Patents by Inventor Florian Kugler

Florian Kugler 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).

  • III(A)-(VB) Type luminescent diode
    Patent number: 4045257
    Abstract: Due to its dopant structure, the radiant band of a III(A) - V(B) type luminescent diode, emitting light radiation in the plane of the PN-junction, possesses differences in delay time of .ltoreq. 10.sup.-10 seconds, which permit an extension to higher frequencies.The dopant structure is characterized by an n.sup.+ type basic material incorporating an impurity concentration of N.sub.D .gtoreq. 10.sup.18 cm.sup.-3, and by a graded acceptor dopant profile which within the radiant region has a gradient of .ltoreq. 10.sup.22 cm.sup.-4 and a gradient of .gtoreq. 10.sup.23 cm.sup.-4 in the vicinity of the p.sup.+ region. Thus the injection conditions in respect to the quantum efficiencies and to the frequency range are improved. The diode is fabricated by a diffusion process and/or a liquid epitaxial process, in which definite temperatures and time relations have to be satisfied.
    Type: Grant
    Filed: July 10, 1975
    Date of Patent: August 30, 1977
    Assignee: Jenoptik Jena G.m.b.H.
    Inventors: Ehrenfried Butter, Brigitte Jacobs, Klaus Jacobs, Konrad Unger, Alfred Zehe, Rainer Doss, Florian Kugler