This inventor holds 6 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1989-1996.
Location History:
- Itami, JP (1989 - 1992)
- Hyogo, JP (1990 - 1996)
Company Filing History:
Years Active: 1989-1996
Title: Hisao Masuda: Innovator in Semiconductor Technology
Introduction
Hisao Masuda is a prominent inventor known for his contributions to semiconductor technology. He is based in Hyogo, Japan, and has been awarded a total of 6 patents throughout his career. His work focuses on improving the performance and reliability of semiconductor devices.
Latest Patents
One of Hisao Masuda's latest patents involves a semiconductor device designed with improved immunity to contact and conductor issues. In this innovation, an impurity diffused layer serving as an active region is formed in a predetermined region of the surface of a silicon semiconductor substrate. An underlayer insulating film is applied to protect and stabilize the surface of the semiconductor substrate. The interconnection, which is electrically connected to the impurity diffused layer through a contact hole, is formed on an Al-Si-Sn alloy, an Al-Si-Sb alloy, or alloys with added titanium. This design prevents the occurrence of alloy pits and silicon nodules. Additionally, a protective film is completed over the interconnection and underlayer insulating film, with an aperture in a bonding pad region to ensure electrical connection between the interconnection and the bonding pad. The proportions of silicon and other materials in the alloy are carefully controlled to avoid defects both at the contact hole and throughout the alloy conductor.
Career Highlights
Hisao Masuda has made significant strides in the field of semiconductor technology during his tenure at Mitsubishi Electric Corporation. His innovative approaches have led to advancements that enhance the reliability and efficiency of semiconductor devices.
Collaborations
Hisao Masuda has collaborated with notable colleagues, including Hitoshi Fujimoto and Reiji Tamaki, to further his research and development efforts in semiconductor technology.
Conclusion
Hisao Masuda's contributions to semiconductor technology have made a lasting impact on the industry. His innovative patents and collaborative efforts continue to drive advancements in this critical field.