This invention relates to a quick flash memory body including a first source/drain region and a second source/drain region in the base, a first floating grating at the base between the two regions and adjacent to the first region, a second floating grating on the base between the two regions and adjacent to the second region, a light doped area in the base between the two floating gratings and a control grating covering the two gratings, in which, the first floating grating is separated from the second. This memory body can increase the memory density and reduce cost. |