Integrating graphene into the skin depth region of high speed communications signals for a printed circuit board

A method comprising:

• forming a conductive signal transmission structure by:
• depositing graphene to form a graphene layer over a copper substrate;
• and
• depositing copper over the graphene layer to form a conductive signal transmission structure with the graphene layer embedded beneath a surface of the conductive signal transmission structure;
• wherein depositing of graphene followed by depositing of copper is performed a plurality of times to form a plurality of graphene layers with each graphene layer being embedded beneath a corresponding surface of the conductive signal transmission structure, and a depth of each graphene layer below the corresponding surface of the conductive signal transmission structure is located within a skin depth region of the conductive signal transmission structure when a transmission signal applied to the conductive signal transmission structure has a signal speed of at least 112 Gbps;
• and
• coupling the conductive signal transmission structure with a printed circuit.