Kenji Hagiwara

Title: Kenji Hagiwara: Innovator in Semiconductor Encapsulation Technology

Introduction:

Kenji Hagiwara, an accomplished inventor based in Annaka, Japan, has made significant contributions to the field of semiconductor technology. With a total of four patents to his name, Hagiwara specializes in innovations that enhance the performance and reliability of semiconductor devices.

Latest Patents:

Hagiwara's latest patents include a groundbreaking thermosetting epoxy resin sheet for encapsulating semiconductors. This invention features a composition that combines crystalline bisphenol A and/or F type epoxy resins with a non-fluid epoxy resin, a phenol compound with multiple hydroxy groups, inorganic fillers, and a urea-based curing accelerator. The result is an epoxy resin sheet that not only provides excellent flexibility and handleability in its uncured state but also offers outstanding storage stability and formability.

Another notable patent involves a fiber-containing resin substrate that incorporates a thermosetting epoxy resin-impregnated fiber base material. This innovative substrate effectively encapsulates semiconductor device mounting and forming surfaces on a wafer level while minimizing warpage and peeling of the semiconductor devices. The uncured resin layer retains excellent storage stability and handleability prior to curing, making it invaluable in semiconductor manufacturing.

Career Highlights:

Kenji Hagiwara is currently associated with Shin-Etsu Chemical Co., Ltd., where he continues to push the boundaries of innovation in semiconductor materials. His patented technologies play a crucial role in enhancing the efficiency and performance of semiconductor encapsulation processes.

Collaborations:

Throughout his career, Hagiwara has collaborated with notable professionals such as Yusuke Taguchi and Junichi Sawada. These partnerships have fostered a creative environment that has led to groundbreaking advancements in semiconductor technology.

Conclusion:

As an inventor, Kenji Hagiwara exemplifies the spirit of innovation within the semiconductor industry. His patents not only reflect his technical expertise but also significantly contribute to the enhancement of semiconductor reliability and performance, thereby paving the way for future advancements in technology.