Patents by Inventor Anne M. Lackner

Anne M. Lackner 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).

  • Patent number: 4184908
    Abstract: A method for polishing semiconductors, particularly surfaces of CdS. The method is comprised of polishing a substrate with a pad charged with Transene and Cab-O-Sil while an iodine solution is added in small quantities. The last period of polishing is done while flushing the polishing pad with Transene. Upon completion of polishing, the substrate is given an immediate wash with Transene, followed by ultrasonic cleaning in Transene. After the ultrasonic cleaning, the substrate is again rinsed in Transene and then spun dried. The cleaning process is continuous and the cleaning solutions are kept in active contact with the substrate in order to provide a haze-free product.
    Type: Grant
    Filed: October 5, 1978
    Date of Patent: January 22, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Anne M. Lackner, Phillip G. Reif