Abstract:
A multichip module with a substrate which is equipped on its component side with an IC component and other electronic components interconnected by electroconducting lines. Electric leadthroughs extend from the component side to the bottom side of the substrate and are connected to solder contacts arranged on the bottom side of the substrate to electrically connect the multichip module to a subassembly support. In order to reduce the density of printed circuits on the top side of the multichip module and to reduce the number of required substrate layers, a support is arranged between each IC component and the substrate and comprises printed circuits and components connected by means of first connecting surfaces to the corresponding IC component and by means of second connecting surfaces to connections on the substrate.
Abstract:
A surface mountable power supply and a method of manufacturing the power supply. In one embodiment, the power supply includes: (1) a substrate having opposing upper and lower conductive layers (2) a lower electrical component having a first lead mounted on a first pad on the lower conductive layer and subject to forces capable of detaching the lower electrical component from the substrate when the power supply passes through a reflow soldering process, (3) an upper electrical component having a second lead mounted on a second pad on the upper conductive layer, (4) a solder located proximate the first lead, the lower electrical component of a sufficiently low weight such that a surface tension of a liquid state of the solder is sufficient to maintain the lower electrical component in contact with the lower conductive layer as the power supply passes through the reflow soldering process, (5) a planar magnetic device mounted on the substrate, the planar magnetic device having windings formed from a portion of conductive traces on the upper and lower conductive layers and a core disposed through apertures of the substrate and proximate the windings and (6) an inter-substrate conductive mount, coupled to the lower conductive layer, composed of a material having a melting point above a solder reflow temperature and adapted to mount the power supply to an adjacent substrate and provide a conductive path therebetween, the conductive mount including first and second compliant solder joints at interfaces of the substrate and the adjacent substrate, respectively.
Abstract:
Das Keramik-Substrat (13) ist auf einer ersten Seite einer zum Modul gehörenden, Schaltungsstrukturen aufweisenden Leiterplatte (12) mittels eines flexiblen Klebers (2) befestigt und mittels Bondverbindungen (11) an die Schaltungsstrukturen kontaktiert, und die Anschlußelemente sind durch auf der Rückseite der Leiterplatte (12) angebrachte, annähernd kugelförmige Lotballungen (10) gebildet, die über Durchkontaktierungen mit den Schaltungsstrukturen auf der ersten Seite der Leiterplatte (12) verbunden sind.
Abstract:
A control device such as a numerical controller constituted of a plurality of printed boards on which are mounted various circuit components. Input/output interface connectors (9) are mounted on the printed board (1) in a manner that the lengthwise directions thereof are oriented in the vertical direction relative to the mounting surface of the printed board. Module boards (10) are mounted in the vertical direction relative to the mounting surface of the printed board (1). The module boards (10) have a height nearly equal to the height of the interface connectors (9). This makes it possible to increase the number of circuit components that can be mounted in a unit space, and to decrease the outer size of the whole control device.
Abstract:
A semiconductor chip module has semiconductor chips (12) each having contacts on its entire front face, and a multi-layered organic circuit board (15) having a small dielectric constant intermediate ceramic substrates (11) having the same thermal expansion coefficient as that of the semiconductor chip (12), each having contacts on its front and back faces corresponding to those of the semiconductor chip (12) and being electrically connected directly in a one to one relationship. The contacts on the semiconductor chip (12) and the corresponding contacts on the substrates (11) are connected by a solder, the contacts on the other of the substrate (11) and the corresponding contacts on the multi-layered ceramic circuit board (15) are connected by respective conductive pins (14) having a predetermined flexibility and rigidity through a predetermined gap therebetween. In this way there is the possibility of the relative displacement due to theremal expansion difference between the intermediate ceramic substrate (11) and the multi-layered organic circuit board (15).
Abstract:
An electrical component substantially consists of an assembly of ceramic chip carriers 12 and a mother board 11 wherein the mother board 11 is in effect partitioned into a plurality of portions or sub-sections, and the chip carriers 12 are mounted on the mother board 11 either directly or through unit boards 14, 15 on predetermined portions or sub-sections of the mother board 11. In this assembly, each unit board 14, 15 is fabricated in the same conventional manner as the mother board 11, and several chip carriers 12 may be mounted on one kind of unit board 14, which in turn may be mounted on another unit board 15 of larger size together with other chip carriers 12. One or more than one chip carrier 12 may be mounted directly on the mother board 11, on a unit board 14 of smaller size, or on a unit board 15 of larger size. External conductors may be fabricated on surfaces of these unit boards 14,15 and the mother board 11, and these conductors may be plated using conventional technique.
Abstract:
A method for integrating a component into a printed circuit board includes the following steps: providing two completed printed circuit board elements, which more particularly consist of a plurality of interconnected plies or layers, wherein at least one printed circuit board element has a cutout or depression, arranging the component to be integrated on one of the printed circuit board elements or in the cutout of the at least one printed circuit board element, and connecting the printed circuit board elements with the component being accommodated in the cutout, as a result of which it is possible to obtain secure and reliable accommodation of a component or sensor in a printed circuit board. Furthermore, a printed circuit board of this type comprising an electronic component integrated therein is provided.
Abstract:
In an electronic device which realizes high-temperature-side solder bonding in temperature-hierarchical bonding, a bonding portion between a semiconductor device and a substrate is formed of metal balls made of Cu, or the like, and compounds formed of metal balls and Sn, and the metal balls are bonded together by the compounds.
Abstract:
PROBLEM TO BE SOLVED: To provide electronic equipment capable of easily changing design. SOLUTION: The electronic equipment 1 includes: a casing 4; a mother board 21 stored in the casing 4; the first daughter board 22; the second daughter board 23; a host controller 26 mounted on the mother board 21; a bridge controller 41 mounted on the first daughter board 22, and connected electrically to the host controller 26; the first chip 42 mounted on the first daughter board 22, and connected electrically to the bridge controller 41; and the second chip 48 mounted on the second daughter board 23, and connected electrically to the bridge controller 41. COPYRIGHT: (C)2009,JPO&INPIT