SURFACE FINISH FOR CONDUCTIVE FEATURES ON SUBSTRATES
An electronic substrate includes one or more conductive features. In order to preserve the performance and conductivity of the one or more conductive features, the exposed portions of the conductive features are deposited with a protective layer comprising a layer of silver, followed by a layer of g...
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| creator | ORLOWSKI JOHN AUGUST LEAHY DONALD JOSEPH |
| description | An electronic substrate includes one or more conductive features. In order to preserve the performance and conductivity of the one or more conductive features, the exposed portions of the conductive features are deposited with a protective layer comprising a layer of silver, followed by a layer of gold. By covering the exposed portions of the conductive features of the electronic substrate with the protective layer, oxidation and exposure of the conductive features is prevented, thereby preserving the performance and conductivity of the copper features. Further, during a soldering process, the protective layer is substantially dissolved, thereby allowing the solder to join directly with the underlying conductive features and improving the performance of the electronic substrate. |
| format | Patent |
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In order to preserve the performance and conductivity of the one or more conductive features, the exposed portions of the conductive features are deposited with a protective layer comprising a layer of silver, followed by a layer of gold. By covering the exposed portions of the conductive features of the electronic substrate with the protective layer, oxidation and exposure of the conductive features is prevented, thereby preserving the performance and conductivity of the copper features. 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In order to preserve the performance and conductivity of the one or more conductive features, the exposed portions of the conductive features are deposited with a protective layer comprising a layer of silver, followed by a layer of gold. By covering the exposed portions of the conductive features of the electronic substrate with the protective layer, oxidation and exposure of the conductive features is prevented, thereby preserving the performance and conductivity of the copper features. Further, during a soldering process, the protective layer is substantially dissolved, thereby allowing the solder to join directly with the underlying conductive features and improving the performance of the electronic substrate.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS |
| title | SURFACE FINISH FOR CONDUCTIVE FEATURES ON SUBSTRATES |
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