Charles E Crepeau

Title: The Innovations of Charles E. Crepeau

Introduction

Charles E. Crepeau is an accomplished inventor based in Norristown, PA (US). He is known for his significant contributions to the field of materials science, particularly in the area of adhesion promotion for polyimide dielectric materials. His innovative work has led to the development of methods that enhance the bonding of these materials to various substrates.

Latest Patents

Charles E. Crepeau holds a patent for "Polymide-to-substrate adhesion promotion in HDI." This patent describes methods for adhering polyimide dielectric materials to copper, titanium, aluminum, or copper-and-titanium-containing portions of a substrate. The process involves applying an adhesion promoter to a clean surface of the substrate and curing it. Following this, SPIE varnish is applied over the cured adhesion promoter and is also cured. A further layer of adhesion promoter is then applied and cured before laminating the polyimide dielectric material to the adhesion promoter. The cleaning of the copper-containing substrate portions is performed by etching with cupric chloride, while titanium-containing portions are cleaned with HF etchant. Copper- and titanium-containing portions undergo HF etching followed by cupric chloride etching, whereas aluminum-containing portions are not etched.

Career Highlights

Charles E. Crepeau has made significant strides in his career, particularly through his work at Lockheed Martin Corporation. His expertise in adhesion promotion has been instrumental in advancing the technology used in various applications. With a focus on innovation, he has contributed to the development of materials that are essential in modern electronics.

Collaborations

Throughout his career, Charles has collaborated with notable colleagues, including Donald Franklin Foust and William Francis Nealon. These partnerships have fostered an environment of creativity and innovation, leading to advancements in their respective fields.

Conclusion

Charles E. Crepeau's contributions to the field of materials science and his innovative patent on adhesion promotion highlight his role as a significant inventor. His work continues to influence the industry and pave the way for future advancements in technology.