NOVELTY - The method (900) involves laminating a conductive layer comprising a set of conductive layer openings to a support layer (910), where the support layer mechanically supports and maintains registration of a region of the conductive layer relative to other portions of the conductive layer after laminating the conductive layer to the support layer. One of connecting tabs is removed (914) for converting the set of the conductive layer openings into a continuous conductive layer channel partially surrounding and defining the region of the conductive layer.    USE - Method for forming an interconnect circuit for interconnecting an array of battery cells i.e. lithium-ion cells, for mobile and stationary applications.    ADVANTAGE - The method enables facilitating electrical connection of a contact pad to battery cell terminals to reduce level of stress on the connection. The method enables reducing number of discrete electrical connections used to interconnect cells in a same battery pack, thus potentially improving yield and reliability. The method enables patterning an insulating layer with a slot to reduce mechanical stress and/or improve vibration resistance in areas of interconnection between the interconnect circuit and the terminals. The method enables producing a back-bared flexible circuit, so that availability of patterned features on a same side of a conductive layer and the insulating layer to simplify process for aligning layers, thus reducing cost.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating a method for forming an interconnect circuit.    Method for forming an interconnect circuit (900)    Step for forming conductive layer (902)    Step for forming set of first conductive layer openings in conductive layer during operation (906)    Step for laminating conductive layer comprising set of conductive layer openings to support layer (910)    Step for removing one of connecting tabs for converting set of the conductive layer openings into continuous conductive layer channel partially surrounding and defining region of conductive layer (914)