David James Rennie

Title: David James Rennie: Innovator in Memory Technology

Introduction

David James Rennie is a notable inventor based in Etobicoke, Canada. He has made significant contributions to the field of memory technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and performance of memory systems.

Latest Patents

One of Rennie's latest patents is the SRAM sense amplifier. This innovative sense amplifier is designed for use in memory arrays with multiple memory cells. It provides low power dissipation, rapid sensing, and high yield sensing operation. The amplifier utilizes differential bitlines from an SRAM column, coupled to the sense amplifier through the sources of two PMOS transistors. A CMOS latching element, consisting of two NMOS transistors and the aforementioned PMOS transistors, amplifies any voltage differences between the differential bitlines. This design ensures that the output nodes of the sense amplifier reach a full swing value. The latching element is controlled by two additional PMOS transistors, which prevent the latching operation until the sense amplifier is activated. Furthermore, equalization transistors maintain the latch in a metastable state until it is enabled, allowing for efficient power consumption once resolved.

Another significant invention by Rennie is the programmable high-resolution timing jitter injector. This device features a first circuit with rows and columns of delay cells that generate delayed signals based on an input signal. The delayed signals are selectable and vary in delay relative to the input signal. The device is programmable using a delay code, enabling the selection of different delayed signals for use as timing signals in a second circuit. This innovation can also utilize the delayed signals to evaluate clock and data recovery circuits, with the potential for integration on a single die.

Career Highlights

David James Rennie has worked with prominent companies, including Intel Corporation. His experience in the industry has allowed him to develop cutting-edge technologies that enhance memory performance and efficiency.

Collaborations

Throughout his career, Rennie has collaborated with talented individuals such as Fabrice Paillet and Tanay Karnik. These collaborations have contributed to the advancement of his innovative projects.

Conclusion

David James Rennie's contributions to memory technology through his patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence advancements in memory systems and technology.