摘要:
A method for fabricating a semiconductor device includes forming a first dielectric structure over a second region of a substrate to expose a first region of the substrate, forming a barrier layer over an entire surface including the first dielectric structure, forming a second dielectric structure over the barrier layer in the first region, forming first open parts and second open parts in the first region and the second region, respectively, by etching the second dielectric structure, the barrier layer and the first dielectric structure, forming first conductive patterns filled in the first open parts and second conductive patterns filled in the second open parts, forming a protective layer to cover the second region, and removing the second dielectric structure.
摘要:
A method for fabricating a semiconductor device includes forming a first dielectric structure over a second region of a substrate to expose a first region of the substrate, forming a barrier layer over an entire surface including the first dielectric structure, forming a second dielectric structure over the barrier layer in the first region, forming first open parts and second open parts in the first region and the second region, respectively, by etching the second dielectric structure, the barrier layer and the first dielectric structure, forming first conductive patterns filled in the first open parts and second conductive patterns filled in the second open parts, forming a protective layer to cover the second region, and removing the second dielectric structure.
摘要:
A method for fabricating a semiconductor device improves the variation in critical dimensions of neighboring patterns when employing a negative SPT process. The method includes forming an etch stop layer on an etch target layer, forming a first hard mask pattern on the etch stop layer, forming a spacer pattern on a sidewall of the first hard mask pattern, forming a second hard mask layer on an entire surface of a resultant structure including the spacer pattern, forming a second hard mask pattern by etching the second hard mask layer up to a height of the first hard mask pattern, removing the spacer pattern, and forming a pattern by etching the etch stop layer and the etch target layer using the first and the second hard mask patterns as an etch barrier.
摘要:
A method for fabricating a semiconductor device includes forming an etching target layer over a substrate including a first region and a second region; forming a hard mask layer over the etching target layer; forming a first etch mask over the hard mask layer, wherein the first etch mask includes a plurality of line patterns and a sacrificial spacer layer formed over the line patterns; forming a second etch mask over the first etch mask, wherein the second etch mask includes a mesh type pattern and a blocking pattern covering the second region; removing the sacrificial spacer layer; forming hard mask layer patterns having a plurality of holes by etching the hard mask layer using the second etch mask and the first etch mask; and forming a plurality of hole patterns in the first region by etching the etching target layer using the hard mask layer patterns.
摘要:
A method for forming contact holes in a semiconductor device includes forming a hard mask layer over an etch target layer, forming a first line pattern in the hard mask layer by etching a portion of the hard mask layer through a primary etch process, forming a second line pattern crossing the first line pattern by etching the hard mask layer including the first line pattern through a secondary etch process, and etching the etch target layer by using the hard mask layer including the first line pattern and the second line pattern as an etch barrier.
摘要:
A method for fabricating a capacitor in a semiconductor device includes forming a stack structure providing a plurality of open regions, the stack structure including an insulation layer and a hard mask pattern, forming a conductive layer over the stack structure and in the open regions, etching a portion of the conductive layer formed outside the open regions to form bottom electrodes in the open regions, removing the hard mask pattern, and etching upper portions of the bottom electrodes that are exposed after the hard mask pattern is removed.
摘要:
A method for fabricating a capacitor in a semiconductor device includes forming a stack structure providing a plurality of open regions, the stack structure including an insulation layer and a hard mask pattern, forming a conductive layer over the stack structure and in the open regions, etching a portion of the conductive layer formed outside the open regions to form bottom electrodes in the open regions, removing the hard mask pattern, and etching upper portions of the bottom electrodes that are exposed after the hard mask pattern is removed.
摘要:
A method for fabricating a semiconductor device includes forming an etching target layer over a substrate including a first region and a second region; forming a hard mask layer over the etching target layer; forming a first etch mask over the hard mask layer, wherein the first etch mask includes a plurality of line patterns and a sacrificial spacer layer formed over the line patterns; forming a second etch mask over the first etch mask, wherein the second etch mask includes a mesh type pattern and a blocking pattern covering the second region; removing the sacrificial spacer layer; forming hard mask layer patterns having a plurality of holes by etching the hard mask layer using the second etch mask and the first etch mask; and forming a plurality of hole patterns in the first region by etching the etching target layer using the hard mask layer patterns.
摘要:
In one embodiment of the invention, a method for a charge pump is disclosed. The method includes biasing a plurality of transistors; switching a pair of main transistor switches to apply or remove a net charge on an output terminal though the biased transistors; and turning on auxiliary transistor switches when the main transistor switches are turned off. The auxiliary transistor switches when turned on provide an auxiliary equalizing path to nodes between the main transistor switches and the biased transistors. The auxiliary equalizing path equalizes voltages between the intermediate nodes to rapidly turn off the biased transistors and reduce noise on the output terminal of the charge pump.
摘要:
A method for fabricating a semiconductor device includes etching a semiconductor substrate using a hard mask layer as a barrier to form a trench defining a plurality of active regions, forming a gap-fill layer to gap-fill a portion of the inside of the trench so that the hard mask layer becomes a protrusion, forming spacers covering both sides of the protrusion, removing one of the spacers using a doped etch barrier as an etch barrier, and etching the gap-fill layer using a remaining spacer as an etch barrier to form a side trench exposing one side of the active region.