A semiconductor package includes a semiconductor chip having an active surface on which a connection pad is disposed and an inactive surface opposing the active surface, and a first encapsulant covering at least a portion of each of the inactive surface and a side surface of the semiconductor chip. A metal layer is disposed on the first encapsulant, and includes a first conductive layer and a second conductive layer, sequentially stacked. A connection structure is disposed on the active surface of the semiconductor chip, and includes a first redistribution layer electrically connected to the connection pad. A lower surface of the first conductive layer is in contact with the first encapsulant and has first surface roughness, and an upper surface of the first conductive layer is in contact with the second conductive layer and has second surface roughness smaller than the first surface roughness.

A semiconductor package includes a chip level unit including a semiconductor chip; a medium level unit; and a solder ball unit. The solder ball unit is to be connected to a circuit substrate. The medium level unit includes: a wiring pad layer on a first protection layer; a second protection layer including a pad-exposing hole on the first protection layer, a post layer in the pad-exposing hole on the wiring pad layer; and a third protection layer including a post-exposing hole on the second protection layer. A width or diameter of the post-exposing hole is smaller than a width or diameter of the pad-exposing hole; and a barrier layer is disposed in the post-exposing hole on the post layer. The solder ball unit includes a solder ball on the barrier layer.

Disclosed herein are cavity structures in integrated circuit (IC) package supports, as well as related methods and apparatuses. For example, in some embodiments, an IC package support may include: a cavity in a dielectric material, wherein the cavity has a bottom and sidewalls; conductive contacts at the bottom of the cavity, wherein the conductive contacts include a first material; a first peripheral material outside the cavity, wherein the first peripheral material is at the sidewalls of the cavity and proximate to the bottom of the cavity, and the first peripheral material includes the first material; and a second peripheral material outside the cavity, wherein the second peripheral material is at the sidewalls of the cavity and on the first peripheral material, and the second peripheral material is different than the first peripheral material.

A monolithic microwave integrated circuit (MMIC) with embedded transmission line (ETL) ground shielding is provided. In an exemplary aspect, an ETL MMIC according to this disclosure includes a MMIC substrate having an active side, an ETL dielectric layer covering the active side, and a topside ground plane over the ETL dielectric layer. The active side includes one or more transmission lines or other components which may undesirably couple to metal signal lines (e.g., package metal interconnects) in an external circuit assembly. The topside ground plane in the ETL MMIC provides shielding to reduce such electromagnetic coupling. The topside ground plane can also facilitate improved thermal paths for heat dissipation, such as through a redistribution layer (RDL) to a next higher assembly (NHA) and/or through a backside ground plane of the MMIC substrate.

A method of forming an assembly is provided. The method includes attaching a packaged semiconductor device to a substrate. An isolation structure is formed and located between the packaged semiconductor device and the substrate. An underfill material is dispensed between the packaged semiconductor device and the substrate. The isolation structure prevents the underfill material from contacting a first conductive connection formed between the packaged semiconductor device and the substrate.

A package includes at least one memory component and an insulating encapsulation. The at least one memory component includes a stacked memory structure and a plurality of conductive posts. The stacked memory structure is laterally encapsulated in a molding compound. The conductive posts are disposed on an upper surface of the stacked memory structure. The upper surface of the stacked memory structure is exposed from the molding compound. The insulating encapsulation encapsulates the at least one memory component. The top surfaces of the conductive posts are exposed form the insulating encapsulation. A material of the molding compound is different a material of the insulating encapsulation.

Semiconductor device assemblies are provided with a package substrate including one or more layers of thermally conductive material configured to conduct heat generated by one or more of semiconductor dies of the assemblies laterally outward towards an outer edge of the assembly. The layer of thermally conductive material can comprise one or more allotropes of carbon, such as diamond, graphene, graphite, carbon nanotubes, or a combination thereof. The layer of thermally conductive material can be provided via deposition (e.g., sputtering, PVD, CVD, or ALD), via adhering a film comprising the layer of thermally conductive material to an outer surface of the package substrate, or via embedding a film comprising the layer of thermally conductive material to within the package substrate.

A package substrate of a semiconductor package includes conductive lines of a first layer disposed on a first surface of a base layer and conductive lines of a second layer disposed on a second surface of the base layer. An opening hole located between a first remaining portion and a second remaining portion to separate the first and second remaining portions from each other. The first remaining portion is electrically connected to a first conductive line among the conductive lines of the second layer, and the second remaining portion is electrically connected to a second conductive line among the conductive lines of the second layer.

A semiconductor structure comprises a semiconductor substrate, a first trench capacitor, and a second trench capacitor. The substrate has first trenches arranged in a first arrangement direction with each first trench extending in a first extension direction and second trenches arranged in a second arrangement direction with each second trench extending in a second extension direction. The first trench capacitor includes first capacitor segments disposed inside the first trenches. The second trench capacitor includes second capacitor segments disposed inside the second trenches. One first capacitor segment of the first capacitor segments has an extending length different from that of another first capacitor segment of the first capacitor segments, and one second capacitor segment of the second capacitor segments has an extending length different from that of another second capacitor segment of the second capacitor segments.

A semiconductor package includes: a first redistribution layer; a first semiconductor chip including a first side and a second side, wherein the first side faces the first redistribution layer; a first sealing material covering the second side of the first semiconductor chip and having a first filler content; a second sealing material formed on the first sealing material and having a second filler content lower than the first filler content; and a second redistribution layer disposed on the second sealing material.