摘要:
A terpolymer with chemically amplified (acid labile) moieties and organosilicon moieties suitable for use as the binder resin for a photoimageable resist photoresist composition suitable for use in 193 nm photolithographic processes.The terpolymers have the following structural units: ##STR1## where R is a methyl or hydroxyethyl group, R.sup.1 is a hydrogen atom, a methyl group or a --CH.sub.2 COOCH.sub.3 group and R.sup.2 and R.sup.3 are each independently a hydrogen atom or a methyl group.
摘要:
A method of forming a semiconductor device having a substrate, an active region and an inactive region includes: forming a hardmask layer over the substrate; transferring a first pattern into the hardmask layer in the active region of the semiconductor device; forming one or more fills in the inactive region; forming a cut-away hole within, covering, or partially covering, the one or more fills to expose a portion of the hardmask layer, the exposed portion being within the one or more fills; and exposing the hardmask layer to an etchant to divide the first pattern into a second pattern including at least two separate elements.
摘要:
A plurality of reticles for printing structures in the same lithography level includes an alignment structure pattern within a same relative location in each reticle. Each set of process segmentations in a grating has a reticle segmentation pitch, which is common across all gratings in the plurality of reticles. Within each pair of alignment structure patterns that occupy the same relative location in any two of the plurality of reticles, the process segmentations in one reticle are shifted relative to the process segmentations in the other reticle by a fraction of a reticle segmentation pitch. After printing all patterns in the plurality of reticles, a composite printed process segmentation structure on the substrate includes printed segmentation structures that are spaced by 1/n times the printed segmentation pitch. The pattern for the next level can be aligned to the composite printed process segmentation structure in a single alignment operation.
摘要:
A wafer includes an active region and a kerf region surrounding at least a portion of the active region. The wafer also includes a target region having a rectangular shape with a width and a length greater than the width, the target region including one or more target patterns, at least one of the target patterns being formed by two sub-patterns disposed at opposing corners of a target rectangle disposable within the target region.
摘要:
A wafer includes an active region and a kerf region surrounding at least a portion of the active region. The wafer also includes a target region having a rectangular shape with a width and a length greater than the width, the target region including one or more target patterns, at least one of the target patterns being formed by two sub-patterns disposed at opposing corners of a target rectangle disposable within the target region.
摘要:
Methods of forming line ends and a related memory cell including the line ends are disclosed. In one embodiment, the method includes forming a first device element and a second device element separated from the first device element by a space; and forming a first line extending from the first device element, the first line including a bulbous line end over the space and distanced from the first device element, and a second line extending from the second device element, the second line including a bulbous line end over the space and distanced from the second device element.
摘要:
An underlayer to be patterned with a composite pattern is formed on a substrate. The composite pattern is decomposed into a first pattern and a second pattern, each having reduced complexity than the composite pattern. A hard mask layer is formed directly on the underlying layer. A first photoresist is applied over the hard mask layer and lithographically patterned with the first pattern, which is transferred into the hard mask layer by a first etch. A second photoresist is applied over the hard mask layer. The second photoresist is patterned with the second pattern to expose portions of the underlying layer. The exposed portions of the underlying layer are etched employing the second photoresist and the hard mask layer, which contains the first pattern so that the composite pattern is transferred into the underlying layer.
摘要:
A method of reducing parametric variation in an integrated circuit (IC) chip and an IC chip with reduced parametric variation. The method includes: on a first wafer having a first arrangement of chips, each IC chip divided into a second arrangement of regions, measuring a test device parameter of test devices distributed in different regions; and on a second wafer having the first arrangement of IC chips and the second arrangement of regions, adjusting a functional device parameter of identically designed field effect transistors within one or more regions of all IC chips of the second wafer based on a values of the test device parameter measured on test devices in regions of the IC chip of the first wafer by a non-uniform adjustment of physical or metallurgical polysilicon gate widths of the identically designed field effect transistors from region to region within each IC chip.
摘要:
A method of controlling one or more critical dimension (CD) features, dependent upon at least a first and a second processing parameter, with a single metrology step, while still enabling decoupled feedback to the first and the second processing parameter, includes an initial process characterization; producing a production piece; a single metrology step to determine the critical dimensions of the produced features; solving a system of equations simultaneously for individual feedback correction values for the first and second processing parameters; and applying the individual feedback correction values to their respective processing parameters.
摘要:
A resist pattern on a substrate is formed using an imageable resist layer on the surface of a substrate. The imageable resist layer comprises a silicon-incorporated polystyrene-diene block copolymer having a silicon weight percent of at least about 5 percent. The imageable layer is prepared by reacting a polystyrene-diene block copolymer with a silicon-containing compound in the presence of a platinum catalyst. In a preferred embodiment, the poly(styrene)-diene block copolymers are hydrosilylated by hydrosiloxanes using a platinum-divinyl tetramethyl disiloxane catalyst.