Abstract:
A substrate on which a silicon device is mounted in accordance with an embodiment of the present invention includes a plurality of protrusions extending upward from a top surface of the substrate and a solder layer formed on the top of the substrate such that the plurality of protrusions extends through the solder layer and a top portion of each protrusion of the plurality of protrusions is stamped down to be level with a top surface of the solder layer such that the silicon device is supported on the plurality of protrusions when placed on the substrate. The protrusions are preferably gouged up from the surface of the substrate with a needle like tool. A stamper tool is used to stamp the protrusions down to their desired height such that they are properly positioned to support the silicon device. The solder layer may be a solder pre-form or may be a layer of solder paste. The solder layer is heated to form liquid solder to bond the substrate and the silicon device, however, the protrusions support the silicon device to prevent movement thereof when the solder is in liquid form.
Abstract:
A semiconductor package that includes a semiconductor die, an insulation around the die, and a conforming conductive pad coupled to an electrode of the die.
Abstract:
A heat conductive metal layer (200) is formed over a backside of an integrated circuit chip (102), attached via an epoxy or other die attachment material (106) to a substrate (104). The metal layer (200) improves heat dissipation by conducting heat from the chip (102) around voids (109) present in the die attach material. Metal layer (200) may be of composite construction, having a primary metal layer, one or more barrier metal layers, an adhesive metal layer to improve metal adherence to the chip, and a solder layer to enable optional direct solder attachment to a substrate.
Abstract:
Methods and apparatuses are provided for assembling micro-components on a support having a pattern of binding sites. In accordance with one method, a first fluid is provided on the surface of the support with the first fluid being of a type that increases viscosity when cooled, the first fluid having first micro-components suspended therein each adapted to engage the binding sites. First fluid proximate to selected binding sites is cooled to increase the viscosity of the responsive fluid proximate to the selected binding sites so that the first micro-components suspended in the first fluid are inhibited from engaging the selected binding sites.
Abstract:
Es ist ein integriertes Schaltungsmodul (3) mit einem Trägersubstrat (4) mit Anschlüssen zur elektrischen Kontaktierung des Trägersubstrats (4) mit einer Hauptplatine (2) und mit mindestens einem mit dem Trägersubstrat (4) elektrisch kontaktierten und in das Trägersubstrat (4) integrierten Halbleiterchip (9) beschrieben. Das Trägersubstrat (4) hat mindestens eine an eine Montageoberfläche (10) für die Hauptplatine (2) angrenzende Kavität (8) zur Aufnahme mindestens eines Halbleiterchips (9) und es sind in der Kavität (8) Anschlusskontakte (1 la, 11 b) für zugeordnete Anschlüsse des mindestens einen Halbleiterchips (9) zur elektrischen Kontaktierung des Halbleiterchips (9) mit dem Trägersubstrat (4) vorgesehen. Das Trägersubstrat (4) ist mehrlagig mit sich quer durch mehrere Lagen erstreckende Leiterbahnen und die Kavität (8) ist mit einer hermetischen und thermisch leitfähigen Abdeckung (12) verschlossen.
Abstract:
A support and a method for assembling micro-components to binding sites on the support are provided. The support has a pattern of electrical conductors adapted to conduct electrical energy between binding sites. In accordance with the method, an electrical signal is passed through at least one conductive path including at least one of the conductors so that heat is generated by a portion of each conductive path proximate to the binding sites, a first fluid is applied to the support that is adapted to increase in viscosity when heated, and, a carrier fluid having first micro-components adapted to engage the binding sites is applied to the support. Wherein the heat from the at least one conductive path increases the viscosity of the first fluid in areas proximate to the selected binding sites so as to inhibit first micro-components from engaging the binding sites.
Abstract:
A self-supporting contacting structure is directly produced on a component that does not have a housing by applying a layer made of nonconducting material and a layer made of an electrically conductive material to the component and to a support and by subsequently removing these layers from said support.