Patents by Inventor Kim Yi-tae

Kim Yi-tae 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).

  • Image sensor having photo diode and method for manufacturing the same
    Publication number: 20040180458
    Abstract: An image sensor having a photo diode with improved sensitivity, junction leakage and electron capacity, and a method for manufacturing the image sensor, are provided. The provided image sensor includes a semiconductor substrate and a p-type photo diode region formed on a selected region of the semiconductor substrate. A first n-type photo diode region is formed underneath the p-type photo diode region, contacting an interface of the p-type photo diode region, and a second n-type photo diode region is formed to surround the first n-type photo diode region. Here, impurities composing the first n-type photo diode region have smaller projection distance and diffusivity than impurities composing the second n-type photo diode region.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 16, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Kim Yi-tae