Abstract: Packaged semiconductor devices are disclosed, comprising: a semiconductor die having a top major surface with a plurality of contact pads thereon, and four sides, wherein the sides are stepped such that a lower portion of each side extends laterally beyond a respective upper portion; encapsulating material encapsulating the top major surface and the upper portion of each of the sides wherein the semiconductor die is exposed at the lower portion of each of the sides; a contact-redistribution structure on the encapsulating material over the top major surface of the semiconductor die; a plurality of metallic studs extending through the encapsulating material, and providing electrical contact between the contact pads and the contact-redistribution structure. Corresponding methods are also disclosed.

Abstract: A leadless semiconductor package includes an integrated circuit (IC) die having one or more contacts at an active surface facing a mounting surface of the leadless semiconductor package. The leadless semiconductor package further includes a plurality of dual-sided stud structures providing electrical connectivity between the IC die and the mounting surface, each dual-sided stud structure having at least one first conductive pillar structure extending from a corresponding contact at the active surface to a redistribution layer and having at least one second conductive pillar structure extending from a redistribution layer to an edge of the mounting surface, each first conductive pillar structure having a first dimension in a direction parallel to the mounting surface that is less than a corresponding second dimension of each second conductive pillar structure. Solder wettable flanks may be formed at the external sidewall edges of the second conductive pillar structures to facilitate soldering or inspection.

Abstract: Packaged semiconductor devices are disclosed, comprising: a semiconductor die having a top major surface with a plurality of contact pads thereon, and four sides, wherein the sides are stepped such that a lower portion of each side extends laterally beyond a respective upper portion; encapsulating material encapsulating the top major surface and the upper portion of each of the sides wherein the semiconductor die is exposed at the lower portion of each of the sides; a contact-redistribution structure on the encapsulating material over the top major surface of the semiconductor die; a plurality of metallic studs extending through the encapsulating material, and providing electrical contact between the contact pads and the contact-redistribution structure. Corresponding methods are also disclosed.

Abstract: A method of forming a semiconductor device is provided. The method includes forming a first cavity at a first major surface of a first encapsulant. A first semiconductor die is affixed on the first major surface of the first encapsulant and a second semiconductor die is affixed on a bottom surface of the first cavity. A second encapsulant encapsulates the first semiconductor die, the second semiconductor die, and at least exposed portions of the first major surface of the first encapsulant. A package substrate is formed on a first major surface of the second encapsulant. The package substrate includes conductive traces interconnected to the first semiconductor die and the second semiconductor die.

Abstract: A method for forming a packaged integrated circuit device includes providing a semiconductor wafer having a plurality of integrated circuit devices, each integrated circuit device extending into the semiconductor wafer to a first depth, and grinding a backside of the silicon wafer to no more than the first depth. The method further includes forming a backside cut between the integrated circuit devices. The backside cut extends to within the first depth, but the backside cut does not extend completely through the semiconductor wafer. The backside cut exposes a plurality of edges of each of the integrated circuit devices. The method further includes depositing, on the backside of the wafer, a metallization layer on a bottom surface of the integrated circuit devices and on the edges.

Abstract: A method of forming a semiconductor device is provided. The method includes forming a first cavity at a first major surface of a first encapsulant. A first semiconductor die is affixed on the first major surface of the first encapsulant and a second semiconductor die is affixed on a bottom surface of the first cavity. A second encapsulant encapsulates the first semiconductor die, the second semiconductor die, and at least exposed portions of the first major surface of the first encapsulant. A package substrate is formed on a first major surface of the second encapsulant. The package substrate includes conductive traces interconnected to the first semiconductor die and the second semiconductor die.

Abstract: A method of manufacturing a semiconductor device is provided. The method includes forming a redistribution layer (RDL) over a semiconductor die. A portion of the RDL contacts a die pad of the semiconductor die. A metal layer is formed on a top surface and sidewalls of the RDL and configured to encase the RDL. A non-conductive layer is formed over the metal layer and underlying RDL. An opening in the non-conductive layer is formed exposing a portion of the metal layer formed on the RDL. An under-bump metallization (UBM) is formed in the opening and conductively connected to the die pad by way of the metal layer and RDL.

Abstract: A method for forming a packaged integrated circuit device includes providing a semiconductor wafer having a plurality of integrated circuit devices, each integrated circuit device extending into the semiconductor wafer to a first depth, and grinding a backside of the silicon wafer to no more than the first depth. The method further includes forming a backside cut between the integrated circuit devices. The backside cut extends to within the first depth, but the backside cut does not extend completely through the semiconductor wafer. The backside cut exposes a plurality of edges of each of the integrated circuit devices. The method further includes depositing, on the backside of the wafer, a metallization layer on a bottom surface of the integrated circuit devices and on the edges.

Abstract: An IC package includes one or more microelectronic devices, a plurality of package bumps disposed at a first side, and a metal structure electrically connecting at least a first device contact pad of a first microelectronic device and at least a first package bump of the plurality of package bumps. The metal structure includes an RDL trace extending between a first region aligned with the first device contact pad and a second region aligned with the first package bump, wherein the first package bump is mechanically and electrically connected directly to the second region of the RDL trace. The metal structure further includes a first via extending between the first region of the RDL trace and the first device contact pad and further includes a set of one or more support studs extending from the second region to a support surface facing the first side.

Abstract: A method of forming a semiconductor device is provided. The method includes placing a semiconductor die and a leadframe on a carrier substrate. The semiconductor die includes a plurality of bond pads and the leadframe includes a plurality of leads. A first lead of the plurality of leads has a proximal end affixed to a first bond pad of the plurality of bond pads and a distal end placed on the carrier substrate. At least a portion of the semiconductor die and the leadframe is encapsulated with an encapsulant. The carrier substrate is separated from a first major side of the encapsulated semiconductor die and leadframe exposing a distal end portion of the first lead. A package substrate is applied on the first major side.

Abstract: A semiconductor device package includes a semiconductor device and an electrically conductive pad disposed in contact with a surface of the semiconductor device. The semiconductor device package further includes a redistribution layer (RDL) formed over the electrically conductive pad and the surface of the semiconductor device, and an electrical connector disposed over and electrically coupled to the RDL. The RDL includes a first passivation layer disposed over a surface of the semiconductor device and the electrically conductive pad, and further includes an RDL trace. The RDL trace includes a first portion in contact with the electrically conductive pad, a second portion in contact with one of the electrical connector or an underlying metallization layer in contact with the electrical connector, and a third portion having a non-planar and undulating configuration relative to the surface of the semiconductor device.

Abstract: An integrated circuit (IC) package includes one or more microelectronic devices disposed between a first side and an opposing second side of the IC package and further includes a metal frame structure comprising a metal layer disposed at the second side, an embedded ground plane (EGP) structure encircling the one or more microelectronic devices, and a set of stacked conductive structures extending from the EGP structure to the first side through a set of one or more redistribution layers at the first side. The IC package further can include an array of package contacts disposed at the first side and an encapsulant layer encapsulating the one or more microelectronic devices in a volume defined by an inner sidewall of the EGP structure.

Abstract: Semiconductor packages with embedded wiring on re-distributed bumps are described. In an illustrative, non-limiting embodiment, a semiconductor package may include an integrated circuit (IC) having a plurality of pads and a re-distribution layer (RDL) coupled to the IC without any substrate or lead frame therebetween, where the RDL comprises a plurality of terminals, and where one or more of the plurality of pads are wire bonded to a corresponding one or more of the plurality of terminals.

Abstract: Five-side mold protection for semiconductor packages is described. In an illustrative, non-limiting embodiment, a semiconductor package may include: a substrate comprising a top surface, a bottom surface, and four sidewalls; an electrical component comprising a backside and a frontside, where the frontside of the electrical component is coupled to the top surface of the substrate; and a molding compound, where the molding compound encapsulates the backside of the electrical component and the four sidewalls of the substrate.

Abstract: A method for forming a packaged integrated circuit device includes providing a semiconductor wafer having a plurality of integrated circuit devices, each integrated circuit device extending into the semiconductor wafer to a first depth, and grinding a backside of the silicon wafer to no more than the first depth. The method further includes forming a backside cut between the integrated circuit devices. The backside cut extends to within the first depth, but the backside cut does not extend completely through the semiconductor wafer. The backside cut exposes a plurality of edges of each of the integrated circuit devices. The method further includes depositing, on the backside of the wafer, a metallization layer on a bottom surface of the integrated circuit devices and on the edges.

Abstract: A method for manufacturing a packaged integrated circuit device includes providing a semiconductor wafer having a plurality of integrated circuit devices. Each integrated circuit device extends into the semiconductor wafer to a first depth. Prior to singulation of the integrated circuit devices on the semiconductor wafer, the method further includes forming a cut between the integrated circuit devices. The cut extends to at least the first depth, but does not extend completely through the semiconductor wafer. The cut exposes a plurality of edges of each of the integrated circuit devices. The method further includes depositing, on each integrated circuit device, a passivation layer on a top surface and on the edges.

Abstract: A packaging semiconductor device, such as a fan-out Wafer-Level Packaging (FOWLP) device, is fabricated by providing a semiconductor device (20) having conductive patterns (22) disposed on a first surface and then forming, on the conductive patterns, photoresist islands (24) having a first predetermined shape defined by a first critical width dimension and a minimum height dimension so that a subsequently-formed dielectric polymer layer (26) surrounds but does not cover each photoresist island (24), thereby allowing each photoresist island to be selectively removed from the one or more conductive patterns to form one or more via openings (28) in the dielectric polymer layer such that each via opening has a second predetermined shape which matches at least part of the first predetermined shape of the photoresist islands.

Abstract: Packaged semiconductor devices are disclosed, comprising: a semiconductor die having a top major surface with a plurality of contact pads thereon, and four sides, wherein the sides are stepped such that a lower portion of each side extends laterally beyond a respective upper portion; encapsulating material encapsulating the top major surface and the upper portion of each of the sides wherein the semiconductor die is exposed at the lower portion of each of the sides; a contact-redistribution structure on the encapsulating material over the top major surface of the semiconductor die; a plurality of metallic studs extending through the encapsulating material, and providing electrical contact between the contact pads and the contact-redistribution structure. Corresponding methods are also disclosed.

Abstract: A packaging semiconductor device, such as a fan-out Wafer-Level Packaging (FOWLP) device, is fabricated by providing a semiconductor device (20) having conductive patterns (22) disposed on a first surface and then forming, on the conductive patterns, photoresist islands (24) having a first predetermined shape defined by a first critical width dimension and a minimum height dimension so that a subsequently-formed dielectric polymer layer (26) surrounds but does not cover each photoresist island (24), thereby allowing each photoresist island to be selectively removed from the one or more conductive patterns to form one or more via openings (28) in the dielectric polymer layer such that each via opening has a second predetermined shape which matches at least part of the first predetermined shape of the photoresist islands.