Organic laminate stack ups are disclosed for a variety of applications, including
high frequency RF applications. One or more inner core
layers may be disposed between outer
layers along with bondply or prepreg
layers as needed. Discrete devices, including surface
mount components and flip chips, may be embedded within the organic laminate stack up structures. The embedding of the discrete devices, which may be active or passive devices, may be in the form of a layer of bondply or prepreg encapsulating the discrete devices. In addition or in the alternative, cavities may be formed in at least the outer layers for housing discrete devices, which include surface
mount components, flip chips, and wire bonded integrated circuits. A variety of caps may be utilized to seal the cavities. Further, shielding may be provided for the organic laminate stack up structure, including through a wall of vias or a plated trench
cut along at least one side of the stack up structure. Each stack up structure may be packaged in a variety of ways, including as a surface
mount component,
ball grid array, or
land grid array.