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DISCO Corporation's Completion of Construction at Kuwabata Plant


Kuwabata Plant (Zone D on the left)

DISCO Corporation, a semiconductor manufacturing equipment manufacturer (Headquarters: Ota-ku, Tokyo; President: Kazuma Sekiya), has completed construction of a new seismically isolated building (Zone D, Building A) at Kuwabata Plant (Kure City, Hiroshima). With the new building added onto the existing building (Zones A, B, C), the total floor space is approximately 1.3 times greater than before.
In addition, with the completion of Zone D, Building A, expansion has been concluded, having been conducted over three phrases since the completion of Zone A in January 2010, in anticipation of greater future semiconductor and electrical components demand.
As a result, a stronger business continuity system and more stable product supply have been realized as measures in preparation for emergency situations.

Purpose of New Building Construction at Kuwabata Plant (Zone D, Building A)

The semiconductor and electronic components markets are expected to continue to expand in the mid-to-long term with the further spread of AI, IoT, and 5G as the next-generation communication standard, the development of self-driving technologies, and changes in lifestyle due to the worldwide spread of COVID-19. Demand for DISCO’s precision processing equipment*1 and tools*2 by device manufacturers, semiconductor manufacturing contractors, electronic components manufacturers, etc. has been increasing accordingly. For these reasons, it was necessary to further strengthen our product supply system. In addition, an even stronger business continuity system was needed that could withstand disasters such as earthquakes and climate change brought on by global warming.

Enhancement of Production System through Expansion

Production floors in the existing building (Zones A to C, Building A) are currently operating at almost full capacity. With the completion of Zone D, the total floor space of Kuwabata Plant is approximately 1.3 greater than before, and we are planning to expand production, mainly for precision processing tools, with this new space. In addition, automated facilities to improve production efficiency will be further developed.

Further Improvements to Water Reserves and BCM*3

Based on our experience in responding to water outages caused by heavy rain in western Japan in July 2018, we made it possible to stockpile industrial water and water for daily use in Zone D. Water tanks filled with industrial water for use in production have been installed underground in Zone D, making it possible to store approximately 1,000 tons of water. Even when water supply is cut off, this amount of water will allow the production of precision processing tools to continue for about 10 days.
In addition, a total of about 560 tons of water for daily use, such as for sewage, etc., is stored in each section of Zone D. Even in an emergency, this amount of water is sufficient for about 10 days of use by employees living in the dormitory on the upper floor of the plant, employees engaging in disaster recovery, and employees who need to temporarily evacuate themselves and their families. Plans have also been made to install water tanks filled with water for daily use in the existing buildings.
Furthermore, drilling for groundwater is currently underway at Kuwabata Plant and Kure Plant in Hiroshima Works.
Along with this, in-house production of water quality regulation facilities that apply pure water circulation system technology is currently in development, and we are working to secure the water resources necessary for business continuity and maintaining the daily lives of employees engaged in production.
As in the existing buildings, a seismically isolated structure has been adopted for Zone D as a measure against earthquake damage.

Recruitment Plans

Along with the establishment of this production system, DISCO will be recruiting new employees. In order to ensure a smooth start for the newly recruited employees, a dormitory for single employees is being constructed on the upper floor of Zone D (Dormitory opening: tentatively August 2021).

Overview of Zone D, Building A, Kuwabata Plant

NameZone D, Building A at Kuwabata Plant, Hiroshima Works, DISCO Corporation
Structure8 stories / seismically isolated structure
Total floor spaceApprox. 67,795.97 m2 (current Zones A to C: 194,436.72 m2)
Total investmentApprox. JPY 14 billion
Construction startSeptember 2, 2019
Construction completionAugust 6, 2021
Operation startDecember 2021 (tentative)

Construction Schedule for Building A, Kuwabata Plant

March 1989Land acquired
December 1989Began operations at Kuwabata Plant. Later, 13 buildings constructed
September 2007Decision to construct Zone A, Building A, Kuwabata Plant. To strengthen BCM, 8-storey seismically isolated structure adopted.
September 2008Started construction on Zone A, Building A
January 2010Completed construction of Zone A, Building A
January 2015Completed construction of Zone B, Building A
January 2019Completed construction of Zone C, Building A
August 2021With completion of Zone D in Building A, expansion completed at Building A. Total floor space of Building A: 262,232.69 m2
Compared to the previous structures (2008) before Zone A construction, floor space expanded by approx. 5 times. Total investment in Building A construction: approx. JPY 49.8 billion.
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