▎ 摘　　要

NOVELTY - The memory has a flash memory die array (1), pins (2), graphene heating elements (3) and electrode guide bars (4). The graphene heating element is closely attached to the surface of the flash memory die array. The electrode guide bar is connected with the graphene heating element and connected with the pin. The graphene heating element is a graphene film, and the number of layers of the graphene film is between 1-10. The graphene heating element is in the shape of a strip of unequal width. The width at the widest position of the strip is twice or more than the width at the narrowest position. The electrode guide bar is in the shape of a strip of unequal width. The width at the widest position of the strip is twice or more than the width at the narrowest position. USE - Flash memory. ADVANTAGE - The graphene heating elements can be attached to the existing flash memory die array, so that the temperature of the graphene heating elements can be instantly increased when data needs to be destroyed, thus destroying the flash memory crystals. The storage function of the granule makes the data unreadable and not recoverable. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a flash memory. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a flash memory. Flash memory die array (1) Pin (2) Graphene heating element (3) Electrode guide bar (4)