Company Filing History:
3 out of 39,230 
1 out of 467 
1 out of 1,674 
Years Active: 1996-2013
Title: Masaaki Koizuka: Innovator in Semiconductor Technology
Introduction
Masaaki Koizuka is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of five patents. His work focuses on improving the selectivity in epitaxial growth methods, which are crucial for the advancement of semiconductor devices.
Latest Patents
Koizuka's latest patents include a selective epitaxial growth method using a halogen-containing gate sidewall mask. This innovation enhances the selectivity in epitaxial growth, leading to improved performance in semiconductor devices. The semiconductor device he developed comprises a gate electrode formed over a silicon substrate, with a gate insulating film in between. An insulating layer containing a halogen element is formed over the sides of the gate electrode. This design allows for the formation of a silicon nitride film that contains the halogen element when an SiGe layer is created over the silicon substrate. Consequently, the SiGe layer epitaxially grows over the silicon substrate with high selectivity, suppressing OFF-state leakage currents between the gate electrode and source/drain regions. This advancement establishes a manufacturing process suitable for actual mass production.
Career Highlights
Throughout his career, Koizuka has worked with notable companies such as Fujitsu Corporation and Fujitsu Microelectronics Limited. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and contribute to various innovative projects.
Collaborations
Some of Koizuka's coworkers include Masahiro Fukuda and Yosuke Shimamune. Their collaboration has likely played a role in the development of his patents and advancements in semiconductor technology.
Conclusion
Masaaki Koizuka's contributions to semiconductor technology through his innovative patents have significantly impacted the industry. His work continues to pave the way for advancements in manufacturing processes and device performance.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.