Company Filing History:
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2 out of 832,843 Years Active: 2000-2002
Title: Yoshitaka Ohtsu: Innovator in Semiconductor Technology
Introduction
Yoshitaka Ohtsu is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on improving the manufacturing processes of semiconductor devices, particularly BiCMOS transistors.
Latest Patents
Ohtsu's latest patents include innovative methods for semiconductor devices and their manufacturing processes. One of his notable patents describes a structure of a BiCMOS transistor that hinders over-etching of source and drain regions of a MOS transistor. This invention involves forming a polysilicon film that serves as a gate electrode lower layer of a MOS transistor, followed by another polysilicon film that acts as both the upper layer of the gate electrode and the base electrode of a bipolar transistor. The etching process is conducted to form these components simultaneously, utilizing an oxide film as a protective layer to prevent over-etching of the active regions of the MOS transistors.
Another patent focuses on the method of manufacturing a semiconductor device containing a BiCMOS circuit. Similar to his previous work, this invention emphasizes the importance of preventing over-etching during the manufacturing process, ensuring the integrity of the semiconductor device.
Career Highlights
Throughout his career, Yoshitaka Ohtsu has worked with notable companies, including Mitsubishi Electric Corporation. His expertise in semiconductor technology has positioned him as a key figure in the industry, contributing to advancements that enhance device performance and manufacturing efficiency.
Collaborations
Ohtsu has collaborated with esteemed colleagues such as Takayuki Igarashi and Kakutaro Suda. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Yoshitaka Ohtsu's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to impact the industry, paving the way for future advancements in semiconductor manufacturing.