Wei Chang

Title: Innovations by Inventor Wei Chang

Introduction

Wei Chang is an accomplished inventor based in Foster City, California, known for making significant contributions to semiconductor manufacturing technologies. With a total of six patents, his work focuses on enhancing the efficiency and accuracy of semiconductor inspection and classification processes.

Latest Patents

Wei Chang’s latest innovations include:

1. **Determining critical parameters using a high-dimensional variable selection model** - This patent introduces a high-dimensional variable selection unit that identifies critical parameters from sensor data and measurements taken by semiconductor manufacturing tools. The selection model, which can utilize methods such as elastic net or least angle regression, aims to improve the design and functionality of next-generation semiconductor manufacturing tools.

2. **Automatic defect classification without sampling and feature selection** - This patent describes systems and methods for defect classification in semiconductor processes using a deep-architecture neural network. The innovative system is designed to receive defect images and employs convolutional layers to extract features, ultimately enabling accurate defect classification without the need for manual sampling.

Career Highlights

Wei Chang currently works at Kla Tencor Corporation, a company renowned for its pioneering work in the semiconductor industry. His focus on advancing semiconductor manufacturing tools and processes has made him a valuable asset within the company.

Collaborations

Throughout his career, Wei has collaborated with notable colleagues, including Krishna Rao and Joseph Gutierrez. Their collective efforts in research and development have contributed to significant advancements in semiconductor inspection technology.

Conclusion

As a dedicated inventor, Wei Chang continues to drive innovation within the semiconductor industry. His impressive portfolio of patents reflects his commitment to enhancing manufacturing processes and establishing higher standards in technology. With ongoing collaborations and a focus on cutting-edge research, Wei's contributions will undoubtedly pave the way for future advancements in semiconductor manufacturing.