METHOD OF MAKING A PRINTED CIRCUIT BOARD
The invention is a method for providing an electrically conductive path through a substrate. It is especially useful for electrically connecting together electrically conductive paths (25) on opposite sides of a circuit board (20). The method is characterized by the steps of forming a passage (21) t...
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| creator | ILARDI, JOSEPH MICHAEL LILLIE, EDWIN DAVID KANE, ROBERT PETER |
| description | The invention is a method for providing an electrically conductive path through a substrate. It is especially useful for electrically connecting together electrically conductive paths (25) on opposite sides of a circuit board (20). The method is characterized by the steps of forming a passage (21) through a substrate (20) that connects to at least one conductive path (25) on each side of the substrate (20), filling the passage (21) with an electrically conductive powder (10), applying pressure with a die (30) to obtain a compacted powder (11) in the passage (21), and then heating the compacted powder (11) to a temperature that increases the conductivity and ductility of the compacted powder (11) and its adhesion to the substrate (20) without adversely affecting the shape or condition of the substrate (20). |
| format | Patent |
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It is especially useful for electrically connecting together electrically conductive paths (25) on opposite sides of a circuit board (20). The method is characterized by the steps of forming a passage (21) through a substrate (20) that connects to at least one conductive path (25) on each side of the substrate (20), filling the passage (21) with an electrically conductive powder (10), applying pressure with a die (30) to obtain a compacted powder (11) in the passage (21), and then heating the compacted powder (11) to a temperature that increases the conductivity and ductility of the compacted powder (11) and its adhesion to the substrate (20) without adversely affecting the shape or condition of the substrate (20).</description><edition>4</edition><language>eng</language><subject>CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ; PRINTED CIRCUITS</subject><creationdate>1986</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=19860730&DB=EPODOC&CC=EP&NR=0138672A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19860730&DB=EPODOC&CC=EP&NR=0138672A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ILARDI, JOSEPH MICHAEL</creatorcontrib><creatorcontrib>LILLIE, EDWIN DAVID</creatorcontrib><creatorcontrib>KANE, ROBERT PETER</creatorcontrib><title>METHOD OF MAKING A PRINTED CIRCUIT BOARD</title><description>The invention is a method for providing an electrically conductive path through a substrate. 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It is especially useful for electrically connecting together electrically conductive paths (25) on opposite sides of a circuit board (20). The method is characterized by the steps of forming a passage (21) through a substrate (20) that connects to at least one conductive path (25) on each side of the substrate (20), filling the passage (21) with an electrically conductive powder (10), applying pressure with a die (30) to obtain a compacted powder (11) in the passage (21), and then heating the compacted powder (11) to a temperature that increases the conductivity and ductility of the compacted powder (11) and its adhesion to the substrate (20) without adversely affecting the shape or condition of the substrate (20).</abstract><edition>4</edition><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 | METHOD OF MAKING A PRINTED CIRCUIT BOARD |
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