Irrigated balloon catheter with flexible circuit electrode assembly

An electrophysiology catheter, comprising:

• a balloon with a membrane;
• and
• a flex circuit electrode assembly on the membrane, including:
• a plurality of radiating strips disposed on the membrane, each of the plurality of radiating strips having a tapered configuration in which a wider proximal portion having a proximal end tapers to a narrower distal portion having a distal end, each of the plurality of radiating strips comprising a substrate having a first surface and a second surface;
• a contact electrode disposed on each first surface of the substrate of each of the plurality of radiating strips, the contact electrode including:
• an elongated portion, and
• a plurality of transversal fingers extending from the elongated portion, the plurality of transversal fingers comprising a first finger disposed adjacent to and in between a second finger and a third finger, the first finger being longer than the second finger and the third finger such that the plurality of transversal fingers follows the tapered configuration of each of the plurality of radiating strips;
• a wiring electrode disposed on each second surface of the substrate of each of the plurality of radiating strips;
• and
• a conductive via extending through the substrate of each of the plurality of radiating strips and connected to the contact electrode and the wiring electrode.