Abstract: An interposer (20) is used for decoupling a microchip (10) on a circuit board (30). The interposer (20) contains on its upper and lower surfaces structured metal layers (26a-26d) for attachment to the microchip (10) and the circuit board (30), respectively. Inside the interposer, there are two sets of mutually isolated metal structures (21, 22) extending substantially perpendicular to the upper and lower surfaces of said interposer (20). The first set (21) extends closer towards the upper surface than the second set (22), while said second set (22) extends closer towards the lower surface than said first set (21).

Abstract: A circuit for controlling the electric power to be supplied from a direct-current source to a load, particularly to a fan or heater in a motor vehicle. The circuit has a first field-effect transistor, to be connected in series with the load to be controlled, and a control circuit for controlling the field-effect transistor. The first field effect transistor has a second field-effect transistor connected in series therewith, and a resistor is connected in parallel with one of the field-effect transistors. The control circuit is adapted to control the two field-effect transistors in the sense of a fadeover between two final states in each of which one of the field-effect transistors is off and the other is on.

Abstract: A handle assembly for an x-ray examination apparatus for permitting a technician to position the apparatus above a patient with the aid of a support motor has a grip connected to the apparatus by two support elements, each of the support elements having a defined weak point, such as a segment of reduced thickness, and a plurality of control elements for operating the support motor in response to stresses experienced by the weak point caused by pulling on the grip. The control elements are connected between the support elements and the apparatus, spanning each weak point. Two control elements, disposed at right angles to each other, may be utilized for each weak point.