Charlestown, MA, United States of America

Joanna M London

This inventor holds 1 USPTO granted patent. Top assignee: Massachusetts Institute of Technology. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Joanna M London. Retrieved from https://idiyas.com/inventor/joanna-m-london

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 117(Granted Patents)


Company Filing History:


Years Active: 2002

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1 patent (USPTO):Explore Patents

Title: Innovator Joanna M London: Leading Advancements in Optoelectronic Integration

Introduction: Joanna M London, based in Charlestown, MA, is a prominent inventor recognized for his significant contributions to the field of optoelectronics. With one patented invention, London has demonstrated an innovative approach to bonding silicon substrates with III-V material substrates, paving the way for future advancements in semiconductor technology.

Latest Patents: Joanna M London holds a patent for "Silicon on III-V semiconductor bonding for monolithic optoelectronic integration." This patent outlines a method for bonding a silicon substrate to a III-V material substrate. The process involves annealing the contacted substrates at elevated temperatures between approximately 150°C and 350°C. London’s invention facilitates the development of thick, strain-sensitive, and defect-sensitive optoelectronic devices while also allowing for the fabrication of silicon electronic devices in a thinned silicon layer. This innovation minimizes thermally-induced stress in both substrates, enhancing the overall performance of composite substrate structures.

Career Highlights: London enhances the research landscape as an integral part of the Massachusetts Institute of Technology, a prestigious institution known for its cutting-edge advancements in technology and engineering. His groundbreaking work in semiconductor bonding positions him as a key figure in the ongoing evolution of optoelectronic devices, which are crucial for modern communication systems.

Collaborations: Throughout his career, Joanna M London has collaborated with talented individuals in the field, including Clifton Fonstad, Jr. and Joseph F Ahadian. These partnerships have fostered an environment of shared ideas and innovations, contributing to the development of advanced technologies and applications in the semiconductor realm.

Conclusion: As an inventor, Joanna M London continues to influence the future of optoelectronic integration through his pioneering methods and collaborative efforts. His patent serves as a landmark in the field, enabling more robust and efficient electronic devices that leverage the best of both silicon and III-V materials. As technology progresses, London's contributions will undoubtedly resonate in the ongoing journey of innovation and discovery.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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