Patents by Inventor Raymond Haran

Raymond Haran 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).

  • Process for depositing a III-V semi-conductor layer on a substrate
    Patent number: 4250205
    Abstract: A process for depositing a layer of a semiconductor composition comprising elements M(III) and M'(V) selected from group III and group V elements, respectively onto a substrate. The process comprises: contacting the substrate with a coordination compound in the gaseous phase, the compound having the formula: ##STR1## wherein M(III) and M'(V) are bonded to one another by a donor/acceptor bond and wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are chemical radicals other than hydrogen with at least one of the radicals R.sub.1, R.sub.2, and R.sub.3 being an electron donor serving to stabilize the donor/acceptor bond between elements M(III) and M'(V). The process further comprises decomposing the coordination compound so as to break the chemical bonds between the radicals and the elements M(III) and M'(V) without breaking the donor/acceptor bond, so as to cause the semi-conductor composition to deposit onto the substrate.
    Type: Grant
    Filed: September 12, 1978
    Date of Patent: February 10, 1981
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Georges Constant, Raymond Haran, Albert Lebugle, Aref Zaouk, Roland Morancho, Philippe Pouvreau