Profile overview
Who is Jean M. J. Fréchet?
Jean M. J. Fréchet is an inventor associated with France and United States. Their documented work in materials & packaging includes Chemically amplified photoresist, the contribution at the center of this evidence-backed profile.
Jean M. J. Fréchet co-invented chemically amplified photoresists with C. Grant Willson, devising the molecular design principles, making the first materials and demonstrating the concept. Each absorbed photon initiates a catalytic chain of chemical reactions, greatly increasing sensitivity and allowing weak short-wavelength light to pattern much smaller features efficiently during chip fabrication.
What did Jean M. J. Fréchet invent?
Co-invented the design principles and first materials for chemically amplified photoresists used in semiconductor lithography.
What did Jean M. J. Fréchet accomplish?
Chemically amplified resists became the pattern-forming material behind nearly all microprocessors and memory chips, enabling repeated generations of smaller electronic features.
What is known about Jean M. J. Fréchet today?
SUNY ESF named Jean M. J. Fréchet its 2025 honorary degree recipient and described him as professor emeritus at UC Berkeley.
