Abstract:
Cooling liquids such as fluorocarbons are enclosed within a module containing electronic components (12) on a printed wiring board (11). Preferably top and bottom covers (26, 16) are applied to the top and bottom of the board (11) and liquid-sealed thereto. Hot-melt adhesive (34, 34a) is used for the seal. Each edge of a cover has an outward-extending flange (19, 19a) formed with a peripheral downward turned lip. Heated adhesive (34, 34a) is applied to the board in a continuous bead around the flange (19, 19a), the thickness of the bead being greater than the height of the lip (21).
Abstract:
Temporary connections to spring contact elements extending from an electronic component such as a semiconductor device are made by urging the electronic component, consequently the ends of the spring contact elements, vertically against terminals of an interconnection substrate, or by horizontally urging terminals of an interconnection substrate against end portions of the spring contact elements. A variety of terminal configurations are disclosed.
Abstract:
This invention relates to a method and system for producing a secmiconductor package interconnectably mounted on a semiconductor package substrate (14) without substantial package warpage, and to a method for using a stiffener member (20) to reliably overcome such substantial package warpage. The subject method comprises providing a semiconductor package and a semiconductor package substrate having respective first and second major sides. A stiffener member (20) is attached to the semiconductor package substrate to provide the requisite support for the semiconductor package substrate during the assembly process and thereby counteract the sources of the package warpage problem. A protective outer layer can be optionally added to the subject system.
Abstract:
A semiconductor device comprises a substrate (1) with a plane surface (4) on which a layer structure (2) is formed in a number of layers (5, 7, 9, 13, 15, 17). The substrate is fastened with its side on which the layer structure was formed to a plane support body (18) by means of a glue layer (19) which encompasses spacer elements (20). These spacer elements are fastened to the surface (4) of the substrate (1) and all have the same height measured from the surface (4). In fastening the substrate (1) to the support body (18), glue is provided and the substrate (1) is pressed onto the support body (18). The pressure is evenly distributed over the spacer elements (20) during this.
Abstract:
A package for hermetically housing an electronic element has a lid made of metallic foil. The gap between the lid and the main body is sealed with a resin adhesive.
Abstract:
The invention relates to an arrangement for the encasing of a functional device, e.g., a semiconductor element, a semiconductor-based element, a sensor element, a microactuator, or an electronic circuit consisting of one or more integrated circuits and other electronic components, and a process for preparing an arrangement of this kind. Around the functional device (47) is arranged a casing (43, 45) which forms a closed cavity (51) which completely or partly surrounds the functional device (47). The casing is made of a plastic material or another polymer material. The casing consists of two or more joined components (43, 45). Metal parts which form wire bonds (46) with said functional device (47) in the casing pass through the walls of said casing. At least one of the casing pass through the walls of said casing. At least one of the casing components has filling holes or filling ducts (52, 53) for the introduction of liquid and/or gel material (56) into said cavity, and the filling holes or filling canals are sealed (54, 55) after the volume of the cavity has been filled with said liquid or gel.
Abstract:
Embedded air core inductors are described for integrated circuit package substrates. The substrates have a thermal conductor for the inductors. One example includes a package substrate to carry an integrated circuit die, the package substrate having a plurality of top side pads to connect to the die on a top side and a plurality of bottom side pads to connect to an external component on a bottom side. An inductor is embedded within the package substrate, a thermal conductor is embedded within the package substrate adjacent to the inductor to conduct heat away from the inductor, and a heat sink is thermally coupled to the thermal conductor to receive the heat from the conductor.
Abstract:
An automotive electronic device includes a pocket, which houses electronic components, bond wires connecting the electronic components, and a protective gel to encapsulate the electronic components and bond wires. A pocket cover has fins that protrude into the gel to reduce vibration of the gel and reduce vibration fatigue failure of the bond wires. The fins may: divide the gel into a plurality of cells; reduce the width of cells perpendicular to the bond wires; protrude deeper into the gel than the bond wires; and/or have differing shapes and/or depths.