Abstract:
A patterning method and a patterned material layer are provided. After providing a substrate including a material layer, a hard mask layer including trenches extending in a first direction is formed over the material layer. A filling material layer is formed on the hard mask layer to cover the hard mask layer and fills in the trenches. A mask layer in a grid pattern is formed on the filling material layer. The mask layer includes first grid lines extending in the first direction and second grid lines extending in a second direction, and each of the underlying trench is located between two most adjacent first grid lines. The material layer is etched with the mask layer as an etching mask to form a patterned material layer including a plurality of first holes and a plurality of second holes.
Abstract:
A wafer-level coating method and a coating system are provided. A strip-shaped sprayer is disposed above the wafer, and a length of the strip-shaped sprayer is larger than a diameter of the wafer. Then, a coating process is performed by spraying a material from the strip-shaped sprayer to form a material layer covering a top surface of the wafer and moving the strip-shaped sprayer relative to the wafer in a direction vertical to a length direction of the strip-shaped sprayer for at least a distance equal to or larger than the diameter of the wafer. Next, the moving strip-shaped sprayer and the spraying of the material are stopped after the material layer is formed.
Abstract:
A method for forming separate narrow lines is described. A target layer is formed over a substrate. Base patterns are formed over the target layer. Target line patterns and connection patterns between the ends of the target line patterns are formed as spacers on the sidewalls of the base patterns. The base patterns are removed. The target line patterns and the connection patterns are transferred to the target layer to form target lines and connection segments between the ends of the target lines. At least a portion of each connection segment is removed to disconnect the target lines while other area of the substrate is subjected to a patterned removal treatment.
Abstract:
An overlay mark includes a previous layer mark and a current layer mark. The previous layer mark includes a plurality of first work zones. Each first working zone includes a first sub-region and a second sub-region, wherein the first sub-region is closer to a center point of the previous layer mark than the second sub-region. The previous layer mark includes a first mark and an auxiliary mark respectively in the first sub-region and the second sub-region of each first working zone. The current layer mark includes a plurality of second working zones. Each second working zone includes a first sub-region and a second sub-region. The current layer mark includes a second mark disposed in the second sub-region of each second working zone. The overlay mark may be applied in the process of manufacturing a 3D NAND flash memory with high capacity and high performance.
Abstract:
A semiconductor structure including a substrate and a pad structure is provided. The pad structure is located on the substrate. The pad structure includes material pairs and pads. The material pairs are stacked on the substrate to form a stair step structure. Each of the material pairs includes a conductive layer and a dielectric layer located on the conductive layer. Each of the pads includes a conductive pillar and a pad layer. The conductive pillar is embedded in the material pair and is connected to the conductive layer of the material pair. The pad layer is located on the conductive pillar.
Abstract:
A circuit structure comprises a plurality of first conducting lines extending in a first direction, the first conducting lines having a first pitch in a second direction orthogonal to the first direction; a plurality of linking lines extending in the second direction, the linking lines having a second pitch in the first direction, the second pitch being greater than the first pitch; and a plurality of connection structures connecting respective first conducting lines for current flow to respective linking lines, the connection structures each including a plurality of segments extending in the first direction, segments in the plurality of segments having a transition pitch in the second direction relative to adjacent segments in the plurality of segments greater than or equal to the first pitch, and less than the second pitch.
Abstract:
An edge structure for multiple layers of devices including stacked multiple unit layers includes first and second stair structures. The first stair structure is at a first direction of the devices where device contacts are formed, including first edge portions of the unit layers at the first direction, of which the borders gradually retreat with increase of level height. The elevation angle from the border of the first edge portion of the bottom unit layer to that of the top one is a first angle. The second stair structure includes second edge portions of the unit layers at a second direction. The variation of border position of the second edge portion with increase of level height is irregular. The elevation angle from the border of the second edge portion of the bottom unit layer to that of the top one is a second angle larger than the first angle.
Abstract:
Multilevel circuitry such as a a 3D memory array, has a set of contact regions arranged around a perimeter of a multilevel region, in which connection is made to circuit elements in a number W levels. Each of the contact regions has a number of steps having landing areas thereon, including steps on up to a number M levels, where the number M can be much less than W. A combination of contact regions provides landing areas on all of the W levels, each of the contact regions in the combination having landing areas on different subsets of the W levels. A method of forming the device uses an etch-trim process to form M levels in all of the contact regions, and one or more anisotropic etches in some of the contact regions.
Abstract:
A structure of a patterned material layer including separate patterns arranged in rows and columns is described. The separate patterns in at least one row including the outmost row each have a larger dimension in the column direction than the separate patterns in the other rows. The separate patterns in at least one column including the outmost column each have a larger dimension in the row direction than the separate patterns in the other columns.
Abstract:
A method of forming a semiconductor device is disclosed. A substrate having a first area and a second area is provided. A target layer and a hard mask layer are sequentially formed on the substrate in the first area and in the second area. Transfer patterns are formed in a spacer form on the hard mask layer in the first area. A photoresist layer is formed directly on the hard mask layer, and covers the transfer patterns and the hard mask layer in the first area and in the second area. The photoresist layer in the first area is removed. The hard mask layer is patterned by using the transfer patterns as a mask.