectric layer is formed on the exposed parts of the first dielectric elements, and the second dielectric layer is patterned so that a spacer is formed at a lateral side of each exposed first dielectric element. The conductive layer is patterned by the spacers, so that a patterned conductive portion is formed at each lateral side of each first dielectric element.
Abstract:
A 3D stacking semiconductor device and a manufacturing method thereof are provided. The manufacturing method includes the following steps. N layers of stacking structures are provided. Each stacking structure includes a conductive layer and an insulating layer. A first photoresister layer is provided. The stacking structures are etched P−1 times by using the first photoresister layer as a mask. A second photoresister layer is provided. The stacking structures are etched Q−1 times by using the second photoresister layer as a mask. The first photoresister layer is trimmed along a first direction. The second photoresister layer is trimmed along a second direction. The first direction is different from the second direction. A plurality of contact points are arranged along the first and the second directions in a matrix. The included angle between the first direction and the second direction is an acute angle.
Abstract:
A three-dimensional stacked IC device has a stack of contact levels at an interconnect region. According to some examples of the present invention, it only requires a set of N etch masks to create up to and including 2N levels of interconnect contact regions at the stack of contact levels. According to some examples, 2x-1 contact levels are etched for each mask sequence number x, x being a sequence number for the masks so that for one mask x=1, for another mask x=2, and so forth through x=N. Methods create the interconnect contact regions aligned with landing areas at the contact levels.
Abstract:
A semiconductor structure and a manufacturing method of the same are provided. The semiconductor structure includes a substrate, a gate dielectric layer, a gate structure, a source conductive structure, a drain conductive structure, and a gate conductive structure. The substrate has a channel area. The gate dielectric layer is formed on the channel area, and the gate structure is formed on the gate dielectric layer. The source conductive structure and the drain conductive structure penetrate through the gate structure and are electrically connected to the substrate, and the source conductive structure and the drain conductive structure are electrically isolated from the gate structure. The gate conductive structure is formed on the gate structure. The source conductive structure and the drain conductive structure are separated by a distance which is equal to a length of the channel area.