Francisca Tung

Title: The Innovative Contributions of Francisca Tung

Introduction

Francisca Tung is a prominent inventor based in Los Gatos, California. She has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. Her work has advanced the development of circuit boards and semiconductor dies, showcasing her expertise and innovative spirit.

Latest Patents

One of her latest patents is titled "Bump formation on yielded semiconductor dies." This invention provides a hermetically sealed bond pad at the surface of a semiconductor chip. The ball bump structure includes an adhesion pad formed at the surface of the bond pad, which consists of a barrier layer, preferably a titanium/tungsten alloy, and a bonding layer, such as a sputtered gold layer. A gold ball bump is then formed on the adhesion pad, and methods for creating this improved structure are also disclosed.

Another notable patent is the "Sequential multilayer process for using fluorinated hydrocarbons." This method involves forming a multilayer circuit board through a build-up process. It begins with a solidified layer of dielectric on a substrate, followed by the sequential deposition of alternate layers of conducting metal and dielectric. Each layer is defined using photoresist and photolithographic techniques, allowing for the creation of conductive posts that function as through holes between metal layers. This process can be repeated to build up layers of conducting metal and dielectric, ultimately forming a completed multilayer wiring board.

Career Highlights

Francisca Tung has worked with notable companies in the technology sector, including Digital Equipment Corporation and VLSI Technology, Inc. Her experience in these organizations has contributed to her development as an inventor and her understanding of semiconductor technologies.

Collaborations

Throughout her career, Francisca has collaborated with esteemed colleagues, including James C. Lee and Arshad Ahmad. These partnerships have likely enriched her work and led to innovative advancements in her field.

Conclusion

Francisca Tung's contributions to semiconductor technology and circuit board development highlight her role as a leading inventor. Her patents reflect her innovative approach and dedication to advancing technology. Her work continues to influence the industry and inspire future innovations.