Robert Boschgmbh

Walter Zein

Ralf Schmid

Martin Frey

Wolfgang Jacob

Juergen Zaremba

To make holes in ceramic green sheets that are needed to create feedthroughs, it is proposed to make the holes by using a gas that is under a higher pressure than atmospheric pressure and that is expelled in a pulsed manner from a pressure vessel and thereby acts on a principal surface of a ceramic green sheet, at at least one location at which a hole is to be made, in such a way that material is shot out of the ceramic green sheet at that location. This eliminates the disadvantages associated with the use of punches to punch holes.

Method for making holes in ceramic green sheets

A device for the electrical and mechanical connection of a first, preferably elastically flexible printed circuit board to a second printed circuit board wherein an electrically conductive contact pin, protruding from the second printed circuit board and projecting through an opening in the first printed circuit board, is electrically conductively connected to a conductor track of the first printed circuit board. The device further includes an electrically conductive clamping part with elastically flexible protrusions embodied on it that embrace the contact pin by nonpositive engagement, and a bearing region of the clamping part that is electrically connected to the protrusions is pressed in prestressed fashion against a conductor track disposed on the first printed circuit board.

Device for the electrical and mechanical connection of two printed circuit boards

In a conductive foil, for the conductive connection of electrical/electronic components, the foil including an elastically malleable, non-conductive carrier foil strip on which a plurality of printed circuit traces are arranged, insulated to the outside and running next to each other in the longitudinal direction of the carrier foil strip, in order to ensure that the conductive foil can be bent in a lasting two- or three-dimensional shape. The conductive foil is provided with at least one lastingly malleable shaping element that is insulated from the printed circuit traces and that runs in the longitudinal direction of the carrier foil strip.

Growing community of inventors

Metzingen, Germany

Walter Zein