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(11) | EP 2 650 916 A8 |
(12) | CORRECTED EUROPEAN PATENT APPLICATION |
Note: Bibliography reflects the latest situation |
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(54) | Substrate device |
(57) A substrate device, includes: a plurality of substrates stacked one on another including
a substrate (10) on which electronic components (12a to 12d) are mounted; and a coupling
member (30 and 40) connecting mechanically and electrically the two opposed substrates
(10 and 20), wherein the coupling member includes: a plurality of core-less solder
balls (40) connecting mechanically and electrically the two opposed substrates (10
and 20); and a plurality of spacers (30) configured to keep a clearance between the
two opposed substrates (10 and 20) wider than a mounting height of the electronic
component (12d) between the substrates.
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