Patch Antenna Package Layout With Dielectric Isolation Over IC Die

A dielectric feature is introduced as an intermediary element positioned between the semiconductor chip and the patch antenna. This dielectric feature acts as a mediator that reduces the harmful electromagnetic interference from the chip to the antenna while allowing the antenna to maintain its overlapping position for high integration density. The dielectric material provides electrical isolation and improves antenna efficiency without sacrificing the space-saving overlapping configuration.

The dielectric feature is designed to serve multiple functions simultaneously: it provides electrical isolation between the chip and antenna to reduce interference, acts as a structural support element, and can be integrated with existing package substrates. By making the dielectric feature multi-functional, the patent improves antenna efficiency without proportionally increasing device complexity, as the same element performs several critical roles in the package structure.

The patent systematically varies and optimizes the thickness parameter of the dielectric feature to achieve the desired balance between antenna efficiency and package height. By carefully selecting specific thickness values and dielectric material properties (such as dielectric constant), the patent maximizes interference reduction while minimizing the increase in package height. This parameter optimization allows the dielectric feature to be thin enough to maintain compact packaging while still providing sufficient isolation to achieve high antenna efficiency.