▎ 摘　　要

NOVELTY - The method involves forming (S10) graphene on a metallic board. The device structure is produced (S30) using the polycrystalline silicon which is formed on the graphene. The final substrate is adhered (S40) on a device structure and metallic board is separated (S50). USE - Manufacturing method of silicon semiconductor element for organic LED (all claimed) used in mobile communication terminal, car navigation system, personal digital assistant and camcorder. ADVANTAGE - High quality silicon semiconductor element is obtained efficiently. The manufacture of the organic LED is performed efficiently. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) silicon semiconductor element; and (2) organic LED. DESCRIPTION OF DRAWING(S) - The drawing shows a (Drawing includes non-English language text) Step for forming graphene on silicon board (S10) Step for crystallizing amorphous silicon (S20) Step for producing device structure (S30) Step for adhering final substrate (S40) Step for separating metallic board (S50)