Company Filing History:
Years Active: 1981-1982
Title: Sadao Okano: Innovator in Semiconductor Technology
Introduction
Sadao Okano is a prominent inventor based in Hitachi, Japan, known for his significant contributions to semiconductor technology. With a total of three patents to his name, Okano has developed innovative methods that enhance the manufacturing processes of semiconductor devices.
Latest Patents
One of Okano's latest patents is a method of manufacturing a semiconductor device. This method involves preparing a semiconductor substrate that includes at least three semiconductor layers of alternately different conductivity types. In this process, one of the semiconductor layers is divided into multiple independent regions, each equipped with an electrode film. If a defect is found in one of these regions, a substantial portion of the electrode film on the defective region can be trimmed to lower its surface level relative to the others.
Another notable patent is the method of selectively diffusing aluminum into a silicon semiconductor. This method includes forming a diffusion source layer of aluminum on the substrate and creating an oxide film through oxidation. The heating of the substrate allows for the controlled diffusion of aluminum, enabling precise management of the boundary patterns and concentration profiles of the diffused regions.
Career Highlights
Sadao Okano has made remarkable strides in his career, particularly through his work at Hitachi, Ltd. His innovative approaches have not only advanced semiconductor manufacturing but have also contributed to the overall progress in the field of electronics.
Collaborations
Okano has collaborated with notable coworkers, including Takuzo Ogawa and Yasuhiro Mochizuki. Their combined expertise has fostered a collaborative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Sadao Okano's contributions to semiconductor technology through his patents and collaborative efforts highlight his role as a key innovator in the field. His work continues to influence advancements in semiconductor manufacturing processes.
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.