GRAPHITE SHEET, METHOD FOR PRODUCING SAME, LAMINATED BOARD FOR WIRING, GRAPHITE WIRING MATERIAL, AND METHOD FOR PRODUCING WIRING BOARD

摘要

The first present invention is a graphite sheet having a thickness of not more than 9.6 µm and more than 50 nm and a thermal conductivity along the a-b plane direction at 25°C of 1950 W/mK or more. The second present invention is a graphite sheet having a thickness in a range of less than 9.6 µm and 20 nm or more, an area of 9 mm2 or more, and a carrier mobility along the a-b plane direction at 25°C of 8000 cm2/V ·sec or more.