Patent ID: 11870130
Assignee: INFINEON TECHNOLOGIES AG
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A method of forming a semiconductor device, the method comprising:
providing a semiconductor die comprising a radio frequency (RF) circuit;
forming a first dielectric layer disposed over a first surface of the semiconductor die;
forming an antenna layer disposed over a surface of the first dielectric layer; and
forming an antenna feeding structure coupling the antenna layer to the RF circuit of the semiconductor die, wherein:
the semiconductor die comprises an opening; and
the antenna feeding structure comprises:
a first portion comprising a first via arranged within the opening of the semiconductor die and extending to the first surface of the semiconductor die,
a second portion comprising a second via arranged through the first dielectric layer and extending from the first surface of the semiconductor die to the antenna layer, and
a third portion comprising a planar conductive layer disposed on the first surface of the semiconductor die, the third portion conductively connecting the first portion to the second portion.