Chin-Chiang Tu

Title: Chin-Chiang Tu: Innovator in Phase Shifting Mask Technology

Introduction

Chin-Chiang Tu is a notable inventor based in Tan-Yeng, Taiwan. He has made significant contributions to the field of semiconductor manufacturing, particularly in the development of advanced photomask technologies. His innovative approach has led to the creation of a patented method that enhances the efficiency and effectiveness of phase shifting masks.

Latest Patents

Chin-Chiang Tu holds a patent for a "Method of forming multiple layer attenuating phase shifting masks." This invention describes a new method of forming a double layer attenuating phase shifting mask. A first pattern is formed in a layer of attenuating phase shifting material, while an alignment pattern is created in a layer of opaque material. A first resist is utilized to form the first pattern, and a pellicle restricts the deposition of a second resist to the alignment region of the mask only. As a result, neither the first resist nor the second resist must withstand dry etching steps. The first resist is removed before the step of forming the first pattern in the attenuating phase shifting material, thereby improving the cleaning process before this step.

Career Highlights

Chin-Chiang Tu is currently employed at Taiwan Semiconductor Manufacturing Company Limited, a leading firm in the semiconductor industry. His work focuses on enhancing photomask technologies, which are crucial for the production of integrated circuits. His innovative methods have contributed to the advancement of semiconductor manufacturing processes.

Collaborations

Chin-Chiang Tu has collaborated with notable colleagues, including Jia-Jing Wang and San-De Tzu. These collaborations have fostered a productive environment for innovation and have led to significant advancements in their field.

Conclusion

Chin-Chiang Tu is a distinguished inventor whose work in phase shifting mask technology has made a lasting impact on the semiconductor industry. His patented methods demonstrate his commitment to innovation and excellence in manufacturing processes.