Patents Assigned to Minnesota Mining & Manufacturing Compay
  • Buried ridge II-VI laser diode
    Patent number: 5404027
    Abstract: A buried-ridge or buried-heterostructure II-VI laser diode. Polycrystalline II-VI semiconductor such as ZnS, ZnSSe, ZnSe or CdS deposited by vacuum evaporation buries the etched ridge.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: April 4, 1995
    Assignee: Minnesota Mining & Manufacturing Compay
    Inventors: Michael A. Haase, Jun Qiu, Hwa Cheng, James M. DePuydt