Joseph J Maisano, Jr

Title: **Joseph J. Maisano, Jr.: Innovator in Chemical Engineering and Integrated Circuit Devices**

Introduction

Joseph J. Maisano, Jr. is a distinguished inventor based in Denville, NJ, USA, known for his significant contributions to the fields of chemical engineering and integrated circuit technologies. With a portfolio of six patents, his innovations have addressed critical needs in both the semiconductor and electronics industries.

Latest Patents

Among Maisano's notable patents is the creation of a chemical etchant for palladium, which introduces a cyanide-based aqueous solution specifically designed for stripping palladium from copper-containing substrates. This solution contains a variety of components including a cyanide radical source compound, Na2CO3, a nitrobenzoic acid, NaOH, a thallium compound, an organo mercapto compound, and water. The effective use of the organo mercapto compound within this thallium-containing cyanide bath facilitates efficient stripping of palladium while minimizing corrosion damage to the substrate.

Another significant innovation is the development of integrated circuit devices with solderable lead frames. This invention comprises a packaged device featuring a lead frame and an article of manufacture that incorporates a base metal with several protective layers. These layers include a nickel layer, a protective composite of metal layers consisting of palladium or a soft gold strike, palladium-nickel alloy, palladium, and an outer gold layer. Each layer serves its unique purpose, from bonding to trapping metal ions, ensuring high-quality performance of the devices.

Career Highlights

Joseph has had a remarkable career, working at prominent organizations such as AT&T Bell Laboratories and AT&T Corp. His experiences at these institutions have significantly influenced his innovative designs and research endeavors, enabling him to contribute to advancements in technology.

Collaborations

Throughout his career, Joseph has collaborated with several notable professionals, including Joseph Anthony Abys and Igor V. Kadija. These partnerships have fostered a rich environment for innovation, leading to the development of groundbreaking technologies that have impacted the industry.

Conclusion

Joseph J. Maisano, Jr. embodies the spirit of innovation through his extensive work in creating patents that enhance chemical processes and electronic devices. His contributions continue to have lasting implications for the technological landscape, marking him as a significant figure among contemporary inventors.