Abstract:
Verfahren zum Herstellen einer Leiterplatte (1), umfassend die Schritte Bereitstellen eines Substrats (2), Vorsehen von zumindest einer Leiterbahn (31) und zumindest einer Anschlussfläche (32) auf dem Substrat (2), und Aufbringen zumindest eines ersten Lots (42) und zumindest einer elektronischen Komponente (5) auf die Anschlussfläche (32), gekennzeichnet dadurch, dass auf oder an zumindest einen Teil der Leiterbahn (31) ein zweites Lot (41) aufgebracht wird, und das erste Lot (42) auf der Anschlussfläche (32) und das zweite Lot (41) auf der Leiterbahn (32) gemeinsam bis mindestens zu einem Schmelzpunkt des ersten Lots (42) und des zweiten Lots (41) erhitzt wird, wobei ein Querschnitt von zumindest einem Bereich der Leiterbahn (31) durch das zweite Lot (41) vergrößert wird.
Abstract:
An electrical circuit apparatus (300) that includes: a substrate (330) having a ground layer (336), at least one device aperture (332), and at least one solder aperture (334); a heat sink (310); and an adhesive layer (320) for mechanically coupling the heat sink to the ground layer of the substrate such that at least a portion of the substrate device aperture overlaps the heat sink, the adhesive layer having at least one device aperture and at least one solder aperture, wherein aligning the at least one substrate solder aperture with the at least one adhesive layer solder aperture and aligning the at least one substrate device aperture with the at least one adhesive layer device aperture enables solder wetting in a predetermined area between the heat sink and the ground layer of the substrate.
Abstract:
Embodiments of the present invention disclose a PCBA chip package component and a soldering component, which can facilitate repairing of a PCBA chip package module. The PCBA chip package component in the embodiments of the present invention includes: a module board and an interface board. A first soldering pad is set on the bottom of the module board, a second soldering pad is set on top of the interface board, and the second soldering pad is of a castle-type structure. The first soldering pad includes a first soldering area, a second soldering area, and a connection bridge that connects the first soldering area and the second soldering area. The first soldering area corresponds to a top surface of the second soldering pad, and when the first soldering area is soldered to second soldering pad, the second soldering area is located outside the second soldering pad. The embodiments of the present invention further provides a soldering component. The embodiments of the present invention may facilitate the repairing of the PCBA chip package component.
Abstract:
A solder transfer method which uses an electrically-conductive, e.g., metal, surface, of a stamping or pin or pad as a vehicle to transfer molten solder from a remote solder reserve toa solder joint to be made. In a preferred embodiment, a solder deposit previously-formed on a surface mount pad during a first reflow step will transfer up to the adjoining contact surfaces by a wicking process to provide the additional solder needed to fabricate a robust solder joint. When one of the contact surfaces is a contact or pin on a first PCB, and the other contact surface is a SMT pad on a second PCB serving, for example, as a memory card, the process of the invention makes for an easy SMT processed attachment of the memory card to the first PCB without the need to add solder during a second reflow step to make a robust solder joint betweenthe contact surfaces.
Abstract:
The electronic circuit unit of the present invention is provided with the broad width lands (4a) and the thin width lands (4b) tied with the broad width lands, which are configured by a solder resist (5) that is formed on the surface of the circuit board (1). Owing to this configuration, the solders placed on the thin width lands (4b) are drawn toward the broad width lands (4a), which increases the quantity of the solder build-up on the broad width lands, and accompanied with this increase, swells the heights of the solder build-up on the broad width lands. Thus, the electronic circuit unit of the present invention ensures the soldering.
Abstract:
Embodiments of the present invention disclose a PCBA chip package component and a soldering component, which can facilitate repairing of a PCBA chip package module. The PCBA chip package component in the embodiments of the present invention includes: a module board and an interface board. A first soldering pad is set on the bottom of the module board, a second soldering pad is set on top of the interface board, and the second soldering pad is of a castle-type structure. The first soldering pad includes a first soldering area, a second soldering area, and a connection bridge that connects the first soldering area and the second soldering area. The first soldering area corresponds to a top surface of the second soldering pad, and when the first soldering area is soldered to second soldering pad, the second soldering area is located outside the second soldering pad. The embodiments of the present invention further provides a soldering component. The embodiments of the present invention may facilitate the repairing of the PCBA chip package component.