摘要:
An object of the present invention is to provide a cleaning liquid that effectively removes in a short time organic residues and abrasive grains derived from a slurry in a semiconductor substrate in which a Co contact plug and/or Co wiring are present. The present invention relates to a cleaning liquid composition for cleaning a substrate having a Co contact plug and/or Co wiring, which contains one or more reducing agents and water. Furthermore, the present invention relates to a cleaning liquid composition for cleaning a substrate having Co and not having Cu, which contains one or more reducing agents and water and has a pH of 3 or more and less than 12.
摘要:
Provided is a cleaning liquid composition which is useful for cleaning of a substrate or the like that has been subjected to a chemical mechanical polishing (CMP) process, etc in the production steps of an electronic device such as a semiconductor element. A cleaning liquid composition according to the present invention is used for the purpose of cleaning a substrate that has a Cu wiring, and comprises one or more basic compounds and one or more nitrogen-containing monocyclic heterocyclic aromatic compounds that contain one or more carboxyl groups or ester groups, provided that in cases where one or more amino groups are contained therein, only amino groups directly bonded to a nitrogen-containing heterocyclic rind are contained. This cleaning liquid composition has a hydrogen ion concentration (pH) of 8-12.
摘要:
As a method for producing enterocytes derived from pluripotent stem cells and having functions corresponding to those of actual enterocytes, a method for producing enterocytes using an enterocyte differentiation medium containing a GSK3 inhibitor, and at least one selected from the group consisting of an activator of a hepatocyte growth factor receptor, an adrenal cortex hormone, calcitriol, and dimethyl sulfoxide is provided.
摘要:
The present invention provides, in order to prepare matured hepatocytes analogous in various points to primary hepatocytes, a method for preparing hepatocytes or cells that can be differentiated into hepatocytes from pluripotent stem cells, comprising the steps of: (1) culturing the pluripotent stem cells in a medium containing an activator of an activin receptor-like kinase-4,7; (2) culturing the cells obtained in the step (1) in a medium containing a bone morphogenetic factor and a fibroblast growth factor; (3) culturing the cells obtained in the step (2) in a medium containing an activator of a hepatocyte growth factor receptor and an activator of an oncostatin M receptor; and (4) culturing the cells obtained in the step (3) to obtain hepatocytes or cells that can be differentiated into hepatocytes, wherein in at least one of the steps (2), (3) and (4), cells are cultured on a high-density collagen gel membrane.
摘要:
To provide a composition for removing photoresist residue and/or polymer residue formed in a process for producing a semiconductor circuit element, and a removal method employing same. A composition for removing photoresist residue and/or polymer residue, the composition containing saccharin and water, and the pH being no greater than 9.7.
摘要:
This method for manufacturing a lead-free niobate-system ferroelectric thin film device includes: a lower electrode film formation step of forming a lower electrode film on a substrate; a ferroelectric thin film formation step of forming a niobate-system ferroelectric thin film on the lower electrode film; an etch mask pattern formation step of forming an etch mask in a desired pattern on the niobate-system ferroelectric thin film; and a ferroelectric thin film etching step of shaping the niobate-system ferroelectric thin film into a desired fine pattern by wet etching using an etchant comprising: a predetermined chelating agent including at least one selected from EDTMP, NTMP, CyDTA, HEDP, GBMP, DTPMP, and citric acid; an aqueous alkaline solution containing an aqueous ammonia solution; and an aqueous hydrogen peroxide solution.
摘要:
Objects of the present invention are to provide a novel dehydrogenation reaction catalyst, to provide a method that can produce a ketone, an aldehyde, and a carboxylic acid with high efficiency from an alcohol, and to provide a method for efficiently producing hydrogen from an alcohol, formic acid, or a formate, and they are accomplished by a catalyst containing an organometallic compound of Formula (1).
摘要:
The purpose of the present invention is to provide a cleaning liquid composition useful in cleaning substrates, etc., which have undergone treatment such as chemical mechanical polishing (CMP) in a process for manufacturing electronic devices such as semiconductor elements. This cleaning liquid composition for cleaning substrates having Cu wiring includes one or more basic compounds and one or more heteromonocyclic aromatic compounds containing a nitrogen atom, and has a hydrogen ion concentration (pH) of 8-11.
摘要:
The problem of the present invention is to provide an etching solution composition that can etch with high accuracy a metal-laminated film pattern comprising thin films of copper and a copper alloy, can form an excellent pattern shape, and has practically excellent and stable characteristics with long solution life, and to provide an etching method using such etching solution composition. The present invention relates to an etching method for etching a metal-laminated film having a layer consisting of copper and a layer consisting of a copper alloy containing copper, using an etching solution composition comprising phosphoric acid, nitric acid, acetic acid and water, as well as to said etching solution composition.
摘要:
Provided are a photoresist residue and polymer residue removing liquid composition, and a method of removing the residue used therewith, for removing photoresist residue and polymer residue produced during a process of manufacturing a semiconductor circuit element having metallic wiring. Specifically, the composition does not contain nitrogen-containing organic hydroxyl compounds, ammonia or fluorine compounds, and contains an aliphatic polycarboxylic acid having a melting point of 25° C. or higher with an excellent residue removing property and having a metallic oxide main component as the residue removing component. The photoresist residue and polymer residue removing liquid composition, and the method of removing the residue used therewith, is capable of preventing the aliphatic polycarboxylic acid from being recrystallized by evaporation of water after a solution has adhered around a cleaning device liquid ejecting nozzle or a cleaning tank and a chamber. In the photoresist residue and polymer residue removing liquid composition containing the aliphatic polycarboxylic acid with a melting point of 25° C. or higher, the removing liquid contains an organic solvent that is miscible with water and has a vapor pressure of 17 mm Hg or less at 25° C. and a hydroxyl group within the structure.