Semiconductor History | Sharp Fukuyama — Game Demand Builds an Automated LSI Plant
· 1985
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Semiconductor History | Sharp Fukuyama — Game Demand Builds an Automated LSI Plant
kevin
Sharp’s official centennial history says a home game machine introduced by an unnamed toy manufacturer in 1983 became a major hit and drove a surge in sales of the mask-ROM chips used by it. To supply that demand, Sharp constructed the Fukuyama Plant in 1985 as a highly automated semiconductor factory using robots throughout production.
A mask ROM stores its program by fixing the pattern during chip fabrication. Once a game is finished and volumes are enormous, that makes each copy compact, fast, and cheap; the economics fit cartridges, where the silicon traveled with every title rather than remaining only inside the console.
The good was customer-led scale. Sharp converted expertise built through calculators, MOS LSIs, optoelectronics, and displays into mass production for a new entertainment market, then added Fukuyama Plant No. 2 in 1989 with finer processing technology. Automation turned a sudden consumer hit into durable manufacturing capability that later supported memory, integrated circuits, and optoelectronic devices.
The bad was rigidity. A mask error or late software change could require new tooling, unsold cartridges locked code into inventory, and demand could collapse when a title or console generation faded; expensive cleanrooms built for a boom still carried depreciation, water, chemical, and contamination-control burdens afterward. Sharp’s later reorganizations, including the 2019 semiconductor spin-off, show how a captive component advantage can become a business that must repeatedly find new owners and markets.
The pin identifies the verified Fukuyama site that Sharp says it built for this game-driven expansion. The cover is a later 1989 Game Boy board with visible Sharp memory devices and a Nintendo-marked CPU; it proves Sharp components reached game hardware, but it is not the unnamed 1983 machine, a cartridge mask ROM, or the 1985 production line.
Sources: Sharp’s 100-Year History, corporate chronology, Fukuyama map and factory reports; Nintendo corporate history and Game Boy archive.
Photo: “Nintendo Game Boy DMG-01 — board with card slot,” Raimond Spekking, CC BY-SA 4.0. https://commons.wikimedia.org/wiki/File:Nintendo_Game_Boy_DMG-01_-_board_with_card_slot-9880.jpg
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