the chip’s design engineer, was assisted by our customer/engineer Masatoshi Shima.Shima had checked the logic and circuit details of the 4004 IC mask artwork. Although he had no IC layout experience, he quickly learned how to compare the circuit schematic against the layout, and was an asset to Faggin during this development of this first microprocessor chip.8,9 Consequently, Faggin recruited Shima from Japan to join Intel to do the detailed circuit and layout of the 8080 chip. In early1974, Shima completed the 8080; it ran 10times faster than the 8008 and was a clear market winner.10–12 A tripling of the clock speed from the better semiconductor process was to be expected, and a doubling of the performance from the added pin count bandwidth—the remaining gain was from improvements in the instruction set and architecture.