Abstract:
Assemblies and methods for interconnecting integrated circuits, particularly prepackaged ones, are disclosed. A multi-level electrical assembly--composed of a pin carrier, a set of pads, such as for receiving a surface-mounted integrated circuit, and a set of conductive pathways coupling the pads and the pins--can connect one or more integrated circuits to the socket or other attachment area of a circuit board. The pathways pass through a multi-layered interconnect board, which can be configured to permit any translation of pads to pins for different purposes, or to permit the coupling of additional circuit elements, such as a coprocessor or passive circuits, to the pathways. Inventive methods for forming the assemblies, and inventive systems in which the embodiment of the assembly can be used to increase circuit board density, are also disclosed.
Abstract:
Assemblies and methods for interconnecting integrated circuits, particularly prepackaged ones, are disclosed. A multi-level electrical assembly--composed of a pin carrier, a set of pads, such as for receiving a surface-mounted integrated circuit, and a set of conductive pathways coupling the pads and the pins--can connect one or more integrated circuits to the socket or other attachment area of a circuit board. The pathways pass through a multi-layered interconnect board, which can be configured to permit any translation of pads to pins for different purposes, or to permit the coupling of additional circuit elements, such as a coprocessor or passive circuits, to the pathways. Inventive methods for forming the assemblies, and inventive systems in which the embodiment of the assembly can be used to increase circuit board density, are also disclosed.
Abstract:
An apparatus and method for mounting and connecting a plurality of integrated circuit chip dice to a printed circuit substrate by means of a small circuit board (such as a Mini-Board) that may be adapted to attach and connect into a plurality of different types of printed circuit board systems. A pattern of conductors that monotonically increases in pitch and width from a central point on a planar structure to the perimeter edge of the structure allows matching of any type of printed circuit board connections. A standard Mini-Board may be fabricated and tested before attaching to an electronic system printed circuit board. Repair and rework is easily facilitated with a minimum amount of damage to a printed circuit board by utilizing the present invention. A plurality of active and passive electronic components may also be attached and connected to the planar structure of the present invention. A hybrid mini-system may be fabricated and tested before connecting it into a system printed circuit board.
Abstract:
A surface-mount integrated circuit converter board assembly having a pin grid array arranged enables a conventional surface-mount lead device to be mounted for subsequent attachment to a printed circuit board. The converter board assembly includes an array of spaced apart pins, arranged in rows and columns for mounting, and a plurality of spaced apart pin pads connected thereto. The pin pads are sufficiently spaced apart to avoid interference. A set of surface-mount lead pads is part of the converter board and is interconnected to the array of pins by a plurality of lead traces. The method of making the converter board with a surface-mount integrated circuit device includes forming or reforming the leads of the device to align with the surface-mount pads.
Abstract:
An electrical connector (100) for translating from a first plurality of interconnects (108) formed at a first pitch to a second plurality of interconnects (125) formed at a second pitch smaller than the first pitch comprises a first heat seal connector (105), which includes the first plurality of interconnects (108), and a second heat seal connector (120), which includes the second plurality of interconnects (125). The electrical connector (100) further comprises a translation circuit (110), which includes a first set of outer terminals (115) formed at the first pitch, wherein the first set of outer terminals (115) is aligned with and electrically coupled to the first plurality of interconnects (108). The translation circuit (110) further includes a second set of outer terminals (548) formed at the second pitch, wherein the second set of outer terminals (548) is aligned with and electrically coupled to the second plurality of interconnects (125). Connection circuitry (510-545) electrically couples the first and second sets of outer terminals (115, 548).
Abstract:
An electrical assembly for a removable printed circuit board, wherein the printed circuit board is mounted on a plate and spaced from the plate. Electrical devices, particularly power devices, are mounted on the plate and electrically connected to the printed circuit board by a terminal providing for a flexible high current interface in the form of a deformable bridge interface connector which is inserted into the printed circuit board to provide a circuit connection to the power device. The deformable bridge interface connector is formed so as to permit three directional movement of the printed circuit board, a positive low resistance high current connection to the power devices and which can be disconnected by unscrewing screws connecting the bridge with a terminal post which is connected to the power device.
Abstract:
Method and apparatus are disclosed for mounting a flexible film semiconductor chip carrier on a second level electronic package. The resulting electronic packaging structure includes electrically conductive spacers, such as solder balls or solder coated copper balls, which electrically interconnect outer lead bonding pads on the flexible film semiconductor chip carrier and corresponding bonding pads on the second level electronic package, and which physically support the flexible film of the semiconductor chip carrier substantially in a plane above the surface of the second level electronic package. This electronic packaging structure is made using a special assembly fixture comprising a base plate, a pressure insert with a resilient member, and a top plate. The flexible film semiconductor chip carrier with the spacers attached thereto is placed over the resilient member of the pressure insert which is clamped together with the second level electronic package between the top and base plates. Then, this assembly is heated to reflow the solder of the spacers, and the assembly fixture is disassembled, leaving the flexible film semiconductor chip carrier mounted on the second level electronic package with the flexible film of the carrier having a planar geometry as desired. The spacers may be attached to the flexible film semiconductor chip carrier using a special template having a pattern of openings corresponding to the pattern of outer lead bonding pads on the flexible film semiconductor chip carrier.
Abstract:
The component-connecting device comprises several stacked and assembled wafers. Each wafer is made of an insulating material and includes conductive tracks that are rectilinear and parallel to one another. The tracks of two adjacent wafers are perpendicular. The tracks of the different wafers are made on a given side of the device. The device has zones for the connection of a component to that face, of the faces bearing the tracks, which is free, and these zones are electrically connected to tracks of other wafers. Finally, the tracks of the different wafers are extended as a connection zone with the exterior.
Abstract:
An electrical connector (20) includes a body (22) having cavities (24) adapted to receive the leads (18) of components such as displays (16) to be interconnected by circuit traces (28) carried on a film (26) on the surface of the body with contact arms (34, 36) formed in the trace material to engage the leads extended therethrough into the cavities (24) and provide an electrical and mechanical connection of the component.
Abstract:
A multifunction card type electronic apparatus comprising a simple flat-shaped circuit board into which electronic components are mounted; a protective member that is disposed on at least the top surface of the circuit board except for a portion of the top surface of the circuit board on which external connection terminals are to be disposed; and a terminal board on the top surface of which the external connection terminals are disposed, the terminal board being placed and bonded onto the portion of the top surface of the circuit board by means of an electrically conductive material so that the external connection terminals are electrically connected to the circuit board, whereby the electronic apparatus is produced in a low cost, easy to produce and suited to a mass production.