Patents by Inventor Hee-Seon Oh

Hee-Seon Oh 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).

  • Patent number: 7642592
    Abstract: An integrated circuit comprises a memory device including an isolation layer for defining an active area of a substrate, a tunnel oxide layer formed on the active area, a floating gate formed over the active area and the isolation layer, an inter-gate dielectric layer formed on the floating gate, and a control gate formed on the inter-gate dielectric layer. The integrated circuit also includes a high and low voltage transistors.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: January 5, 2010
    Assignee: Samsung Electronic Co., Ltd.
    Inventors: Jeoung-Mo Koo, Hee-Seon Oh
  • Publication number: 20070290252
    Abstract: An integrated circuit comprises a memory device including an isolation layer for defining an active area of a substrate, a tunnel oxide layer formed on the active area, a floating gate formed over the active area and the isolation layer, an inter-gate dielectric layer formed on the floating gate, and a control gate formed on the inter-gate dielectric layer. The integrated circuit also includes a high and low voltage transistors.
    Type: Application
    Filed: May 7, 2007
    Publication date: December 20, 2007
    Inventors: Jeoung-Mo Koo, Hee-Seon Oh
  • Patent number: 7259419
    Abstract: An integrated circuit comprises a memory device including an isolation layer for defining an active area of a substrate, a tunnel oxide layer formed on the active area, a floating gate formed over the active area and the isolation layer, an inter-gate dielectric layer formed on the floating gate, and a control gate formed on the inter-gate dielectric layer. The integrated circuit also includes a high and low voltage transistors.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: August 21, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeoung-Mo Koo, Hee-Seon Oh
  • Publication number: 20040238873
    Abstract: An integrated circuit comprises a memory device including an isolation layer for defining an active area of a substrate, a tunnel oxide layer formed on the active area, a floating gate formed over the active area and the isolation layer, an inter-gate dielectric layer formed on the floating gate, and a control gate formed on the inter-gate dielectric layer. The integrated circuit also includes a high and low voltage transistors.
    Type: Application
    Filed: March 12, 2004
    Publication date: December 2, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jeoung-Mo Koo, Hee-Seon Oh
  • Patent number: 6150206
    Abstract: Methods of forming integrated circuit capacitors include the steps of forming a trench in a first electrically insulating layer and then forming a first electrically conductive layer on a sidewall and bottom of the trench. A dielectric layer is then formed on the first electrically conductive layer. Next, a second electrically conductive layer is formed on the dielectric layer, opposite the first electrically conductive layer. A step is then performed to planarize the first and second electrically conductive layers to define first and second electrodes of a capacitor in the trench. In particular, the step of planarizing the first electrically conductive layer comprises planarizing the first electrically conductive layer to define a first electrode having a U-shaped cross-section. This step results in the formation of a first electrode having a relatively large effective area (which is a function of the depth of the trench) for a given lateral dimension.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: November 21, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hee-Seon Oh
  • Patent number: 6130138
    Abstract: A method of making a semiconductor device having a thin film resistor, the method comprising the steps of: forming a first polysilicon layer on an upper surface of a field oxide layer formed on a semiconductor substrate; forming a first dielectric layer on a resultant material; ion-implanting an impurity for forming a resistor in the first polysilicon layer through the first dielectric layer; forming a second dielectric layer on an upper surface of the first dielectric layer; selectively etching the first and second dielectric layers and the first polysilicon layer to form a resistor poly (RPOLY) lower electrode; forming a second polysilicon layer on an upper surface of a resultant material; and forming a gate poly (GPOLY) by selectively etching the second polysilicon layer.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: October 10, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hee-Seon Oh
  • Patent number: 6046474
    Abstract: Field effect transistors having tapered gate electrodes include a body region of first conductivity type extending to a surface of a semiconductor substrate. Source and drain regions of second conductivity type are formed in the substrate and a gate electrode is formed on a portion of the surface extending opposite the body region and between the source and drain regions. A gate electrode insulating layer is also disposed between the gate electrode and the surface. To improve the transistor's withstand voltage capability by reducing field crowding, the gate electrode insulating layer is preferably formed to have a tapered thickness which increases in a direction from the source region to the drain region, and to reduce on-state resistance the drain region is formed in a self-aligned manner to the gate electrode.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: April 4, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seon Oh, Seung-Joon Cha
  • Patent number: 5949100
    Abstract: A method of forming an integrated circuit device includes the steps of forming a first insulating layer on an integrated circuit substrate, forming a first capacitor electrode on the insulating layer opposite the substrate, and forming a second insulating layer on the first capacitor electrode and on the insulating layer opposite the substrate. A contact hole is formed in the second insulating layer thus exposing a surface of the first capacitor electrode. In particular, the contact hole exposes an edge portion of the first capacitor electrode and extends beyond the edge portion of the first capacitor electrode. A capacitor dielectric layer is formed on the exposed portion of the first capacitor electrode wherein the capacitor dielectric layer extends beyond the edge portion of the first capacitor electrode. A second capacitor electrode is formed on the dielectric layer wherein the second capacitor electrode extends beyond the edge portion of the first capacitor electrode.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: September 7, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seon Oh, Seung-Joon Cha
  • Patent number: 5913126
    Abstract: A method of forming an integrated circuit device includes the steps of forming a first insulating layer on an integrated circuit substrate, forming a first capacitor electrode on the insulating layer opposite the substrate, and forming a second insulating layer on the first capacitor electrode and on the insulating layer opposite the substrate. A contact hole is formed in the second insulating layer thus exposing a surface of the first capacitor electrode. In particular, the contact hole exposes an edge portion of the first capacitor electrode and extends beyond the edge portion of the first capacitor electrode. A capacitor dielectric layer is formed on the exposed portion of the first capacitor electrode wherein the capacitor dielectric layer extends beyond the edge portion of the first capacitor electrode. A second capacitor electrode is formed on the dielectric layer wherein the second capacitor electrode extends beyond the edge portion of the first capacitor electrode.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: June 15, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seon Oh, Seung-Joon Cha