Carbon the basis of all organic compounds appears to supplant silicon as the material of choice for future semiconductors. various structures based on the element that sits just above silicon on the Periodic Table can surpass silicon's abilities in thermal performance, frequency range and perhaps even superconductivity.diamond is probably the closest ,And Three dimensional carbon diamond offers 10 times the heat dissipation of silicon, 40 nanometer to 15micron diamond films on silicon wafers. Two-dimensional carbon--3-angstrom-thick monolayers called graphene could dismantle silicon's roadblock to terahertz performance by attaining 10 times the electron mobility of silicon.