Abstract: A contacting head for making a wire connection, particularly an aluminum or gold wire connection on an integrated circuit by ultrasonic or thermocompression bonding, in which a contacting arm is provided with a concave contacting tool or a capillary, and supplies ultrasonic or heat energy. The concave contacting tool has a gripper, or the capillary has a wire clamping device for effecting a feed or clamping of the wire during movement of the contacting arm. A driving unit provides for threading the wire through a wire guiding device which is entirely enclosed, and through the concave contacting tool or the capillary. The driving unit also provides for controlling the wire tension and produces a gas stream in the enclosed wire guiding device. A magnetic arrangement with a permanent magnet and a non-ferrous core provides for electrodynamic contact pressure control of the contacting arm and for control of the gripper.

Abstract: A method of manufacturing a suction pipette of sinterable material for receiving substantially rectangular, semiconductor crystal plates. The pipette is formed with a rectangular recess and has walls defining the recess which narrow towards the floor of the recess; an evacuation channel communicates with the floor. The method includes the steps of inserting a binder into the material to be sintered, and fabricating first and second parts for assembly of the pipette, the first part being formed with an open channel and having sidewalls defining the channel. The second part is insertable into the first part and has cam-shaped end projections formed with respective inner walls, and outer walls for making contact with the sidewalls upon insertion of the second part into the first part.

Abstract: A process characterized in that a linear spare wire conveyed in a tubular member has a wire piece fused-off and retained, at the fused-off end of the wire piece and the spare wire each there being a sphere fused thereon, the wire piece being displaced transverse to the axis of the spare wire and then together with the tubular member conveying the spare wire is moved forward in the direction of the referred-to axis through a predetermined distance in which, during the forward displacement, the sphere formed at the end of the spare wire contacts the tubular piece and is through the pulling-away from the spare wire moved into a position in which this sphere has with reference to a pressing tool for picking up the wire piece is located at a predetermined fixed distance in the direction of the referred-to axis, the wire piece being conveyed transverse to the referred-to axis toward the pressing tool and being picked up by the latter, upon which the tubular member while retaining of the spare wire is moved back int