Wonill Ha

Title: Innovations in Semiconductor Technology: The Work of Wonill Ha

Introduction

Wonill Ha, an accomplished inventor based in Thousand Oaks, CA, has made significant contributions to the field of semiconductor technology. With a portfolio of 20 patents, he has been at the forefront of innovations that enhance semiconductor fabrication processes, showcasing his expertise and dedication to advancing this critical field.

Latest Patents

Among his latest patents, Ha introduced a method for fabricating sub-micron contacts to buried well devices. This method involves the formation of two isolation structures within a semiconductor, followed by etching a cavity in between. By implanting dopants into the cavity's bottom, Ha enables the formation of a doped region beneath the cavity, where a contact is subsequently established.

Another noteworthy patent focuses on the embedded high-Z marker material for alignment in multilevel electron beam lithography. This patent details techniques for creating a semiconductor device with improved alignment markers. His innovative method includes utilizing a backscatter electron detector to accurately determine the edge location of an alignment marker made from tantalum, facilitating the precise formation of at least one transistor in the substrate based on this location.

Career Highlights

Throughout his career, Wonill Ha has worked with renowned companies, including Flextronics International USA, Inc. and HRL Laboratories, LLC. His experiences in these high-profile organizations have further honed his skills and expertise in semiconductor technologies.

Collaborations

Ha has collaborated with several notable professionals in his field, including Berinder P.S. Brar and Hasan Sharifi. These partnerships have allowed him to exchange ideas and develop innovative solutions that contribute to the advancement of semiconductor fabrication techniques.

Conclusion

Wonill Ha stands out as a leading inventor in semiconductor technology, with his impressive portfolio of patents marking significant achievements in the industry. As he continues to innovate, his work not only improves current practices but also paves the way for future advancements in semiconductor fabrication.