ESG Topics

Realizing more environmentally friendly
manufacturing methods

In the electronics field, we propose environmentally friendly manufacturing methods utilizing our strengths in polymer compounding and fine particle dispersion technologies. TATSUTA supports the evolution of electronics and contributes to reducing the environmental impact of its customers’ manufacturing processes.

Based on the EU WEEE and RoHS Directives, lead-free packaging has become a common practice. While leaded solder was replaced by alternative lead-free solder, technological innovations are creating demands for finer-pitch packaging, low-temperature packaging and heat-resistant packaging. High expectations are placed on conductive adhesive technology as an environmentally friendly technology to enable lead-free, low-temperature processing using no flux. In manufacturing electronic circuits and devices in printed electronics, vacuum processes such as sputtering and wet processes such as etching and plating have been commonly used. However, the use of plating, for example, has a high environmental impact including CO2 emissions from consuming a large amount of electricity, chemicals, and a large volume of water. Thus, replacing these wet methods with “dry printing methods” is expected to further improve productivity while saving energy and resources.

Photo of functional paste

Our functional paste lineup, consisting primarily of conductive pastes, includes a wide variety of products which are used in many applications such as the high-density packaging, build-up, and high-reliability of PCBs. We are also strengthening our collaboration with startup companies and entering technology areas that use nano-sized particles. The Radio Frequency Identification (RFID)* market is our target area. RFID products are made by processing aluminum foil using steps from exposure to etching, which cause a large environmental impact, using PET as a base material. Making these with ordinary paper, such as copy paper, will reduce both environmental impact and costs. Since paper is a naturally derived material unlike PET, which is a chemical product, this can further reduce environmental impact.

  1. RFID is an automatic identification technology that uses radio waves to read and write information on IC tags without contact.
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