Abstract:
Prober space transformer to interface an E-testing apparatus to an unpackaged die. The space transformer may include a substrate and a perforated cover plate disposed on the substrate. The substrate may include conductive traces and an array of conductive probe pins extend outwardly from anchor points on the substrate. The pins are electrically coupled to at least one of the conductive traces on the substrate as a prober interface between an E-testing apparatus and a DUT. The cover plate may be affixed to a surface of the substrate and includes an array of perforations through which the array of conductive pins may pass. The cover plate may be synthetic polymer resin or a polymer-based composite, fabricated, for example by perforating a mold preform.
Abstract:
An apparatus is described that includes a substrate and a mold compound disposed on the substrate. The semiconductor die is embedded within the mold compound and is electrically coupled to lands on the substrate. Solder balls are disposed around the semiconductor die on the substrate. Each of the solder balls have a solid coating thereon. The solid coating contains a cleaning agent to promote its solder ball's coalescence with another solder ball. Respective vias are formed in the mold compound that expose the solder balls and their respective solid coatings. In combined or alternate embodiments outer edges of the mold compound have smaller thickness than regions of the mold compound between the vias and the semiconductor die. In combined or alternate embodiments micro-channels exist between the solder balls and the mold compound.
Abstract:
This disclosure relates generally to devices, systems, and methods for making a flexible microelectronic assembly. In an example, a polymer is molded over a microelectronic component, the polymer mold assuming a substantially rigid state following the molding. A routing layer is formed with respect to the microelectronic component and the polymer mold, the routing layer including traces electrically coupled to the microelectronic component. An input is applied to the polymer mold, the polymer mold transitioning from the substantially rigid state to a substantially flexible state upon application of the input.
Abstract:
Certain embodiments relate to compositions that may be used as thermal interface materials in electronic assemblies. One such composition includes a block copolymer matrix comprising polystyrene and polybutene. The composition also includes a filler positioned in the copolymer matrix, the filler comprising carbon. The filler may in certain embodiments be a material selected from the group consisting of graphite, graphene, and carbon nanotubes. composition may include routing structures and their formation. Assemblies may include the composition positioned between a die and a heat spreader. Other embodiments are described and claimed.
Abstract:
An embodiment of the present invention is a technique to form a resin. A mixture is formed by a curing agent dissolved in the epoxy resin. The epoxy resin contains a first rigid rod mesogen. The curing agent contains a second rigid rod mesogen and one of a hydroxyl, amine, and anhydride.
Abstract:
A curable material useful as thermal material comprises at least one vinyl-terminated silicone oil, at least one conductive filler, and at least one hydrogen terminated silicone oil. The hydrogen terminated silicone oil is used to reduce a shear modulus G′ of the cured thermal interface material.
Abstract:
Polyether polymers obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an onium iodide compound such as an ammonium or phosphonium iodide, an organotin compound such as a trihydrocarbyltin iodide, and a nucleophilic hydroxyl initiator compound. The polyether polymers comprise n units of residue (1) and m units of residue (2), wherein the total value of n+m is 2 to 70, m/(n+m) is greater than 0.75 and up to 0.98, and residues (1) and (2) have the structures: ##STR1##
Abstract:
Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an acidic catalyst and a nucleophilic initiator compound. The polyether compounds comprise n units of residue (1) and m units of residue (2), wherein the total value of n+m is 2 to 70, n/(n+m) is a value in the range of 0.70 to 0.95, and residues (1) and (2) have the structures: ##STR1##
Abstract:
Disclosed are novel saturated polyether compounds comprised of n units of residue (1) and m units of residue (2), wherein (i) residues (1) and (2) have the structures: ##STR1## (ii) the total value of n+m is 2 to 70 and m/(n+m) is 0.05 to 0.98; (ii) at least 98 percent of the terminal hydroxyl groups of the polyether have the structure: ##STR2## The polyethers are obtained by first polymerizing 3,4-epoxy-1-butene to produce unsaturated polyether precursors comprising residues (1A) and (2A) having the structures: ##STR3## and then hydrogenating the unsaturated polyether precursors. The hydrogenation advantageously is performed in the presence of a nickel hydrogenation catalyst.
Abstract:
Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an acidic catalyst and a nucleophilic initiator compound. The polyether compounds comprise n units of residue (1) and m units of residue (2), wherein the total value of n+m is 2 to 70, n/(n+m) is a value in the range of 0.70 to 0.95, and residues (1) and (2) have the structures: ##STR1##