▎ 摘　　要

NOVELTY - A expected structure is formed on a silicon carbide substrate by semiconductor method. The silicon carbide substrate is high-temperature thermal-decomposed in carbon-rich environment, to obtain suspended graphene. USE - Preparation of suspended graphene used for preparing nanoporous sensor (claimed). ADVANTAGE - The method enables environmentally-friendly, mechanized and automated preparation of suspended graphene, by simple method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of nanoporous sensor.