Bob Roohparvar

Title: Bob Roohparvar: Innovator in Charge Pump Technology

Introduction

Bob Roohparvar is a notable inventor based in San Jose, CA (US). He has made significant contributions to the field of charge pump technology, holding a total of 4 patents. His work primarily focuses on generating high voltages from low initial voltages, which is crucial in applications such as electrically erasable programmable read-only memory (EEPROM) arrays.

Latest Patents

Roohparvar's latest patents include innovative systems for charge pumps. One of his patents describes a low voltage charge pump employing distributed charge boosting. This system generates high voltages from a low initial voltage and includes a charge pump and associated distributed clock generation circuitry. The design features a first phase bootstrapping circuit, an inverter, and a second phase bootstrapping circuit, along with a two-stage charge pump. The two-phase bootstrapping circuits respond to the clock and utilize a distributed bootstrapping scheme to provide clock signals that help overcome increased effective transistor threshold voltages.

Another patent focuses on low voltage charge employing optimized clock amplitudes. This system also generates high voltages from a low initial voltage and includes similar components as the previous patent. The charge pump circuitry is responsive to the power supply voltage and the first and second phase clocks, utilizing native transistors with lower threshold voltages to produce high voltage by alternately adding charge to the power supply voltage.

Career Highlights

Bob Roohparvar is currently employed at Fairchild Semiconductor Corporation, where he continues to innovate in the field of semiconductor technology. His work has been instrumental in advancing charge pump systems, which are essential for various electronic applications.

Collaborations

Throughout his career, Roohparvar has collaborated with notable colleagues, including Karl Rapp and K Z Mahouti. These collaborations have contributed to the development of cutting-edge technologies in the semiconductor industry.

Conclusion

Bob Roohparvar is a distinguished inventor whose work in charge pump technology has led to significant advancements in the field. His innovative patents and contributions to Fairchild Semiconductor Corporation highlight his impact on the industry.