Location History:
- Warabi, JP (2009 - 2010)
- Tokyo, JP (1987 - 2015)
- Kumamoto, JP (2014 - 2018)
- Kanagawa, JP (2008 - 2023)
Company Filing History:
14 out of 1,033 
12 out of 58,131 
7 out of 2,895 
Years Active: 1987-2025
Title: Hiroyuki Kawashima: Innovator in Semiconductor Technology
Introduction
Hiroyuki Kawashima, based in Tokyo, Japan, is an accomplished inventor with a remarkable portfolio of 36 patents. His work largely focuses on advancements in semiconductor technology, contributing significantly to the field and showcasing his dedication to innovation.
Latest Patents
One of Kawashima's latest patents is a semiconductor device and method for manufacturing the same. This technology pertains to the creation of a semiconductor device where a MIM capacitive element can be formed without process damage. The method involves bonding wiring layers from a first multilayer wiring layer on a first semiconductor substrate to a second multilayer wiring layer on a second semiconductor substrate through wafer bonding. The device features a capacitive element consisting of an upper electrode, lower electrode, and a capacitive insulating film situated between them. This innovation is applicable to semiconductor devices formed by joining two semiconductor substrates.
Another noteworthy patent involves a semiconductor device that includes a first substrate with a first junction portion, and a second substrate having a second junction portion that is joined to the first junction. This design optimizes the layout by electrically coupling the first multilayer wiring layer to the junction portion through an insulating layer. A unique aspect of this design is that the second insulating layer has a lower relative dielectric constant compared to that of the first insulating layer.
Career Highlights
Kawashima has been associated with several prominent companies throughout his career, including Kabushiki Kaisha Topcon and Sony Corporation. His roles within these organizations have involved collaborative efforts that leverage his exceptional skills in semiconductor technology.
Collaborations
During his illustrious career, Kawashima has worked alongside notable colleagues, such as Akio Kobayashi and Masaharu Tokuhara. These collaborations have contributed to the innovative environment in which Kawashima operates, advancing the technology of semiconductor devices.
Conclusion
Hiroyuki Kawashima stands out as a leading figure in semiconductor innovation, with a rich history of patents and professional achievements. His contributions to the field not only reflect his expertise but also promise to have a lasting impact on technology and industry.