Patent ID: 11870341
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A method of forming an isolated power converter package, comprising:
providing a molded transformer comprising a laminate substrate comprising a first coil and a second coil and a dielectric material, a top side magnetic sheet and a bottom side magnetic sheet each comprising a magnetic mold material including magnetic particles in a second dielectric material on respective sides of the laminate substrate, including coil contacts on a top surface of the laminate substrate;
dispensing a die attach material onto a first die pad and a second die pad, on first supports and on second supports for supporting the molded transformer of a leadframe, the leadframe including a first plurality of leads connected to the first and the second supports and a second plurality of leads;
positioning a first semiconductor die including first bond pads on the first die pad, a second semiconductor die including second bond pads on the second die pad, and the molded transformer with edges of the laminate substrate on the first and the second supports;
wirebonding between the first bond pads and the second plurality of leads, between the second bond pads and the second plurality of leads, between the first bond pads and contacts on the laminate substrate, and between the second bond pads and contacts on the laminate substrate, and
molding to form a mold compound providing encapsulation for the first semiconductor die, the second semiconductor die, and for the molded transformer.