ETCHING SOLUTION FOR COPPER/MOLYBDENUM-BASED MULTILAYER THIN FILM
The present invention relates to an etching solution being capable of selectively etching a copper/molybdenum-based multilayer thin film with respect to a semiconductor device having an oxide semiconductor layer and a copper/molybdenum-based multilayer thin film, wherein the etching solution compris...
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| creator | MARUYAMA TAKETO OKABE SATOSHI ADANIYA TOMOYUKI |
| description | The present invention relates to an etching solution being capable of selectively etching a copper/molybdenum-based multilayer thin film with respect to a semiconductor device having an oxide semiconductor layer and a copper/molybdenum-based multilayer thin film, wherein the etching solution comprises (A) hydrogen peroxide, (B) an inorganic acid containing no fluorine atom, (C) an organic acid, (D) an amine compound having 2 to 10 carbon atoms, and having an amino group and at least one group selected from an amino group and a hydroxyl group, (E) an azole, and (F) a hydrogen peroxide stabilizer, and has a pH of 2.5 to 5, as well as an etching method using the etching solution for selectively etching a copper/molybdenum-based multilayer thin film from a semiconductor device having an oxide semiconductor layer and a copper/molybdenum-based multilayer thin film. |
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| subjects | ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SEMICONDUCTOR DEVICES |
| title | ETCHING SOLUTION FOR COPPER/MOLYBDENUM-BASED MULTILAYER THIN FILM |
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