Judith Ann Schmidt

Title: Judith Ann Schmidt: Innovator in Semiconductor Cleaning Processes

Introduction

Judith Ann Schmidt is a notable inventor based in St. John, MO (US). She has made significant contributions to the field of semiconductor manufacturing, particularly in the cleaning processes of silicon wafers. Her innovative approach has led to the development of a patented process that enhances the quality and efficiency of semiconductor production.

Latest Patents

Judith holds a patent for a "Post-lapping cleaning process for silicon wafers." This process is designed to clean contaminants from the surface of a semiconductor wafer after it has been lapped. The method involves several steps, including the use of an oxidizing agent to oxidize organic contaminants, immersion in a citric acid bath with directed sonic energy to remove metallic contaminants, and treatment with hydrofluoric acid to eliminate silicon dioxide layers. The final step includes immersion in an alkaline bath with a surfactant, also utilizing sonic energy for effective cleaning.

Career Highlights

Judith Ann Schmidt is associated with Memc Electronic Materials, Inc., where she has applied her expertise in semiconductor materials. Her work has been instrumental in advancing cleaning techniques that are crucial for maintaining the integrity of silicon wafers used in electronic devices.

Collaborations

Throughout her career, Judith has collaborated with talented individuals such as Jing Chai and Henry Frank Erk. These partnerships have contributed to the development of innovative solutions in the semiconductor industry.

Conclusion

Judith Ann Schmidt's contributions to semiconductor cleaning processes exemplify her dedication to innovation in technology. Her patented methods not only improve the quality of silicon wafers but also enhance the overall efficiency of semiconductor manufacturing.