Package substrate including passive devices embedded with contact surfaces orthogonal to a plane of substrate and related methods

Abstract

Passive devices may be embedded into a cavity in a package substrate, with electrical contacts of the passive device on a contact surface orthogonal to a surface of the package substrate and extending through the package substrate. The electrical contacts of the passive device may be coupled to vias coupled to a power supply to provide capacitive decoupling. One or more through-hole vias (THVs), which provide current to ICs on the package substrate, may be excluded from the package substrate to accommodate the passive device. Embedding the passive devices in the cavity of the package substrate with the contact surface orthogonal to, rather than parallel to, the surface of the package substrate, reduces an area occupied by the passive device. In this manner, a number of the THVs excluded from the package substrate is reduced, which results in a smaller impact to the resistance of the power supply network.

Dependencies are inferred from the claim text.