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(11) | EP 2 966 661 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Three-dimension symmetrical vertical transformer |
| (57) First and second paths of the primary-coil of the transformer are located at different
sides of the symmetry-line. First terminals of the first and second paths are first
and second ports of the primary-coil. Second terminals of the first and second paths
are connected to each other. Two partial paths of the first path are connected to
each other by TSV. Two partial paths of the second path are connected to each other
by TSV. Third and fourth paths of the secondary-coil of the transformer are located
on different sides of the symmetry-line. First terminals of the third and fourth paths
are first and second ports of the secondary-coil. Second terminals of the third and
fourth paths are connected to each other. Two partial paths of the third path are
connected to each other by TSV. Two partial paths of the fourth path are connected
to each other by TSV.
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