Lawson Lightfoot

Title: Lawson Lightfoot: Innovator in Photoresist Technology

Introduction

Lawson Lightfoot is a notable inventor based in Cheshire, GB. He has made significant contributions to the field of photoresist technology, particularly in the development of dry film photoresists used in printed circuit board manufacturing. His innovative approach has led to the creation of a patented solution that enhances the solder mask application process.

Latest Patents

Lightfoot holds a patent for a dry film photoresist designed for forming a conformable mask. This invention includes a cover sheet, a photoimageable composition layer that is curable to form a solder mask, and a top coat that is selectively adherent to the photoimageable composition layer. The dry film is applied to a printed circuit board, allowing for precise lamination to irregular surfaces. The process involves peeling away the cover sheet and using heat and vacuum to conform the photoimageable composition layer to the contours of the board. This results in a hard, permanent solder mask after exposure to patterned actinic radiation.

Career Highlights

Lightfoot is associated with Morton International, Inc., where he has contributed to advancements in materials used for electronic applications. His work has been instrumental in improving the efficiency and effectiveness of solder mask applications in the electronics industry.

Collaborations

Throughout his career, Lightfoot has collaborated with notable colleagues, including Frederick J. Axon and James J. Briguglio. These partnerships have fostered innovation and have led to the successful development of new technologies in the field.

Conclusion

Lawson Lightfoot's contributions to photoresist technology exemplify the impact of innovation in the electronics industry. His patented solutions continue to influence the manufacturing processes of printed circuit boards, showcasing the importance of inventive thinking in advancing technology.