Company Filing History:
2 out of 1,935 
1 out of 13 
1 out of 1 Years Active: 1997-1998
Title: The Innovations of Lubek Jastrzebski
Introduction
Lubek Jastrzebski is a notable inventor based in Tampa, FL, who has made significant contributions to the field of semiconductor technology. With a focus on measuring mobile ion concentrations and minority carrier diffusion lengths, Jastrzebski holds 2 patents that showcase his innovative approaches to complex challenges in semiconductor manufacturing.
Latest Patents
Jastrzebski's latest patents include a method and apparatus for measuring the concentration of mobile ions in the oxide layer of a semiconductor wafer. This invention utilizes the contact potential shift caused by ion drift across the oxide, which involves depositing charge on the surface and heating the wafer to allow mobile ions, particularly sodium ions, to drift. The difference in contact potential measured before and after heating provides an indication of the mobile ion concentration in the oxide layer.
Another significant patent focuses on determining long minority carrier diffusion lengths. This invention accurately measures diffusion lengths that exceed the thickness of the wafer while minimizing errors from lateral carrier diffusion, surface reflectivity, and temperature variations. A specialized probe is employed to sense photovoltage in an area spaced from the edge of the illuminated region, ensuring measurements are substantially free from errors. This probe can also measure surface reflectivity simultaneously, which is particularly beneficial for analyzing wafers with dielectric coatings.
Career Highlights
Throughout his career, Lubek Jastrzebski has worked with esteemed organizations such as the University of South Florida and Semiconductor Diagnostics, Inc. His work in these institutions has allowed him to develop and refine his innovative techniques in semiconductor technology.
Collaborations
Jastrzebski has collaborated with notable colleagues, including Piotr Edelman and Jacek J Lagowski. These partnerships have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Lubek Jastrzebski's contributions to semiconductor technology through his innovative patents highlight his expertise and dedication to advancing the field. His work continues to influence the industry and pave the way for future innovations.