METHOD OF MANUFACTURING A SINGLE CHIP SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE INCLUDING A MASK ROM IN A SHORT TIME

摘要

In a state of a first semiconductor integrated circuit device on which a first semiconductor integrated circuit board including a first mask ROM and a programmable ROM are mounted, an ultimate program determined by using the programmable ROM is stored in a second ROM of a second semiconductor integrated circuit board which is substantially similar in structure to the first semiconductor integrated circuit board, thereby manufacturing a second semiconductor integrated circuit device as an ultimate product.