Patents by Inventor Dong-Joo Bae

Dong-Joo Bae 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: 8962419
    Abstract: A process of forming a CMOS integrated circuit by forming a first stressor layer over two MOS transistors of opposite polarity, removing a portion of the first stressor layer from the first transistor, and forming a second stressor layer over the two transistors. A source/drain anneal is performed, crystallizing amorphous regions of silicon in the gates of the two transistors, and subsequently removing the stressor layers. A process of forming a CMOS integrated circuit by forming two transistors of opposite polarity, forming a two stressor layers over the transistors, annealing the integrated circuit, removing the stressor layers, and siliciding the transistors. A process of forming a CMOS integrated circuit with an NMOS transistor and a PMOS transistor using a stress memorization technique, by removing the stressor layers with wet etch processes.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 24, 2015
    Assignee: Texas Instruments Incorporated
    Inventors: Russell Carlton McMullan, Dong Joo Bae
  • Publication number: 20150011061
    Abstract: A process of forming a CMOS integrated circuit by forming a first stressor layer over two MOS transistors of opposite polarity, removing a portion of the first stressor layer from the first transistor, and forming a second stressor layer over the two transistors. A source/drain anneal is performed, crystallizing amorphous regions of silicon in the gates of the two transistors, and subsequently removing the stressor layers. A process of forming a CMOS integrated circuit by forming two transistors of opposite polarity, forming a two stressor layers over the transistors, annealing the integrated circuit, removing the stressor layers, and siliciding the transistors. A process of forming a CMOS integrated circuit with an NMOS transistor and a PMOS transistor using a stress memorization technique, by removing the stressor layers with wet etch processes.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Inventors: Russell Carlton McMULLAN, Dong Joo BAE
  • Patent number: 8871587
    Abstract: A process of forming a CMOS integrated circuit by forming a first stressor layer over two MOS transistors of opposite polarity, removing a portion of the first stressor layer from the first transistor, and forming a second stressor layer over the two transistors. A source/drain anneal is performed, crystallizing amorphous regions of silicon in the gates of the two transistors, and subsequently removing the stressor layers. A process of forming a CMOS integrated circuit by forming two transistors of opposite polarity, forming a two stressor layers over the transistors, annealing the integrated circuit, removing the stressor layers, and siliciding the transistors. A process of forming a CMOS integrated circuit with an NMOS transistor and a PMOS transistor using a stress memorization technique, by removing the stressor layers with wet etch processes.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: October 28, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Russell Carlton McMullan, Dong Joo Bae
  • Patent number: 7927987
    Abstract: Methods and devices for preventing channeling of dopants during ion implantation are provided. The method includes providing a semiconductor substrate and depositing a sacrificial scattering layer over at least a portion a surface of the substrate, wherein the sacrificial scattering layer includes an amorphous material. The method further includes ion implanting a dopant through the sacrificial scattering layer to within a depth profile in the substrate. Subsequently, the sacrificial scattering layer can be removed such that erosion of the substrate surface is less than one percent of a thickness of the sacrificial scattering layer.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: April 19, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Shawn T. Walsh, Dong Joo Bae, Vikram N. Doshi
  • Publication number: 20100015766
    Abstract: A process of forming a CMOS integrated circuit by forming a first stressor layer over two MOS transistors of opposite polarity, removing a portion of the first stressor layer from the first transistor, and forming a second stressor layer over the two transistors. A source/drain anneal is performed, crystallizing amorphous regions of silicon in the gates of the two transistors, and subsequently removing the stressor layers. A process of forming a CMOS integrated circuit by forming two transistors of opposite polarity, forming a two stressor layers over the transistors, annealing the integrated circuit, removing the stressor layers, and siliciding the transistors. A process of forming a CMOS integrated circuit with an NMOS transistor and a PMOS transistor using a stress memorization technique, by removing the stressor layers with wet etch processes.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 21, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Russell Carlton McMULLAN, Dong Joo BAE
  • Publication number: 20080242018
    Abstract: Methods and devices for preventing channeling of dopants during ion implantation are provided. The method includes providing a semiconductor substrate and depositing a sacrificial scattering layer over at least a portion a surface of the substrate, wherein the sacrificial scattering layer includes an amorphous material. The method further includes ion implanting a dopant through the sacrificial scattering layer to within a depth profile in the substrate. Subsequently, the sacrificial scattering layer can be removed such that erosion of the substrate surface is less than one percent of a thickness of the sacrificial scattering layer.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 2, 2008
    Inventors: Shawn T. Walsh, Dong Joo Bae, Vikram N. Doshi
  • Patent number: 6426277
    Abstract: A method and a device for locally heating a semiconductor wafer having a first region of a first impurity and a second region of a second impurity having a diffusion rate different from that of the first impurity. A field oxide layer, a P well and an N well, gate oxide layers, gate electrodes, an N-type region and a P-type region are formed in sequence on or in a silicon wafer. The wafer is placed into a chamber. Then, a mask, which has a pattern for blocking the radiation from the heat source to the N well of the wafer, is positioned between the heat source and the wafer. The heat source emits radiation for heating the wafer, thereby the donor-type dopant atoms in the N-type region are diffused with a diffusion depth of d2 to form an electrically active region, but the acceptor-type dopant atoms in the P-type region are not diffused. After this step, a mask, which has a pattern for blocking the radiation from the heat source to the P well of the wafer, is positioned between the heat source and the wafer.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: July 30, 2002
    Assignees: Anam Semiconductor Inc., Amkor Technology, Inc.
    Inventors: Dong-Joo Bae, Kang-Wan Lee
  • Patent number: 5320980
    Abstract: An interconnection structure of a semiconductor device for electrically connecting a thin conductive layer and a metallization and the fabrication method thereof are disclosed. The interconnection structure includes a semiconductor substrate, an insulating layer coated on the substrate, a thick conductive layer formed on a certain portion of the insulating layer, a first interlaid insulating layer covering the thick conductive layer, a first contact hole formed within the first interlaid insulating layer on the thick conductive layer, a thin conductive layer consisting of vertical structure formed in the first contact hole and horizontal structure formed on the first interlaid insulating layer, a second interlaid insulating layer covering the thin conductive layer, a second contact hole formed within said first and second interlaid insulating layers and crossing the first contact hole, and a metallization filling the second contact hole and formed on the second interlaid insulating layer.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: June 14, 1994
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-joo Bae, Sung-nam Chang
  • Patent number: 5285110
    Abstract: An interconnection structure of a semiconductor device for electrically connecting a thin conductive layer and a metallization and the fabrication method thereof are disclosed. The interconnection structure includes a semiconductor substrate, an insulating layer coated on the substrate, a thick conductive layer formed on a certain portion of the insulating layer, a first interlaid insulating layer covering the thick conductive layer, a first contact hole formed within the first interlaid insulating layer on the thick conductive layer, a thin conductive layer consisting of vertical structure formed in the first contact hole and horizontal structure formed on the first interlaid insulating layer, a second interlaid insulating layer covering the thin conductive layer, a second contact hole formed within said first and second interlaid insulating layers and crossing the first contact hole, and a metallization filling the second contact hole and formed on the second interlaid insulating layer.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: February 8, 1994
    Assignee: Samsung Electronicw Co., Ltd.
    Inventors: Dong-joo Bae, Sung-nam Chang
  • Patent number: 5256585
    Abstract: Disclosed is a method for fabricating a MOS transistor of the GOLD structure that allows self-aligning contact process and more precise control of low-concentration diffusion regions. The method characteristically includes the steps of: forming an oxide layer(55) over the conductive electrode(53a,54a,58a), the thickness of the oxide layer being sufficiently greater than the gate oxide layer, and depositing an insulating interlayer(61) over the semiconductor substrate after forming source and drain regions, the insulating interlayer being directionally etched through a photoresist pattern, so as to form a contact hole having a width extended up to a partial portion of the conductive electrode. The effective channel widths of the low-concentration diffusion regions may be precisely controlled only by adjusting the thickness of polysilicon (or refractory metal or silicide thereof) layer selectively deposited on the side walls of the conductive electrode.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: October 26, 1993
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Dong-Joo Bae
  • Patent number: 5236859
    Abstract: There is disclosed a stacked capacitor with high capacity which ensures structural stability in a DRAM cell and a method for manufacturing the same. The stacked-capacitor is of a hollow (or cylindrical) capacitor where both ends of several polysilicon layers which form a storage electrode are connected with each other. In construction, this inventive stacked-capacitor includes: a first polysilicon layer coupled to the source region so as to extend in parallel with surface of the substrate over the left and right sides of the source region; a bridge polysilicon layer, extending in the upward direction of the substrate from both ends of the first polysilicon layer; a dielectric film formed so as to contact with the surfaces of the bridge polysilicon layer, first polysilicon layer, second polysilicon layer; and a third polysilicon layer formed so as to contact with the surface of the dielectric film.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: August 17, 1993
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Dong-Joo Bae, Won-Shik Baek, Kyu-Hyun Choi
  • Patent number: 5187548
    Abstract: There is disclosed a stacked capacitor comprising a fin-shaped storage electrode of multiple polysilicon layers with supporting layers therebetween so as to compensate for the structural weakness of the fin-shaped storage electrode.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: February 16, 1993
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Shik Baek, Kyu-Hyun Choi, Dong-Joo Bae
  • Patent number: 5135883
    Abstract: A stacked capacitor of the fin-like structure is provided wherein the plurality of polysilicon layers constituting the storage electrode are connected with each other in the sawtooth-like manner to overcome the structural instability of the fin-like structure. The polysilicon layers constituting the storage electrode are extended overlaying each other, so that the capacity of the capacitor in a highly integrated DRAM may be increased without increasing the area occupied by the capacitor.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: August 4, 1992
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Joo Bae, Kyu-Hyun Chio, Won-Shik Baek
  • Patent number: 5095346
    Abstract: There is disclosed a stacked capacitor with high capacity which ensures structural stability in a DRAM cell and a method for manufacturing the same. The stacked-capacitor is of a hollow (or cylindrical) capacitor where both ends of several polysilicon layers which form a storage electrode are connected with each other. In construction, this inventive stacked-capacitor includes: a first polysilicon layer coupled to the source region so as to extend in parallel with surface of the substrate over the left and right sides of the source region; a bridge polysilicon layer, extending in the upward direction of the substrate from both ends of the first polysilicon layer; a dielectric film formed so as to contact with the surfaces of the bridge polysilicon layer, first polysilicon layer, second polysilicon layer; and a third polysilicon layer formed so as to contact with the surface of the dielectric film.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: March 10, 1992
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Dong-Joo Bae, Won-Shik Baek, Kyu-Hyun Choi
  • Patent number: 4965214
    Abstract: Method for manufacturing polycrystalline silicon having high resistance, having a first step for depositing a polycrystalline silicon layer for a resistor area over a silicon semiconductor substrate; a second step for growing a first thermal oxide layer having a first specified depth over the polycrystalline silicon layer, ion-implanting with the nitrogen thereon, and growing a second thermal oxide layer having a second specified depth on the ion-implanted layer; a third step for forming a resistor pattern of the polycrystalline silicon with a photo etching method; and a fourth step for ion-implanting impurities in order to decrease the resistance of the polycrystalline silicon as contact regions to be used in resistance contacts with a fixed semiconductor region on the substrate.
    Type: Grant
    Filed: July 27, 1988
    Date of Patent: October 23, 1990
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Kyu H. Choi, Jung H. Lee, Heyung-Sub Lee, Tae-Yoon Yook, Dong-Joo Bae