Location History:
- Tokyo, JP (1997 - 2002)
- Hyogo, JP (1994 - 2005)
Company Filing History:
14 out of 3,781 
10 out of 21,351 
Years Active: 1994-2005
Title: Junko Matsumoto: Innovation in Semiconductor Technology
Introduction
Junko Matsumoto, a distinguished inventor located in Hyogo, Japan, has made significant contributions to the field of semiconductor technology. With an impressive portfolio of 24 patents, Matsumoto has demonstrated a keen ability to innovate in various aspects of semiconductor devices and their functionalities.
Latest Patents
Among Matsumoto's latest patents is a semiconductor device designed for stable internal voltage generation. This innovative invention outlines a mechanism for generating various internal voltages—high voltage, intermediate voltage, and internal power supply voltage—based on a power supply level setting signal. The device features a unique process where, when an external power supply voltage is low, a current drive transistor and an auxiliary drive transistor are enabled, allowing the transmission of external power supply voltage to the internal supply line. In contrast, when the external voltage is sufficiently high, a comparing circuit activates to down-convert the voltage and generate a peripheral power supply voltage on the internal line.
Another notable patent involves a semiconductor circuit device that accommodates multiple packaging types. This design allows data pad regions on a rectangular semiconductor memory chip to be arranged in four separate sections. By selectively utilizing data pads in accordance with a word structure, this invention enables the semiconductor memory chip to be effectively assembled in either a single-chip package or a multi-chip package.
Career Highlights
Throughout his career, Junko Matsumoto has worked with prominent companies in the semiconductor industry, including Renesas Technology Corporation and Mitsubishi Electric Corporation. His tenure at these leading organizations has provided him with invaluable experience and insights into semiconductor innovation and development.
Collaborations
Matsumoto has collaborated with various professionals in the industry, including notable coworkers Tadaaki Yamauchi and Takeo Okamoto. These collaborations have likely contributed to the advancement of his innovative ideas and the successful realization of his patents.
Conclusion
Junko Matsumoto’s contributions to semiconductor technology exemplify the spirit of innovation and dedication to advancing capabilities in the field. With a remarkable record of patents and significant industry experience, Matsumoto continues to inspire future developments in semiconductor devices and technology.