This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1976-1989.
Location History:
- Kokubunji, JA (1976)
- Tamamura, JP (1987)
- Takasaki, JP (1989)
Company Filing History:
Years Active: 1976-1989
Title: Kazuo Hoya: Innovator in Semiconductor Technology
Introduction
Kazuo Hoya is a prominent inventor based in Tamamura, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on innovative methods for fabricating semiconductor devices and enhancing their performance.
Latest Patents
Hoya's latest patents include a method of fabricating semiconductor devices that incorporate vertical elements and control elements. This method involves etching a well in a semiconductor substrate of a first conductivity type, followed by the epitaxial growth of a first layer with a second conductivity type. The process continues with etching, grinding, or polishing to fill the well, and the growth of a second epitaxial layer of the first conductivity type. Additionally, an impurity-doped layer for isolation is formed, leading to the creation of elements with varying structures and current capabilities.
Another notable patent is for a pressure sensor featuring a diaphragm formed in a semiconductor body. This diaphragm includes pressure sensing semiconductor strips that are strategically connected to enhance sensitivity and precision. The design ensures that the electrode lead-out regions maintain low resistance, allowing for effective contact with the semiconductor body outside the diaphragm.
Career Highlights
Kazuo Hoya is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to push the boundaries of semiconductor technology, contributing to advancements that have practical applications in various industries.
Collaborations
Hoya has collaborated with notable coworkers, including Isao Shimizu and Masatoshi Kimura. Their combined expertise has fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.
Conclusion
Kazuo Hoya's contributions to semiconductor technology exemplify the spirit of innovation. His patents reflect a deep understanding of the complexities involved in semiconductor fabrication and sensor technology. Through his work at Hitachi, he continues to influence the field and inspire future advancements.