The University of Texas System

Jonathan Reeder

Walter E Voit

Gregory T Ellson

Romil Modi

Alexandra Joshi Imre

A method of manufacturing an electrical device, comprising: forming a patterned inorganic liftoff layer to expose a target electrode site on a softening polymer layer, depositing an electrode layer on the inorganic liftoff layer and on the exposed target electrode site, and removing the inorganic liftoff layer by a horizontal liftoff etch to leave the electrode layer on the exposed target electrode site.

Electrical devices with electrodes on softening polymers and methods of manufacturing thereof

An electrical device, comprising a softening polymer layer, an electrode layer on a surface of the softening polymer layer and a cover polymer layer on the surface of the softening polymer layer. An opening in the polymer cover layer is filled with a reflowed solder, one end of the reflowed solder, located inside the opening, contacts a contact pad site portion of the electrode layer, and another end of the reflowed solder contacts an electrical connector electrode of the device.

Flexible electrical devices comprising electrode layers on softening polymers and methods of manufacturing such devices, including lift-off processes for forming electrodes on softening polymers, processes for forming devices with a patterned double softening polymer layer, and solder reflow processes for forming electrical contacts on softening polymers.

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Austin, TX, United States of America

Jonathan Reeder