Patent ID: 7402460

Claim:
A method of producing electrical units comprising chips with contact elements wherein the contact elements are suited for direct connection with contact terminals of external electric components in an electrically conductive fashion, comprising: each chip has an active surface with at least one bond pad and a non-active surface arranged opposite the active surface, and the connection of the contact elements with at least one bond pad of the chips is effected before the individual chips are removed from a grouping predefined on a wafer and comprising of rows and columns wherein the contact elements are made of a flexible foil to be applied onto the chips, and each contact element is constructed such that it has a form and length permitting the contact element after the removal of a corresponding electrical unit from the grouping to reach the plane which coincides with the non-active surface of the chip, the length of each contact element being approximately a length of the flexible foil between bond pads on adjacent chips in the grouping.