Abstract:
Verfahren zur Reparatur einer Leiterplatte (1) mit zumindest einem defekten Bauteil (2), welches über zumindest eine leiterplattenseitige Kontaktstelle (3) mechanisch und/oder elektrisch mit der Leiterplatte (1) verbunden ist, wobei das Verfahren zumindest folgende Schritte umfasst: - Entfernen des defekten Bauteils (2) von der Leiterplatte (1); - Reinigen der mindestens einen leiterplattenseitigen Kontaktstelle (3); - Aufbringen einer Lotpaste (4) auf die mindestens eine gereinigte leiterplattenseitige Kontaktstelle (3) mittels eines Lotauftragsstempels (5), wobei der Lotauftragsstempel (5) zuerst in einem Benetzungsschritt zur Benetzung mit der Lotpaste (4) in ein Reservoir (6) mit Lotpaste (4) zumindest teilweise abgesetzt wird und anschließend der benetzte Lotauftragsstempel (5) in einem Übertragungsschritt auf der mindestens einen gewünschten leiterplattenseitigen Kontaktstelle (3) abgesetzt wird, so dass ein Aufbringen der Lotpaste (4) auf die mindestens eine leiterplattenseitige Kontaktstelle (3) ermöglicht wird; - Bestücken der Leiterplatte (1) mit einem für das defekte Bauteil (2) vorhergesehenen Ersatzbauteil (7); - Anlöten des Ersatzbauteils (7).
Abstract:
A method for repairing a lighting system comprises identifying a fault location; disposing over or under the substrate at the fault location a patch comprising (i) a patch substrate, (ii) two conductive traces disposed on the patch substrate, and (iii) a replacement light-emitting element electrically coupled to the two conductive traces of the patch; and electrically connecting the replacement light-emitting element across the fault location by electrically connecting each of the conductive traces of the patch to one of the conductive traces defining the fault location.
Abstract:
A method for uncoupling an interference shield from a circuit board is provided. The method includes providing a circuit board including a surface mounted component and an interference shield configured to provide shielding of the surface mounted component. The interference shield is coupled to the circuit board by a joint. Heating of the joint is effected by induction heating such that the interference shield becomes configured for displacement relative to the circuit board in response to application of a mechanical force. An apparatus for effecting the uncoupling is also provided.
Abstract:
There is provided a method comprising: examining the location of one or more feature(s) of the one or more component(s) of a circuit arrangement to determine the displacement of the location of said one or more associated communication contact(s) with respect to a designed location for the communication contact(s), and providing corrective communication path layout data of said circuit arrangement based upon the said displacement(s).
Abstract:
A self-joining polymer composition, comprising a polymer, a plurality of amine pendant groups attached to the polymer and a plurality of microcapsules of flowable polymerizable material dispersed in the polymer where the microcapsules of flowable polymerizable material including microcapsules and flowable polymerizable material inside the microcapsules. The microcapsules are effective for rupturing with a failure of the polymer so the flowable polymerizable material cross-links with the reactable pendant groups upon rupture of the microcapsules.
Abstract:
The invention relates to a method of preparing a universal detacher for electronic components, comprising a desoldering paste for removing any type of electronic component. The invention comprises the alloying of tin, lead and mercury, together with zinc chloride, potato starch, petrolatum, camphor, eucalyptus and a colouring agent, which produces a desoldering paste for electronic components. The inventive desoldering paste can be used to retrieve any piece of electronic circuitry in full and without causing any damage.
Abstract:
L'invention concerne un procédé et un dispositif de remise en forme d'un ensemble d'éléments conducteurs distribués sur la face inférieure d'un module électronique, ledit ensemble d'éléments conducteurs formant moyen de report du module sur une carte mère et/ou moyen de blindage électromagnétique de la face inférieure du module et/ou moyen d'interconnexion électrique avec la carte mère. Selon l'invention, le procédé comprend une étape de refusion sous contrainte du module, dans un volume à parois de formes prédéterminées pour permettre une libération des contraintes entre au moins certains des éléments constitutifs du module, de façon que les sommets des extrémités libres de l'ensemble des éléments conducteurs épousent la forme d'une enveloppe bidimensionnelle ou tridimensionnelle prédéterminée. Dans un mode de réalisation particulier, le volume à parois de formes prédéterminées est un volume dont une première paroi, destinée à être en contact avec les sommets des extrémités libres de l'ensemble des éléments conducteurs, est une paroi plane. L'enveloppe bidimensionnelle ou tridimensionnelle prédéterminée est dans ce cas un plan, et la remise en forme est une remise en état de la planéité.
Abstract:
An apparatus for replacing a defective PCB unit formed on a PCB panel includes a location correcting table on which a nondefective PCB unit for replacing the defective PCB unit is disposed, a panel seating table, on which a PCB panel where the defective PCB unit is removed is disposed, a seating table support on which the panel seating table is detachable installed by a fastener, a location correcting driver for driving the location correcting table relative to the panel seating table to correct location of the nondefective PCB unit with respect to the PCB panel, a vision camera for reading location of specific points on the nondefective PCB unit and the PCB panel respectively disposed on the location correcting table and the panel seating table, a reading location varying driver for sequentially moving the specific points read by the vision camera below the vision camera, and a controller for controlling the location correcting driver and the reading location varying driver, receiving operation results of the vision camera, the location correcting driver and the reading location varying driver, and controlling the location correcting driver by calculating location correcting data based on the operation results.
Abstract:
A method and apparatus for building a memory module using improved patching schemes comprises, mounting multiple primary and secondary memory parts on a mufti-layer circuit board, positioning I/O bit line patching networks adjacent to the primary and secondary memory parts, matching read/write control signals for primary and secondary memory parts which share I/O bit line patching networks, testing primary and secondary memory parts to identify non-operable I/O lines, and patching any non-operable I/O line of a primary memory part by replacing it with a fully operable I/O line of its associated backup memory part. The method and apparatus include mufti-layer circuit boards which utilize 2-to 1, 4-to-1, and 8-to-1 patching configurations.