Method for forming thin film capacitors
Thin film capacitors are formed by a multi-level dry processing method that includes simultaneous ablation of via openings through both the dielectric and the metal electrode layers of a capacitor. Preferably, the dielectric films are formed of barium strontium titanate and the metal electrode layer...
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| creator | FAROOQ MUKTA SHAJI GIRI AJAY P PATEL RAJESH SHANKERIAL |
| description | Thin film capacitors are formed by a multi-level dry processing method that includes simultaneous ablation of via openings through both the dielectric and the metal electrode layers of a capacitor. Preferably, the dielectric films are formed of barium strontium titanate and the metal electrode layers are formed of platinum. The present invention overcomes the problems associated with the use of strong etchants to sequentially form separate via openings through the electrode and dielectric layers, prevents the potential for delamination of the respective layers during wet etching and the possible undesirable effects of etching solutions on substrate materials. |
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Preferably, the dielectric films are formed of barium strontium titanate and the metal electrode layers are formed of platinum. The present invention overcomes the problems associated with the use of strong etchants to sequentially form separate via openings through the electrode and dielectric layers, prevents the potential for delamination of the respective layers during wet etching and the possible undesirable effects of etching solutions on substrate materials.</description><edition>6</edition><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ; PRINTED CIRCUITS ; SEMICONDUCTOR DEVICES</subject><creationdate>1999</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=19990615&DB=EPODOC&CC=US&NR=5912044A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990615&DB=EPODOC&CC=US&NR=5912044A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FAROOQ; MUKTA SHAJI</creatorcontrib><creatorcontrib>GIRI; AJAY P</creatorcontrib><creatorcontrib>PATEL; RAJESH SHANKERIAL</creatorcontrib><title>Method for forming thin film capacitors</title><description>Thin film capacitors are formed by a multi-level dry processing method that includes simultaneous ablation of via openings through both the dielectric and the metal electrode layers of a capacitor. 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| subjects | BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SEMICONDUCTOR DEVICES |
| title | Method for forming thin film capacitors |
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