Patents by Inventor Francesca Pozzi

Francesca Pozzi 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).

  • Semiconductor device and fabrication method
    Patent number: 9401404
    Abstract: A semiconductor device is disclosed comprising: a substrate having a surface comprising germanium; a layer of gallium on said surface; and a layer of gallium arsenide on the gallium covered surface. The semiconductor heterostructure of gallium arsenide on germanium is fabricated by the steps of: protecting by a shutter a surface comprising germanium in an environment having a partial pressure of arsenic less than 10?8torr; epitaxially growing a layer of gallium on the said surface immediately after exposure of said surface; and epitaxially growing a layer of gallium arsenide on the gallium covered surface.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: July 26, 2016
    Assignee: UCL BUSINESS PLC
    Inventors: Huiyun Liu, Alwyn John Seeds, Francesca Pozzi
  • Semiconductor Device and Fabrication Method
    Publication number: 20140016659
    Abstract: A semiconductor device is disclosed comprising: a substrate having a surface comprising germanium; a layer of gallium on said surface; and a layer of gallium arsenide on the gallium covered surface. The semiconductor heterostructure of gallium arsenide on germanium is fabricated by the steps of: protecting by a shutter a surface comprising germanium in an environment having a partial pressure of arsenic less than 10?8torr; epitaxially growing a layer of gallium on the said surface immediately after exposure of said surface; and epitaxially growing a layer of gallium arsenide on the gallium covered surface.
    Type: Application
    Filed: February 24, 2012
    Publication date: January 16, 2014
    Applicant: UCL BUSINESS PLC
    Inventors: Huiyun Liu, Alwyn John Seeds, Francesca Pozzi