Kay Jin Lee

Title: Innovations by Kay Jin Lee in Wafer Marking Technology

Introduction

Kay Jin Lee is an accomplished inventor based in Singapore, known for his contributions to semiconductor manufacturing. His innovative approach to wafer marking has garnered attention in the industry, particularly for its potential to enhance the efficiency and accuracy of multi-layer metal processes.

Latest Patents

One of Kay Jin Lee's notable patents is titled "Method of wafer marking for multi-layer metal processes." This patent describes a groundbreaking method for forming a laser mark on a silicon wafer without causing damage to its surface. The process involves the formation of a pad oxide layer on the wafer, followed by the deposition of a nitride layer. A first trench is then laser cut through both layers into the silicon wafer. The trench is subsequently etched to a second depth, utilizing the nitride layer as a hard mask, resulting in an identification mark that is both precise and non-intrusive.

Career Highlights

Kay Jin Lee has made significant strides in his career at Chartered Semiconductor Manufacturing Ltd, where he has been instrumental in advancing semiconductor technologies. His work has not only contributed to the company's reputation but has also set new standards in the industry.

Collaborations

Kay Jin Lee collaborates with talented professionals, including his coworker Ching Thiam Chung, who brings valuable insights and expertise to their projects.

Conclusion

Kay Jin Lee's innovative methods in wafer marking represent a significant advancement in semiconductor technology. His contributions continue to influence the industry, showcasing the importance of innovation in enhancing manufacturing processes.