▎ 摘　　要

NOVELTY - Preparation of graphite thermally conductive sheet involves performing array punching on a graphite sheet to obtain a graphite sheet with array holes, subjecting to plasma treatment, performing chemical grafting on the graphite sheet with a vinyl-containing silane coupling agent to obtain graphite sheet surface coated with a coupling agent layer, and depositing the outer surface of the graphite sheet having the coupling agent layer with a polymer layer by chemical vapor deposition. USE - Preparation of graphite thermally conductive sheet used in semiconductor radiating device (all claimed) and electronic product such as mobile phone, notebook computer, medical device and LED screen. ADVANTAGE - The prepared graphite thermally conductive sheet has improved radiating effect, uniform heat and excellent structural stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for semiconductor radiating device, which comprises a packaged semiconductor chip, a radiator and the graphite thermally conductive sheet sandwiched between the packaged semiconductor chip and the radiator.