Assa Abloy Ab

Martin Michalk

Manfred Michalk

Sabine Nieland

The method comprises the following steps: the substrate in the form of a one-piece basic substrate () is prepatterned into regions corresponding to future modules, pads of the semiconductor chip () are then contact-connected in predetermined regions of a first area of the basic substrate () and on the top side () of the prepatterned basic substrate () and on one area side of the semiconductor chip () a first adhesive layer () is applied, a second adhesive layer () is subsequently applied to the other area side of the semiconductor chip (), and a curing of the adhesive layers () and a final patterning of the metallic basic substrate () are then effected.

Method and arrangement for contact-connecting semiconductor chips on a metallic substrate

The invention relates to a method and device that make it possible to increase the productivity of the chip bonding and the before and after working steps associated with the chip bonding. To this end, the invention provides a method for contacting semiconductor chips () on a metallic substrate (), whereby an etch resist () is located at least on one substrate side, and semiconductor chips () are contacted on the contacting side () by means of flip-chip bonding processes, during which a contacting region () is created on the contacting side () of the substrate (). A semiconductor chip () having two contact bumps () is contacted on said contacting region in such a manner that: a contact bump () is contacted on both sides of a structure line () or of a structure trench () dividing the contacting region (), and; after the contacting, an underfilling of the chip () ensues after which an electrically insulating passage () is made in the contacting region (), and a module (), which supports the semiconductor chip (), is removed from the substrate ().

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Leipzig, Germany

Martin Michalk