Abstract:
This invention relates to three dimensional packaging of integrated circuit chips into stacks to form cuboid structures. Between adjacent chips in the stack, there is disposed an electrical interconnection means which is a first substrate having a plurality of conductors one end of which is electrically connected to chip contact locations and the other end of which extends to one side of the chip stack to form a plurality of pin-like electrical interconnection assemblies. The pin-like structures can be formed from projections of the first substrate having an electrical conductor on at least one side thereof extending from this side. Alternatively, the pin-like structures can be formed from conductors which cantilever from both sides of an edge of the first substrate and within which corresponding conductors from both sides are aligned and spaced apart by the first substrate thickness. The spaces contain solder and form solder loaded pin-like structures. The pin-like structures can be directly solder bonded to conductors on a second substrate surface or the pin-like structures can be adapted for insertion into apertures in a second substrate. The second substrate provides a means for electrically inter-connecting a plurality of these cuboids. Preferably, the first and second substrates are circuitized flexible polymeric films. The second substrate is disposed on a third substrate, such as a PC board, with a resilient material therebetween which permits a heat sink to be pressed into intimate contact with an opposite side of the cuboid structures.
Abstract:
A circuit carrying substrate (108) accommodates circuit components (102) with different coefficients of expansion and contraction from that of the circuit carrying substrate (108). Beneath the components (102) a plurality of slots (104) are formed so as to minimize the effects of the differing coefficients of expansion and contraction.
Abstract:
Disclosed is a method of manufacturing a double-sided wiring substrate wherein fine wiring patterns having a low resistivity are formed on both surfaces of a substrate. An insulating substrate having upper, lower, and side surfaces is prepared. The inner wall of a through hole formed in the insulating substrate or a side edge portion of the substrate is used as the side surface. A thin metal film is formed on the entire surface of the insulating substrate including its side surface by a deposition. The insulating film is covered with a resist film except for a wiring pattern region to be formed, and plating is performed. When the resist film is removed, the thin metal film is exposed outside the wiring patterns formed by the thick metal film. Etching is performed for a short period of time to remove a surface layer of the thick metal film and exposed region of the thin metal film.
Abstract:
A method of manufacturing an electrical circuit system comprising electrical conductors on a flexible film and an article of manufacture made thereby, which may be used in place of printed circuit boards and which conductors form connector means for readily connecting to the leads of one or more sides of an electronic package. The electrical conductors also form a means for selectably connecting each electrical conductor from each pin to a selected input or output conductor, comprising a first and second plurality of conductors, such as a matrix having a column of conductors and a row of conductors. The electrical circuit system may be manufactured by numerous methods such as applying a conductive ink or paint by screening, photolithography or drawn by a digital plotter on a plastic film, such as Mylar. The film may include electrical edge connection means to provide input or output to or from said conductors. All or most of the system is integral, thus forming the conductors and the in-line connector portion of the conductors in continuum, using the same conductive material, such as ink, or paint and the same dielectric material, such as ink, or paint. A dielectric covers the appropriate portion of the system.
Abstract:
A modular building block for electronic circuitry is provided with areas for mounting circuitry thereon. Posts of a particular geometric shape and receptacles of a complementary geometric shape are provided on the substrate. The posts and receptacles are coated with an electrically conductive material and connected to nodes within the circuit such that when blocks are interconnected, post within receptacle, the interconnection provides both physical and electrical connection. An alternate embodiment is disclosed having fingers and edge cards, configured such that the fingers of one block grasp the edge cards of another block, providing physical and electrical connection between the blocks.
Abstract:
Interconnected printed circuit boards and a method of connecting different types of printed circuit boards is presented. The method is particularly well suited for connecting the circuit patterns of a flexible printed circuit board to the corresponding circuit patterns of a hard printed circuit board and is easily accomplished by the novel utilization of an electroconductive adhesive. The adhesive connection of the present invention also provides improved ease of separability of the connected circuit boards.
Abstract:
An improved connector having a printed wiring board structure and integrally connected to a printed wiring board. The connectors are suitable for use as part of a printed wiring board having a metal substrate. The connectors are finger-like structures, which mate either with other finger-like structures or with apertures in a printed wiring board. Both soldered and solderless connectors are disclosed.
Abstract:
A battery pack includes: a housing (18); one or more battery cells (12) housed inside the housing; one or more seat surfaces (52a, 54a, 56a, 58a) disposed inside the housing; a circuit board (16), which is housed inside the housing and is mounted on the seat surface(s); and one or more terminals (20b, 22b) electrically connected to the circuit board. One or more elastic sheets (60, 62) surround(s) the perimeter(s) of the terminal(s) and is (are) interposed between the circuit board and the seat surface(s).
Abstract:
A voltage protection for printed circuit boards is provided, which is slotted on one end, such that it has printed circuit board strips, a mount, which is configured to at least partially receive the printed circuit board, and a voltage protection cover, which is configured to be connected to the mount and the printed circuit board, such that a chamber system is formed, in which each printed circuit board strip is disposed inside a chamber, which is formed by the connection between the mount and the voltage protection cover.