A wafer chip scale package (WCSP) includes a substrate including a semiconductor surface including circuitry electrically connected to die bond pads exposed by a passivation layer, and a top dielectric layer over the passivation layer. A dielectric layer bounded (DLB) cavity formed in the top dielectric layer includes a first cavity being a center through-cavity bounded by a second cavity being a partial through-cavity, the DLB cavity is lined with a seed layer. A capping dielectric layer that covers the DLB cavity except for an aperture over the first cavity. A cavity metal that is generally configured as an integral structure of continuous metal material having no interfaces is for filling the DLB cavity to form a metal filled cavity including over the aperture that has an electrical connection to the die bond pads. A solder ball over the cavity metal is positioned over the aperture.

Discussed generally herein are methods and devices including or providing a redistribution layer device without under ball metallization. A device can include a substrate, electrical interconnect circuitry in the substrate, redistribution layer (RDL) circuitry electrically connected to the electrical interconnect circuitry, a conductive bump electrically connected to the RDL circuitry, the conductive bump interfacing directly with the RDL circuitry, and a sheet molding material over the substrate.

A semiconductor structure and a method of manufacturing the semiconductor structure are provided. The semiconductor structure includes a substrate including a plurality of pads spaced apart from each other, a first groove, and a second groove connected with the first groove, the first and the second grooves located in the substrate. The first groove is located on the side of the second groove away from the plurality of pads, and the bottom of the second groove exposes a corresponding pad of the plurality of pads. The orthographic projection of the second groove on the substrate is located within the orthographic projection of the first groove on the substrate. A redistribution layer is disposed on a surface of the corresponding pad, the inner wall of the first groove, and the inner wall and the bottom of the second groove. The semiconductor structure prevents contamination or damage of test probes.

A semiconductor structure and a manufacturing method thereof are provided. The semiconductor structure includes a substrate, a semiconductor device, an interconnect structure, a capacitor, and a plurality of pads. The semiconductor device is disposed at the substrate. The interconnect structure is disposed on the substrate and electrically connected to the semiconductor device. The capacitor is disposed on the interconnect structure and electrically connected to the interconnect structure. The capacitor includes a first electrode, a second electrode covering a top surface and a sidewall of the first electrode, and an insulating layer disposed between the first electrode and the second electrode. The plurality of pads are disposed on the interconnect structure and electrically connected to the interconnect structure, wherein at least one of the plurality of pads is electrically connected to the capacitor.

A semiconductor device has a conductive via in a first surface of a substrate. A first interconnect structure is formed over the first surface of the substrate. A first bump is formed over the first interconnect structure. The first bump is formed over or offset from the conductive via. An encapsulant is deposited over the first bump and first interconnect structure. A portion of the encapsulant is removed to expose the first bump. A portion of a second surface of the substrate is removed to expose the conductive via. The encapsulant provides structural support and eliminates the need for a separate carrier wafer when thinning the substrate. A second interconnect structure is formed over the second surface of the substrate. A second bump is formed over the first bump. A plurality of semiconductor devices can be stacked and electrically connected through the conductive via.

An object of the present invention is to provide a circular support substrate that allows for positioning based solely on its outer periphery shape. As a means for solving the problems, a circular support substrate is provided that has at least three chords along its circumference, wherein the chords are provided at positions where they do not run linearly symmetrical to the straight line passing through the center axis of the circular support substrate.

A wafer level package device, electronic device, and fabrication methods for fabrication of the wafer level package device are described that include forming an exposed lead tip on the wafer level package for providing a solder buttress structure when coupling the wafer level package device to another electrical component. In implementations, the wafer level package device includes at least one integrated circuit die, a metal pad, a first dielectric layer, a redistribution layer, a second dielectric layer, a pillar structure, a molding layer, a pillar layer, and a plating layer, where the pillar layer is sawn to form pad contacts on at least two sides of the wafer level package device. The exposed pad contact facilitate a solder fillet and buttress structure resulting in improved board level reliability.

A photo-emission semiconductor device superior in reliability is provided. The photo-emission semiconductor device includes a semiconductor layer, a light reflection layer provided on the semiconductor layer, and a protective layer formed by electroless plating to cover the light reflection layer. Therefore, even if the whole structure is reduced in size, the protective layer reliably covers the light reflection layer without gap.

In an embodiment, a device includes: an interposer; a first integrated circuit device bonded to the interposer with dielectric-to-dielectric bonds and with metal-to-metal bonds; a second integrated circuit device bonded to the interposer with dielectric-to-dielectric bonds and with metal-to-metal bonds; a buffer layer around the first integrated circuit device and the second integrated circuit device, the buffer layer including a stress reduction material having a first Young's modulus; and an encapsulant around the buffer layer, the first integrated circuit device, and the second integrated circuit device, the encapsulant including a molding material having a second Young's modulus, the first Young's modulus less than the second Young's modulus.

An inventive semiconductor device includes: a semiconductor chip including an integrated circuit; a plurality of electrode pads provided on the semiconductor chip and connected to the integrated circuit; a rewiring to which the electrode pads are electrically connected together, the rewiring being exposed on an outermost surface of the semiconductor chip and having an exposed surface area greater than the total area of the electrode pads; and a resin package which seals the semiconductor chip.