Abstract:
Two or more integrated circuits are stacked into a high density circuit module. The lower IC is inverted. Electrical connection to the integrated circuits is made by module contacts on a flexible circuit extending along the lower portion of the module. In one embodiment, the flexible circuit provides a balanced electrical connection to two CSP integrated circuits. In another embodiment, the flexible circuit provides a balanced electrical connection to inter-flex contacts of additional flexible circuits on two submodules. The additional flexible circuits provide further balanced connections to CSP integrated circuits in each submodule.
Abstract:
The present invention stacks integrated circuits into modules that conserve board surface area. In a two-high stack or module devised in accordance with a preferred embodiment of the present invention, a pair of integrated circuits is stacked, with one integrated circuit above the other. The two integrated circuits are connected with a pair of flexible circuit structures. Each of the pair of flexible circuit structures is partially wrapped about a respective opposite lateral edge of the lower integrated circuit of the module. The flex circuit pair connects the upper and lower integrated circuits and provides a thermal and electrical path connection path between the module and an application environment such as a printed wiring board (PWB). The present invention may be employed to advantage in numerous configurations and combinations of integrated circuits in modules provided for high-density memories or high capacity computing.
Abstract:
A lens barrel and an imaging apparatus is provided for securely connecting an imaging element with an imaging circuit and advantageous in terms of downsizing of devices. A plurality of first connecting terminals is provided to a bottom face of an imaging element package. A flexible circuit board is constituted by an imaging element mounting section, an extending section and a connecting section. The imaging element mounting section includes a flexible circuit board and a plurality of second connecting terminals provided on a surface of the flexible circuit board so that each of the second connecting terminals match with a corresponding first connecting terminal. A metal plate is mounted at a position where the outline of the metal plate matches the outline of the package or the outline of the package is placed in the outline of the metal plate as viewed from the thicknesswise direction of the package, on the rear face of the imaging-element mounting section.
Abstract:
An electro-optical device includes: a first substrate having an end edge; a second substrate that has an edge crossing the end edge and a plurality of first wiring lines crossing the end edge, the second substrate having. flexibility and being connected to the first substrate so as to overlap the end edge; and first reinforcing members provided on the second substrate so as to cross the end edge, in a region between the plurality of first wiring lines and a portion where the end edge and the edge cross each other.
Abstract:
A magnetic head device includes terminal pads formed on a side surface of a magnetic head, the magnetic head being installed on the edge of one surface side of a base plate; and a flexible wiring board comprising a connection terminal portion connected to each of the terminal pads of the magnetic head, a wiring extension portion extended from the connection terminal portion, and an extension terminal portion extended from the wiring extension portion. Herein, the connection terminal portion is disposed on the one surface of the base plate adjacently to the terminal pads of the magnetic head on the base plate; the wiring extension portion is folded back toward the other surface side of the base plate; the extension terminal portion is mounted on the other surface of the base plate; and the connection terminal portion and each of the terminal pads of the magnetic head are electrically interconnected.
Abstract:
Flexible circuitry is populated with integrated circuitry disposed along one or both of its major sides. Contacts distributed along the flexible circuitry provide connection between the module and an application environment. The circuit-populated flexible circuitry is disposed about an edge of a rigid substrate thus placing the integrated circuitry on one or both sides of the substrate with one or two layers of integrated circuitry on one or both sides of the substrate. The substrate form is preferably devised from thermally conductive materials and includes a high thermal conductivity core or area that is disposed proximal to higher thermal energy devices such as an AMB when the flex circuit is brought about the substrate. Other variations include thermally-conductive clips that grasp respective ICs on opposite sides of the module to further shunt heat from the ICs. Preferred extensions from the substrate body or substrate core encourage reduced thermal variations amongst the integrated circuits of the module.
Abstract:
In one embodiment, a package-to-package stack is assembled comprising a first integrated circuit package, and a second integrated circuit package which are mechanically and electrically connected using an interposer and a substrate folded around the interposer. Other embodiments are described and claimed.
Abstract:
A thin profile memory module is provided which, in a variety of modes, can supplant traditional DIMM constructions of a variety of types such as, for example, registered and fully-buffered. In preferred modes, a memory module is provided that can meet or exceed the interconnective and capacity requirements for SO-DIMMs yet can simultaneously meet or exceed the profile requirements for such devices. In preferred modes, a flex circuit is populated along each of its first and second major sides with a plurality of array type (CSP) devices. Insertion contacts are disposed in two sets on the first side of the flex circuit and disposed proximal to a long edge area of the flex circuit. A substrate with first and second major sides provides a form for the module. The flex circuit is wrapped about an edge of the substrate to place one set of the insertion contacts along the first side of the substrate and the other set of the insertion contacts along the second side of the substrate while the ICs populated along the second side of the flex circuitry are disposed between the flex circuit and the substrate.
Abstract:
A flex circuit is populated on one or both sides with plural integrated circuit die. In a preferred mode, the flex circuit is populated with flip-chip die. One side of the flex circuit has a connective facility implemented in a preferred mode with edge connector contacts. The flex circuit is disposed about a substrate to form a circuit module that may be inserted into an edge connector such as ones typically found on a computer board.
Abstract:
A flexible circuit is populated with integrated circuits. Integrated circuits populated on the side of the flexible circuit closest to the substrate are disposed, at least partially, in what are, in a preferred embodiment, windows, pockets, or cutaway areas in the substrate. In a preferred embodiment, the overall module profile does not, consequently, include the thickness of the substrate. Other embodiments may only populate one side of the flexible circuit or may only remove enough substrate material to reduce but not eliminate the entire substrate contribution to overall profile. The flex circuit may be aligned using tooling holes in the flex circuit and substrate. The flexible circuit may exhibit one or two or more conductive layers, and may have changes in the layered structure or have split layers. Other embodiments may stagger or offset the ICs.