Abstract: In accordance with disclosed embodiments, there is an antenna package using a ball attach array to connect an antenna and base substrates of the package. One example is an RF module package including an RF antenna package having a stack material in between a top and a bottom antenna layer to form multiple antenna plane surfaces, a base package having alternating patterned conductive and dielectric layers to form routing through the base package, and a bond between a bottom surface of the antenna package and to a top surface of the base package.

Abstract: Embodiments of a microelectronic assembly comprise: a plurality of layers of integrated circuit (IC) dies, each layer coupled to adjacent layers by first interconnects having a pitch of less than 10 micrometers between adjacent first interconnects; an end layer in the plurality of layers proximate to a first side of the plurality of layers comprises a dielectric material around IC dies in the end layer and a through-dielectric via (TDV) in the dielectric material of the end layer; a support structure coupled to the first side of the plurality of layers, the support structure comprising a structurally stiff base with conductive traces proximate to the end layer, the conductive traces coupled to the end layer by second interconnects; and a package substrate coupled to a second side of the plurality of layers, the second side being opposite to the first side.

Abstract: Embodiments herein describe techniques for an IC package including a supporting layer having a first zone and a second zone. An electronic component is placed above the first zone of the supporting layer. An underfill material is formed above the first zone of the supporting layer, around or below the electronic component to support the electronic component. The second zone of the supporting layer includes a base area and multiple micro-pillars above the base area, where any two micro-pillars of the multiple micro-pillars are separated by a gap in between. The second zone has a hydrophobic surface including surfaces of the multiple micro-pillars and surfaces of the base area. The second zone is a keep out zone to prevent the underfill material from entering the second zone. Other embodiments may be described and/or claimed.

Abstract: An inductor structure, a package substrate, an integrated circuit device, an integrated circuit device assembly and a method of fabricating the inductor structure. The inductor structure includes: an electrically conductive body; and a magnetic structure including a non-electrically-conductive magnetic material, wherein: one of the magnetic structure or the electrically conductive body wraps around another one of the magnetic structure or the electrically conductive body to form the inductor structure therewith; and at least one of the electrically conductive body or the magnetic structure has a granular microstructure including randomly distributed particles presenting substantially non-linear particle-to-particle boundaries with one another.

Abstract: Disclosed herein are integrated circuit (IC) packages, antenna boards, antenna modules, and communication devices (e.g., for millimeter wave communications). For example, in some embodiments, an antenna module may include: a logic die; a radio frequency front-end (RFFE) die in electrical communication with the logic die; and an antenna patch, wherein the RFFE die is closer to the antenna patch than the logic die is to the antenna patch.

Abstract: Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a first dielectric material including first conductive pathways through the first dielectric material, the first dielectric material having a first surface and an opposing second surface, wherein the first surface includes conductive contacts having a first pitch between 170 microns and 400 microns; a first die, coupled to the second surface of the first dielectric material; a second dielectric material, on the first die, including second conductive pathways through the second dielectric material, the second dielectric material having a third surface and an opposing fourth surface; and a second die coupled to the fourth surface of the second dielectric material by interconnects having a second pitch between 18 microns and 150 microns.

Abstract: Embodiments of the present disclosure provide a microelectronic assembly comprising: an integrated circuit (IC) die in a first layer and a plurality of IC dies in a second layer, at least two adjacent IC dies in the plurality being electrically coupled along their proximate edges by the IC die. The first layer and the second layer are electrically and mechanically coupled by interconnects having a pitch of less than 10 micrometers between adjacent interconnects, and the IC die comprises capacitors and voltage regulator circuitry.

Abstract: In accordance with disclosed embodiments, there is an antenna package using a ball attach array to connect an antenna and base substrates of the package. One example is an RF module package including an RF antenna package having a stack material in between a top and a bottom antenna layer to form multiple antenna plane surfaces, a base package having alternating patterned conductive and dielectric layers to form routing through the base package, and a bond between a bottom surface of the antenna package and to a top surface of the base package.

Abstract: Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a first redistribution layer (RDL), having a first surface with first conductive contacts having a first pitch between 170 microns and 400 microns, an opposing second surface, and first conductive pathways between the first and second surfaces; a first die and a conductive pillar in a first layer on the first RDL; a second RDL on the first layer, the second RDL having a first surface, an opposing second surface with second conductive contacts having a second pitch between 18 microns and 150 microns, and second conductive pathways between the first and second surfaces; and a second die, in a second layer on the second RDL, electrically coupled to the first conductive contacts via the first conductive pathways, the conductive pillar, the second conductive pathways, and the second conductive contacts.

Abstract: Disclosed herein are integrated circuit (IC) packages, antenna boards, antenna modules, and communication devices (e.g., for millimeter wave communications). For example, in some embodiments, an antenna module may include: a logic die; a radio frequency front-end (RFFE) die in electrical communication with the logic die; and an antenna patch, wherein the RFFE die is closer to the antenna patch than the logic die is to the antenna patch.

Abstract: In one embodiment, a base die apparatus includes a conformal power delivery structure comprising a first electrically conductive layer defining one or more recesses, and a second electrically conductive layer at least partially within the recesses of the first electrically conductive layer and having a lower surface that generally conforms with the upper surface of the first electrically conductive layer. The conformal power delivery structure also includes a dielectric material between the surfaces of the first electrically conductive layer and the second electrically conductive layer that conform with one another. The conformal power delivery structure may be connected to connection pads of the base die apparatus, e.g., to provide power delivery to integrated circuit (IC) chips connected to the base die apparatus. The base die apparatus also includes bridge circuitry to connect IC chips with one another.

Abstract: Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a first die, having a first surface and an opposing second surface, in a first layer; a redistribution layer (RDL) on the first layer, wherein the RDL is electrically coupled to the second surface of the first die by solder interconnects, and a second die in a second layer on the RDL, wherein the second die is electrically coupled to the RDL by non-solder interconnects.

Abstract: Disclosed herein are integrated circuit (IC) packages, antenna boards, antenna modules, and communication devices (e.g., for millimeter wave communications). For example, in some embodiments, an antenna module may include: a logic die; a radio frequency front-end (RFFE) die in electrical communication with the logic die; and an antenna patch, wherein the RFFE die is closer to the antenna patch than the logic die is to the antenna patch.

Abstract: In one embodiment, an apparatus includes a first die with voltage regulator circuitry and a second die with logic circuitry. The apparatus further includes an inductor, a capacitor, and a conformal power delivery structure on the top side of the apparatus, where the voltage regulator circuitry is connected to the logic circuitry through the inductor, the capacitor, and the conformal power delivery structure. The conformal power delivery structure includes a first electrically conductive layer defining one or more recesses, a second electrically conductive layer at least partially within the recesses of the first electrically conductive layer and having a lower surface that generally conforms with the upper surface of the first electrically conductive layer, and a dielectric material between the surfaces of the first electrically conductive layer and the second electrically conductive layer that conform with one another.

Abstract: Disclosed herein are radio frequency (RF) front-end structures, as well as related methods and devices. In some embodiments, an RF front-end package may include an RF package substrate including an embedded passive circuit element. At least a portion of the embedded passive circuit element may be included in a metal layer of the RF package substrate. The RF package substrate may also include a ground plane in the metal layer.

Abstract: Embodiments disclosed herein include coreless interposers with embedded inductors. In an embodiment, a coreless interposer comprises a plurality of buildup layers, where electrical routing is provided in the plurality of buildup layers. In an embodiment, the coreless interposer further comprises an inductor embedded in the plurality of buildup layers. In an embodiment, the inductor comprises a magnetic shell, and a conductive lining over an interior surface of the magnetic shell.

Abstract: Embodiments include inductors and methods to form the inductors. An inductor includes a substrate layer that surrounds a magnetic layer, where the magnetic layer is embedded between the substrate layer. The inductor also includes a dielectric layer that surrounds the substrate and magnetic layers, where the dielectric layer fully embeds the substrate and magnetic layers. The inductor further includes a first conductive layer over the dielectric layer, a second conductive layer below the dielectric layer, and a plurality of plated-through-hole (PTH) vias in the dielectric and substrate layers. The PTH vias vertically extend from the first conductive layer to the second conductive layer, and the magnetic layer in between the PTH vias. The magnetic layer may have a thickness that is substantially equal to a thickness of the substrate layer, where the thickness of the magnetic layer is less than a thickness defined between the first and second conductive layers.

Abstract: Disclosed herein are radio frequency (RF) front-end structures, as well as related methods and devices. In some embodiments, an RF front-end package may include an RF package substrate including an embedded passive circuit element. At least a portion of the embedded passive circuit element may be included in a metal layer of the RF package substrate. The RF package substrate may also include a ground plane in the metal layer.

Abstract: An integrated circuit (IC) die package substrate comprises a first trace upon, or embedded within, a dielectric material. The first trace comprises a first metal and a first via coupled to the first trace. The first via comprises the first metal and a second trace upon, or embedded within, the dielectric material. A second via is coupled to the second trace, and at least one of the second trace or the second via comprises a second metal with a different microstructure or composition than the first metal.

Abstract: Embodiments disclosed herein include power transformers for microelectronic devices. In an embodiment, a power transformer comprises a magnetic core that is a closed loop with an inner dimension and an outer dimension, and a primary winding around the magnetic core. In an embodiment, the primary winding has a first number of first turns connected in series around the magnetic core. In an embodiment, a secondary winding is around the magnetic core, and the secondary winding has a second number of second turns around the magnetic core. In an embodiment, individual ones of the second turns comprise a plurality of secondary segments connected in parallel.