Production manner null of tagetsutochitsupu for 1 chitsupumaikon

摘要

PURPOSE:To decrease the number of days in production of a target chip, by developing software while verifying a real function by the use of a mono-kit chip, which is composed of the same circuit elements as the target chip, and a mounting mono-kit board. CONSTITUTION:While a set of mono-kits, where each of action cells standardizing input/output actions necessary for composing various one-chip microcomputer target chips is formed in a single semiconductor substrate, is manufactured in advance, mono-kit chips which embody functions required for the target chips are selected from this set and assembled. A mono-kit board is manufactured by performing wiring connections, on the basis of simulation results, between mono kit chips mounted on a printing circuit board. While the functions are verified, software to be written in a ROM is assembled to manufacture a mask layout pattern of the ROM and that of the target chip. Hence, the number of days in production of the target chip can be a month or more decreased.