Semiconductor History | Yaskawa Kitakyushu — The Robot Enters the Vacuum
· 1987
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Semiconductor History | Yaskawa Kitakyushu — The Robot Enters the Vacuum
kevin
In 1987, Yaskawa Electric commercialized a vacuum robot for semiconductor manufacturing. The machine put the company’s motion-control knowledge inside one of the fab’s least forgiving environments, where a robot must move a wafer accurately without shedding particles or compromising the chamber vacuum.
Wafer handling looks secondary beside deposition or etching, but every process depends on it. A transfer robot reaches into load locks and process chambers, aligns a fragile disc, and repeats the same motion thousands of times while keeping lubricants, cables, seals, and moving joints from contaminating the product.
The good side was cleaner, faster automation. Robots reduced manual contact, supported clustered process tools, and helped fabs raise throughput as wafer diameter increased and process routes became more complex.
Yaskawa also had useful building blocks already in hand. Its AC servomotors and controllers supplied precise motion, while its industrial-robot business supplied mechanical and safety experience; the semiconductor market turned those capabilities into a specialized clean-automation lineage.
By the late 1990s, the company was selling Class 1 clean robots and developing compact equipment for 300-millimeter wafers. The larger wafer carried more potential chips but was harder to move safely, making reliable automation part of the economic case for the industry’s diameter transition.
The bad side is that handling becomes a common point of failure. A misalignment, seal leak, particle source, software fault, or failed joint can stop several chambers, scrap expensive work in progress, or create defects whose cause is difficult to trace.
Automation also deepens dependence on the tool ecosystem. Customers need spare parts, calibration, software support, and long service lives, while robot suppliers remain exposed to semiconductor capital-spending cycles and the purchasing power of a relatively small group of equipment makers.
The photograph and pin identify Yaskawa’s current Kitakyushu headquarters campus. They anchor the corporate lineage; they do not claim that the first 1987 vacuum robot was assembled in the pictured headquarters building.
Sources: [Yaskawa’s history of its semiconductor and LCD market entry](https://www.yaskawa-global.com/milestones/1980s); [Yaskawa corporate history listing the 1987 vacuum robot](https://www.yaskawa-global.com/wp-content/uploads/2019/08/ar2019_E-1-10.pdf); [1999 annual report on clean robots and semiconductor transport](https://www.yaskawa-global.com/wp-content/uploads/2013/11/ar1999.pdf); [official headquarters address](https://www.yaskawa-global.com/company/profile/network/head-office).
Photo: Soramimi, CC BY-SA 4.0, via Wikimedia Commons.
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