Company Filing History:
Years Active: 1985-1986
Title: The Innovations of William J Mruk
Introduction
William J Mruk is a notable inventor based in Chantilly, VA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of substrate voltage generators. With a total of 2 patents, Mruk's work has advanced the capabilities of integrated circuits.
Latest Patents
Mruk's latest patents include a charge pumping circuit that introduces a substrate voltage generator capable of providing over 1.5 times as much current for a given size circuit compared to prior art. This innovation utilizes a high capacitance per unit area charge pumping capacitor with a triple plate structure. Additionally, it incorporates a dual-use technique for the source diffusion of the current sinking device, which also serves as a guard ring around the charge pumping circuit. These features enable the generator to supply substantial current for maintaining substrate voltage in large dimension VLSI chips, which often experience significant diffusion leakage currents. Another notable patent is a precision regulation substrate voltage generator circuit that employs frequency modulation to control the oscillator frequency driving the substrate charge pump, allowing for more precise substrate voltage regulation in integrated circuits.
Career Highlights
Mruk has had a distinguished career at International Business Machines Corporation (IBM), where he has been instrumental in various innovative projects. His expertise in electrical engineering has led to advancements that benefit the industry and enhance the performance of integrated circuits.
Collaborations
Throughout his career, Mruk has collaborated with esteemed colleagues, including John Stanley Bialas, Jr. and Richard J Daniels. These partnerships have fostered a creative environment that has contributed to the success of their projects.
Conclusion
William J Mruk's contributions to the field of electrical engineering, particularly through his innovative patents, have made a lasting impact on the industry. His work continues to influence the development of advanced technologies in integrated circuits.