▎ 摘　　要

NOVELTY - The dry electrode has a graphene-PDMS flexible conductive substrate (1) whose top surface is designed as a tip array structure (2). A parylene film (3) is deposited on the tip array structure. A metal seed layer (4) is sputtered on the parylene film. A metal layer (5) is sputtered on the metal seed layer. The bottom surface of the graphene-PDMS flexible conductive substrate is coated with a conductive silver paste layer (6). USE - Tip array structure based graphene- poly-di-methyl-siloxane (PDMS) flexible substrate electrocardiographic dry electrode. ADVANTAGE - The manufacturing process steps are simplified. The manufacturing cost is reduced. The materials used in the preparation including conductive silver paste, PDMS, graphene, parylene film, and sputtered metal titanium and gold perform well in biocompatibility, so that bacteria is effectively inhibited and skin irritation is reduced. The needle tip array structure is provided with large contact area and the direct contact with the skin is passed through the stratum corneum, so that the skin-electrode contact resistance is effectively reduced and stability is achieved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene-PDMS flexible substrate electrocardiographic dry electrode based on tip array structure. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the electrocardiographic dry electrode. Graphene-PDMS flexible conductive substrate (1) Tip array structure (2) Parylene film (3) Metal seed layer (4) Metal layer (5) Conductive silver paste layer (6)