Abstract:
An interconnection circuit and related techniques are described. The interconnection circuit includes a plated through hole having a plurality of electrically isolated segments with at least one of the plurality of electrically isolated segments coupled to a signal path and at least one of the electrically isolated segments coupled to ground. With this arrangement, the circuit provides a signal path between a first and a second different layers of a multilayer. By providing one segment as a signal segment and another segment as a ground segment the size and shape of the electrically isolated segments can be selected to provide the interconnection circuit having a predetermined impedance characteristic. The interconnection circuit can thus be impedance matched to circuit board circuits, devices and transmission lines, such as striplines, microstrips and co-planar waveguides. This results in an interconnection circuit which maintains the integrity of relatively high-frequency signals propagating through the interconnection circuit from the first layer to the second layer. The interconnect circuits can be formed by creating distinct conductor paths within the cylindrical plated through-holes using variety of manufacturing techniques including, but not limited to, broaching techniques, electrostatic discharge milling (EDM) techniques and laser etching techniques.
Abstract:
An electronic part capable of preventing a flux from intruding thereinto without using a sealing material can be provided. In the electronic part 1, terminals 3 to be inserted through electrode holes of a circuit board are projected from a casing 1a. In the terminals 3, there are provided cut-in portions 8 extending to a space formed between the casing 1a and the circuit board when the terminals 3 are inserted through the electrode holes.
Abstract:
Connecting and mounting means for substrates comprises an elongated mounting bar having connecting devices mounted therein at spaced intervals. The connecting devices have aligned spring receptacles which receive and support the substrate and have posts which are adapted to enter holes in a printed circuit board.
Abstract:
An electrical connector includes an insulating body having a bottom surface, a receiving groove formed in the bottom surface, and at least one support block projecting downwardly from the bottom surface for connection with a circuit board and cooperating with the bottom surface to define a venting space that communicates with the receiving groove and a solder hole in the circuit board. A conductive terminal includes a first positioning portion extending into and positioned in the receiving groove, and a second positioning portion connected to the first positioning portion and extending through the venting space and adapted to be positioned in the solder hole.
Abstract:
A universal press-fit connection allows a component having a connector pin to be connected to a compatible plated through hole of a circuit board regardless of circuit board thickness. The connector pin includes a proximate end adjacent the component, a distal end with a fork lock, and a compliant portion between the proximate and distal ends. A multi-width through hole includes a first portion partially extending through the circuit board and a second, wider portion extending beyond the first portion. The fork lock initially moves radially inward upon insertion into the first portion via flexing of the compliant portion, and re-expands when entering the second portion. The compliant portion engages the through hole and the fork lock secures the connector pin in the through hole.
Abstract:
A system provided with a solder joint includes: a circuit board (101) provided with an aperture (102), an electrical component (103) including a conductor foot (104) protruding through the aperture, and soldering metal (105) inside the aperture and in contact with the conductor foot. The system further includes a thermal conductor element (106) including a first portion outside the aperture and a second portion inside the aperture and in contact with the soldering metal. The thermal conductor element is capable of conducting heat and thereby it intensifies the heat transfer into the aperture during pre-heating which precedes the process phase when the molten soldering metal is enabled to be absorbed into the aperture. Thus the reliability of the solder joint is improved, i.e. a risk of a faulty “cold” solder is decreased.
Abstract:
A connecting system for electrically connecting electronic devices includes an electrically conductive first connector, an electrically conductive second connector and a clip element. The first connector is insertable in the second connector. The first connector or the second connector has a first opening into which the clip element can be inserted. In the inserted state, the clip element generates a contact pressure due to which the first connector and the second connector are pressed against one another so that an electrical contact between the first connector and the second connector is safeguarded.
Abstract:
In order to releasably mount an electronic or electric component, the component is combined in a subassembly along with a support element and a housing. An insulating member that is penetrated by through-holes is mounted on the external face of the support element. Connecting elements are accommodated within said through-holes. The connecting elements are electrically and mechanically connected to the support element on one side and project from the front of the insulating member on the other side, where the connecting elements are designed as contact elements that are to be inserted into plated-through bores of a printed circuit board. This allows the electronic component to be plugged as a subassembly to the housing containing the printed circuit board and be removed again as required. If necessary, multiple components can be arranged on the support element inside the housing if said components form a functional unit.
Abstract:
An electronic device includes a printed circuit board and an electronic element having a terminal. The terminal has a surface section and an insertion section. The printed circuit board includes a through hole extending from a first surface to a second surface of the printed circuit board, a surface land disposed on the first surface, and an insertion land integrally disposed on a sidewall of the through hole and on a periphery around the through hole. The surface section is coupled with the surface land through a solder. The insertion section is disposed in the through hole and is coupled with the insertion land through the solder. The surface section has a recess part and a portion of recess part is disposed so as to be axially aligned with a portion of the through hole.
Abstract:
A socket may be formed with socket pins that include two spring biased arms biased to extend away from one another. The arms may be provided with tapered upper surfaces that engage contact holes on a pin guide 18 of an integrated circuit package, camming the socket pin arms together. The pin guide may have a tapered via structure that expands as it extends into the package. Thus, as the spring arms spread apart inside the pin guide, they may rotate through an angle which causes contacting surfaces on the spring arms and the pin guide to be parallel, creating good surface contact.