Selective inhibition for selective metal deposition
A method for processing a substrate includes treating the substrate with a small molecular inhibitor (SMI), the substrate including a recess formed in a dielectric layer and a first metal layer in the recess, the SMI covering a surface of the first metal layer. The method further includes, after tre...
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| creator | NIIMI, HIROAKI TAPILY, KANDABARA CLARK, ROBERT D MIYAHARA, TAKAHIRO YU, KAI-HUNG SUZUKI, HIDENAO YONEZAWA, RYOTA WAJDA, CORY |
| description | A method for processing a substrate includes treating the substrate with a small molecular inhibitor (SMI), the substrate including a recess formed in a dielectric layer and a first metal layer in the recess, the SMI covering a surface of the first metal layer. The method further includes, after treating the substrate with the SMI, treating the substrate with a large molecular inhibitor (LMI), the LMI covering sidewalls of the dielectric layer in the recess. The method further includes heating the substrate to remove the SMI from the first metal layer and to expose the first metal layer in the recess, where the LMI remains on the sidewalls after removing the SMI from the first metal layer. The method further includes depositing a second metal over the first metal layer in the recess, where the LMI covering the sidewalls prevents deposition of the second metal on the dielectric layer. |
| format | Patent |
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The method further includes, after treating the substrate with the SMI, treating the substrate with a large molecular inhibitor (LMI), the LMI covering sidewalls of the dielectric layer in the recess. The method further includes heating the substrate to remove the SMI from the first metal layer and to expose the first metal layer in the recess, where the LMI remains on the sidewalls after removing the SMI from the first metal layer. The method further includes depositing a second metal over the first metal layer in the recess, where the LMI covering the sidewalls prevents deposition of the second metal on the dielectric layer.</description><language>chi ; eng</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR 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 ; SEMICONDUCTOR DEVICES ; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231216&DB=EPODOC&CC=TW&NR=202348825A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231216&DB=EPODOC&CC=TW&NR=202348825A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NIIMI, HIROAKI</creatorcontrib><creatorcontrib>TAPILY, KANDABARA</creatorcontrib><creatorcontrib>CLARK, ROBERT D</creatorcontrib><creatorcontrib>MIYAHARA, TAKAHIRO</creatorcontrib><creatorcontrib>YU, KAI-HUNG</creatorcontrib><creatorcontrib>SUZUKI, HIDENAO</creatorcontrib><creatorcontrib>YONEZAWA, RYOTA</creatorcontrib><creatorcontrib>WAJDA, CORY</creatorcontrib><title>Selective inhibition for selective metal deposition</title><description>A method for processing a substrate includes treating the substrate with a small molecular inhibitor (SMI), the substrate including a recess formed in a dielectric layer and a first metal layer in the recess, the SMI covering a surface of the first metal layer. 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The method further includes, after treating the substrate with the SMI, treating the substrate with a large molecular inhibitor (LMI), the LMI covering sidewalls of the dielectric layer in the recess. The method further includes heating the substrate to remove the SMI from the first metal layer and to expose the first metal layer in the recess, where the LMI remains on the sidewalls after removing the SMI from the first metal layer. The method further includes depositing a second metal over the first metal layer in the recess, where the LMI covering the sidewalls prevents deposition of the second metal on the dielectric layer.</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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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 BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR 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 SEMICONDUCTOR DEVICES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION |
| title | Selective inhibition for selective metal deposition |
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