Location History:
- Amagasaki, JP (1983 - 1984)
- Ibaraki, JP (1984)
- Namekata, JP (1984)
- Chiba, JP (1984)
- Osaka, JP (1999)
- Sanda, JP (1999 - 2001)
Company Filing History:
6 out of 929 
1 out of 24 
1 out of 3 Years Active: 1983-2001
Title: Inventor Toshihiko Kubo: A Pioneer in Connector Structures
Introduction
Toshihiko Kubo, an accomplished inventor based in Sanda, Japan, has made significant contributions to the field of semiconductor packaging. With a total of 8 patents to his name, Kubo's innovations have paved the way for enhanced packaging density and reliability in electronic devices.
Latest Patents
Kubo's recent patents showcase his expertise in connector structure design. One notable patent is a "Method of forming connector structure for a ball-grid array." This innovative connector structure enables reduced ball pitch, thereby increasing packaging density. It features a plastic substrate with a hollow through-hole and an electrode that forms an electrode pad on both sides of the substrate. A metallic ball is affixed to the electrode pad at the through-hole, either directly or through solder. The connector structure is formed by sealing the open end of the through-hole or by employing a pressure-control mechanism.
Another significant patent by Kubo is focused on the "Semiconductor package and semiconductor device." This invention introduces a metal bump positioned between a metal pad on a plate-like package body and interconnecting solder. The metal bump has a higher melting point than the interconnecting solder, which enhances fatigue resistance against temperature fluctuations and improves reliability around the interconnecting area.
Career Highlights
Throughout his career, Kubo has worked with esteemed companies such as Sumitomo Metal Industries, Inc. and Sumitomo Metal Electronics Devices, Inc. His tenure at these organizations has allowed him to refine his skills and bring innovative solutions to the semiconductor industry.
Collaborations
Kubo's work has been enriched by collaborations with talented individuals such as Minoru Ichidate and Masahide Umino. Together, they have contributed to advancements in connector technologies and semiconductor packaging methods, pushing the boundaries of what is possible in the electronics field.
Conclusion
Toshihiko Kubo stands out as a brilliant inventor whose contributions have significantly influenced semiconductor technology. His patents not only enhance the efficiency and reliability of electronic packages but also showcase his innovative spirit. As technology continues to evolve, Kubo's work will undoubtedly inspire future advancements in the industry.
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.