Location History:
- Tokyo, JP (1999 - 2005)
- Miyazaki, JP (2008)
Company Filing History:
Years Active: 1999-2008
Title: The Innovations of Etsuo Yamada: A Trailblazer in Semiconductor Manufacturing
Introduction
Etsuo Yamada is an accomplished inventor based in Tokyo, Japan, recognized for his significant contributions to the field of semiconductor manufacturing. With a portfolio of 11 patents, Yamada continues to innovate and push the boundaries of technology.
Latest Patents
Yamada's latest inventions showcase his expertise and innovative spirit. One of his notable patents is a method of manufacturing a semiconductor device using a matrix frame. This process involves providing a matrix frame that includes multiple die pads, onto which semiconductor chips are mounted and sealed within blocks. After sealing with resin, inner leads are punched and the block is diced into individual devices, ensuring efficiency and precision in semiconductor production.
Another important innovation by Yamada is the method for creating a lead-on-chip device. This device is characterized by a plastic sealing layer whose thickness is carefully regulated to prevent warping and subsequent cracking of the semiconductor chip. By incorporating grooves into the semiconductor chip, the invention enhances the thickness of the lower portion of the plastic layer, effectively mitigating crack formation.
Career Highlights
Yamada's work at Oki Electric Industry Co., Ltd. has positioned him as a key player in the semiconductor industry. His dedication to research and development has resulted in numerous advancements that enhance the performance and reliability of semiconductor devices.
Collaborations
Throughout his career, Yamada has collaborated with talented coworkers, including Yasushi Shiraishi and Shinji Ohuchi. These partnerships have contributed to the success of projects and innovations within the company, fostering an environment of creativity and technological advancement.
Conclusion
Etsuo Yamada's contributions to the semiconductor industry are profound and impactful. With a strong emphasis on innovation and collaboration, Yamada continues to lead the way in developing new methods and technologies that enhance the efficiency and functionality of semiconductor devices. His work not only showcases his skills as an inventor but also significantly influences the future of technology.