摘要:
The method of forming a pattern includes forming a first photosensitive layer pattern including a first pattern in a first region of a substrate and a second pattern in a second region of the substrate, by performing a first photolithography process using a photomask having a first mask region and a second mask region. The first pattern is transferred from the first mask region, and the second pattern is transferred from the second mask region. The method further includes forming a second photosensitive layer pattern including a third pattern in the second region of the substrate and a fourth pattern in the first region of the substrate, by performing a second photolithography process using the photomask. The third pattern is transferred from the first mask region, and the fourth pattern is transferred from the second mask region
摘要:
The method of forming a pattern includes forming a first photosensitive layer pattern including a first pattern in a first region of a substrate and a second pattern in a second region of the substrate, by performing a first photolithography process using a photomask having a first mask region and a second mask region. The first pattern is transferred from the first mask region, and the second pattern is transferred from the second mask region. The method further includes forming a second photosensitive layer pattern including a third pattern in the second region of the substrate and a fourth pattern in the first region of the substrate, by performing a second photolithography process using the photomask. The third pattern is transferred from the first mask region, and the fourth pattern is transferred from the second mask region.
摘要:
An embodiment of a method of fabricating a chrome-less phase shift mask includes forming a hard mask film on a surface of a mask body having a trench circuit area and a mesa circuit area. The hard mask film is patterned. The mask body is anisotropically etched using the hard mask pattern as an etching mask to form pre-pitting patterns in the trench circuit area. The hard mask film having the hard mask pattern is again patterned to form a mesa hard mask pattern on the mesa circuit area and to expose a top surface of the trench circuit area. The mask body is anisotropically etched to form phase shift hillock patterns in the mesa circuit area and phase shift pitting patterns in the trench circuit area. Phase shift pitting patterns and phase shift hillock patterns may be formed on a single body.
摘要:
An embodiment of a method of fabricating a chrome-less phase shift mask includes forming a hard mask film on a surface of a mask body having a trench circuit area and a mesa circuit area. The hard mask film is patterned. The mask body is anisotropically etched using the hard mask pattern as an etching mask to form pre-pitting patterns in the trench circuit area. The hard mask film having the hard mask pattern is again patterned to form a mesa hard mask pattern on the mesa circuit area and to expose a top surface of the trench circuit area. The mask body is anisotropically etched to form phase shift hillock patterns in the mesa circuit area and phase shift pitting patterns in the trench circuit area. Phase shift pitting patterns and phase shift hillock patterns may be formed on a single body.
摘要:
A mask and a method of forming the mask obviate optical proximity effects. The mask includes a light-shielding layer on a transparent substrate. The light-shielding layer is patterned to form a main pattern and a phantom pattern. The main and phantom patterns each have a light shielding portion and a light-transmitting portion. The pitch of the features constituting the phantom pattern is identical to the pitch of the features constituting the main pattern. The shape of the light-transmitting features of the phantom pattern region is identical to the shape of the light-transmitting features of the main pattern region.
摘要:
A pellicle including a frame having a square shape; and a buffer zone in the frame, the buffer zone dividing a lower surface of the frame into a plurality of portions.
摘要:
A mask and a method of forming the mask obviate optical proximity effects. The mask includes a light-shielding layer on a transparent substrate. The light-shielding layer is patterned to form a main pattern and a phantom pattern. The main and phantom patterns each have a light shielding portion and a light-transmitting portion. The pitch of the features constituting the phantom pattern is identical to the pitch of the features constituting the main pattern. The shape of the light-transmitting features of the phantom pattern region is identical to the shape of the light-transmitting features of the main pattern region.
摘要:
An apparatus and method for improving global flatness of a photomask is provided. The apparatus may include an adsorbing plate including vacuuming holes on one surface thereof, the adsorbing plate being adapted to adsorb the photomask thereon, a photomask supporting part including a plurality of supporting portions adapted to support the photomask and supporting arms on which the supporting portions are disposed, and a pressing plate including a pressing frame adapted to apply pressure to one surface of the photomask.