Joseph Buttyan

Title: Joseph Buttyan: Innovator in Superconductor Integrated Circuits

Introduction

Joseph Buttyan is a notable inventor based in Wilkins Township, PA (US). He has made significant contributions to the field of superconductor integrated circuits, holding a total of 2 patents. His work focuses on improving methods and structures that enhance the performance and reliability of superconducting technologies.

Latest Patents

One of Joseph Buttyan's latest patents is titled "Selective silicon dioxide etchant for superconductor integrated circuits." This invention presents an improved method for providing silicon dioxide with openings that expose contact pad areas for connections to superconductors. The process involves depositing a silicon dioxide film on a substrate, applying a resist film, patterning the resist, and reactive ion etching the exposed portions. The innovative aspect of this patent is the use of an etchant gas that consists of 50-95 volume percent nitrogen trifluoride and 5-50 volume percent rare gas, which effectively avoids carbon-containing etchants and minimizes polymer by-products.

Another significant patent by Buttyan is "Refractory resistors with etch stop for superconductor integrated." This patent describes a structure and method for preparing molybdenum resistors in a superconductor integrated circuit. The process includes applying an aluminum film on a patterned superconductor film, followed by a molybdenum film to create an etch-stop interface. This interface protects the patterned superconductor film and enhances processing margins for etch time, utilizing reactive ion etching and plasma oxidization techniques.

Career Highlights

Joseph Buttyan is currently associated with Westinghouse Electric Corporation, where he continues to innovate in the field of superconductors. His work has been instrumental in advancing technologies that are critical for various applications in electronics and energy.

Collaborations

Throughout his career, Joseph has collaborated with notable colleagues, including John Xavier Przybysz and Richard D Blaugher. These collaborations have contributed to the development of cutting-edge technologies in the field of superconductors.

Conclusion

Joseph Buttyan's contributions to the field of superconductor integrated circuits through his innovative patents highlight his role as a key inventor in this specialized area. His work continues to influence advancements in technology and engineering.