Enhanced pad design for substrate
A ball grid array electronic package is attached to a substrate by means of solder balls and solder paste. Connection is made between a contact on the ball grid array and a solder ball by means of a first joining medium, such as a solder paste. Connection is made between a solder ball and a contact...
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| creator | GARRITY JOHN JOSEPH HANNAH MCMORRAN JOHN JAMES |
| description | A ball grid array electronic package is attached to a substrate by means of solder balls and solder paste. Connection is made between a contact on the ball grid array and a solder ball by means of a first joining medium, such as a solder paste. Connection is made between a solder ball and a contact arranged on the substrate by means of a second joining medium. The contact arranged on the substrate is substantially quadrilateral in shape, and preferably substantially square in shape. Connection to the substrate, e.g., using round solder balls, is much more easily detected, e.g., by x-ray, than when using round pads, especially those having a smaller diameter than the balls. |
| format | Patent |
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Connection is made between a contact on the ball grid array and a solder ball by means of a first joining medium, such as a solder paste. Connection is made between a solder ball and a contact arranged on the substrate by means of a second joining medium. The contact arranged on the substrate is substantially quadrilateral in shape, and preferably substantially square in shape. Connection to the substrate, e.g., using round solder balls, is much more easily detected, e.g., by x-ray, than when using round pads, especially those having a smaller diameter than the balls.</description><edition>7</edition><language>eng</language><subject>CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ; CLADDING OR PLATING BY SOLDERING OR WELDING ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; MACHINE TOOLS ; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; PERFORMING OPERATIONS ; PHYSICS ; PRINTED CIRCUITS ; SOLDERING OR UNSOLDERING ; TESTING ; TRANSPORTING ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>2001</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=20010802&DB=EPODOC&CC=US&NR=2001010321A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20010802&DB=EPODOC&CC=US&NR=2001010321A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GARRITY JOHN JOSEPH</creatorcontrib><creatorcontrib>HANNAH MCMORRAN JOHN JAMES</creatorcontrib><title>Enhanced pad design for substrate</title><description>A ball grid array electronic package is attached to a substrate by means of solder balls and solder paste. Connection is made between a contact on the ball grid array and a solder ball by means of a first joining medium, such as a solder paste. Connection is made between a solder ball and a contact arranged on the substrate by means of a second joining medium. The contact arranged on the substrate is substantially quadrilateral in shape, and preferably substantially square in shape. 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Connection is made between a contact on the ball grid array and a solder ball by means of a first joining medium, such as a solder paste. Connection is made between a solder ball and a contact arranged on the substrate by means of a second joining medium. The contact arranged on the substrate is substantially quadrilateral in shape, and preferably substantially square in shape. Connection to the substrate, e.g., using round solder balls, is much more easily detected, e.g., by x-ray, than when using round pads, especially those having a smaller diameter than the balls.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_epo_espacenet_US2001010321A1 |
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| subjects | CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MACHINE TOOLS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PHYSICS PRINTED CIRCUITS SOLDERING OR UNSOLDERING TESTING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | Enhanced pad design for substrate |
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