Patents by Inventor Gosain D. Pal

Gosain D. Pal 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).

  • Method of forming semiconductor crystal and semiconductor device
    Patent number: 5431126
    Abstract: A thin semiconductor film having at least one an edge is formed on a base whose material is different from the material of the thin semiconductor film. A laser beam, for example, is applied to the semiconductor film thereby to melt the semiconductor film including the edge for thereby beading the edge upwardly. The melted semiconductor film including the edge is solidified and hence recrystallized into a semiconductor crystal. A plurality of spaced reflecting films may be formed on the thin semiconductor film before the laser beam is applied. Various semiconductor devices including a thin-film transistor, a solar cell, and a bipolar transistor may be fabricated of the semiconductor crystal.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: July 11, 1995
    Assignee: Sony Corporation
    Inventors: Toshiyuki Sameshima, Masaki Hara, Naoki Sano, Gosain D. Pal, Atsushi Kono, Jonathan Westwater, Setsuo Usui