This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Societe De Production Et De Recherches Appliquees, Societe De Production Et De Recherches Appliquees Sopra. Active years: 1999-2010.
Company Filing History:
2 out of 7 
1 out of 2 Years Active: 1999-2010
Title: **Innovator Jean-Philippe Piel: Pioneering Advances in Lithography and Ellipsometry**
Introduction
Jean-Philippe Piel is an accomplished inventor based in Marly-le-Roi, France, known for his significant contributions to the fields of lithography and optical measurement. With three patents to his name, Piel's inventions demonstrate a commitment to advancing technology and delivering practical solutions in his area of expertise.
Latest Patents
Piel's latest patents reflect his innovative spirit and technical prowess. One of his notable inventions is an **equipment and method for monitoring an immersion lithography device**. This invention focuses on a device equipped with a primary light source and projection optics designed for printing images on a wafer using a liquid as the propagating medium. The equipment includes a chamber to contain part of the liquid, a diffraction grating submerged in the chamber, and a secondary light source that emits a beam toward the grating, enabling the measurement of diffraction angles to assess the refractive index of the immersion liquid.
Another significant invention is his **compact spectroscopic ellipsometer**. This ellipsometer consists of various components including a source emitting a broadband ray, a polarizer to create a polarized beam for sample illumination, and an analyzer to provide output in response to the reflected beam. The innovative design includes refracting and reflecting optical elements arranged in a manner that optimizes the collection and focusing of beams, thereby enhancing the precision of optical measurements.
Career Highlights
Throughout his career, Jean-Philippe Piel has worked with leading organizations such as Société de Production et de Recherches Appliquées and Société de Production et de Recherches Appliquées Sopra. His experience in these companies has contributed to his extensive knowledge and innovative capabilities within the technology sector.
Collaborations
Piel has collaborated with esteemed professionals in his field, including esteemed coworkers Jean-Louis Stehle and Dorian Zahorski. These collaborations have allowed him to further enhance his inventions and contribute to ongoing developments in optical technology.
Conclusion
Jean-Philippe Piel remains a prominent figure embodying the spirit of innovation in the fields of lithography and optical measurement. His contributions continue to influence the industry, showcasing how dedicated inventors can drive technological advancement and create valuable tools for various applications. With his ongoing commitment to innovation, Piel is sure to produce further impactful inventions in the future.