Terumi Tsukahara

Title: Terumi Tsukahara: Innovator in Encapsulant Technology

Introduction

Terumi Tsukahara is a prominent inventor based in Ibaraki-ken, Japan. She has made significant contributions to the field of encapsulant technology, particularly in the development of materials used in electronic devices. With a total of 2 patents, her work has garnered attention for its innovative approaches to enhancing the performance and reliability of electronic components.

Latest Patents

Tsukahara's latest patents include an encapsulant composition and an electronic device. The encapsulant composition comprises an epoxy resin, a curing agent, an inorganic filler, an adduct of triphenylphosphine with benzoquinone, and a hydrous bismuth nitrate oxide. The inorganic filler is mixed in an amount of 70% by volume to 85% by volume based on the total weight of the encapsulant composition. The hydrous bismuth nitrate oxide is mixed in an amount of 2.5 parts by weight to 20 parts by weight based on 100 parts by weight of the epoxy resin. The electronic device features an encapsulating member that comprises a cured product of this encapsulant composition. Another notable patent involves an LOC structure semiconductor device that exhibits good solder heat resistance without electrical characteristic failures due to damages to the passivation film and the diffusion layer. This is achieved by encapsulating an LOC structure semiconductor chip with an encapsulating material that includes an epoxy resin, a curing agent, a curing promoter, and an inorganic filler.

Career Highlights

Terumi Tsukahara is currently employed at Hitachi Chemical Company, Ltd., where she continues to innovate in the field of encapsulant technology. Her work has been instrumental in advancing the reliability and efficiency of electronic devices, making her a valuable asset to her company and the industry.

Collaborations

Throughout her career, Tsukahara has collaborated with notable colleagues, including Tatsuo Kawata and Hiroyuki Sakai. These collaborations have contributed to the development of cutting-edge technologies in encapsulant materials.

Conclusion

Terumi Tsukahara's contributions to encapsulant technology have positioned her as a leading inventor in her field. Her innovative patents and ongoing work at Hitachi Chemical Company, Ltd. continue to influence the development of reliable electronic devices.