摘要:
Disclosed is a slurry and method for chemical-mechanical polishing operation. The slurry may contain abrasive particles, an oxidizer, a pH controller, a chelating agent and water. The viscosity of the slurry may be in the range of about 1.0 cP—about 1.05 cP, so that the step difference may be reduced between regions with patterns and without patterns even after completing the chemical-mechanical polishing operation. A permissible rate of depth of focus (DOF) may not need to be controlled in the subsequent photolithography operation, which may enable the subsequent photolithography operation to be conducted by an optical system with relatively low DOF.
摘要:
A method of fabricating a contact plug of a semiconductor device is provided, the method includes forming a gate pattern on a substrate, forming a capping pattern to cover an upper surface and sidewalls of the gate pattern, forming an interlayer insulation layer on the substrate such that the interlayer insulation layer exposes an upper surface of the capping pattern, and removing a portion of the capping pattern and the interlayer insulation layer such that the upper surface of the capping pattern is planarized.
摘要:
A method of fabricating a contact plug of a semiconductor device is provided, the method includes forming a gate pattern on a substrate, forming a capping pattern to cover an upper surface and sidewalls of the gate pattern, forming an interlayer insulation layer on the substrate such that the interlayer insulation layer exposes an upper surface of the capping pattern, and removing a portion of the capping pattern and the interlayer insulation layer such that the upper surface of the capping pattern is planarized.
摘要:
A slurry composition for polishing metal includes a polymeric polishing accelerating agent, the polymeric polishing accelerating agent including a backbone of hydrocarbon and a side substituent having at least one of a sulfonate ion (SO3−) and a sulfate ion (OSO3−), and an acidic aqueous solution.
摘要:
A slurry composition for polishing metal includes a polymeric polishing accelerating agent, the polymeric polishing accelerating agent including a backbone of hydrocarbon and a side substituent having at least one of a sulfonate ion (SO3−) and a sulfate ion (OSO3−), and an acidic aqueous solution.
摘要:
In methods of forming a thin ferroelectric layer and methods of manufacturing a semiconductor device, a preliminary ferroelectric layer is formed on a substrate by depositing a metal oxide including lead, zirconium and titanium. The surface of the preliminary ferroelectric layer is polished using a slurry composition including an acrylic acid polymer, abrasive particles, and water to form a thin ferroelectric layer on the substrate. The slurry composition may reduce a polishing rate of the preliminary ferroelectric layer such that removal of a bulk portion of the preliminary ferroelectric layer may be suppressed and the surface roughness of the preliminary ferroelectric layer may be improved.
摘要:
In methods of forming a thin ferroelectric layer and methods of manufacturing a semiconductor device, a preliminary ferroelectric layer is formed on a substrate by depositing a metal oxide including lead, zirconium and titanium. The surface of the preliminary ferroelectric layer is polished using a slurry composition including an acrylic acid polymer, abrasive particles, and water to form a thin ferroelectric layer on the substrate. The slurry composition may reduce a polishing rate of the preliminary ferroelectric layer such that removal of a bulk portion of the preliminary ferroelectric layer may be suppressed and the surface roughness of the preliminary ferroelectric layer may be improved.
摘要:
Chemical mechanical apparatuses including a polishing pad conditioning unit for improving a conditioning rate and wear uniformity of a polishing pad are provided. In one aspect, a chemical mechanical polishing apparatus includes a polishing pad conditioner including conditioning disks disposed in a radial direction of a planarizing surface of a circular polishing pad and contacted with the planarizing surface of the circular polishing pad during rotation of the circular polishing pad. The conditioning disks are connected to first drive units supported by an arm disposed over the circular polishing pad and extended in a radial direction of a planarizing surface of the circular polishing pad. The arm is connected to second drive units. The second drive units move the arm horizontally and reciprocally in the radial direction of the planarizing surface of the circular polishing pad. Thus, a conditioning rate and wear uniformity of the polishing pad may be improved.
摘要:
Chemical mechanical apparatuses including a polishing pad conditioning unit for improving a conditioning rate and wear uniformity of a polishing pad are provided. In one aspect, a chemical mechanical polishing apparatus includes a polishing pad conditioner including conditioning disks disposed in a radial direction of a planarizing surface of a circular polishing pad and contacted with the planarizing surface of the circular polishing pad during rotation of the circular polishing pad. The conditioning disks are connected to first drive units supported by an arm disposed over the circular polishing pad and extended in a radial direction of a planarizing surface of the circular polishing pad. The arm is connected to second drive units. The second drive units move the arm horizontally and reciprocally in the radial direction of the planarizing surface of the circular polishing pad. Thus, a conditioning rate and wear uniformity of the polishing pad may be improved.
摘要:
Slurry compositions for selectively polishing silicon nitride relative to silicon oxide, methods of polishing a silicon nitride layer and methods of manufacturing a semiconductor device using the same are provided. The slurry compositions include a first agent for reducing an oxide polishing rate, an abrasive particle and water, and the first agent includes poly(acrylic acid). The slurry composition may have a high polishing selectivity of silicon nitride relative to silicon oxide to be employed in selectively polishing a silicon nitride layer in a semiconductor manufacturing process.