Abstract:
The present disclosure relates to the field of fabricating microelectronic packages, wherein cavities are formed in a dielectric layer deposited on a first substrate to maintain separation between soldered interconnections. In one embodiment, the cavities may have sloped sidewalls. In another embodiment, a solder paste may be deposited in the cavities and upon heating solder structures may be formed. In other embodiments, the solder structures may be placed in the cavities or may be formed on a second substrate to which the first substrate may be connected. In still other embodiments, solder structures may be formed on both the first substrate and a second substrate. The solder structures may be used to form solder interconnects by contact and reflow with either contact lands or solder structures on a second substrate.
Abstract:
Embodiments of the present disclosure describe a wavy interconnect for bendable and stretchable devices and associated techniques and configurations. In one embodiment, an interconnect assembly includes a flexible substrate defining a plane and a wavy interconnect disposed on the flexible substrate and configured to route electrical signals of an integrated circuit (IC) device in a first direction that is coplanar with the plane, the wavy interconnect having a wavy profile from a second direction that is perpendicular to the first direction and coplanar with the plane. Other embodiments may be described and/or claimed.
Abstract:
Packaged semiconductor die and CTE-engineering die pairs and methods to form packaged semiconductor die and CTE-engineering die pairs are described. For example, a semiconductor package includes a substrate. A semiconductor die is embedded in the substrate and has a surface area. A CTE-engineering die is embedded in the substrate and coupled to the semiconductor die. The CTE-engineering die has a surface area the same and in alignment with the surface area of the semiconductor die.
Abstract:
The present disclosure relates to the field of fabricating microelectronic packages, wherein cavities are formed in a dielectric layer deposited on a first substrate to maintain separation between soldered interconnections. In one embodiment, the cavities may have sloped sidewalls. In another embodiment, a solder paste may be deposited in the cavities and upon heating solder structures may be formed. In other embodiments, the solder structures may be placed in the cavities or may be formed on a second substrate to which the first substrate may be connected. In still other embodiments, solder structures may be formed on both the first substrate and a second substrate. The solder structures may be used to form solder interconnects by contact and reflow with either contact lands or solder structures on a second substrate.
Abstract:
A thinned die is disposed on a heat sink and bonded by a thermal interface material (TIM) that includes a gold-tin solder. The thinned die exhibits a die-effective coefficient of thermal expansion (CTE) that substantially matches the CTE of the heat sink. A process of bonding the die includes thermal bonding. A process of bonding the thinned die to a heat sink before bonding the die to an electrical interposer. A computing system includes a semconductive die that is gold-tin bonded to the heat sink, and it is coupled to at least one input-output device.
Abstract:
Disclosed are embodiments of a substrate for an integrated circuit (IC) device. The substrate includes a core comprised of two or more discrete glass layers that have been bonded together. A separate bonding layer may be disposed between adjacent glass layers to couple these layers together. The substrate may also include build-up structures on opposing sides of the multi-layer glass core, or perhaps on one side of the core. Electrically conductive terminals may be formed on both sides of the substrate, and an IC die may be coupled with the terminals on one side of the substrate. The terminals on the opposing side may be coupled with a next-level component, such as a circuit board. One or more conductors extend through the multi-layer glass core, and one or more of the conductors may be electrically coupled with the build-up structures disposed over the core. Other embodiments are described and claimed.
Abstract:
An apparatus is described having a build-up layer. The build-up layer has a pad side of multiple die pressed into a bottom side of the build-up layer. The multiple die have wide pads to facilitate on wafer testing of the multiple die. The wide pads are spaced a minimum distance permitted by a manufacturing process used to manufacture their respective die. The build-up layer above the wide pads is removed. The apparatus also includes metallization on a top side of the build-up layer that substantially fills regions above the wide pads. The metallization includes lands above the wide pads and multiple wires between the wide pads.
Abstract:
A microelectronic package having an encapsulated substrate comprising a plurality of microelectronic devices encapsulated within an encapsulation material, wherein the encapsulated structure may have an active surface proximate the active surfaces of the plurality of microelectronic devices, and wherein at least one of the plurality of microelectronic devices may have a height greater than another of the plurality of microelectronic devices (e.g. non-coplanar). The microelectronic package further includes a bumpless build-up layer structure formed proximate the encapsulated structure active surface. The microelectronic package may also have an active surface microelectronic device positioned proximate the encapsulated structure active surface and in electrical contact with at least one of the plurality of microelectronic devices of the encapsulated substrate.
Abstract:
Dense interconnect with solder cap (DISC) formation with laser ablation and resulting semiconductor structures and packages are described. For example, a method of fabricating a semiconductor structure includes forming an insulative material stack above a plurality of solder bump landing pads. The solder bump landing pads are above an active side of a semiconductor die. A plurality of trenches is formed in the insulative material stack by laser ablation to expose a corresponding portion of each of the plurality of solder bump landing pads. A solder bump is formed in each of the plurality of trenches. A portion of the insulative material stack is then removed.
Abstract:
Disclosed are embodiments of a substrate for an integrated circuit (IC) device. The substrate includes a core comprised of two or more discrete glass layers that have been bonded together. A separate bonding layer may be disposed between adjacent glass layers to couple these layers together. The substrate may also include build-up structures on opposing sides of the multi-layer glass core, or perhaps on one side of the core. Electrically conductive terminals may be formed on both sides of the substrate, and an IC die may be coupled with the terminals on one side of the substrate. The terminals on the opposing side may be coupled with a next-level component, such as a circuit board. One or more conductors extend through the multi-layer glass core, and one or more of the conductors may be electrically coupled with the build-up structures disposed over the core. Other embodiments are described and claimed.