Abstract:
A contact pad includes a solder-wettable porous network (310) which wicks the molten solder (130) and thus restricts the lateral spread of the solder, thus preventing solder bridging between adjacent contact pads.
Abstract:
A contact pad includes a solder-wettable porous network (310) which wicks the molten solder (130) and thus restricts the lateral spread of the solder, thus preventing solder bridging between adjacent contact pads.
Abstract:
In a microelectronic component having conductive vias (114) passing through a substrate (104) and protruding above the substrate, one or more conductive features (120E.A, 120E.B, or both) are provided above the substrate that wrap around the conductive vias' protrusions (114′) to form capacitors, electromagnetic shields, and possibly other elements. Other features and embodiments are also provided.
Abstract:
HD color video using monochromatic CMOS image sensors integrated in a 3D package is provided. An example 3DIC package for color video includes a beam splitter to partition received light of an image stream into multiple light outputs. Multiple monochromatic CMOS image sensors are each coupled to one of the multiple light outputs to sense a monochromatic image stream at a respective component wavelength of the received light. Each monochromatic CMOS image sensor is specially constructed, doped, controlled, and tuned to its respective wavelength of light. A parallel processing integrator or interposer chip heterogeneously combines the respective monochromatic image streams into a full-spectrum color video stream, including parallel processing of an infrared or ultraviolet stream. The parallel processing of the monochromatic image streams provides reconstruction to HD or 4K HD color video at low light levels. Parallel processing to one interposer chip also enhances speed, spatial resolution, sensitivity, low light performance, and color reconstruction.
Abstract:
Two microelectronic components (110, 120), e.g. a die and an interposer, are bonded to each other. One of the components' contact pads (110C) include metal, and the other component has silicon (410) which reacts with the metal to form metal silicide (504). Then a hole (510) is made through one of the components to reach the metal silicide and possibly even the unreacted metal (110C) of the other component. The hole is filled with a conductor (130), possibly metal, to provide a conductive via that can be electrically coupled to contact pads (120C.B) attachable to other circuit elements or microelectronic components, e.g. to a printed circuit board.
Abstract:
A device and method of forming the device that includes cavities formed in a substrate of a substrate device, the substrate device also including conductive vias formed in the substrate. Chip devices, wafers, and other substrate devices can be mounted to the substrate device. Encapsulation layers and materials may be formed over the substrate device in order to fill the cavities.
Abstract:
Systems and methods for providing 3D wafer assembly with known-good-dies are provided. An example method compiles an index of dies on a semiconductor wafer and removes the defective dies to provide a wafer with dies that are all operational. Defective dies on multiple wafers may be removed in parallel, and resulting wafers with all good dies stacked in 3D wafer assembly. In an implementation, the spaces left by removed defective dies may be filled at least in part with operational dies or with a fill material. Defective dies may be replaced either before or after wafer-to-wafer assembly to eliminate production of defective stacked devices, or the spaces may be left empty. A bottom device wafer may also have its defective dies removed or replaced, resulting in wafer-to-wafer assembly that provides 3D stacks with no defective dies.
Abstract:
Semiconductor integrated circuits (110) or assemblies are disposed at least partially in cavities between two interposers (120). Conductive vias (204M) pass through at least one of the interposers or at least through the interposer's substrate, and reach a semiconductor integrated circuit or an assembly. Other conductive vias (204M.1) pass at least partially through multiple interposers and are connected to conductive vias that reach, or are capacitively coupled to, a semiconductor IC or an assembly. Other features are also provided.
Abstract:
A method of making an assembly can include forming a circuit structure defining front and rear surfaces, and forming a substrate onto the rear surface. The forming of the circuit structure can include forming a first dielectric layer coupled to the carrier. The first dielectric layer can include front contacts configured for joining with contacts of one or more microelectronic elements, and first traces. The forming of the circuit structure can include forming rear conductive elements at the rear surface coupled with the front contacts through the first traces. The forming of the substrate can include forming a dielectric element directly on the rear surface. The dielectric element can have first conductive elements facing the rear conductive elements and joined thereto. The dielectric element can include second traces coupled with the first conductive elements. The forming of the substrate can include forming terminals at a surface of the substrate.
Abstract:
Die (110) are attached to an interposer (420), and the interposer/die assembly is placed into a lid cavity (510). The lid (210) is attached to the top of the assembly, possibly to the encapsulant (474) at the top. The lid's legs (520) surround the cavity and extend down below the top surface of the interposer's substrate (420S), possibly to the level of the bottom surface of the substrate or lower. The legs (520) may or may not be attached to the interposer/die assembly. In fabrication, the interposer wafer (420SW) has trenches (478) which receive the lid's legs during the lid placement. The interposer wafer is later thinned to remove the interposer wafer portion below the legs and to dice the interposer wafer. The thinning process also exposes, on the bottom, conductive vias (450) passing through the interposer substrate. Other features are also provided.