William G Drapak

Title: The Innovations of William G. Drapak

Introduction

William G. Drapak is a notable inventor based in San Jose, CA. He has made significant contributions to the field of semiconductor cleaning technology. With a total of 2 patents, Drapak has developed innovative solutions that enhance the efficiency of wafer cleaning processes.

Latest Patents

Drapak's latest patents include the "Hesitation Free Roller," which is a method and apparatus designed for rotating wafers in a scrubber. This invention allows both sides of a wafer to be scrubbed without slipping or hesitating. The rotating roller imparts rotary motion to a semiconductor wafer during the cleaning process. The roller and wafer contact at their outer edges, and the friction between them causes the wafer to rotate. The roller features an outer edge with a groove that pinches the wafer edge, creating enough friction to prevent slipping when cleaning solutions are applied. This design ensures that the wafer continues to rotate smoothly, even when the roller reaches the flat of the wafer.

Career Highlights

Drapak is currently employed at Ontrak Systems, Inc., where he continues to innovate in the semiconductor industry. His work focuses on improving cleaning processes for wafers, which are critical components in semiconductor manufacturing.

Collaborations

Throughout his career, Drapak has collaborated with talented individuals such as Albert M. Saenz and David L. Thrasher. These collaborations have contributed to the development of advanced technologies in the field.

Conclusion

William G. Drapak's contributions to semiconductor cleaning technology through his innovative patents demonstrate his expertise and commitment to advancing the industry. His work continues to impact the efficiency of wafer cleaning processes, making him a significant figure in the field.