Abstract:
Method for packaging a semiconductor die assemblies. In one embodiment, a method is directed to packaging a semiconductor die assembly having a first die and a plurality of second dies arranged in a stack over the first die, wherein the first die has a peripheral region extending laterally outward from the stack of second dies. The method can comprise coupling a thermal transfer structure to the peripheral region of the first die and flowing an underfill material between the second dies. The underfill material is flowed after coupling the thermal transfer structure to the peripheral region of the first die such that the thermal transfer structure limits lateral flow of the underfill material.
Abstract:
Semiconductor devices having redistribution structures, and associated systems and methods, are disclosed herein. In one embodiment, a semiconductor package includes a first semiconductor die including a first redistribution structure and a second semiconductor die including a second redistribution structure. The first and second semiconductor dies can be mounted on a package substrate such that the first and second redistribution structures are aligned with each other. In some embodiments, an interconnect structure can be positioned between the first and second semiconductor dies to electrically couple the first and second redistribution structures to each other. The first and second redistribution structures can be configured such that signal routing between the first and second semiconductor dies can be altered based on the location of the interconnect structure.
Abstract:
Semiconductor die assemblies having high efficiency thermal paths and molded underfill material. In one embodiment, a semiconductor die assembly comprises a first die and a plurality of second dies. The first die has a first functionality, a lateral region, and a stacking site. The second dies have a different functionality than the first die, and the second dies are in a die stack including a bottom second die mounted to the stacking site of the first die and a top second die defining a top surface of the die stack. A thermal transfer structure is attached to at least the lateral region of the first die and has a cavity in which the second dies are positioned. An underfill material is in the cavity between the second dies and the thermal transfer structure, and the underfill material covers the top surface of the die stack.
Abstract:
A semiconductor die assembly having high efficiency thermal paths. In one embodiment, the semiconductor die assembly comprises a package support substrate, a first semiconductor die having a peripheral region and a stacking region, and a second semiconductor die attached to the stacking region of the first die such that the peripheral region is lateral of the second die. The assembly further includes a thermal transfer unit having a base attached to the peripheral region of the first die, a cover attached to the base by an adhesive, and a cavity defined by at least cover, wherein the second die is within the cavity. The assembly also includes an underfill in the cavity, wherein a fillet portion of the underfill extends a distance up along a portion of the footing and upward along at least a portion of the base.
Abstract:
Methods and apparatuses for releasably attaching support members to microfeature workpieces to support members are disclosed herein. In one embodiment, for example, a method for processing a microfeature workpiece including a plurality of microelectronic dies comprises forming discrete blocks of material at a first side of a support member. The blocks are arranged on the support member in a predetermined pattern. The method also includes depositing an adhesive material into gaps between the individual blocks of material and placing a first side of the workpiece in contact with the adhesive material and/or the blocks. The method further includes cutting through a second side of the workpiece to singulate the dies and to expose at least a portion of the adhesive material in the gaps. The method then includes removing at least approximately all the adhesive material from the support member and/or the workpiece with a solvent.
Abstract:
A semiconductor die assembly having high efficiency thermal paths. In one embodiment, the semiconductor die assembly comprises a package support substrate, a first semiconductor die having a peripheral region and a stacking region, and a second semiconductor die attached to the stacking region of the first die such that the peripheral region is lateral of the second die. The assembly further includes a thermal transfer unit having a base attached to the peripheral region of the first die, a cover attached to the base by an adhesive, and a cavity defined by at least cover, wherein the second die is within the cavity. The assembly also includes an underfill in the cavity, wherein a fillet portion of the underfill extends a distance up along a portion of the footing and upward along at least a portion of the base.
Abstract:
Stacked semiconductor die assemblies with improved thermal performance and associated systems and methods are disclosed herein. In one embodiment, a semiconductor die assembly can include a stack of semiconductor dies and a thermally conductive casing at least partially enclosing the stack of semiconductor dies within an enclosure. A package substrate carries the thermally conductive casing, and an interposer is disposed between the thermally conductive casing and the stack of semiconductor dies. A peripheral portion of the interposer extends laterally beyond the stack of semiconductor dies and is coupled to a plurality of conductive members interposed between the peripheral portion and the package substrate.
Abstract:
A semiconductor die assembly having high efficiency thermal paths. In one embodiment, the semiconductor die assembly comprises a package support substrate, a first semiconductor die having a peripheral region and a stacking region, and a second semiconductor die attached to the stacking region of the first die such that the peripheral region is lateral of the second die. The assembly further includes a thermal transfer unit having a base attached to the peripheral region of the first die, a cover attached to the base by an adhesive, and a cavity defined by at least cover, wherein the second die is within the cavity. The assembly also includes an underfill in the cavity, wherein a fillet portion of the underfill extends a distance up along a portion of the footing and upward along at least a portion of the base.
Abstract:
Methods and apparatuses for releasably attaching support members to microfeature workpieces to support members are disclosed herein. In one embodiment, for example, a method for processing a microfeature workpiece including a plurality of microelectronic dies comprises forming discrete blocks of material at a first side of a support member. The blocks are arranged on the support member in a predetermined pattern. The method also includes depositing an adhesive material into gaps between the individual blocks of material and placing a first side of the workpiece in contact with the adhesive material and/or the blocks. The method further includes cutting through a second side of the workpiece to singulate the dies and to expose at least a portion of the adhesive material in the gaps. The method then includes removing at least approximately all the adhesive material from the support member and/or the workpiece with a solvent.
Abstract:
Interconnect structures for stacked dies, including penetrating structures for through-silicon vias, and associated systems and methods are disclosed. A system in accordance with a particular embodiment includes a first semiconductor substrate having a first substrate material, and a penetrating structure carried by the first semiconductor substrate. The system further includes a second semiconductor substrate having a second substrate material with a preformed recess. The penetrating structure of the first semiconductor substrate is received in the recess of the second semiconductor substrate and is mechanically engaged with the recess and secured to the second semiconductor substrate.