Abstract:
A die-attach composition includes a resin such as a thermosetting resin, a hardener, and a low molecular weight oligomer diluent. A die-attach composition includes a polyimide in a major amount and a resin such as a thermosetting resin in a minor amount. The die-attach composition also includes a reactive polymer diluent. Combinations of the low molecular weight oligomer diluent and the reactive polymer diluent are included. The die-attach composition is applied to surface mount technology such as wire-bond dice. A computing system is also included that uses the die-attach composition.
Abstract:
According to some embodiments, a method, apparatus, and system are provided. In some embodiments, the method includes providing solder resist material on a surface of a substrate, applying mask material on top of the solder resist material, reflowing solder located in an opening formed through both the solder resist material and the mask material, and removing the mask material after the reflowing of the solder.
Abstract:
According to some embodiments, a method, apparatus, and system are provided. In some embodiments, the method includes providing solder resist material on a surface of a substrate, applying mask material on top of the solder resist material, reflowing solder located in an opening formed through both the solder resist material and the mask material, and removing the mask material after the reflowing of the solder.
Abstract:
Highly reliable interconnections for microelectronic packaging. In one embodiment, dielectric layers in a build-up interconnect have a gradation in glass transition temperature; and the later applied dielectric layers are laminated at temperatures lower than the glass transition temperatures of the earlier applied dielectric layers. In one embodiment, the glass transition temperatures of earlier applied dielectric films in a build-up interconnect are increased through a thermosetting process to exceed the temperature for laminating the later applied dielectric films. In one embodiment, a polyimide material is formed with embedded catalysts to promote cross-linking after a film of the polyimide material is laminated (e.g., through photo-chemical or thermal degradation of the encapsulant of the catalysts). In one embodiment, the solder resist opening walls have a wettable layer generated through laser assisted seeding so that there is no gap between the solder resist opening walls and no underfill in the solder resist opening.