Abstract:
An apparatus and method for providing three-dimensional carrier mounting of one or more electronic components. In accordance with one embodiment, the device mounting apparatus of the present invention includes an elastically resilient plastic substrate having component mounting surfaces in at least two dimensions. At least one press-fit component insertion cavity is disposed within the component mounting surfaces to provide compressive retention of the electronic component when press-fit into the cavity. Preferably, the cavity has a depth such that when the component is press-fit, it does not extend above the surface plane of the cavity. The insertion cavity is further characterized as including at least one conductive trace disposed on an inner surface of said insertion cavity and positioned on the insertion cavity surface such that the conductive trace contacts at least one lead of the electronic device retained within the insertion cavity.
Abstract:
The present invention relates to stretchable interconnects which can be made in various geometric configurations, depending on the intended application. The stretchable interconnects can be formed of an electrically conducting film or an elastomer material to provide elastic properties in which the interconnects can be reversibly stretched in order to stretch and relax the elastomer material to its original configuration. Alternatively, stretchable interconnects can be formed of an electrically conducting film or a plastic material to provide stretching of the material to a stretched position and retaining the stretched configuration. The stretchable interconnect can be formed of a flat 2-dimensional conductive film covering an elastomeric or plastic substrate. When this structure is stretched in one or two dimensions, it retains electrical conduction in both dimensions. Alternatively, the stretchable and/or elastic interconnects can be formed of a film or stripe that is formed on an elastomeric or plastic substrate such that it is buckled randomly, or organized in waves with long-range periodicity. The buckling or waves can be induced by various techniques, including: release of built-in stress of the conductive film or conductive stripe; pre-stretching the substrate prior to the fabrication of the conductive film or conductive stripe; and patterning of the surface of the substrate prior to the fabrication of the metal film. The stretchable interconnect can be formed of a plurality of conductive films or conductive stripes embedded between a plurality of layers of a substrate formed of an elastomer or plastic.
Abstract:
The invention relates to a method for interconnecting flexible printed boards (1). To this end, electroconductive layers (2, 3) that are disposed on two opposite sides are conductively interconnected by piercing a hole into the printed board (1) with a simple burring tool (10), thereby producing a through-hole (4), and then injecting a defined amount of a conductive adhesive (5) into said through-hole (4) by means of a dosing needle (20). During piercing, the material of the printed board is stretched to such an extent that on the through-hole (4), on the side of the printed board (1), a funnel-shaped recess (7), and on the opposite side an elevated bulge (6) is produced. The conductive adhesive (5) filling the through-hole (4) is fed from the bulge side and wets the surface of the bulge (6) and the surface of the funnel-shaped recess (7).
Abstract:
The invention concerns a method for making a dashboard subassembly comprising electrical and/or electronic components (1) connected to conductors (2) and attached to a rigid support (3). The invention is characterised in that it consists in: providing a flexible mat (4) provided with said conductors (2); mounting said components (1) on said mat (4), connected to said electrical conductors (2); rigidising said mat (4) by overmoulding it with a material designed to form said support (3). The invention also concerns a dashboard subassembly, in particular a motor vehicle dashboard console, obtained by said method.
Abstract:
A method and an apparatus for providing a planar and compliant interface between a semiconductor chip (120) and its supporting substrate to accommodate for the thermal coefficient of expansion mismatch therebetween. The compliant interface is comprised of a plurality of compliant pads (110) defining channels (117) between adjacent pads. The pads are typically compressed between a flexible film chip carrier (100) and the chip. A compliant filler (170) is further disposed within the channels to form a uniform encapsulation layer having a controlled thickness.
Abstract:
The present invention relates to a method of securing connection tags to electrical conductors in thermal foils and the like in which a contact plate is riveted in place near a hole passing through plastic layers (1, 2) and a metal part (3). In this method the contact plate (9) is riveted in place near a hole (4) passing through the plastic layers and a metal foil (3) arranged adjacent to the layers (1, 2), by means of a hollow rivet (6) which is passed through the hole. On the opposite side of the hole the rivet has been bent around an upset (8) at the lower edge of the hole, the hole (4) having been made with the aid of a mandrel (5), suitably hot and at least partly conical in shape, so that the upper edge of the hole is flanged to a recessed sealing surface for the rivet (6), the central part has been formed to an exposed cylindrical metal contact surface (7) against the rivet (6), and the lower side to a sealing upset (8), preferably reinforced at the edge, increasing the contact pressure and hermetically sealing the area around the contact surface.
Abstract:
The aim of the invention is to produce a mechanically and electrically secure solder bond between a contact pin and a solder eyelet on a conductor track sheet. With respect to its end (29), the contact pin (14) has a reduced section, in the form of a constriction (32) for instance, in which lodge sheet sections (28) which protrude out from the plane of the conductor track sheet (18) and which are formed when the contact pin pierces the initially virgin solder eyelet (23). The solder (25) connects the conducting film (21) of the solder eyelet (23) and sheet sections (28) with the contact pin (14).
Abstract:
A battery holder made of a flexible substrate is taught. A first part of the flexible substrate is folded over a second part of the flexible substrate at a first folding line. An adhesive layer is provided on the flexible substrate to fix a first portion of the first part onto the second part and hence to create a housing. The housing is defined by a first side wall, a second side wall, a top wall, a bottom wall and at least one opening. The at least one opening is perpendicular to the walls. The at least one battery is inserted into and removed from the housing through the at least one opening. A first electrical contact layer, to contact a first terminal of the battery, is provided on at least one of the first side wall, the second side wall, the bottom wall and the top wall. A second electrical contact layer, to contact a first terminal of the battery, is provided on at least one of the first side wall, the second side wall, the top wall and the bottom wall. A first conducting layer and a second conducting layer are provided on the flexible substrate to electrically connect the first electrical contact layer and the second contact layer, respectively.
Abstract:
Mehrlagen-Leiterplatte umfassend mindestens ein abwinkelbares Segmentteil, wobei in einem Biegeabschnitt des Segmentteils mindestens ein biegbar ausgebildetes funktionales Element integriert ist und mindestens eine Kerbkante angeordnet ist und die Leiterplatte zumindest in diesem Bereich teilweise biegbar ausgebildet ist, wobei im Biegeabschnitt des mindestens einen abwinkelbaren Segmentteils als funktionales Element mindestens ein Dickkupfer-Profil angeordnet ist, das bei einer Biegung bleibend verformbar ist.