Sony Device Technology (Thailand)



Sony Semiconductor Solutions Group environmental policy

Environmental Policy

We will comply with regulations and follow the Sony Group Environmental Vision.To reduce environmental impact through our activities, we will aim at the industry-leading environmental performance, and to create the profitable era from the environmental contribution.

April 1st, 2022
Sony Semiconductor Solutions Corporation
Representative Director, president and CEO
Terushi Shimizu

The Sony Semiconductor Solutions Group will comply with regulations and follow the Sony Group Environmental Vision.To reduce environmental impact through our activities, we will aim at the industry-leading environmental performance, and to create the profitable era from the environmental contribution.
We familiarize employees with this environmental policy and disclose related information.

Sony Semiconductor Solutions Group listed below acquired ISO14001.

・Sony Semiconductor Solutions Corporation
・Sony Semiconductor Manufacturing Corporation
・Sony Semiconductor Israel Ltd.
・Sony Device Technology （Thailand） Co., Ltd.
・Sony Precision Devices （Huizhou） Co., Ltd.

Site environmental initiatives

Sony Semiconductor Solutions Group are aimed at reducing environmental impact reduction activities such as energy conservation and other activities at relevant sites, in line with Green Management 2025 – a set of environmental mid-term targets to achieve by fiscal 2025. Furthermore, we develop the regional activities focusing on contribution to the environment in response to local needs (including the activities for environmental conservation inside the sites).

Reducing greenhouse gas emissions

We are making efforts to reduce greenhouse gas emissions such as carbon dioxide (CO2) generated due to use of energy and perfluorocarbon (PFC) used in a manufacturing process. We also promote cyclic use of energy such as installation of high efficiency apparatus and recycling of exhaust heat generated by air-conditioning equipment in semiconductor clean rooms. We implement measures to reduce greenhouse gas emissions such as PFC by installing processing equipment

Reducing the Energy Consumption in Maintaining a Clean Room Environment

The clean rooms where semiconductors are produced need a great deal of energy in order to maintain a stable level of heat, humidity, and cleanliness throughout the year. To address this, Sony Semiconductor Manufacturing Corporation, the Fab 5 facility in Nagasaki Technology Center has installed an AI-enabled system that has a new operation control system that calculates the minimal necessary caloric power to operate the chiller. Besides, installed a system that recover and reuse waste heat from production machines and other equipment to minimize the use of boilers. These systems reduce the energy consumption by about 30% compared to conventional methods.
Since 2015 these efforts by Sony Semiconductor Manufacturing Corporation have been recognized by the Ministry of Economy, Trade and Industry with the highest rating (S class) in corporate energy conservation excellence.

Reducing energy loss with low-resistance pipes

Energy loss in pipes was eliminated by designing gradual slopes in the on-site piping to conserve the inertia of fluid flowing inside.

Saving energy by combining recovered waste heat with a two-fluid humidification system

Maintaining quality in cleanrooms used in semiconductor production requires strict control of temperature and humidity, and much energy is consumed by air conditioning systems. To reuse waste heat (extra energy) generated by production equipment as energy for this system, Nagasaki Technology Center installed waste heat recovery equipment. A two-fluid humidification system was also installed, which releases mist (from water and compressed air) to humidify and cool the room. These measures save considerable energy in cleanrooms.

Installing solar power systems

Sony Semiconductor Manufacturing Corporation installed solar power equipment (Hereinafter, equipment) with a generation capacity of approximately 1.1 MW on the roof of Kumamoto Technology Center Building No.1 with the aim of reducing environmental impact. The equipment began operating since March 2019. In March 2022, we installed a 1.8 MW facility on the roof of Building No.2, which has a generating capacity approximately 1.6 times that of Building No.1, and started operation. The equipment in Buildings No.1 and No.2 together generate approximately 3,300 MWh of electricity annually (equivalent to the annual power consumption of approximately 700 households), which is used to power the office building and to air-condition the clean room. In the future, considering introducing it to Nagasaki Technology Center and Oita Technology Center.

Promoting Cool Biz and Warm Biz

Cool Biz and Warm Biz attire is worn at all technology centers in summer and winter months (June–September and December–March). Air conditioners are set at the optimum temperature. Moreover, all employees do their part to reduce greenhouse gas emissions, even through “simple measures” such as turning off unneeded lights or idle computers, planning days without overtime, or using an automotive start-stop system when commuting.

Measures for emissions of perfluorocarbons (PFC) and other greenhouse gases

Mainly PFCs – including CF4, C2F6, CHF3, SF6, and NF3 – are used in our manufacturing processes. To reduce the amount of PFCs released into the atmosphere, we use less in these processes, choose substances with lower global warming potential, and install abatement equipment in the stage before release. For reference, PFCs represent about 10% of all greenhouse gases emitted by the Group, including CO2 emission from energy consumption.

Reducing waste

Four perspectives are taken to reduce waste: refuse (by avoiding wasteful purchases), reduce (by generating less waste), recycle (by making used things useful again), and reuse (by using things repeatedly). Sony Semiconductor Manufacturing classifies waste into many categories, and with assistance from waste processing contractors, the company’s rate of reuse and recycling (including thermal recycling) has surpassed 99% since fiscal 2001.
Meanwhile, we also pursue efficient resource utilization to reduce waste such as sludge from chemical treatment and waste liquid from manufacturing.

Contact Us



For inquiries about Sony Semiconductor Solutions Group and products / solutions, specifications, quotation / purchase requests, etc., please contact us using the Inquiry form from the button below.



Contact Us




back to the top