Patents by Inventor Bo Ram GU

Bo Ram GU 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).

  • Publication number: 20230180458
    Abstract: A semiconductor memory device includes a substrate including an active area defined by an element separation layer, the active area including a first portion and second portions defined on both sides of the first portion a bit line crossing the active area and extending in a first direction on the substrate, and a bit line contact disposed between the substrate and the bit line and directly connected to the first portion of the active area. The bit line contact includes an indent area recessed into the substrate and an upper area on the indent area, a width of the indent area decreases as a distance from the bit line increases, the indent area includes a slope forming a boundary with the substrate and having a straight line shape, and a starting point of the slope of the indent area is lower than an upper surface of the element separation layer.
    Type: Application
    Filed: September 19, 2022
    Publication date: June 8, 2023
    Inventors: BEOM SEO KIM, Bo Ram GU, Ja Min KOO, Sung Gil KIM, Jong Hyeok KIM