Company Filing History:
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Years Active: 2001-2008
Title: B Leo Kwak: Innovator in Semiconductor Technology
Introduction
B Leo Kwak is a notable inventor based in Beaverton, OR (US), recognized for his contributions to semiconductor technology. He holds a total of 3 patents, showcasing his innovative approach to enhancing the performance and reliability of semiconductor devices.
Latest Patents
One of his latest patents focuses on the adhesion and/or encapsulation of silicon carbide-based semiconductor devices on ceramic substrates. This invention involves a SiC die with Os and/or W/WC/TiC contacts and metal conductors, which is encapsulated using a borosilicate (BSG) glass. This glass is formed at a temperature well below the upper device operating temperature limits, serving as a stable protective layer above 1000°C, preferably exceeding 1200°C. The BSG glass composition is ideally 30-50% BO and 70-50% SiO, created by reacting a mixed powder, slurry, or paste of the components at temperatures ranging from 460°C to 1000°C, with an optimal temperature around 700°C. The die can be mounted on the ceramic substrate using the BSG as an adhesive, while also protecting the metal conductors on the ceramic substrate. The preferred ceramic substrate for this application is AlN, although SiC/AlN or AlO can also be utilized.
Career Highlights
Throughout his career, B Leo Kwak has worked with several prominent companies in the semiconductor industry. Notable among these are Caldus Semiconductor, Inc. and Advanced Power Technology Corporation. His experience in these organizations has contributed significantly to his expertise and innovative capabilities in the field.
Collaborations
B Leo Kwak has collaborated with various professionals in his field, including his coworker James D Parsons. These collaborations have likely fostered an environment of innovation and shared knowledge, further enhancing the development of advanced semiconductor technologies.
Conclusion
B Leo Kwak's contributions to semiconductor technology through his patents and career experiences highlight his role as an influential inventor in the industry. His innovative approaches continue to shape the future of semiconductor devices.