摘要:
Embodiments described herein may be related to apparatuses, processes, systems, and/or techniques for forming a package that has a transistor layer with a front side metal interconnect layer and a back side metal contact and interconnect layer. In particular, back side metal contact and interconnect layers may be patterned before a transistor layer, or other device layer, is formed on the patterned layers and before front side metal interconnect layers are formed on the transistor layer. Other embodiments may be described and/or claimed.
摘要:
An integrated circuit includes a multilayer stack, and a plurality of layered conductors extending in the multilayer stack and into a conductor layer beneath the multilayer stack. The layered conductor has a bottom conductor layer in ohmic electrical contact with the conductive layer in a substrate, an intermediate conductive interface layer over the bottom conductor layer and lining a portion of sidewall of the corresponding trench, and a top conductor layer on the top conductive interface layer.
摘要:
According to an aspect of the present inventive concept there is provided a method for defining patterns for conductive paths in a dielectric layer, the method comprising: forming a mask layer above the dielectric layer, forming above the mask layer a set of [amorphous silicon] mandrels, each mandrel having a pair of side wall spacers, etching the mask layer, wherein the set of mandrels and the side wall spacers act as an etch mask, to form a first set of trenches in the mask layer, covering the set of mandrels with a metal oxide planarization layer, the metal oxide planarization layer filling the first set of trenches, etching back the metal oxide planarization layer to expose upper surfaces of the set of mandrels, removing the set of mandrels by etching, thereby forming trenches in the metal oxide planarization layer, said trenches extending between said pairs of side wall spacers, and etching the mask layer, wherein the metal oxide planarization layer acts as an etch mask, to form a second set of trenches in the mask layer.
摘要:
A method for blocking one or more portions of one or more trenches (700) during manufacture of a semiconductor structure, the method comprising: a. providing a substrate (100) comprising one or more trenches (700), and a dielectric material (130), b. providing a first overlayer (300), thereby filling the one or more trenches (700); c. covering a first area of the substrate (100), situated directly above the one or more portions and corresponding thereto, with a block pattern (400) of the condensed photo-condensable metal oxide; d. covering the block pattern and the second area with a second overlayer (500); e. providing a masking layer (600) over the second overlayer (500), the masking layer (600) having a via pattern (800); and f. transferring the via pattern (800) and the other portion of the at least one of the trenches (700) into the dielectric material (130).
摘要:
Methods are disclosed, such as those involving increasing the density of isolated features in an integrated circuit. Also disclosed are structures associated with the methods. In one or more embodiments, contacts are formed on pitch with other structures, such as conductive interconnects. The interconnects may be formed by pitch multiplication. To form the contacts, in some embodiments, a pattern corresponding to some of the contacts is formed in a selectively definable material such as photoresist. The features in the selectively definable material are trimmed to desired dimensions. Spacer material is blanket deposited over the features in the selectively definable material and the deposited material is then etched to leave spacers on sides of the features. The selectively definable material is removed to leave a mask defined by the spacer material. The pattern defined by the spacer material may be transferred to a substrate, to form on pitch contacts. In some embodiments, the on pitch contacts may be used to electrically contact conductive interconnects in the substrate.
摘要:
Inherently selective precursors for deposition of second or third row transition metal (e.g., tungsten or ruthenium) thin films are described. In an example, a ligand framework for second or third row transition metal complex formation includes a lithium complex.
摘要:
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.
摘要:
A method for forming a pattern for an integrated circuit, comprising the steps of: a. providing a hardmask layer (3), b. overlaying the hard mask layer (3) with a set of parallel material lines (41) delimiting gaps (6) therebetween, c. providing a spacer layer (5) following the shape of the material layer (4), d. removing a top portion (5t) of the spacer layer (5), thereby forming spacer lines (5I) alternatively separated by material lines (4I) and by gaps (6), e. providing a blocking element (7b) in a portion of a gap (6), f. etching selectively the hard mask layer (3) by using the material layer (4), the spacer lines (5I) and the blocking element (7b) as a mask, thereby providing a first set of parallel trenches (8) in the hardmask layer (3), wherein a trench (8a) has a blocked portion (3b), and g. selectively removing the blocking element (7b).
摘要:
Techniques related to multi-pass patterning lithography, device structures, and devices formed using such techniques are discussed. Such techniques include exposing a resist layer disposed over a grating pattern with non-reflecting radiation to generate an enhanced exposure portion within a trench of the grating pattern and developing the resist layer to form a pattern layer having a pattern structure within the trench of the grating pattern.
摘要:
Lithographic apparatuses suitable for, and methodologies involving, complementary e-beam lithography (CEBL) are described. In an example, a column for an e-beam direct write lithography tool includes a first blanker aperture array (BAA) including a staggered array of openings having a pitch along an array direction. The array direction is orthogonal to a scan direction. Each opening has a first dimension in the array direction. The column also includes a second BAA including a staggered array of openings having the pitch along the array direction. Each opening has a second dimension in the array direction, the second dimension greater than the first dimension.