▎ 摘　　要

NOVELTY - The layer has a graphite alkene material formed as loose and porous material. The graphite alkene material is provided with a micro-structure array. A polymer elastomer covers each hole and penetrates the graphene material from an inner side to outer side. A micro structure part of the micro structure array is formed as a conical or a truncated conical or a spherical structure or a tapered or a truncated cone. Porosity of the porous is measured about 25 %-65 %. The thickness of the layer is measured about 5-200 micro meter. The graphite alkene material is formed as a laser induced graphene. USE - Pressure sensitive layer for a piezoresistive sensor (claimed). ADVANTAGE - The layer utilizes a resistance value sensor so as to sense external pressure caused by changes in electric signal in an effective manner, and has high sensitivity, low cost, high flexibility, easy operation and easy array and miniaturization. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a piezoresistive pressure sensor. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of a pressure sensitive layer.