Patents by Inventor Alla Naumovna Lupacheva

Alla Naumovna Lupacheva 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).

  • Heterogeneous semiconductor structure with composition gradient and method for producing same
    Patent number: 4117504
    Abstract: A heterogeneous semiconductor structure with a composition gradient is used to produce lasers, spectrometers and pressure gauges and comprises a substrate, a transition layer and a main layer in the form of a doped solid solution of AB.sub.x C.sub.1-x having a composition gradient with a constant direction parallel to the main axis of the substrate's surface. The transition layer 2 is also of a doped solid solution of AB.sub.x C.sub.1-x whose composition continuously changes along the main axis, from the portion with a maximum content of the AB component to the portion corresponding to a maximum content of the AC component in the direction perpendicular to the substrate's surface, and from the composition of the main layer 3 on the boundary with the transition layer 2 to the composition having a maximum content of the AB component on the boundary with the substrate.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: September 26, 1978
    Inventors: Vadim Nikolaevich Maslov, Oleg Evgenievich Korobov, Alla Naumovna Lupacheva, Alexandr Nikolaevich Vlasov, Viktor Vasilievich Myasoedov, Ellin Petrovich Bochkarev, Felix Aronovich Gimelfarb, Izidor Karlovich Bronshtein, Natalya Ivanovna Lukicheva, Evgeny Vladimirovich Sinitsyn, Jury Varnavovich Sokurenko, Elena Sergeevna Jurova, Elena Mikhailovna Kistova, Marina Andreevna Konstantinova, Veniamin Mikhailovich Samaginov