Sang-bong Choi

Title: Innovations by Sang-bong Choi

Introduction

Sang-bong Choi is a notable inventor based in Suwon, South Korea. He has made significant contributions to the field of semiconductor technology, particularly in the area of wafer defect detection and color variation correction. With a total of 6 patents to his name, his work has had a substantial impact on the efficiency and accuracy of semiconductor manufacturing processes.

Latest Patents

Choi's latest patents include a wafer color variation correcting method and a selective wafer defect detecting method. The color variation correcting method addresses the issue of inconsistencies in images of different parts of a wafer. By utilizing the mean and standard deviation of grey level values for the pixels, the method effectively corrects these variations. Additionally, the selective defect detecting method applies different threshold values to metal interconnect patterns and spaces, allowing for the accurate identification of fatal defects without misclassifying non-fatal ones.

Another significant patent involves a method and device for detecting micro-scratches on the surface of a wafer. This innovative approach projects light onto the wafer's surface at a specific angle to avoid interference from underlying layers. The reflected light is converted into an electrical signal, enabling the detection of micro-scratches by analyzing the intensity of the reflected light. This method ensures that defects can be monitored effectively, regardless of the underlying structure.

Career Highlights

Sang-bong Choi is currently employed at Samsung Electronics Co., Ltd., where he continues to develop cutting-edge technologies in semiconductor manufacturing. His expertise in defect detection and color correction has positioned him as a key player in enhancing the quality and reliability of semiconductor products.

Collaborations

Choi has collaborated with notable colleagues such as Sang-mun Chon and Hyung-suk Cho. Their combined efforts have contributed to advancements in semiconductor technology and have fostered a collaborative environment for innovation.

Conclusion

Sang-bong Choi's contributions to the field of semiconductor technology through his innovative patents demonstrate his commitment to improving manufacturing processes. His work not only enhances the quality of semiconductor devices but also sets a standard for future innovations in the industry.