Zhao Li

Title: Innovations of Inventor Zhao Li

Introduction

Zhao Li is a notable inventor based in Blacksburg, VA (US), recognized for his contributions to optical systems and semiconductor processing. With a total of 2 patents, he has made significant advancements in his field.

Latest Patents

One of Zhao Li's latest patents is titled "Enhanced backscatter fiber with tapering enhancement." This invention involves an optical system designed to measure acoustic signals in a wellbore. The system comprises a light source, an optical fiber, and a detector. The light source generates a light pulse, which is received by the optical fiber that contains enhancement scatterers. These scatterers are strategically spaced along the fiber to reflect the light pulse, with their density increasing away from the light source to enhance the signal. The detector measures the reflection of the light pulse to determine the acoustic signal.

Another significant patent is the "Ultra low silicon loss high dose implant strip." This invention provides improved methods for stripping photoresist and removing ion implant-related residues from a workpiece surface. The process involves generating plasma using elemental hydrogen, a fluorine-containing gas, and a protectant gas. The plasma-activated gases react with the high-dose implant resist, effectively removing both the crust and bulk resist layers while protecting the exposed portions of the workpiece surface, resulting in a substantially residue-free surface with low silicon loss.

Career Highlights

Zhao Li has worked with prominent companies in the industry, including Novellus Systems Incorporated and Baker Hughes Oilfield Operations LLC. His experience in these organizations has contributed to his expertise and innovative capabilities.

Collaborations

Throughout his career, Zhao Li has collaborated with talented individuals such as David Wingto Cheung and Haoquan Fang. These partnerships have likely fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Zhao Li's work exemplifies the spirit of innovation in the fields of optical systems and semiconductor processing. His patents reflect a commitment to advancing technology and improving existing methods.