Yan Guan

Title: Yan Guan - Innovator in Tungsten Deposition Technologies

Introduction

Yan Guan is a notable inventor based in Cupertino, CA (US), recognized for his contributions to semiconductor processing technologies. He holds 2 patents that focus on methods for depositing tungsten, a critical material in the semiconductor industry. His innovative approaches aim to enhance the performance and efficiency of tungsten layers used in various applications.

Latest Patents

Yan Guan's latest patents include:

1. **Method for depositing extremely low resistivity tungsten** - This patent discloses methods for depositing tungsten in semiconductor processing. The techniques involve annealing the substrate at various times during the deposition process to achieve uniform tungsten layers with substantially lower resistivity.

2. **Method for depositing tungsten film with low roughness and low resistivity** - This patent provides methods for producing low resistivity tungsten bulk layers that have low roughness. The methods involve CVD deposition of tungsten at high pressures and/or high temperatures, with alternating nitrogen gas pulses during the deposition process.

Career Highlights

Throughout his career, Yan Guan has worked with prominent companies in the semiconductor industry, including Novellus Systems Incorporated and Lam Research Corporation. His experience in these organizations has contributed significantly to his expertise in tungsten deposition technologies.

Collaborations

Yan has collaborated with talented individuals such as Deqi Wang and Raashina Humayun, who have contributed to his research and development efforts in the field.

Conclusion

Yan Guan's innovative work in tungsten deposition methods has made a significant impact on semiconductor processing technologies. His patents reflect a commitment to advancing the efficiency and effectiveness of materials used in the industry.