Patents Assigned to Dongbu Electronics
  • Patent number: 7679126
    Abstract: A non-volatile memory device (e.g., a split gate type device) and a method of manufacturing the same are disclosed. The memory device includes an active region on a semiconductor substrate, a pair of floating gates above the active region, a charge storage insulation layer between each floating gate and the active region, a pair of wordlines over the active region and partially overlapping the floating gates, respectively, and a gate insulation film between each wordline and the active region. The method may prevent or reduce the incidence of conductive stringers on the active region between the floating gates, to thereby improve reliability of the memory devices and avoid the active region resistance from being increased due to the stringer.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: March 16, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Jin Hyo Jung
  • Patent number: 7675100
    Abstract: CMOS image sensor and method for fabricating the same, the CMOS image sensor including a second conductive type semiconductor substrate having an active region and a device isolation region defined therein, wherein the active region has a photodiode region and a transistor region defined therein, a device isolating film in the semiconductor substrate of the device isolation region, a first conductive type impurity region in the semiconductor substrate of the photodiode region, the first conductive type impurity region being spaced a distance from the device isolation film, and a second conductive type first impurity region in the semiconductor substrate between the first conductive type impurity region and the device isolation film, thereby reducing generation of a darkcurrent at an interface between the photodiode region and a field region.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: March 9, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Chang Hun Han
  • Patent number: 7675126
    Abstract: There are provided a MOSFET and a method for fabricating the same. The MOSFET includes a semiconductor substrate, a first epitaxial layer in a predetermined location of the semiconductor substrate, a second epitaxial layer doped with high concentration impurity ions on the first epitaxial layer, a gate structure on the second epitaxial layer, and source/drain regions with lightly doped drain (LDD) regions. The first epitaxial layer supplies carriers to the second epitaxial layer so that short channel effects are reduced.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: March 9, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Yong Soo Cho
  • Patent number: 7675023
    Abstract: An image sensor and a method for fabricating the same are provided. The image sensor includes color filter layers having a photonic crystal for color separation. Since transmittance of the color filter layers is higher than that of a pigment or dye of an organic material and can easily be controlled in an unnecessary wavelength region, the image sensor having high sensitivity and good color reproduction can be fabricated.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: March 9, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Sang Sik Kim
  • Patent number: 7674681
    Abstract: Disclosed are a semiconductor device and a method for manufacturing the same. The semiconductor device includes a semiconductor substrate including first and second well areas doped with second conductive ions, a third well area in the first well and doped with the second conductive ions, a base area in the third well and doped with first conductive ions, an emitter area in the third well and doped with the second conductive ions, an emitter electrode on the emitter area, a first contact plug in contact with the emitter electrode, a second contact plug in contact with the base area, a collector area in the second well and doped with the second conductive ions, and a third contact plug in contact with the collector area.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: March 9, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Woong Je Sung
  • Patent number: 7670863
    Abstract: Provided is a method of fabricating a complementary metal oxide silicon image sensor. The method includes: applying a passivation oxide and a passivation nitride after forming a pad; selectively removing the passivation nitride in a pad region and a pixel region by a photolithography process, and performing a first cleaning process; performing a hydrogen anneal process; opening the pad by removing the passivation oxide in the pad region and performing a second cleaning process; applying a pad protective layer; performing a color filter array process, a planarization process, and a microlens process after the applying of the pad protective layer; and removing the pad protective layer in the pad region.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 2, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Jin Han Kim
  • Patent number: 7670899
    Abstract: A MIM capacitor includes a lower electrode disposed on a semiconductor substrate. A dielectric layer is disposed on the lower electrode to completely cover an exposed surface of the lower electrode. An upper electrode is disposed on the dielectric layer. A method for forming a MIM capacitor includes forming a lower electrode on a semiconductor substrate. A dielectric layer and an upper metal layer are formed on an entire surface of the substrate to cover the lower electrode. The dielectric and upper metal layers are patterned on the lower electrode.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: March 2, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Ki Min Lee
  • Patent number: 7670926
    Abstract: A method for forming shallow trench isolation in a semiconductor device. The method includes forming a trench in a predetermined depth on a semiconductor substrate, filling the trench with a first filing oxide, injecting an impurity into a portion of the first filling oxide inside the trench, removing the portion of the first filling oxide by wet etching, and filling the trench with a second filling oxide.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: March 2, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Wan Shick Kim
  • Patent number: 7670868
    Abstract: Disclosed is a method of fabricating a CMOS (Complementary Metal Oxide Silicon) image sensor. The method includes the steps of: forming a device protective layer and a metal interconnection on a substrate formed with a light receiving device; forming an inner micro-lens on the metal interconnection; coating an interlayer dielectric layer on the inner micro-lens and then forming a color filter; and forming an outer micro-lens including a planarization layer and photoresist on the color filter. The inner micro-lens is formed by depositing the outer layer on dome-shaped photoresist. The curvature radius of the inner micro-lens is precisely and uniformly maintained and the inner micro-lens is easily formed while improving the light efficiency. Since the fabrication process for the CMOS image sensor is simplified, the product yield is improved and the manufacturing cost is reduced.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 2, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Ki Sik Im
  • Patent number: 7667749
    Abstract: An image sensor and a method for fabricating the same are disclosed, in which a partial light-shielding layer is additionally arranged on a path of a particular colored light, for example, a red colored light that may cause excessive permeation, to partially shield the corresponding red colored light in a state that red colored light, green colored light and blue colored light are permeated into each photodiode of a semiconductor substrate, so that the permeation position of the red colored light coincides with that of the green colored light and the blue colored light each having the wavelength shorter than that of the red colored light, thereby normally generating optical charges caused by the red colored light in an effective depletion area of the photodiode like those caused by the green colored light and the blue colored light.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: February 23, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Chang Hun Han
  • Patent number: 7667291
    Abstract: In an FPGA of a semiconductor device and a method of forming the FPGA, a first pattern having a voltage selectable conductivity is formed to connect first vias of the semiconductor device in parallel.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: February 23, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Kee Yong Kim
  • Patent number: 7667246
    Abstract: A method of forming a field programmable gate array (FPGA) structure of a semiconductor device capable of reducing manufacturing cost through simpler processes includes forming a contact parallel connection structure in which contacts connected to a gate electrode and a source/drain by way of a first amorphous silicon pattern are connected in parallel with each other; forming a via parallel connection structure in which vias, connected to neighboring metal interconnections by a second amorphous silicon pattern, are connected in parallel with each other at a position not overlapping the contact parallel connection structure; and forming a connection means for connecting the contact parallel connection structure to the via parallel connection structure.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: February 23, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Kee Yong Kim
  • Patent number: 7662695
    Abstract: Disclosed are a vertical-type capacitor and a formation method thereof. The capacitor includes a first electrode wall and a second electrode wall perpendicular to a semiconductor substrate, and at least one dielectric layer on the substrate to insulate the first electrode wall from the second electrode wall. The first electrode wall includes a plurality of first conductive layers and a plurality of first contacts, the plurality of first conductive layers being interconnected with each other by each of the plurality of first contacts. The second electrode wall includes a plurality of second conductive layers and a plurality of second contacts, the plurality of second conductive layers being interconnected with each other by each of the plurality of second contacts.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: February 16, 2010
    Assignee: Dongbu Electronics Co. Ltd.
    Inventor: Chee Hong Choi
  • Patent number: 7662714
    Abstract: A method for forming a metal line of a semiconductor device uses a low dielectric constant material as an interlayer dielectric layer and treats a surface of the interlayer dielectric layer with plasma to prevent moisture and ammonia from being adsorbed in the low dielectric constant material. The method for forming a metal line of a semiconductor device includes forming a lower metal line layer on a semiconductor substrate, sequentially forming an etch stop layer and an interlayer dielectric layer on an entire surface including the lower metal line layer, forming a plasma layer by treating a surface of the interlayer dielectric layer with plasma, forming a photoresist pattern on the plasma layer, forming a via hole using the photoresist pattern as a mask to open the lower metal line layer, and forming a via contact by burying a metal material in the via hole.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: February 16, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Cheon Man Shim
  • Patent number: 7659565
    Abstract: A CMOS image sensor and a method for fabricating the same are provided. A CMOS image sensor includes: a plurality of photodiodes a predetermined distance apart on a semiconductor substrate; an insulation layer on an entire surface of the semiconductor substrate; a passivation layer on the insulation layer; a plurality of color filters on the passivation layer corresponding to the photodiodes; a planarization layer on an entire surface of the semiconductor substrate including the color filters; and a microlens on the planarization layer corresponding to each of the color filters and having a bottom diameter of 2.5 to 3.0 ?m.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: February 9, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Cho Eun Sang
  • Patent number: 7660164
    Abstract: A method is provided, which can improve the efficiency of device design by estimating the variation of threshold voltage according to the pulse widths of applied voltage for a semiconductor device in mass product.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: February 9, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Sang Hun Kwak
  • Patent number: 7659133
    Abstract: Disclosed is a method for manufacturing a CMOS image sensor, capable of preventing dopants implanted with high energy from penetrating into a lower part of a gate electrode when a photodiode is formed, thereby preventing current leakage of a transistor and variation of a threshold voltage. The method includes the steps of forming a gate electrode on a transistor area of a first conductive type semiconductor substrate including a photodiode area and the transistor area, forming a salicide layer on the gate electrode, and implanting second conductive type dopants for forming a photodiode in a photodiode area of the semiconductor substrate.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: February 9, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Sung Moo Kim
  • Patent number: 7655362
    Abstract: Masks for semiconductor devices and methods of forming masks of semiconductor devices are provided which are capable of improving line resolution. A disclosed mask includes: a first mask pattern disposed on a first side of the mask. The first mask pattern includes light-blocking patterns and light-blocking fine auxiliary patterns within a light-transmitting region. The mask also includes a second mask pattern disposed on a second side of the mask. The second mask pattern includes light-transmitting fine auxiliary patterns within a light-blocking region. The light-transmitting fine auxiliary patterns are disposed at positions corresponding to the light-blocking fine auxiliary patterns to facilitate an overlapping exposing process. The second mask has the opposite tone of the first mask, and the second mask is disposed at a position horizontally-translated from a position of the first mask. Accordingly, pattern bridge regions in repeated patterns of a poly-cell transistor device can be selectively removed.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: February 2, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Jun Seok Lee
  • Patent number: 7655526
    Abstract: Disclosed is a method for manufacturing a semiconductor device. The method for manufacturing a semiconductor device includes the steps of forming a gate electrode on a semiconductor substrate, forming a drift area in the semiconductor substrate by implanting a dopant using the gate electrode as a mask, forming a sidewall spacer at sides of the gate electrode, and forming a source/drain area in the semiconductor substrate by implanting a dopant using the gate electrode and the sidewall spacer as a mask.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: February 2, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Choul Joo Ko
  • Patent number: 7651903
    Abstract: Disclosed are a CMOS image sensor and a method for manufacturing the same, for reducing or preventing damage to a photodiode and improving a pixel design margin to achieve scale down of a pixel. The CMOS image sensor includes an isolation layer in a semiconductor substrate, a gate electrode crossing a part of the isolation layer and the active area, a photodiode area in the active area, an insulating sidewall spacer on sides of the gate electrode, a metal silicide layer on the gate electrode and at least part of a surface of the photodiode area adjacent to the gate electrode, a metal layer electrically connecting the gate electrode to the photodiode area, and a dielectric layer on the entire surface of semiconductor substrate.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: January 26, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: In Gyun Jeon