In embodiments, a package assembly may include an application-specific integrated circuit (ASIC) and a microelectromechanical system (MEMS) having an active side and an inactive side. In embodiments, the MEMS may be coupled directly to the ASIC by way of one or more interconnects. The MEMS, ASIC, and one or more interconnects may define or form a cavity such that the active portion of the MEMS is within the cavity. In some embodiments, the package assembly may include a plurality of MEMS coupled directly to the ASIC by way of a plurality of one or more interconnects. Other embodiments may be described and/or claimed.