摘要:
This invention is concerning an etchant composition used to etch a silicon-containing film formed on a target substrate. The etchant composition includes at least one selected from the group consisting of an organic compound containing a hydroxyl group, an organic compound containing a carbonyl group, an inorganic acid and inorganic salt, hydrofluoric acid, ammonium fluoride and an organic acid.
摘要:
This invention is concerning an etchant composition used to etch a silicon-containing film formed on a target substrate. The etchant composition includes at least one selected from the group consisting of an organic compound containing a hydroxyl group, an organic compound containing a carbonyl group, an inorganic acid and inorganic salt, hydrofluoric acid, ammonium fluoride and an organic acid.
摘要:
A metal film such as an aluminum film or an aluminum alloy film is etched with good controllability, preventing a resist from bleeding, to have a proper taper configuration and superior flatness.A water solution containing a phosphoric acid, a nitric acid, and an organic acid salt is used as an etching liquid composition used to etch the metal film on a substrate.The organic acid salt is composed of one kind selected from a group consisting of an aliphatic monocarboxylic acid, an aliphatic polycarboxylic acid, an aliphatic oxicarboxylic acid, an aromatic monocarboxylic acid, an aromatic polycarboxylic acid and an aromatic oxycarboxylic acid, and one kind selected from a group consisting of an ammonium salt, an amine salt, a quaternary ammonium salt, and an alkali metal salt.In addition, a concentration of the organic acid salt ranges from 0.1% to 20% by weight.In addition, the etching liquid composition according to the present invention is used when the metal film is formed of aluminum or an aluminum alloy.
摘要:
A metal film such as an aluminum film or an aluminum alloy film is etched with good controllability, preventing a resist from bleeding, to have a proper taper configuration and superior flatness.A water solution containing a phosphoric acid, a nitric acid, and an organic acid salt is used as an etching liquid composition used to etch the metal film on a substrate.The organic acid salt is composed of one kind selected from a group consisting of an aliphatic monocarboxylic acid, an aliphatic polycarboxylic acid, an aliphatic oxicarboxylic acid, an aromatic monocarboxylic acid, an aromatic polycarboxylic acid and an aromatic oxycarboxylic acid, and one kind selected from a group consisting of an ammonium salt, an amine salt, a quaternary ammonium salt, and an alkali metal salt.In addition, a concentration of the organic acid salt ranges from 0.1% to 20% by weight.In addition, the etching liquid composition according to the present invention is used when the metal film is formed of aluminum or an aluminum alloy.
摘要:
An etchant composition contains (a) an alkaline compound mixture of an organic alkaline compound and inorganic alkaline compound and (b) a silicon-containing compound. The organic alkaline compound is composed of one or more ingredients from quaternary ammonium hydroxide and ethylenediamine. The inorganic alkaline compound is composed of one or more ingredients from sodium hydroxide, potassium hydroxide, ammonia and hydrazine. The silicon-containing inorganic compound is composed of one or more ingredients from metal silicon, fumed silica, colloidal silica, silica gel, silica sol, diatomaceous earth, acid clay and activated clay, and the silicon-containing organic compound is composed of one or more ingredients from quaternary ammonium salts of alkyl silicate and quaternary ammonium salts of alkyl silicic acid.
摘要:
A composition used for removing a photoresist, polymeric material, or residue from a substrate contains a corrosion inhibitor that is a derivative of gallic acid that is soluble in water-miscible organic solvents, water, at least one organic amine, and two or more water-miscible organic solvents. The composition may further contain a surfactant. Use of this composition reduces resist reattachment, reduces corrosion, and improves peelability.
摘要:
An optical recording medium having excellent light resistance that includes a substrate; and a recording layer which is provided on the substrate directly or on another layer provided on the substrate, wherein the recording layer is capable of recording and/or reading information by irradiating light thereon, the recording layer including a metal complex compound comprising an azo compound having a coupler component with a Meldrum's acid structure and a diazo component with a nitrogen-containing heterocyclic aromatic ring structure, and a metal ion coordinated to the azo compound.
摘要:
An absorbent article includes a liquid-permeable top layer, a liquid-impermeable back layer, and a liquid retentive absorbent member, interposed between the top layer and the back layer. The absorbent member is arranged to form an opposing pair of barrier cuffs which are within longitudinal edges of the top layer and extend along the longitudinal edges. A pocket portion is formed between the pair of barrier cuffs.
摘要:
An absorbent article includes a liquid-permeable top layer, a liquid-impermeable back layer, and a liquid-retentive absorbent member interposed between the top layer and the back layer. The absorbent member is arranged such that a pair of absorbent barrier cuffs having a prescribed width are formed at respective left and right opposing side portions of the top layer in the width-wise direction thereof, and liquid-shrinkable members, which can elastically shrink upon absorption of liquid, are disposed within the barrier cuffs and extend in the longitudinal direction of the barrier cuffs.
摘要:
An absorbent sheet 10 of the invention is a thin sheet having a first surface 10A and a second surface 10B and containing a fibrous material 11 and superabsorbent polymer particles 12. The polymer particles 12 are dispersed in the thickness direction of the absorbent sheet 10 in a state of being held by the fibrous material 11. When the portion in the thickness direction of the absorbent sheet 10 where the polymer particles 12 are dispersed is divided into regions by at least one plane perpendicular to the thickness direction of the sheet 10, the average particle size of the superabsorbent polymer particles 12 dispersed in each region decreases from the region that is the nearest to the first surface 10A to the region that is the nearest to the second surface 10B of the absorbent sheet.