Processes for removing organic layers and organic electronic devices formed by the processes
View Patent ↗A process for protecting first electrodes, conductive leads and the underlying substrate from the process of removing organic layers during the fabrication of an organic electronic device. After first electrodes and conductive leads are formed over a substrate, a protective layer is selectively formed over the structure, with the protective layer not being disposed over selected portions of the first electrodes, the conductive leads and the substrate. Organic layers are then formed over the structure, and second electrodes are formed over the organic layers. Those portions of the organic layers disposed over the selected portions of the first electrodes, conductive leads and substrate are removed, and the protective layer protects adjacent portions of the first electrodes, conductive leads and substrate from the process of removing the portions of the organic layers.
1. An electronic device, comprising:
at least one first electrode disposed over a substrate;
at least one conductive lead disposed over the substrate and laterally spaced apart from the at least one first electrode;
a protective layer of material selectively disposed over the at least one first electrode and the at least one conductive lead, wherein:
the protective layer is not disposed over one or more selected portions of the at least one first electrode and the at least one conductive lead; and
the protective layer is disposed over all non-selected portions of the at least one first electrode and the at least one conductive lead;
organic active material selectively disposed over the protective layer, wherein the organic active material is not disposed over at least part of the one or more selected portions; and
at least one second electrode disposed over the organic material.
2. The device of claim 1 , wherein the one or more selected portions include at least one portion of the at least one first electrode and at least one portion of the at least one conductive lead.
3. The device of claim 1 , wherein the at least one first electrode includes a pixel portion and an anode lead portion, wherein the anode lead portion further comprises a wire bonding pad area.
4. The device of claim 3 , wherein the one or more selected portions includes the pixel portion, the wire bonding pad area, or combinations thereof.
5. The device of claim 1 , wherein the protective layer and the organic material are not disposed over a selected portion of the substrate.
6. The device of claim 1 , wherein the substrate is selected from a plastic substrate, a ceramic substrate, a glass substrate, a metal substrate, or combinations thereof.
7. The device of claim 3 , wherein at least a portion of the at least one second electrode overlies the at least one first electrode pixel portion and is separated therefrom by at least a portion of the organic material to form a pixel of the electronic device.
8. The device of claim 1 , wherein the device is selected from a light-emitting diode, a light-emitting diode display, a diode laser, a photodetector, a photoconductive cell, a photoresistor, a photoswitch, a phototransistor, a phototube, and IR detector, a photovoltaic device, a solar cell, a transistor, or a diode.
9. The device of claim 1 , further comprising:
at least one conductive bridge member extending between and electrically connecting the at least one second electrode and the one or more selected portions of the at least one conductive lead.