Abstract:
Provided are an etching composition including an oxidizing agent, an ammonium salt, an aqueous solvent, and an accelerator, a method of preparing a metal-containing film etching by using the same, and a method of manufacturing a semiconductor device by using the same.
Abstract:
A pre-treatment composition for use before etching SiGe includes an acid, an alcohol, and a silane compound having a chemical formula R—Si(R1)n(OR2)3-n in which R is (C3-C20)alkyl, (C6-C12)aryl, (C6-C12)aryl(C3-C20)alkyl, or (C3-C20)alkyl(C6-C12)aryl, R1 is hydrogen, hydroxyl, halogen, (C1-C20)alkyl, halo(C1-C20)alkyl, (C6-C12)aryl, (C6-C12)aryl(C1-C20)alkyl, or (C1-C20)alkyl(C6-C12)aryl, R2 is hydrogen, (C1-C20)alkyl, halo(C1-C20)alkyl, (C6-C12)aryl, (C6-C12)aryl(C1-C20)alkyl, or (C1-C20)alkyl(C6-C12)aryl, n is an integer of 0 to 2, and the alkyl, aryl, arylalkyl, or alkylaryl of R, and the alkyl, haloalkyl, aryl, arylalkyl, or alkylaryl of R1 may be further substituted with at least one substituent selected from halogen, hydroxyl, —N(R11)(R12), and —S(R13), where each of the R11, the R12 and the R13 is independently hydrogen or (C1-C20)alkyl.
Abstract:
An etching composition includes about 1 wt % to about 7 wt % of hydrogen peroxide, about 20 wt % to about 80 wt % of phosphoric acid, about 0.001 wt % to about 1 wt % of an amine or amide polymer, 0 wt % to about 55 wt % of sulfuric acid, and about 10 wt % to about 45 wt % of deionized water.
Abstract:
An etching composition for a titanium-containing layer may include an oxidant, an inorganic acid, and a selective etching inhibitor. The inorganic acid may include phosphorus-based inorganic acid, chlorine-based inorganic acid, or fluorine-based inorganic acid, or any combination thereof. The selective etching inhibitor may include a polymer having a nitrogen-containing repeating unit.
Abstract:
An etchant composition for etching a silicon germanium film includes, based on a total weight of the etchant composition, about 5 wt% to about 14 wt% of an oxidant, about 0.01 wt% to about 5 wt% of a fluorine compound, about 0.01 wt% to about 5 wt% of an amine compound, about 0.01 wt% to about 1 wt% of an alcohol compound having a hydrophilic head and a hydrophobic tail, about 60 wt% to about 90 wt% of an organic solvent, and a balance of water. A method of manufacturing an integrated circuit device includes: forming, on a substrate, a structure in which a plurality of silicon films and a plurality of silicon germanium films are alternately stacked; and selectively removing the plurality of silicon germanium films by using the etchant composition.
Abstract:
An etching composition for etching a molybdenum film, the etching composition includes about 0.1 wt % to about 5 wt % of an oxidant; about 10 wt % to about 40 wt % of a chelate agent, the chelate agent including a mineral acid; about 0.01 wt % to about 3 wt % of a corrosion inhibitor, the corrosion inhibitor including an ammonium salt, an amine compound, or a combination thereof; and an organic solvent, all wt % being based on a total weight of the etching composition.
Abstract:
A slurry composition for a chemical mechanical polishing (CMP) process, the slurry composition including an organic polishing booster including an iminium cation; a carrier; and optionally including inorganic polishing particles, wherein, when included, the inorganic polishing particles are included in the slurry composition in an amount of less than 0.1% by weight, based on a total weight of the slurry composition.
Abstract:
Disclosed are substrate drying methods, photoresist developing methods, and/or photolithography methods. The substrate drying method including providing a drying liquid on a substrate, increasing a pressure of the drying liquid to produce a supercritical fluid, and removing the supercritical fluid to dry the substrate may be provided.
Abstract:
Provided is a method of rinsing and drying a semiconductor device, including forming a pattern on a substrate; rinsing the substrate, where the pattern is formed, using a rinse solution; loading the substrate into a dry chamber; injecting supercritical carbon dioxide into the dry chamber such that rinse solution remaining on the pattern is diluted to have a concentration below 2 percent by weight based on a weight of the rinse solution remaining on the pattern and the supercritical carbon dioxide; and venting the supercritical carbon dioxide such that the dry chamber is maintained at atmospheric pressure to dry the substrate where the pattern is formed.
Abstract:
A slurry composition for polishing metal and a method of manufacturing an integrated circuit device, the slurry composition includes a first organic polishing booster including a cationic polymer salt that includes a quaternary ammonium cation; a second organic polishing booster including an organic acid; an oxidizer; a pH adjuster; 0 wt% to about 0.1 wt% of an inorganic abrasive; and water.