Abstract:
Systems and methods for providing 3D wafer assembly with known-good- dies are provided. An example method compiles an index of dies on a semiconductor wafer and removes the defective dies to provide a wafer with dies that are all operational. Defective dies on multiple wafers may be removed in parallel, and resulting wafers with all good dies stacked in 3D wafer assembly. In an implementation, the spaces left by removed defective dies may be filled at least in part with operational dies or with a fill material. Defective dies may be replaced either before or after wafer-to-wafer assembly to eliminate production of defective stacked devices, or the spaces may be left empty. A bottom device wafer may also have its defective dies removed or replaced, resulting in wafer-to-wafer assembly that provides 3D stacks with no defective dies.
Abstract:
A microelectronic assembly 700 includes a dielectric element 730 having at least one aperture 733 and electrically conductive elements thereon including terminals 740 exposed at the second surface of the dielectric element 730; a first microelectronic element 712 having a rear surface and a front surface facing the dielectric element 730, the first microelectronic element 712 having a plurality of contacts exposed at the front surface thereof; a second microelectronic element 714 having a rear surface and a front surface facing the rear surface of the first microelectronic element 712, the second microelectronic element 714 having a plurality of contacts exposed at the front surface and projecting beyond an edge of the first microelectronic element 712; and an electrically conductive plane 790 attached to the dielectric element 730 and at least partially positioned between the first and second apertures 733,739, the electrically conductive plane 790 being electrically connected with one or more of the contacts of at least one of the first or second microelectronic elements 712,714.
Abstract:
A semiconductor package that includes a substrate having a metallic back plate, an insulation body and plurality of conductive pads on the insulation body, and a semiconductor die coupled to said conductive pads, the conductive pads including regions readied for direct connection to pads external to package using a conductive adhesive.
Abstract:
Die Erfindung betrifft ein Verfahren zur Kontaktierung einer Kontaktfläche (90) eines Halbleiterbauteils (50) und ein Elektronikmodul. Bei dem Verfahren zur Kontaktierung einer Kontaktfläche (90) eines Halbleiterbauteils (50), wird zunächst an die Kontaktfläche (90) eine sich in Richtung von der Kontaktfläche (90) weg verjüngende elektrisch leitfähige Schicht (200) gebracht und nachfolgend wird an der Schicht in zumindest einer Erstreckungsrichtung der Kontaktfläche angrenzend Isolationsmaterial (230) gebracht. Das Elektronikmodul ist insbesondere ein Leistungsmodul und umfasst ein Halbleiterbauteil mit einer Kontaktfläche (90) und mit einer Leiterbahn (225), wobei die Kontaktfläche (90) mittels eines solchen Verfahrens kontaktiert ist.
Abstract:
An electric component comprising a terminal electrode (104,105) and a hot-melt polymer layer (i.e. a solder paste) formed on the terminal electrode, wherein the hot-melt polymer layer comprises (i) 100 parts by weight of a metal powder and (ii) 1 to 30 parts by weight of a thermoplastic polymer, wherein melt mass-flow rate (MFR) of the polymer is 0.5 to 20 g/10 min. at 120 to 200°C and 0.3 to 8 kgf.
Abstract:
Multichip packages or multichip modules may include stacked chips and through silicon/substrate vias (TSVs) formed using enclosure-first technology. Enclosure-first technology may include forming an isolation enclosure associated with a TSV early in the fabrication process, without actually forming the associated TSV. The TSV associated with the isolation enclosure is formed later in the fabrication process. The enclosure-first technology allows the isolation enclosures to be used as alignment marks for stacking additional chips. The stacked chips can be connected to each other or to an external circuit such that data input is provided through the bottom-most (or topmost) chip, data is output from the bottom-most (or topmost) chip. The multichip package may provide a serial data connection, and a parallel connection, to each of the stacked chips.
Abstract:
Apparatuses relating generally to a microelectronic package having protection from interference are disclosed. In an apparatus thereof, a substrate has an upper surface and a lower surface opposite the upper surface and has a ground plane. A first microelectronic device is coupled to the upper surface of the substrate. Wire bond wires are coupled to the ground plane for conducting the interference thereto and extending away from the upper surface of the substrate. A first portion of the wire bond wires is positioned to provide a shielding region for the first microelectronic device with respect to the interference. A second portion of the wire bond wires is not positioned to provide the shielding region. A second microelectronic device is coupled to the substrate and located outside of the shielding region. A conductive surface is over the first portion of the wire bond wires for covering the shielding region.
Abstract:
The present disclosure provides improved systems and methods for low-temperature bonding and/or sealing with spaced nanorods. In exemplary embodiments, the present disclosure provides for the use of metallic nanorods to bond and seal two substrates. The properties of the resulting bond are mechanical strength comparable to adhesives, impermeability comparable to metals and long term stability comparable to metals. The bond may be attached to any flat substrate and superstrate with strong adhesion. In certain embodiments, the bond is achieved at room temperature with only pressure or at a temperature above room temperature (e.g., about 150°C or less) and reduced pressure. Exemplary bonds are both mechanically strong and substantially impermeable to oxygen and moisture.