摘要:
The present invention provides a method for selectively removing silicon carbide from the surface of a substrate in preference to silicon dioxide. The method comprises abrading a surface of substrate with a polishing composition that comprises a particulate abrasive, at least one acidic buffering agent, and an aqueous carrier.
摘要:
The inventive chemical-mechanical polishing system comprises a polishing component, a liquid carrier, and a polyether amine. The inventive method comprises chemically-mechanically polishing a substrate with the aforementioned polishing system.
摘要:
The invention provides a polishing composition comprising silica, an aminophosphonic acid, a polysaccharide, a tetraalkylammonium salt, a bicarbonate salt, an azole ring, and water, wherein the polishing composition has a pH of about 7 to about 11. The invention further provides a method of polishing a substrate with the polishing composition.
摘要:
A lifting system for a hitch mechanism is provided. The lifting system includes a raise/lower member; an intermediate mechanism to move the raise/lower member between a lower position and an upper position; and a control for causing the intermediate mechanism to move the raise/lower member from one position to the other.
摘要:
The present invention provides a chemical-mechanical polishing (CMP) composition suitable for polishing semi-conductor materials. The composition comprises an abrasive, an organic amino compound, an acidic metal complexing agent and an aqueous carrier A CMP method for polishing a surface of a semiconductor material utilizing the composition is also disclosed.
摘要:
The present invention provides a method for polishing silicon nitride-containing substrates. The method comprises abrading a surface of a silicon nitride substrate with a polishing composition, which comprises colloidal silica, at least one acidic component, and an aqueous carrier. The at least one acidic component has a pKa in the range of about 1 to 4.5. The composition has a pH in the range of about 0.5 pH units less than the pKa of the at least one acidic component to about 1.5 pH units greater than the pKa.
摘要:
The invention provides a chemical-mechanical polishing composition comprising a cationic abrasive, a cationic polymer, a carboxylic acid, and water. The invention further provides a method of chemically-mechanically polishing a substrate with the aforementioned polishing composition. The polishing composition exhibits selectivity for removal of silicon nitride over removal of silicon oxide.
摘要:
The invention provides a chemical-mechanical polishing composition comprising a cationic abrasive, a cationic polymer, a carboxylic acid, and water. The invention further provides a method of chemically-mechanically polishing a substrate with the aforementioned polishing composition. The polishing composition exhibits selectivity for removal of silicon nitride over removal of silicon oxide.
摘要:
The invention is directed to a method of chemically-mechanically polishing a substrate comprising polysilicon and a material selected from silicon oxide and silicon nitride with a chemical-mechanical polishing system comprising an abrasive, a polyethylene oxide/polypropylene oxide copolymer, water, and a polishing pad.
摘要:
The invention is directed to a method of polishing a silicon-containing dielectric layer involving the use of a chemical-mechanical polishing system comprising (a) an inorganic abrasive, (b) a polishing additive, and (c) a liquid carrier, wherein the polishing composition has a pH of about 4 to about 6. The polishing additive comprises a functional group having a pKa of about 3 to about 9 and is selected from the group consisting of arylamines, aminoalcohols, aliphatic amines, heterocyclic amines, hydroxamic acids, aminocarboxylic acids, cyclic monocarboxylic acids, unsaturated monocarboxylic acids, substituted phenols, sulfonamides, thiols, salts thereof, and combinations thereof. The invention is further directed to the chemical-mechanical polishing system, wherein the inorganic abrasive is ceria.
摘要翻译:本发明涉及一种抛光含硅介电层的方法,涉及使用化学机械抛光系统,该系统包括(a)无机磨料,(b)抛光添加剂和(c)液体载体,其中 抛光组合物的pH为约4至约6.抛光添加剂包含具有约3至约9的pK a a的官能团,并且选自芳基胺,氨基醇,脂族胺 杂环胺,异羟肟酸,氨基羧酸,环状单羧酸,不饱和一元羧酸,取代苯酚,磺酰胺,硫醇,其盐及其组合。 本发明进一步涉及化学机械抛光系统,其中无机磨料是二氧化铈。