Patent ID: 11916179
Assignee: X DISPLAY COMPANY TECHNOLOGY LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A method of making electrical connections comprising:
providing a substrate comprising substrate electrical contacts disposed on a surface of the substrate, wherein at least one of the substrate electrical contacts has a rounded shape;
providing a device comprising device electrical contacts disposed on a common side of the device; and
printing the device to the substrate such that each of the device electrical contacts is in electrical contact with one of the substrate electrical contacts,
wherein providing the substrate comprising substrate electrical contacts disposed on a surface of the substrate comprises:
providing a substrate;
patterning a polymer on the substrate;
heating the patterned polymer to form one or more rounded shapes of the polymer; and
coating the one or more rounded shapes with a conductive material, wherein each of the at least one of the substrate electrical contacts comprises one of the one or more rounded shapes coated with the conductive material to form a conductive surface layer that is a contact electrical conductor,
wherein at least one of the substrate electrical contacts comprises an electrically conductive polymer.