Abstract: A packaged radio-frequency device is disclosed, including a packaging substrate configured to receive one or more components, the packaging substrate including a first side and a second side. The packaging substrate may include a first component mounted on the first side of the packaging substrate and a first overmold structure implemented on the first side of the packaging substrate, the first overmold structure substantially encapsulating the first component. The packaging substrate may further include a set of through-mold connections implemented on the second side of the packaging substrate, the set of through-mold connections including signal pins and ground pins, a second component mounted on the second side of the packaging substrate, the second component being located in an area of the second side configured to implement redundant ground pins and a second overmold structure substantially encapsulating one or more of the second component or the set of through-mold connections.

Abstract: Disclosed herein are methods of fabricating a packaged radio-frequency (RF) device. The disclosed methods use a film during fabrication to control the distribution of an under-fill material between one or more components and a packaging substrate. The method includes mounting components to a first side of a packaging substrate and applying a film to a second side of a packaging substrate. The method also includes mounting a lower component to the second side of the packaging substrate and under-filling the lower component mounted on the second side of the packaging substrate with an under-filling agent. The method also includes removing the film on the second side of the packaging substrate and mounting solder balls to the second side of the packaging substrate after removal of the film.

Abstract: Controlled standoff for module with ball grid array. In some embodiments, a packaged module can include a packaging substrate having an underside, and an arrangement of conductive features implemented on the underside of the packaging substrate to define an underside area and to allow mounting of the packaged module on a circuit board. The packaged module can further include an underside component mounted to the underside of the packaging substrate within the underside area. The packaged module can further include one or more standoff structures implemented on the underside of the packaging substrate and configured to inhibit damage to the underside component when some or all of the arrangement of conductive features collapses during or after mounting of the packaged module on the circuit board.

Abstract: Devices and methods are disclosed, related to shielding and packaging of radio-frequency (RF) devices on substrates. In some embodiments, A radio-frequency (RF) module comprises a lead-frame package with a plurality of pins and at least one pin exposed from overmold compound. The module further includes a metal-based covering over a portion of the lead-frame package. Additionally, the metal-based covering can be in contact with the at least one pin.

Abstract: Disclosed are apparatus and methods related to ground paths implemented with surface mount devices to facilitate shielding of radio-frequency (RF) modules. In some embodiments, a method for fabricating a radio-frequency module includes providing a packaging substrate, the packaging substrate configured to receive a plurality of components and the packaging substrate including a ground plane. In some embodiments, the method includes mounting a surface mount device on the packaging substrate, and forming or providing a conductive layer over the surface mount device such that the surface mount device electrically connects the conductive layer with the ground plane to thereby provide radio-frequency shielding between first and second regions about the surface mount device.

Abstract: Single-die or multi-die packaged modules that incorporate three-dimensional integration of active devices with discrete passive devices to create a package structure that allows active devices (such as, silicon or gallium-arsenide devices) to share the same footprint area as an array of passive surface mount components. In one example, a module includes at least one active device stacked on top of an array of passive surface mount components on a substrate. A conductive or non-conductive adhesive can be used to adhere the active device to the array of passive devices.

Abstract: A method for manufacturing packaged radio-frequency devices is disclosed, including providing a packaging substrate configured to receive a plurality of components, the packaging substrate including a first side and a second side. The method further includes forming a shielded package on the first side of the packaging substrate, the shielded package including a first circuit and a first overmold structure, the shielded package configured to provide radio-frequency shielding for at least a portion of the first circuit. The method includes mounting a component on the second side of the packaging substrate, forming a second overmold structure over the component and forming a set of cavities in the second overmold structure, the set of cavities positioned relative to the component. The method includes forming a set of through-mold connections in the set of cavities in the second overmold structure.

Abstract: A packaged radio-frequency device is disclosed, including a packaging substrate configured to receive one or more components, the packaging substrate including a first side and a second side. A shielded package may be implemented on the first side of the packaging substrate, the shielded package including a first circuit and a first overmold structure, the shielded package configured to provide radio-frequency shielding for at least a portion of the first circuit. A set of through-mold connections may be implemented on the second side of the packaging substrate, the set of through-mold connections defining a mounting volume on the second side of the packaging substrate. The device may include a component implemented within the mounting volume and a second overmold structure substantially encapsulating one or more of the component or the set of through-mold connections.

Abstract: A method for manufacturing packaged radio-frequency devices is disclosed, including providing a packaging substrate configured to receive a plurality of components, the packaging substrate including a first side and a second side. The method includes forming a shielded package on the first side of the packaging substrate, the shielded package including a first circuit and a first overmold structure, the shielded package configured to provide RF shielding for at least a portion of the first circuit. The method further includes mounting a component on the second side of the packaging substrate and arranging a set of through-mold connections on the second side of the packaging substrate such that the set of through-mold connections is positioned relative to the component. The method includes forming a second overmold structure over the component and the set of through-mold connections and removing a portion of the second overmold structure.

Abstract: Aspects of the present disclosure relate to determining the location and/or density of vias that form part of an RF isolation structure of a packaged module and the resulting RF isolation structures. From electromagnetic interference (EMI) data, locations of where via density can be increased and/or decreased without significantly degrading the EMI performance of the RF isolation structure can be identified. In certain embodiments, one or more vias can be added and/or removed from a selected area of the packaged module based on the EMI data.

Abstract: Shielded radio-frequency (RF) module having reduced area. In some embodiments, a method for fabricating a radio-frequency module includes forming or providing a packaging substrate configured to receive a plurality of components. The method may include mounting one or more devices on the packaging substrate such that the packaging substrate includes a first area associated with mounting of each of the one or more devices. In some embodiments, the method further includes forming a plurality of shielding wirebonds on the packaging substrate to provide RF shielding functionality for one or more regions on the packaging substrate, such that the packaging substrate includes a second area associated with formation of each shielding wirebond, the mounting of each device implemented with respect to a corresponding shielding wirebond such that a portion of the first area associated with the device overlaps at least partially with a portion of the second area associated with the corresponding shielding wirebond.

Abstract: Aspects of the present disclosure relate to determining a layout of a racetrack that forms part of an RF isolation structure of a packaged module and the resulting RF isolation structures. Locations of where the racetrack can be adjusted (for example, narrowed) and/or removed without significantly degrading the EMI performance of the RF isolation structure can be identified. In certain embodiments, a portion of the racetrack can be removed to create a break and/or a portion of the racetrack can be narrowed in a selected area.

Abstract: Described herein are radio-frequency (RF) modules that include shielding for improved RF performance. The RF modules including a packaging substrate with a receiving system implemented thereon. The RF module includes a shield implemented to provide RF shielding for at least a portion of the receiving system. The receiving system can include any combination of pre-amplifier or post-amplifier bandpass filters, amplifiers, switching networks, impedance matching components, phase-shifting components, input multiplexers, and output multiplexers. The shielding can include a conductive layer within a conformal shielding on an upper side and side walls of the RF module. The shielding can be an overmold formed over the packaging substrate. The conductive layer can be connected to one or more ground planes. The packaging substrate can include contact features on an underside of the substrate for mounting an underside component.

Abstract: Disclosed are devices and methods related to a conductive paint layer configured to provide radio-frequency (RF) shielding for a packaged semiconductor module. Such a module can include a packaging substrate, one or more RF components mounted on the packaging substrate, a ground plane disposed within the packaging substrate, and a plurality of RF-shielding wirebonds disposed on the packaging substrate and electrically connected to the ground plane. The module can further include an overmold structure formed over the packaging substrate and dimensioned to substantially encapsulate the RF component(s) and the RF-shielding wirebonds. The overmold structure can define an upper surface that exposes upper portions of the RF-shielding wirebonds. The module can further include a conductive paint layer having silver flakes disposed on the upper surface of the overmold structure so that the conductive paint layer, the RF-shielding wirebonds, and the ground plane form an RF-shield for the RF component(s).

Abstract: Disclosed are apparatus and methods related to ground paths implemented with surface mount devices to facilitate shielding of radio-frequency (RF) modules. In some embodiments, a module can include a packaging substrate configured to receive a plurality of components. The module can further include an RF component mounted on the packaging substrate and configured to facilitate processing of an RF signal. The module can further include an RF shield disposed relative to the RF component, with the RF shield being configured to provide shielding for the RF component. The RF shield can include at least one shielding-component configured to provide one or more electrical paths between a conductive layer on an upper surface of the module and a ground plane of the packaging substrate. The shielding-component can include a surface-mount device such as an RF filter implemented as a chip size surface acoustic wave (SAW) device (CSSD).

Abstract: Shielded radio-frequency (RF) module having reduced area. In some embodiments, an RF module can include a packaging substrate configured to receive a plurality of components, and a plurality of shielding wirebonds implemented on the packaging substrate and configured to provide RF shielding functionality for one or more regions on the packaging substrate. The packaging substrate can include a first area associated with implementation of each shielding wirebond. The RF module can further include one or more devices mounted on the packaging substrate. The packaging substrate can further include a second area associated with mounting of each of the one or more devices. Each device can be mounted with respect to a corresponding shielding wirebond such that the second area associated with the device overlaps at least partially with the first area associated with the corresponding shielding wirebond.

Abstract: Devices and methods are disclosed, related to shielding and packaging of radio-frequency (RF) devices on substrates. In some embodiments, A radio-frequency (RF) module comprises a lead-frame package with a plurality of pins and at least one pin exposed from overmold compound. The module further includes a metal-based covering over a portion of the lead-frame package. Additionally, the metal-based covering can be in contact with the at least one pin.

Abstract: Aspects of the present disclosure relate to determining a layout of a racetrack that forms part of an RF isolation structure of a packaged module and the resulting RF isolation structures. The racetrack layout can be determined based on identifying low radiating areas of a module and/or areas of a module that are less sensitive to external radiation. The racetrack can be disposed below a surface of a module on which a radio frequency component is disposed. The racetrack and a conductive layer over the radio frequency component can form part of a radio frequency isolation structure around the RF component.

Abstract: Devices and methods related to packaging of radio-frequency (RF) devices on ceramic substrates. In some embodiments, a packaged electronic device can include a ceramic substrate configured to receive one or more components. The ceramic substrate can include a conductive layer in electrical contact with a ground plane. The packaged electronic device can further include a die having an integrated circuit and mounted on a surface of the ceramic substrate. The packaged electronic device can further include a conformal conductive coating implemented over the die to provide shielding functionality. The packaged electronic device can further include an electrical connection between the conformal conductive coating and the conductive layer.

Abstract: Disclosed are devices and methods related to a conductive paint layer configured to provide radio-frequency (RF) shielding for a packaged semiconductor module. Such a module can include a packaging substrate, one or more RF components mounted on the packaging substrate, a ground plane disposed within the packaging substrate, and a plurality of RF-shielding wirebonds disposed on the packaging substrate and electrically connected to the ground plane. The module can further include an overmold structure formed over the packaging substrate and dimensioned to substantially encapsulate the RF component(s) and the RF-shielding wirebonds. The overmold structure can define an upper surface that exposes upper portions of the RF-shielding wirebonds. The module can further include a conductive paint layer having silver flakes disposed on the upper surface of the overmold structure so that the conductive paint layer, the RF-shielding wirebonds, and the ground plane form an RF-shield for the RF component(s).