Abstract:
Stiffeners for tapes, films, or other connective structures, which are configured to be secured to a semiconductor device component, such as a semiconductor die or substrate, by tape-automated bonding processes, are fabricated by stereolithographic processes and may include one or two or more layers. The stiffeners are configured to prevent torsional flexion or bending of the connective structure to which they are to be secured. The stiffeners may reinforce sprocket or indexing holes in connective structures. The stiffeners may include apertures through which intermediate conductive elements or other structures secured to the connective structure may be exposed or protrude. The stereolithographic method for fabricating stiffeners may include use of a machine vision system that recognizes the position and orientation of one or more connective structures on which at least an element of each of the stiffeners is to be fabricated so that the application of material thereto may be controlled.
Abstract:
A process for manufacturing a flexible wiring board with easy handling at reduced production costs comprises the steps of forming a first wiring pattern and a guide pattern around the outer periphery of the first wiring pattern on a copper foil, and forming an insulating film on the first wiring pattern and guide pattern.
Abstract:
The present invention relates to a module component for which degradation of electrical properties caused by absorption of moisture in the air can be prevented. An intermediate layer comprises a first layer, a second layer and a core layer. The core layer comprises a material having a higher strength than the first layer and the second layer, has a network structure that extends out in planar fashion, has an outer periphery thereof positioned further to the inside than the outer peripheries of the first layer and the second layer, and is sealed between the first layer and the second layer. An upper layer is laminated on the upper surface of the intermediate layer. A lower layer is laminated on the lower surface of the intermediate layer. Mounted components are mounted on any one of the upper layer and the lower layer.
Abstract:
An apparatus, and method for using same, is described for a distributed load board stiffener. The apparatus may include a body having a central axis portion and multiple protusions extending away from the central axis portion towards respective ends. Each of the ends of the protrusions having a mounting point to mount a printed circuit board to a chassis support. The protrusions may operate to mount the board stiffener to a printed circuit board away from trace routing areas disposed centrally on the printed circuit board. The protrusions may operate to distribute a load around a periphery of the printed circuit board.
Abstract:
Packaging for components of an optical module. The packaging includes a flexible circuit coupled to two stiffeners. The packaging has a first sub-assembly with the first stiffener for receiving a first component. The packaging also has a second sub-assembly with the second stiffener for receiving a second component and for coupling to an external circuit. The packaging has a flexible portion with a first end for coupling to the first sub-assembly and a second end for coupling to the second sub-assembly. The flexible portion allows the first sub-assembly to be oriented with respect to the second sub-assembly to form an angle that is greater than zero degrees and less than 180 degrees.
Abstract:
A rigid bar of material is fastened to a circuit board to increase its stiffness. The bar is preferably a high modulus plastic such as liquid crystal polymer. Flexible fingers which surround a central opening are formed integrally with the bar and pop into throughbores in the circuit board. Each finger has at least one arcuate protrusion and, preferably several, which can engage the bottom of the circuit board. A rigid pin which may be made of steel is slid into the central opening and has an interference fit therewith to hold it in place to prevent flexible fingers from moving inwardly so the stiffener is held fast to the circuit board. In one embodiment, the stiffener has an I-beam cross section and arches enhancing the resistance to bending.
Abstract:
An electrical connection in which a flexible, elastic conductor track carrier is affixed by a connecting end to an electrical component and embedded in potting compound. To prevent breakage at the fastening point at the transition from the potting compound to the outside, the conductor track carrier is reinforced with additional layers of insulating material.
Abstract:
Apparatus for mounting and making electrical connections to sensor devices for use in three axis sensing including a flexible circuit and a substrate shaped so that when a portion of the flexible tape is secured to the substrate the sensor devices can be mounted on the substrate for sensing in the desired three directions. The sensors are connected to conductors in the flexible tape by wirebonds or by other means.
Abstract:
In a conductor foil for conductively connecting electrical and/or electronic components, the conductor foil including printed circuit traces, insulated to the outside and applied on a non-conductive, elastically malleable carrier foil. The conductive foil also includes soldering surfaces connected to the printed circuit traces, for soldering to electric terminals of components, in addition, the conductor foil includes feed line segments through which the printed circuit traces are led to the soldering surfaces, in order, in response to shaking stresses, to avoid damage to the soldering points by vibrations transmitted by the feed line segments. Furthermore, the conductor foil has stiffening segments branching off from the feed line segments, the stiffening segments, in response to shaking stresses, causing a force diversion of the vibrations onto the stiffening segments via the feed line segment movable end, which is not connected to the soldering surfaces.
Abstract:
Apparatus is provided for connecting the rear termination ends (32, 34) of connector contacts (12, 14) to wires (42, 44) of a cable (40) in a design where the solder connections are encased in molded plastic, which maintains the contacts so their axes (20, 22) extend precisely along forward-rearward directions. This is accomplished by providing a mold with an alignment mold part (110) with holders (114, 120) that either directly engage shoulders (160, 162) of the contacts or that engage shoulders (140, 142) formed on a circuit board (54) with holes (62) that closely receive rear termination ends (32) of a contact.