Disclosed are semiconductor packages and their fabrication methods. The semiconductor package includes a first substrate, a semiconductor device on the first substrate, a mold layer that covers the first substrate and the semiconductor device, a second substrate on the mold layer, and a mold via that penetrates the mold layer and connects the first substrate to the second substrate. The mold via has an upper sidewall and a lower sidewall. A surface roughness of the upper sidewall is greater than a surface roughness of the lower sidewall.

Provided is a redistribution structure having reduced parasitic capacitance. The redistribution structure may include a via layer and a wiring layer disposed on the via layer in a first direction perpendicular to the via layer, the wiring layer including a metal plate and a first insulation pattern configured to penetrate the metal plate in the first direction. An outer side surface of the first insulation pattern may be exposed from a side surface of the metal plate.

An electronic device includes a first semiconductor component, a second semiconductor component, an encapsulation layer, and a circuit layer. The encapsulation layer has a first side, and the encapsulation layer surrounds the first semiconductor component and the second semiconductor component. The circuit layer is disposed on the first side of the encapsulation layer. The encapsulation layer has a first thickness, and the first semiconductor component has a second thickness. The first thickness is greater than the second thickness. A difference between the first thickness and the second thickness is greater than half of the first thickness and less than three times the second thickness. In a top view, the encapsulation layer has a first area, the first semiconductor component has a second area, the second semiconductor component has a third area, and a sum of the second area and the third area is greater than half of the first area.

Disclosed herein is a multi-die device, and an integrated chip package assembly having the multi-die device. The multi-die device includes a first IC die and a second IC die disposed at a same tier; a first conductive pillar coupled with the first IC die; a second conductive pillar coupled with the second IC die; and an interconnecting die disposed between the first conductive pillar and the second conductive pillar and configured to couple with the first IC die and the second IC die. The multi-die device further includes a first interconnecting interface disposed on the first IC die; a second interconnecting interface disposed on the second IC die, the first interconnecting interface and the second interconnecting interface being separated by a molding material.

A semiconductor device has a substrate. A semiconductor die is disposed over the substrate. A first encapsulant is deposited over the semiconductor die. A ferromagnetic film is disposed over the first encapsulant. A second encapsulant is deposited over the ferromagnetic film. A shielding layer is optionally formed over the substrate, first encapsulant, and second encapsulant.

A microelectronic device is formed to include an embedded die substrate on an interposer; where the embedded die substrate is formed with no more than a single layer of transverse routing traces. In the device, all additional routing may be allocated to the interposer to which the embedded die substrate is attached. The embedded die substrate may be formed with a planarized dielectric formed over an initial metallization layer supporting the embedded die.

Microelectronic packages and methods of fabrication are described. In an embodiment, a redistribution layer spans across multiple components, and includes a region of patterned wiring traces that may mitigate stress in the RDL between the multiple components.

Systems and methods for measuring and predicting the strength of semiconductor devices and packaging are disclosed. In some embodiments, a semiconductor device assembly comprises a package substrate, a semiconductor die electrically coupled to the package substrate, and a molding covering at least a portion of the semiconductor die, where the molding includes a through-mold via (TMV) extending from an upper surface into the mold material to a depth. The semiconductor device assembly can include a strain gauge disposed in the molding at the depth of the TMV and be electrically coupled to the TMV. For example, the TMV can extend to the surface of the semiconductor die, to the package substrate, or other critical areas of the semiconductor device assembly, enabling strain to be measured at these depths. The semiconductor device assembly can be used in testing to predict the strength of the die and packaging in real-world scenarios, such as being dropped, bent, or crushed.

A package structure is provided. The package structure includes a substrate including a cavity and a plurality of thermal vias connecting a bottom surface of the cavity to a bottom surface of the substrate. The package structure also includes an electronic device disposed in the cavity and thermally coupled to the plurality of thermal vias. The package structure further includes a plurality of conductive connectors formed over the electronic device and vertically overlapping the plurality of thermal vias. The package structure also includes an encapsulating material extending from top surfaces of the plurality of conductive connectors to the bottom surface of the cavity. The package structure further includes an insulating layer formed over the encapsulating material and including a redistribution layer structure electrically connected to the electronic device through the plurality of conductive connectors.

A semiconductor package including a first lead comprising a first surface and a second surface that is opposite to the first surface, at least one semiconductor chip that is placed on the first surface of the first lead, a connecting structure body that is connected to the first lead, and a molding layer configured to cover the first lead and the semiconductor chip. The first lead comprises a recess that is formed on the second surface of the lead, and the connecting structure body is placed in the recess. The semiconductor chip, the first lead, and the connecting structure body are electrically connected to each other.