Method for removing redeposited veins from etched platinum
A method of etching a platinum electrode layer disposed on a substrate. The method comprises providing a substrate supporting a platinum electrode layer, an insulation layer on the platinum electrode layer, and a resist layer on the insulation layer. A portion of the insulation layer is etched by em...
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| creator | HWANG, JENG, H |
| description | A method of etching a platinum electrode layer disposed on a substrate. The method comprises providing a substrate supporting a platinum electrode layer, an insulation layer on the platinum electrode layer, and a resist layer on the insulation layer. A portion of the insulation layer is etched by employing a plasma of an etchant gas to break through and to remove the portion of the insulation layer from the platinum electrode layer to expose part of the platinum electrode layer. The exposed part of the platinum electrode layer is then etched by employing a plasma of an etchant gas comprising argon. The etched platinum electrode layer is subsequently overetched by employing a high density plasma of an etchant gas to remove redeposited veils from the etched platinum electrode layer. The etched platinum electrode layer is employed in a semiconductor device. |
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The method comprises providing a substrate supporting a platinum electrode layer, an insulation layer on the platinum electrode layer, and a resist layer on the insulation layer. A portion of the insulation layer is etched by employing a plasma of an etchant gas to break through and to remove the portion of the insulation layer from the platinum electrode layer to expose part of the platinum electrode layer. The exposed part of the platinum electrode layer is then etched by employing a plasma of an etchant gas comprising argon. The etched platinum electrode layer is subsequently overetched by employing a high density plasma of an etchant gas to remove redeposited veils from the etched platinum electrode layer. 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The method comprises providing a substrate supporting a platinum electrode layer, an insulation layer on the platinum electrode layer, and a resist layer on the insulation layer. A portion of the insulation layer is etched by employing a plasma of an etchant gas to break through and to remove the portion of the insulation layer from the platinum electrode layer to expose part of the platinum electrode layer. The exposed part of the platinum electrode layer is then etched by employing a plasma of an etchant gas comprising argon. The etched platinum electrode layer is subsequently overetched by employing a high density plasma of an etchant gas to remove redeposited veils from the etched platinum electrode layer. The etched platinum electrode layer is employed in a semiconductor device.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE SEMICONDUCTOR DEVICES |
| title | Method for removing redeposited veins from etched platinum |
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