W R Trutna

Title: W R Trutna: Innovator in Photolithography Technology

Introduction

W R Trutna is a notable inventor based in Atherton, California, recognized for his contributions to the field of integrated circuit manufacturing. He holds a patent that significantly enhances the precision of projection printers used in photolithography.

Latest Patents

Trutna's most recent patent is titled "Method for focusing projection printer." This invention presents an improved method for automatically focusing a projection step and repeat photolithography printer. The method utilizes an optical signal to achieve precise focusing by reflecting the signal off a photoresist layer on a wafer's surface. The reflected optical signal is then converted into an electronic signal, which is employed to focus the printer accurately. A key feature of this invention is the addition of a dye that absorbs light at the wavelength of the optical signal, which enhances the quality of the reflected signal and reduces focusing errors.

Career Highlights

W R Trutna has made significant strides in his career, particularly through his work at Hewlett-Packard Company. His innovative approach to photolithography has contributed to advancements in the manufacturing of integrated circuits, showcasing his expertise in the field.

Collaborations

Throughout his career, Trutna has collaborated with notable colleagues, including Atul Goel and Keith G Bartlett. These collaborations have likely fostered an environment of innovation and creativity, leading to advancements in technology.

Conclusion

W R Trutna's contributions to the field of photolithography through his patented method for focusing projection printers exemplify his role as an innovator in integrated circuit manufacturing. His work continues to influence the industry and improve manufacturing processes.