Abstract:
The present invention describes a method and apparatus for mounting a microelectronic device parallel to a substrate with an interposer and two heat sinks, one on each side of the substrate.
Abstract:
Methods and apparatuses for an elecronic assembly. The electronic assembly has a first object created and separated from a host substrate. The first object has a first electrical circuitry therein. A carrier substrate is coupled to the first object wherein the first object is being recessed below a surface of the carrier substrate. The carrier substrate further includes a first carrier connection pad and a second carrier connection pad that interconnect with the first object using metal connectors. A receiving substrate, which is substantially planar, including a second electrical circuitry, a first receiving connection pad, and a second receiving connection pad that interconnect with the second electrical circuity using the metal connectors. The carrier substrate is coupled to the receiving substrate using the connection pads mentioned.
Abstract:
A module of a combination card can be incorporated into a card body with solder being easily melted, and heat transmission to portions other than the antenna connection terminals is reduced. A card body (1) is provided with an antenna. The module (20) includes a substrate (7) which has a terminal surface on which at least one external connection terminal (4) is formed and a mounting surface opposite to the terminal surface. An IC chip (8) is mounted on the mounting surface. The module includes at least one antenna connection terminal (21a, 21b) located on the mounting surface. The antenna connection terminal (21a) is connected to the antenna, and at least a part (21b) of the antenna connection terminal (21a, 21b) is exposed on the terminal surface.
Abstract:
The present invention relates to a method and to an arrangement for connecting a component, such as a chip (6), on a substrate (7) to a conductive surface of a carrier, such as an earth plane (10) on a printed circuit board (8) having a conductive layer (11) in a so-called compact design.
Abstract:
A method and apparatus for vertically interconnecting stacks of silicon segments. Each segment includes a plurality of adjacent die on a semiconductor wafer. The plurality of die on a segment are interconnected on the segment using one or more layers of metal interconnects which extend to all four sides of the segment to provide edge bonding pads for external electrical connection points. After the die are interconnected, each segment is cut from the backside of the wafer using a bevel cut to provide four inwardly sloping edge walls on each of the segments. After the segments are cut from the wafer, the segments are placed on top of one another to form a stack. Vertically adjacent segments in the stack are electrically interconnected by applying electrically conductive epoxy to all four sides of the stack. The inwardly sloping edge walls of each of the segments in the stack provide a recess which allows the electrically conductive epoxy to access the edge bonding pads and lateral circuits on each of the segments once the segments are stacked. The stack of electrically interconnected segments is then mounted below the surface of a circuit board and electrically connected to circuits on the board by applying traces of electrically conductive epoxy between the bonding pads on the top segment of the stack and the circuit board.
Abstract:
There is described a high-frequency module comprising a high-frequency device-mounting package and an external circuit board characterized in that said high-frequency device-mounting package (A) includes a dielectric substrate (1) having a first grounding layer (4) contained therein, said dielectric substrate (1) mounting a high-frequency device (2) on one surface thereof and having, formed on one surface thereof, first high-frequency signal transmission lines (3) connected to said high-frequency device (2), and having, formed on the other surface thereof, second high-frequency signal transmission lines (7) coupled to said first high-frequency signal transmission lines (3), said external circuit board (B) is constituted by a dielectric board (20) having third high-frequency signal transmission lines (25) and a second grounding layer (26), said third high-frequency signal transmission lines (25) being formed on one surface of said dielectric board (20), and said second grounding layer (26) being formed on the other surface of said dielectric board (20) or inside thereof; and said high-frequency device-mounting package (A) and said external circuit board (B) are arranged side by side, and the second high-frequency signal transmission lines (7) of the high-frequency device-mounting package (A) are electrically connected to the third high-frequency signal transmission lines (25) of the external circuit board (B) through linear electrically conducting members (31). The patterns of the second high-frequency signal transmission lines on the side of the high-frequency device-mounting package can be easily aligned with the patterns of the third high-frequency signal transmission lines on the side of the external circuit board, effectively reducing the transmission loss at the junction portions of the lines.
Abstract:
The invention concerns a smart card, a connection arrangement and a method of producing a smart card, a semiconductor chip located on a module being inserted into a recess (24) in a card carrier so as to be connected electrically and mechanically. According to a first feature of the invention, during the milling-out of the recess, a contact bump section is exposed (22, 23) such that a reliable connection is provided between the module and induction or antenna coil (11). According to a second and third feature, the required electrical contacts are produced by soldering and the required mechanical contacts are produced by heat-sealing or fusion adhesives. Furthermore, the adhesive is provided with conductive particles and is compressed when the connection is made, such that the necessary electrical contact is brought about. According to a fourth feature, a special reinforcement frame comprising insulating sections is provided. The reinforcement frame is used to increase mechanical stability and absorb torsion forces and stresses which can occur when the card is used. At the same time, the reinforcement frame permits easy contact with strip conductors inside the card, e.g. for elements which form an antenna for contactless data-transmission.
Abstract:
The invention relates to an electric component (surface mountable component) which can be mounted on the surface of a printed circuit board, and to a method of manufacturing said component. Such a component comprises a thin, electroconductive layer or stack of layers which is provided with end contacts and arranged on a support of an electrically insulating material. In accordance with the invention, the dimension of the layer or stack of layers in at least one direction parallel to the surface of the support is smaller than the dimension of the support in said direction, while leaving portions of the surface of the support clear on at least two sides of the layer or stack of layers, and end contacts for the layer or stack of layers are situated on the surface portions of the support which are free of this layer or stack of layers, the thickness of said end contacts being larger than the thickness of the layer or stack of layers. The method in accordance with the invention enables small-size electric components to be manufactured in which the end contacts form a reliable electric connection with the electroconductive layer or stack of layers of the component.
Abstract:
An integrated circuit (12) is mounted on and interconnected with a circuit board (14) by an array of electrically conductive columns (16). The assembly (10) is fabricated by initially interconnecting the integrated circuit and the circuit board with an array of reflowable electrically conductive solder balls that correspond to the columns respectively. The circuit board is held with the integrated circuit extending downwardly therefrom. Sufficient heat is applied to cause the solder balls to reflow. The integrated circuit is pulled downwardly away from the circuit board by gravity such that the balls are stretched to form the columns, and the assembly is allowed to cool such that the columns solidify. A fixture may be provided against which the integrated circuit abuts after it has moved away from the circuit board by a predetermined distance such that the columns have a precisely determined height.
Abstract:
The present invention provides a copper-clad laminate characterized in that an electrolytic copper foil (1) on the glossy surface side (1a) of which a copper electrodeposit (2) is formed, is bonded at its glossy surface side (1a) to one side or each of both sides of a substrate (3), which has a fine-pitch wiring (circuit) pattern and exhibits a high etching factor. The present invention further provides a copper-clad laminate which can be suitably employed in the production of such a printed wiring board.