Patent ID: 11948721
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An apparatus comprising:
a laminate including:
a dielectric layer having a first surface and a second surface opposed to the first surface;
a first conductive layer forming a first transformer coil overlying the first surface of the dielectric layer; and
a second conductive layer forming a second transformer coil overlying the second surface of the dielectric layer;

a first magnetic layer over the first conductive layer,
wherein a first edge surface of the first magnetic layer is coplanar with a first edge surface of the laminate, and
wherein a second edge surface of the first magnetic layer is coplanar with a second edge surface of the laminate; and
a second magnetic layer over the second conductive layer,
wherein a first edge surface of the second magnetic layer is coplanar with the first edge surface of the laminate, and
wherein a second edge surface of the second magnetic layer is coplanar with the second edge surface of the laminate;
wherein the first conductive layer forms a first set of bond pads providing electrical connections to the first transformer coil and a second set of bond pads providing electrical connections to the second transformer coil, the first magnetic layer not covering the bond pads;
a first metallic pad, a second metallic pad and leads, the second metallic pad being electrically isolated from the first metallic pad,
wherein the laminate is mounted to the first metallic pad with the second surface of the laminate facing the metallic pad;
a first semiconductor die mounted to the first metallic pad adjacent to the laminate;
a second semiconductor die mounted to the second metallic pad;
a first set of wire bonds electrically connecting the first semiconductor die and the first set of bond pads; and
a second set of wire bonds electrically connecting the second semiconductor die and the first set of bond pads.