Chien-Fong Chen

Title: Innovations of Chien-Fong Chen in Ion Implantation Technology

Introduction

Chien-Fong Chen is a notable inventor based in Taichung, Taiwan. He has made significant contributions to the field of semiconductor technology, particularly in ion implantation processes. With a total of 4 patents to his name, Chen's work focuses on enhancing the precision and efficiency of ion implantation techniques.

Latest Patents

One of Chen's latest patents is titled "Dosage Micro Uniformity Measurement in Ion Implantation." This invention involves a design of a test chip that determines the dopant uniformity of ion implantation within an area of several tens of microns. The test chip is specifically adapted to sense variations in dopant concentration caused by the density variations in the ion implantation beam. It can also determine the optimal overlap of adjacent beam scans. The test chips utilize arrays of MOSFETs arranged in a pattern with channel lengths parallel to the ion implantation beam path. This design provides a contiguous set of incremental concentration measurements across the paths of the ion implantation beam scans. The gate threshold voltages are measured and correlated to the active dopant impurity concentration in the channel area. The width of the concentration increment is equal to the channel length, allowing for the determination of the magnitude and long-range uniformity of active dopant impurities over large portions of the wafer or, with high resolution, over smaller areas.

Career Highlights

Chien-Fong Chen is currently employed at Taiwan Semiconductor Manufacturing Company Limited, a leading firm in the semiconductor industry. His work at this company has allowed him to apply his innovative ideas and contribute to advancements in semiconductor manufacturing processes.

Collaborations

Chen has collaborated with several talented individuals in his field, including Yao-Yu Lee and Chia-Chun Cheng. These collaborations have fostered a productive environment for innovation and development in semiconductor technologies.

Conclusion

Chien-Fong Chen's contributions to ion implantation technology exemplify the importance of innovation in the semiconductor industry. His patents reflect a commitment to improving the precision and efficiency of manufacturing processes. Through his work, Chen continues to influence the future of semiconductor technology.