Patents by Inventor Julie J. Rimington

Julie J. Rimington 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).

  • Guard ring structure with graded Be implantation
    Patent number: 5233209
    Abstract: An avalanche photodiode having a beryllium guard ring. The beryllium is implanted at a dosage of at least 5.times.10.sup.14 per cm.sup.2 and subsequently annealed to provide a guard ring profile with a p+core and a superlinearly graded tail. The doping profile of the guard ring immediately adjacent the core is superlogarithmic.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: August 3, 1993
    Assignee: BT&D Technologies Ltd.
    Inventors: Paul M. Rodgers, Michael J. Robertson, Julie J. Rimington