Patent ID: 8226849

Claim:
A concentrated metal-polishing liquid material comprising an ingredient group of a protective film-forming agent, a dissolution promoter for the protective film-forming agent, and water, wherein said protective film-forming agent is an azole compound, wherein said dissolution promoter is a liquid organic solvent for the protective film-forming agent, is at least one of alcohols, ethers and ketones, has a property that it increases dissolution of the protective film-forming agent in water, and in which the solubility of the protective film-forming agent is at least 40 g/liter, wherein a water content of the concentrated metal-polishing liquid material is between 75 and 98% by weight, and wherein said concentrated metal-polishing liquid material is to be diluted with a diluent, to form a metal-polishing liquid, and used with an oxidized-metal etchant and oxidizer.