Patents by Inventor Pythias V. Herrera

Pythias V. Herrera has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • POST-TEXTURING CLEANING METHOD FOR PHOTOVOLTAIC SILICON SUBSTRATES
    Publication number: 20110079250
    Abstract: An improved method for post-texturing cleaning, surface conditioning, and rinsing silicon wafers or similar surfaces, with particular, although not exclusive, applicability in photovoltaic applications which includes cleaning the surfaces sequentially with dilute HF/HCl and dilute oxidizing rinse, particularly following texturing with concentrated HF/HNO3 and/or KOH. The method allows for the recycling of the oxidizing rinse in the dilute HF/HCl and other upstream rinse steps.
    Type: Application
    Filed: October 1, 2009
    Publication date: April 7, 2011
    Applicant: MT SYSTEMS, INC.
    Inventors: Karen A. Reinhardt, Pythias V. Herrera, Thomas M. Vukosav