Location History:
- Ohme, JP (1999 - 2000)
- Ome, JP (1996 - 2006)
Company Filing History:
20 out of 42,508 
9 out of 29,279 
2 out of 832,880 Years Active: 1996-2006
Title: Innovations of Keizo Kawakita in Semiconductor Technology
Introduction
Keizo Kawakita is a notable inventor based in Ome, Japan, recognized for his significant contributions to semiconductor technology. With a remarkable repertoire of 24 patents, Kawakita has played a pivotal role in advancing the complexities of integrated circuit devices.
Latest Patents
Among his latest innovations, Kawakita has developed a semiconductor integrated circuit device featuring a conductive film that contains metal atoms bondable to a halogen element. This invention involves a meticulous manufacturing process whereby a titanium nitride (TiN) film and a tungsten (W) film are deposited on a silicon oxide film, including the interior of a via-hole, using the chemical vapor deposition (CVD) method. Following this, both films are etched back to leave the desired structure within the via-hole, ultimately forming a plug. Additionally, he created a device with a metal insulator semiconductor field effect transistor (MISFET) formed within an active region for the selection of a DRAM memory cell. This configuration boasts an island-like pattern on the principal surface of a semiconductor substrate, optimizing the device's performance and efficiency.
Career Highlights
Throughout his career, Keizo Kawakita has worked with leading technology firms such as Hitachi, Ltd. and Texas Instruments Corporation. His tenure at these companies has allowed him to refine his expertise in semiconductor design and fabrication, while also significantly contributing to the evolution of memory technology.
Collaborations
Kawakita has collaborated with esteemed coworkers including Yoshitaka Tadaki and Hideo Aoki. These partnerships have further propelled innovation and development efforts within the semiconductor industry, contributing to successful patent applications and pioneering technological advancements.
Conclusion
In summary, Keizo Kawakita's dedication to semiconductor innovation is evident through his numerous patents and collaborations. His contributions to the field continue to impact the landscape of integrated circuit technology, making him a prominent figure among inventors in the semiconductor domain.