摘要:
A method including introducing a composition including a siloxane-based aromatic diamine in a flowable state between a first substrate including a first set of contact points and a second substrate including a second set of contact points coupled to the first substrate through interconnections between a portion of the first set of contact points a portion of the second set of contact points; and curing the composition.
摘要:
A process of packaging a microelectronic chip includes wafer-level application of a chip-packaging composition that includes a polymer of a bis-maleimide. A process includes wafer-level addition of the chip-packaging compositions that include adding particulate fillers to achieve a coefficient of thermal expansion of about 20 ppm/K. A computing system is also included that uses a microelectronic die that was processed with the bis-maleimide at the wafer level, before singulation.
摘要:
Dendrimer/hyperbranched materials are combined with polyimide to form a low CTE material for use as a dielectric substrate layer or an underfill. In the alternative, ruthenium carbene complexes are used to catalyze ROMP cross-linking reactions in polyimides to produce a class of cross-linkable, thermal and mechanical stable material for use as a dielectric substrate or underfill. In another alternative, dendrimers/hyperbranched materials are synthesized by different methods to produce low viscosity, high Tg, fast curing, mechanically and chemically stable materials for imprinting applications.
摘要:
According to one aspect of the invention, a structure and method for providing improved thermal conductivity of a thermal interface material (TIM) made of phase changed polymer matrix and a fusible filler material is disclosed. The TIM may also have a non-fusible filler material and a percentage of a non-phase change polymer added to the phase change polymer matrix. The TIM, used to mate and conduct heat between two or more components, can be highly filled systems in a polymeric matrix where the fillers are thermally more conductive than the polymer matrix.
摘要:
An underfill material is presented that may be used between an electrical component and a substrate. The underfill material may be a cured epoxy resin composition comprising a liquid or semisolid epoxy resin and a polyfunctional anhydride polymer and/or oligomer curing agent. The use of anhydride polymers and/or oligomers decrease the volatilization of the composition, thereby reducing the porosity of the underfill material. By changing substituents of the anhydride polymer and/or oligomer, the underfill material may be designed to modify viscosity, decrease moisture adsorption, volatilization and modulus, improve mechanical properties, and enhance adhesion.
摘要:
Apparatus and methods in accordance with the present invention utilize thermoelectric cooling (TEC) technology to provide enhanced power distribution and/or dissipation from a microelectronic die and/or microelectronic packages. Individual TEC devices are thermally interconnected with the microelectronic die in a number of placement configurations, including between the microelectronic die and the heat sink, on the integrated heat spreader (IHS) inner surface, and on the IHS outer surface. TEC devices comprise p- and n-type semiconducting material created using similar process as the microcircuits. The TEC devices are located in various regions within or on the microelectronic die, including directly below the microcircuits, on the backside of the microelectronic die, and on a separate substrate of microelectronic die material fabricated apart from the microelectronic die and subsequently thermally coupled to the backside of the microelectronic die.
摘要:
Apparatus and methods are provided wherein the reflowable electrically conductive interconnect material coupling the interconnects and/or land-side components of a microelectronic package is protected from elevated temperatures, such as those associated with reflow processes and environments which exceed the melting temperature of the interconnect material. One embodiment of the method provides covering the interconnect material about the interconnects and/or land-side components with heat-resistant curable material which protects the interconnect material from the elevated temperature and provides structural support to the interconnects and/or land-side components at the elevated temperature. One embodiment of the apparatus provides a substrate comprising interconnects and/or land-side components coupled to a carrier substrate with reflowable electrically conductive interconnect material, and a layer of heat-resistant curable material covering the interconnect material and forming fillets about the interconnects and/or land-side components.
摘要:
Apparatus and methods are provided wherein the reflowable electrically conductive interconnect material coupling the interconnects and/or land-side components of a microelectronic package is protected from elevated temperatures, such as those associated with reflow processes and environments which exceed the melting temperature of the interconnect material. One embodiment of the method provides covering the interconnect material about the interconnects and/or land-side components with heat-resistant curable material which protects the interconnect material from the elevated temperature and provides structural support to the interconnects and/or land-side components at the elevated temperature. One embodiment of the apparatus provides a substrate comprising interconnects and/or land-side components coupled to a carrier substrate with reflowable electrically conductive interconnect material, and a layer of heat-resistant curable material covering the interconnect material and forming fillets about the interconnects and/or land-side components.
摘要:
Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula: [(R′)zM(L′)x(L″)y]b[WCA]d wherein [(R′)zM(L′)x(L″)y] is a cation complex where M represents a Group 10 transition metal; R′ represents an anionic hydrocarbyl containing ligand; L′ represents a Group 15 neutral electron donor ligand; L″ represents a labile neutral electron donor ligand; x is 1 or 2; and y is 0, 1, 2, or 3; and z is 0 or 1, wherein the sum of x, y, and z is 4; and [WCA] represents a weakly coordinating counteranion complex; and b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex are taken to balance the electronic charge on the overall catalyst complex.