John E Turner

Title: Innovations of John E. Turner

Introduction

John E. Turner is a notable inventor based in Woodside, CA (US). He has made significant contributions to the field of technology, particularly in the area of print head design and integrated circuit interconnects. With a total of 5 patents to his name, Turner has demonstrated a commitment to innovation and excellence in his work.

Latest Patents

One of Turner's latest patents is for a thin-film print head designed for thermal ink-jet printers. This innovative print head includes at least one MOSTFT transistor, a resistor, and a conductive line connecting the two. The design features external interconnects that link the internal circuitry of the print head to external driver circuitry. The print head is strategically placed adjacent to an ink barrier and an orifice plate, which together define the firing chamber. Each firing chamber is equipped with a thin-film resistor that is selectively driven by a transistor, allowing for efficient ink vaporization and ejection. The use of MOSTFT transistors enables the print head to be manufactured on less expensive substrates, enhancing its cost-effectiveness.

Another significant patent involves the nitridation of titanium-tungsten interconnects for submicron integrated circuits. This method addresses the oxidation instability of titanium-tungsten by exposing the interconnect to a nitrogen-rich ambient at elevated temperatures. This process allows for the formation of local interconnects while preventing oxidation that could adversely affect the resistivity of the material.

Career Highlights

John E. Turner has had a distinguished career at Hewlett-Packard Company, where he has been instrumental in developing cutting-edge technologies. His work has not only advanced the capabilities of thermal ink-jet printers but has also contributed to the field of integrated circuits.

Collaborations

Throughout his career, Turner has collaborated with talented individuals such as Clifford I. Drowley and Jung Lin. These partnerships have fostered innovation and have led to the successful development of various technologies.

Conclusion

John E. Turner is a prominent inventor whose work has significantly impacted the technology landscape. His innovative patents and contributions to Hewlett-Packard Company highlight his dedication to advancing technology.