Abstract:
A connector post or pin is disclosed which is particularly suitable for use with printed circuit board assemblies. The post includes a coined portion which is designed to permit the pin to be easily inserted into holes of a predetermined size in printed circuit boards, and to increase the quality of a solder joint between the post and the printed circuit board. A solder stripe is placed on each post in the coined region to facilitate soldering of the posts to conductive portions of the printed circuit board. The posts are attached in groups to break-away carrier strips to aid in the rapid assembly of large numbers of posts to printed circuit boards. The posts may also include provisions for coupling them to multilayered printed circuit assemblies. A method of fabricating the coined post is also disclosed which converts a post with normally an interference fit in a printed circuit board aperture to a post which is freely received in the aperture together with masses of solder adhered to said post.
Abstract:
Embodiments pin connections, electronic devices, and methods are shown that include pin configurations to reduce voids and pin tilting and other concerns during pin attach operations, such as attachment to a chip package pin grid array. Pin head are shown that include features such as convex surfaces, a number of legs, and channels in pin head surfaces.
Abstract:
The present invention provides a printed substrate having a novel structure in which substrate terminals can be fixed to the printed substrate without needing a base, and the substrate terminals can be press-fitted into through-holes without applying pressing force to printed wiring and a plating layer in the through-holes, and also provides a printed substrate with terminals that uses this printed substrate. A printed substrate includes through-holes into which the first end portions of substrate terminals are to be inserted. The through-holes each include press-fitting regions into which the first end portion of a substrate terminal is to be press-fitted, and conduction regions arranged so as to oppose the outer circumferential surfaces of the first end portion of the substrate terminal via gaps in directions perpendicular to the axis. Printed wiring is connected to the conduction regions, and a plating layer is adhered to the conduction regions.
Abstract:
The invention provides a spacer for soldering comprising an elongate body having one end provided with a tapped hole and an opposite end provided with a transverse bearing surface having a smooth centering peg projecting therefrom, the peg has a longitudinal outer passage extending over at least a fraction of its length as far as the transverse bearing surface to enable molten solder to penetrate by capillarity as far as the transverse bearing surface. The invention also provides a module including such a spacer.
Abstract:
A printed circuit board has a substrate having a circuit pattern; a primary component receiving hole positioned on the substrate and having an inner surface electrically connected with the circuit pattern; and at least one secondary component receiving hole positioned on the substrate around the primary component receiving hole, and having an inner surface electrically connected with the circuit pattern and the inner surface of the primary component receiving hole.
Abstract:
An electrical apparatus, comprising a circuit board, and a capacitor installed on the circuit board; the capacitor is detachably installed on the circuit board. The capacitor can be conveniently detached from the circuit board; therefore, a damaged capacitor can be easily replaced with a new capacitor, saving cost by avoiding the problem in the prior art that the entire electrical apparatus is discarded or causes downtime for repairs due to a damaged capacitor.
Abstract:
The invention relates to an arrangement comprising an electric and/or electronic module (10) and a circuit carrier (12), wherein at least one electric connecting line (14) of the electric and/or electronic module (10) can be accommodated in a recess (16) of the circuit carrier (12). The arrangement comprises at least one clamping element (18a, 18b, 18c, 18d) which immobilizes the at least one connecting line (14) in the recess (16) once it has been introduced into the recess (16).
Abstract:
An electronic apparatus includes, for example, a circuit board with an electronic component and a piezoelectric element, a reference potential pattern that gives a reference potential to at least one of the electronic component and the piezoelectric element, and a solder land connected to the reference potential pattern. On the circuit board, the electronic component is located on a downstream side in a transport direction of the circuit board during mounting of the piezoelectric element and the electronic component on the solder land, and the piezoelectric element is located on an upstream side in the transport direction.