摘要:
A microelectronic package includes a microelectronic element having contacts, a flexible substrate spaced from and overlying the microelectronic element and a plurality of conductive posts extending from the flexible substrate and projecting away from the microelectronic element. The conductive posts are electrically interconnected with the microelectronic element. Each conductive post has a conductive base that is in contact with the flexible substrate and a conductive tip that extends from the base, with the base of the conductive post having a larger diameter than the tip of the conductive post. In certain embodiments, the conductive base and the conductive tip have a cylindrical shape.
摘要:
Wafer level chip packages including risers having sloped sidewalls and methods of fabricating such chip packages are disclosed. The inventive wafer level chip packages may advantageously be used in various microelectronic assemblies.
摘要:
Wafer level chip packages including risers having sloped sidewalls and methods of fabricating such chip packages are disclosed. The inventive wafer level chip packages may advantageously be used in various microelectronic assemblies.
摘要:
A microelectronic package includes a microelectronic element having contacts, a flexible substrate spaced from and overlying the microelectronic element and a plurality of conductive posts extending from the flexible substrate and projecting away from the microelectronic element. The conductive posts are electrically interconnected with the microelectronic element. Each conductive post has a conductive base that is in contact with the flexible substrate and a conductive tip that extends from the base, with the base of the conductive post having a larger diameter than the tip of the conductive post. In certain embodiments, the conductive base and the conductive tip have a cylindrical shape.
摘要:
Wafer level chip packages including risers having sloped sidewalls and methods of fabricating such chip packages are disclosed. The inventive wafer level chip packages may advantageously be used in various microelectronic assemblies.
摘要:
Wafer level chip packages including risers having sloped sidewalls and methods of fabricating such chip packages are disclosed. The inventive wafer level chip packages may advantageously be used in various microelectronic assemblies.
摘要:
An electronic system including an enclosure and an internal air plenum within the enclosure. At least one component of the electronic system within the enclosure evolves heat and has a surface exposed to the internal air plenum. The enclosure has inlet and outlet ventilation boundaries together with an EHD air mover disposed therein to motivate airflow along a flow path between the inlet and outlet ventilation boundaries, wherein the flow path is substantially excluded from the internal air plenum by a barrier.
摘要:
By selecting different materials for each layer, a multi-layered electrode structure can be made with superior performance characteristics. For example, a multilayered electrode can include a high tensile strength tungsten core, a conductive intermediate palladium, palladium-nickel, or other platinum group metal layer for generating a corona discharge, and a hardened layer comprising rhodium or other platinum group metal or alloy of the same to resist frictional abrasion during removal of silica dendrites that accumulate on the electrode surface during operation.
摘要:
An apparatus for cleaning an emitter electrode in electrohydrodynamic fluid accelerator and precipitator devices via movement of a cleaning device including granular abrasives positioned to frictionally engage the emitter electrode. The cleaning device causes the granular abrasives to travel along a longitudinal extent of the emitter electrode to remove detrimental material accumulated on the electrode. The granular abrasives can be retained in housing, on opposed cleaning surfaces, and can be compressed by the housing or an applied force to abrade detrimental material from the electrode surface.
摘要:
A flux formulation without a surfactant is available for use in the assembly of electronic circuit boards as a no-clean formulation. The formulation includes a flux solution having a fluxing agent consisting essentially of one or more weak organic acids and a solvent consisting essentially of water. The flux solution serves to transport the fluxing agent before deposition thereof upon a soldering site for reliability improvement engendered by a lack of hygroscopic residue and for avoidance of environmental degradation engendered by a lack of volatile organic chemicals (VOC's). The method includes the steps of heating the flux solution and dispersing it as a fine spray.