Abstract:
An electrical connector includes an insulative housing adapted to engage a conductive contact (20). The conductive contact has a tail end, wherein the tail end (22) is angled and has a generally dished shape such that at least a portion of the tail end terminates within a hole (10) in a contact pad (12) of a circuit board (1). The conductive contact tail end in a dished shape has the advantages of facilitating the guiding of the tail end into or out of the hole of the circuit board during wipe actions, without removing gold plated layer, and of achieving a reliable travel of the tail end across the hole of the contact pad of the circuit board.
Abstract:
In a vibrator support structure, a vibrator is supported on a substrate through support pins, substrate connection portions of the support pins and pin connection portions of the substrate are joined through conductive adhesive which is made of a resin including conductive filler and has a pencil hardness of about 4H or less, and the conductive adhesive has a thickness which can buffer vibrations and impacts propagated through the support pins.
Abstract:
In a vibrator support structure, a vibrator is supported on a substrate through support pins, substrate connection portions of the support pins and pin connection portions of the substrate are joined through conductive adhesive which is made of a resin including conductive filler and has a pencil hardness of about 4H or less, and the conductive adhesive has a thickness which can buffer vibrations and impacts propagated through the support pins.
Abstract:
A circuit (1) includes a plate-shaped substrate (2), a thick-film conductor array (8) having first contact parts (11), with which second contact parts (13) of connecting leads (15) are connected two-dimensionally by a compression bond. The second contact parts (13) are configured tape-like by compression from a copper strand. An additional, non-conducting positional seal (30) of a potting compound (31) positively locates the connecting leads (15) in position with respect to the substrate (2), as a result of which very high currents can be handled at very high operating temperatures by simple means.
Abstract:
An electronic part is tacked to a circuit board, leads of the electronic part being made into contact with cream solder built up on the circuit board, and thereafter, the circuit board is heated up so as to melt the cream solder in order to solder the electronic part to the circuit board. In this procedure, the melting temperature of a hardener in the tacking bond, that is, the hardening temperature of the tacking bond, is higher than that of the cream solder, thereby making it possible to prevent hindrance to sinking of the lead terminal of the electronic part into the melted cream solder.
Abstract:
A process and device are provided for welding a flat multiwire cable onto a printed circuit, the wires of the cable being evenly spaced and the printed circuit comprising conductive strips of equal spacing. In accordance with the invention, the conductors are stripped close to their end, bent so that their lower portion is of the same length as the conductive strip and undergo a preliminary cut. The lower portion of the wire is there inserted onto the conductive strip and heated. The portion which is preliminary cut, is removed by plying.
Abstract:
A welding method and means is disclosed utilizing a conductive foil disposed between or adjacent members to be welded together with the foil serving as one electrode and one or both of the members serving as another electrode of the welding circuit and with the members being forced together or with the foil being forced against the members by a separate electrode.
Abstract:
First workpieces, for example, beam-leaded integrated circuits, and the like, are bonded to second workpieces, for example, metallized ceramic substrates by first depositing a quantity of primary explosive, such as lead azide, onto each beam lead and then detonating the explosive to explosively bond the integrated circuits to the substrate. In another embodiment of the invention, the explosive bonding force is applied through a buffer sheet of plastic or metallic material which protects the surface of the substrate from contamination and which, in addition, dampens the shock of the explosion. In yet another embodiment of the invention, metal conductive paths are explosively bonded directly to a ceramic or glass substrate to form a ''''printed circuit pattern.'''' The same techniques are used to manufacture resistors, capacitors, inductors, etc.