Punching grid arrangement for a transmission control module with Cu and Al punched grids connected by an encapsulated wire bond connection

摘要

A punched grid arrangement (1) for a transmission control module (100) is proposed, which has a first punched grid (3) with aluminum-containing strip conductors (9) and a second punched grid (5) with copper-containing strip conductors (11). The stamped grid arrangement (1) is characterized in that printed conductors (9) of the first stamped grid (3) are electrically connected to printed conductors (11) of the second stamped grid (5) by means of a wire bond connection (19) and connecting regions (7) in which in each case an aluminum-containing conductor track (9) of the first stamped grid (3) is connected to a copper-containing conductor track (11) of the second stamped grid (5) by means of one of the wire bond connections (19) by means of a sealing compound (13) hermetically sealed. The potting compound (13) may e.g. an epoxy resin composition, a PU composition or an acrylate composition, and is capable of doing so, in particular the bonding regions in which otherwise primarily corrosion processes due to the contact of different noble metals, i. Aluminum and copper, may occur reliably e.g. to protect against aggressive gear oil.