摘要:
Semiconductor devices and methods of forming semiconductor devices are provided in which a plurality of patterns are simultaneously formed to have different widths and the pattern densities of some regions are increased using double patterning. The semiconductor device includes a plurality of conductive lines each including a first line portion and a second line portion, where the first line portion extends on a substrate in a first direction, the second line portion extends from one end of the first line portion in a second direction, and the first direction is different from the second direction; a plurality of contact pads each of which is connected with a respective conductive line of the plurality of conductive lines via the second line portion of the corresponding conductive line; and a plurality of dummy conductive lines each including a first dummy portion extending from a respective contact pad of the plurality of contact pads, in parallel with the corresponding second line portion in the second direction.
摘要:
A vertical memory device includes a plurality of gate lines, at least one etch-stop layer, channels, and contacts. The gate lines are stacked and spaced apart from each other along a first direction with respect to a surface of substrate. Each of the gate lines includes step portion protruding in a second direction. The at least one etch-stop layer covers the step portion of at least one of the gate lines and includes conductive material. The channels extend through the gate lines in the first direction. The contacts extend through the at least one etch-stop layer and are on the step portions of the gate lines.
摘要:
A method of forming micropatterns separated over a misalignment margin includes forming a first mold pattern including a main pattern and a separation-assist pattern, forming a first spacer mask having a first width around the first mold pattern, forming a second mold pattern using the first spacer mask as an etch mask, forming a second spacer mask having a second width around the second mold pattern, and forming a target pattern using the second spacer mask as an etch mask.
摘要:
Methods of forming a semiconductor device can be provided by simultaneously forming a plurality of mask patterns using self-aligned reverse patterning, including respective mask pattern elements having different widths.
摘要:
A method of forming micropatterns separated over a misalignment margin includes forming a first mold pattern including a main pattern and a separation-assist pattern, forming a first spacer mask having a first width around the first mold pattern, forming a second mold pattern using the first spacer mask as an etch mask, forming a second spacer mask having a second width around the second mold pattern, and forming a target pattern using the second spacer mask as an etch mask.
摘要:
Methods of forming a semiconductor device may include providing a feature layer having a first region and a second region. The methods may also include forming a dual mask layer on the feature layer. The methods may further include forming a variable mask layer on the dual mask layer. The methods may additionally include forming a first structure on the feature layer in the first region and a second structure on the feature layer in the second region by patterning the variable mask layer and the dual mask layer. The methods may also include forming a first spacer on a sidewall of the first structure and a second spacer on a sidewall of the second structure. The methods may further include removing the first structure while maintaining at least a portion of the second structure.
摘要:
Methods of forming a semiconductor device may include providing a feature layer having a first region and a second region. The methods may also include forming a dual mask layer on the feature layer. The methods may further include forming a variable mask layer on the dual mask layer. The methods may additionally include forming a first structure on the feature layer in the first region and a second structure on the feature layer in the second region by patterning the variable mask layer and the dual mask layer. The methods may also include forming a first spacer on a sidewall of the first structure and a second spacer on a sidewall of the second structure. The methods may further include removing the first structure while maintaining at least a portion of the second structure.
摘要:
Methods of forming a semiconductor device may include providing a feature layer having a first region and a second region. The methods may also include forming a dual mask layer on the feature layer. The methods may further include forming a variable mask layer on the dual mask layer. The methods may additionally include forming a first structure on the feature layer in the first region and a second structure on the feature layer in the second region by patterning the variable mask layer and the dual mask layer. The methods may also include forming a first spacer on a sidewall of the first structure and a second spacer on a sidewall of the second structure. The methods may further include removing the first structure while maintaining at least a portion of the second structure.
摘要:
A method of fabricating an integrated circuit device includes forming first and second preliminary mask structures on a hard mask layer in respective first and second regions of the substrate. Spacers are formed on opposing sidewalls of the first and second preliminary mask structures, and the first preliminary mask structure is selectively removed from between the spacers in the first region. The hard mask layer is etched using the spacers and the second preliminary mask structure as a mask to define a first mask pattern including the opposing sidewall spacers with a void therebetween in the first region and a second mask pattern including the opposing sidewall spacers and the second preliminary mask structure therebetween in the second region. An insulation layer is patterned using the first and second mask patterns as respective masks to define a first trench in the first region and a second trench in the second region having a greater width than the first trench, and first and second conductive patterns are formed in the first and second trenches.
摘要:
Methods of forming integrated circuit devices utilize fine width patterning techniques to define conductive or insulating patterns having relatively narrow and relative wide lateral dimensions. A target material layer is formed on a substrate and first and second mask layers of different material are formed in sequence on the target material layer. The second mask layer is selectively etched to define a first pattern therein. Sidewall spacers are formed on opposing sidewalls of the first pattern. The first pattern and sidewall spacers are used collectively as an etching mask during a step to selectively etch the first mask layer to define a second pattern therein. The first pattern is removed to define an opening between the sidewall spacers. The first mask layer is selectively re-etched to convert the second pattern into at least a third pattern, using the sidewall spacers as an etching mask. The target material layer is selectively etched using the third pattern as an etching mask.