Color Imager (epo) Patents (Class 257/E27.134)
  • Patent number: 7977677
    Abstract: In a thin-film transistor (TFT) substrate, a gate insulating layer is disposed on a gate electrode electrically connected to a gate line. A semiconductor layer is disposed on the gate insulating layer. A source electrode is electrically connected to a data line that intersects the gate line. A drain electrode faces the source electrode and defines a channel area of a semiconductor layer. An organic layer is disposed on the data line and has a first opening exposing the channel area. An inorganic insulating layer is disposed on the organic layer. A pixel electrode is disposed on the inorganic insulating layer and electrically connected to the drain electrode. The inorganic insulating layer covers the first opening, and thickness of the inorganic insulating layer is substantially uniform.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hye-Young Ryu, Jang-Soo Kim, Su-Hyoung Kang
  • Patent number: 7973378
    Abstract: Provided is a solid-state imaging device that realizes sensitivity improvement while maintaining flare prevention effect even when miniaturization of cell is advanced. The solid-state imaging device according to the present invention includes: light receiving units formed on a semiconductor substrate; an antireflection film arranged above the semiconductor substrate, except above the light receiving units; and microlenses arranged above the light receiving units, in which the antireflection film is formed at a position equal to or higher than a position of the microlenses.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: July 5, 2011
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Sakoh, Yoshiaki Nishi, Yasuo Takeuchi
  • Publication number: 20110155891
    Abstract: A semiconductor device includes: a photoelectric conversion layer; a continuous or discontinuous cylindrical metal microstructure embedded in the photoelectric conversion layer; and a dielectric film with which an inner side surface and an outer side surface of the metal microstructure are coated.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 30, 2011
    Applicant: SONY CORPORATION
    Inventor: Keiichi Yamamoto
  • Patent number: 7968366
    Abstract: An image sensor and method of manufacturing the same are provided. According to an embodiment, the image sensor comprises: a circuit including an interconnection on a substrate; a lower electrode on the interconnection; a separated intrinsic layer on the lower electrode; a second conductive type conduction layer on the separated intrinsic layer; and an upper electrode on the second conductive type conduction layer. The separated intrinsic layer can have an inwardly sloping sidewall to focus light incident the photodiode for the unit pixel.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: June 28, 2011
    Assignee: Dongbu Hitek Co., Ltd.
    Inventor: Ji Ho Hong
  • Publication number: 20110140225
    Abstract: In a first interlevel insulating film, a first region which is made of the first interlevel insulating film and in which first wiring films are not provided is formed to be located above a first light receiving part of the plurality of light receiving parts, and a second region which is made of the first interlevel insulating film and in which the first wiring films are not provided is formed to be located above a second light receiving part of the plurality of light receiving parts which is adjacent to the first light receiving part. A space between ones of the first wiring films with the first region interposed therebetween is larger than a space between ones of the first wiring films with the second region interposed therebetween.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 16, 2011
    Inventor: Masafumi TSUTSUI
  • Patent number: 7956392
    Abstract: An imaging element comprises: an optical element substrate part in which the imaging element generates a signal charge by photo-electrically converting an incident light applied from one surface side of the optical element substrate part to read the signal charge from the other surface side of the optical element substrate part and picks up an image; and a CMOS circuit substrate part connected to the other surface side of the optical element substrate part so as to transfer the signal charge generated in the photoelectric conversion layer, wherein the optical element substrate part comprises: a photoelectric conversion layer to generate the signal charge by photo-electrically converting the incident light; a charge storage part that stores the signal charge; and a reading transistor that reads the signal charge stored in the charge storage part.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: June 7, 2011
    Assignee: Fujifilm Corporation
    Inventor: Shinji Uya
  • Publication number: 20110127410
    Abstract: An optical sensor that is a transistor which includes a gate electrode including a semiconductor material where the carrier concentration is 1.0×1014/cm3 to 1.0×1017/cm3, an active layer including a semiconductor layer to form a channel by carriers of the same type as the gate electrode, a source electrode, a drain electrode, and a gate insulating film, wherein intensity of irradiated light is detected by a change in a value of current flowing between the source electrode and the drain electrode when the light is irradiated onto a depletion layer formed in the gate electrode; an optical sensor array, an optical sensor driving method, and an optical sensor array driving method are provided.
    Type: Application
    Filed: November 23, 2010
    Publication date: June 2, 2011
    Inventors: Atsushi Tanaka, Takeshi Hama
  • Patent number: 7952158
    Abstract: An elevated photosensor for image sensors and methods of forming the photosensor. The photosensor may have light sensors having indentation features including, but not limited to, v-shaped, u-shaped, or other shaped features. Light sensors having such an indentation feature can redirect incident light that is not absorbed by one portion of the photosensor to another portion of the photosensor for additional absorption. In addition, the elevated photosensors reduce the size of the pixel cells while reducing leakage, image lag, and barrier problems.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: May 31, 2011
    Assignee: Micron Technology, Inc.
    Inventor: Salman Akram
  • Patent number: 7919351
    Abstract: A CMOS image sensor and a method for fabricating the same for preventing contamination and peeling of an array of micro lenses. The CMOS image sensor includes a plurality of photodiodes formed on and/or over a substrate, an insulating film formed on and/or over an entire surface of the substrate including the photodiodes, color filter layers formed on and/or over the insulating film, a first oxide film formed on and/or over the color filter layers, an ion-rich oxide film formed by injecting silicon ions into the first oxide film, a second oxide film formed on and/or over the ion-rich oxide film, and a micro lens pattern formed corresponding to the photodiodes by patterning the second oxide film.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: April 5, 2011
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Jong-Taek Hwang
  • Patent number: 7919798
    Abstract: An image sensor and fabricating method thereof for preventing cross-talk between neighboring pixels by providing at least three light-shield walls combining to extend vertically above a lateral periphery of a photodiode for deflecting light from a microlens array towards the photodiode.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: April 5, 2011
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Sun-Chan Lee
  • Publication number: 20110057279
    Abstract: An anti-reflective image sensor and method of fabrication are provided, the sensor including a substrate; first color sensing pixels disposed in the substrate; second color sensing pixels disposed in the substrate; third color sensing pixels disposed in the substrate; a first layer disposed directly on the first, second and third color sensing pixels; a second layer disposed directly on the first layer overlying the first, second and third color sensing pixels; and a third layer disposed directly on portions of the second layer overlying at least one of the first or second color sensing pixels, wherein the first layer has a first refractive index, the second layer has a second refractive index greater than the first refractive index, and the third layer has a third refractive index greater than the second refractive index.
    Type: Application
    Filed: July 14, 2010
    Publication date: March 10, 2011
    Inventors: Jeong-Ho Lee, Sang-Il Jung
  • Publication number: 20110049333
    Abstract: According to one embodiment, a solid-state imaging device with a plurality of light-receiving layers for acquiring different color signals stacked one on top of another in the optical direction. Each of the light-receiving layers includes a photoelectric conversion part that receives light entering the back side of the layer and generates signal charges and a read transistor that is provided on the front side of the layer and reads the signal charges generated at the photoelectric conversion part. A semiconductor layer is stacked via an insulating film on the front side of the top layer of the plurality of light-receiving layers. At the semiconductor layer, there is provided a signal scanning circuit which processes a signal read by each of the read transistors and outputs a different color signal from each of the light-receiving layers to the outside.
    Type: Application
    Filed: August 23, 2010
    Publication date: March 3, 2011
    Inventor: Hirofumi YAMASHITA
  • Patent number: 7888266
    Abstract: A complementary metal-oxide-semiconductor (CMOS) optical sensor structure includes a pixel containing a charge collection well of a same semiconductor material as a semiconductor layer in a semiconductor substrate and at least another pixel containing another charge collection well of a different semiconductor material than the material of the semiconductor layer. The charge collections wells have different band gaps, and consequently, generate charge carriers in response to light having different wavelengths. The CMOS sensor structure thus includes at least two pixels responding to light of different wavelengths, enabling wavelength-sensitive, or color-sensitive, capture of an optical data.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: February 15, 2011
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Toshiharu Furukawa, Robert Robison, William R. Tonti
  • Patent number: 7884435
    Abstract: A pattern mask for forming a microlens includes mask pattern parts alternately arranged and corresponding to pixel regions in a matrix, wherein neighboring corners of the mask pattern parts overlap with each other.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: February 8, 2011
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Sung Ho Jun
  • Patent number: 7880257
    Abstract: An image sensor includes a semiconductor layer, and first and second photoelectric converting units including first and second impurity regions in the semiconductor layer that are spaced apart from each other and that are at about an equal depth in the semiconductor layer, each of the impurity regions including an upper region and a lower region. A width of the lower region of the first impurity region may be larger than a width of the lower region of the second impurity region, and widths of upper regions of the first and second impurity regions are equal.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: February 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yun-ki Lee
  • Publication number: 20110006350
    Abstract: An integrated structure of MEMS device and CIS device and a fabricating method thereof includes providing a substrate having a CIS region and a MEMS region defined therein with a plurality of CIS devices positioned in the CIS region; performing a multilevel interconnect process to form a multilevel interconnect structure in the CIS region and the MEMS region and a micro-machined mesh metal in the MEMS region on a front side of the substrate; performing a first etching process to form a chamber in MEMS region in the front side of the substrate; forming a first mask pattern and a second mask pattern respectively in the CIS region and the MEMS region on a back side of the substrate; and performing a second etching process to form a plurality of vent holes connecting to the chamber on the back side of the substrate through the second mask pattern.
    Type: Application
    Filed: September 23, 2010
    Publication date: January 13, 2011
    Inventor: Hui-Shen Shih
  • Patent number: 7868366
    Abstract: An image sensor is disclosed including a second semiconductor substrate including a metal interconnection and a second interlayer dielectric; a second via penetrating the second interlayer dielectric so that the second via is connected to the metal interconnection; a first semiconductor substrate on the second interlayer dielectric, the first semiconductor substrate having a unit pixel; a pre-metal dielectric on the first semiconductor substrate; a first via penetrating the pre-metal dielectric and the first semiconductor substrate, the first via being electrically connected to the second via; a first interlayer dielectric on the pre-metal dielectric including the first via; a metal interconnection on the first interlayer dielectric and connected to the first via and the unit pixel; a conductive barrier layer on the metal interconnection; and a color filter and a microlens on the first interlayer dielectric in each unit pixel.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: January 11, 2011
    Assignee: Dongbu Hitek Co., Ltd.
    Inventor: Min Hyung Lee
  • Patent number: 7863633
    Abstract: The solid-state imaging device of the present invention includes: photodiodes which are two-dimensionally arranged; light condensers each of which condenses light and is provided in a position to correspond to two of the photodiodes which are adjacent to each other; and separating units each of which separates the light entering through the light condensers into first light having a wavelength within a predetermined range, and second light having a wavelength out of the predetermined range, and is provided in a position to correspond to one of the light condensers.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: January 4, 2011
    Assignee: PANASONIC Corporation
    Inventor: Yoshiaki Kato
  • Patent number: 7859072
    Abstract: An image sensor and a fabricating method thereof are provided. The image sensor includes a plurality of pixels disposed in an active region and dummy pixels disposed in a peripheral region. An interlayer dielectric layer has a first thickness in the active region and a second thickness thinner than the first thickness in the peripheral region. Color filters are disposed in the active region, and a light blocking member is disposed in the peripheral region. There is substantially no step difference between the color filters and the light blocking member.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: December 28, 2010
    Assignee: Dongbu Hitek Co., Ltd.
    Inventor: Chang Hun Han
  • Patent number: 7851826
    Abstract: A method manufactures semiconductor chips each comprising a component implanted in the semiconductor. The method includes collectively implanting components onto a front face of a semiconductor wafer and fixing the a plate of a transparent material onto the front face of the wafer. Fixing the plate of transparent material is preceded by a step of depositing, on the front face of the wafer, at least one layer of polymer material forming an optical filter. Application is particularly to the manufacturing of imagers.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: December 14, 2010
    Assignee: STMicroelectronics Rousset SAS
    Inventor: Caroline Hernandez
  • Publication number: 20100276736
    Abstract: Methods and apparatus for producing a CMOS image sensor result in a plurality of photo sensitive layers, each layer including: a glass or glass ceramic substrate having first and second spaced-apart surfaces; a semiconductor layer disposed on the first surface of the glass or glass ceramic substrate; and a plurality of pixel structures formed in the semiconductor layer, each pixel structure including a plurality of semiconductor islands, at least one island operating as a color sensitive photo-detector sensitive to a respective range of light wavelengths, wherein the plurality of photo sensitive layers are stacked one on the other, such that incident light enters the CMOS image sensor through the first spaced-apart surface of the glass or glass ceramic substrate of one of the plurality of photo sensitive layers, and subsequently passes into further photo sensitive layers if one or more wavelengths of the incident light are sufficiently long.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Inventors: Mark Frederick Bocko, Zeljko Ignjatovic, Carlo Anthony Kosik Williams, Donnell Thaddeus Walton, ChuanChe Wang, James Matthew Zavislan
  • Patent number: 7816713
    Abstract: Provided is a CMOS image sensor that uses thiophene derivatives. The CMOS image sensor includes first through third photoelectric conversion units vertically and sequentially stacked on a semiconductor substrate. The first photoelectric conversion unit detects blue light and comprises a first electrode, a second electrode, and a p-type thiophene derivative layer between the first electrode and the second electrode.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: October 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-sik Kim, Sang-cheol Park, Young-jun Park, O-hyun Kwon, Jung-gyu Nam, Hye-suk Jo
  • Patent number: 7816169
    Abstract: Disclosed is an ordered microelectronic fabrication sequence in which color filters are formed by conformal deposition directly onto a photodetector array of a CCD, CID, or CMOS imaging device to create a concave-up pixel surface, and, overlayed with a high transmittance planarizing film of specified index of refraction and physical properties which optimize light collection to the photodiode without additional conventional microlenses. The optically flat top surface serves to encapsulate and protect the imager from chemical and thermal cleaning treatment damage, minimizes topographical underlayer variations which would aberrate or cause reflection losses of images formed on non-planar surfaces, and, obviates residual particle inclusions induced during dicing and packaging. A CCD imager is formed by photolithographically patterning a planar-array of photodiodes on a semiconductor substrate. The photodiode array is provided with metal photoshields, passivated, and, color filters are formed thereon.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: October 19, 2010
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yang-Tung Fan, Chiou-Shian Peng, Cheng-Yu Chu, Shih-Jane Lin, Yen-Ming Chen, Fu-Jier Fan, Kuo-Wei Li
  • Patent number: 7803652
    Abstract: Embodiments relate to a semiconductor device for an image sensor method of fabricating a semiconductor device for an image sensor having a micro lens. According to embodiments, the method may include forming a lower insulating film having cavities on a substrate, forming an upper insulating film having cavities on the lower insulating film, forming a protective insulating film having metal films on the upper insulating film, forming a number of color filters having a specified pattern on the protective insulating film, forming a planarization layer having a specified curvature on the color filters to bury the color filters in the planarization layer, and forming a number of micro lenses on the planarization layer at respective positions corresponding to the color filters.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 28, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Dong-Bin Park
  • Patent number: 7800148
    Abstract: A CMOS active pixel sensor includes a silicon-on-insulator substrate having a silicon substrate with an insulator layer formed thereon and a top silicon layer formed on the insulator layer. A stacked pixel sensor cell includes a bottom photodiode fabricated on the silicon substrate, for sensing light of a longest wavelength; a middle photodiode fabricated on the silicon substrate, for sensing light of a medium wavelength, which is stacked above the bottom photodiode; and a top photodiode fabricated on the top silicon layer, for sensing light of a shorter wavelength, which is stacked above the middle and bottom photodiodes. Pixel transistor sets are fabricated on the top silicon layer and are associated with each pixel sensor cell by electrical connections which extend between each of the photodiodes and respective pixel transistor(s). CMOS control circuitry is fabricated adjacent to an array of active pixel sensor cells and electrically connected thereto.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: September 21, 2010
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Jong-Jan Lee, Sheng Teng Hsu, Douglas James Tweet, Jer-Shen Maa
  • Patent number: 7768088
    Abstract: In a solid-state imaging device including an on-chip microlens and a light-receiving part to receive incident light condensed by the on-chip microlens, an optical waveguide extending from an undersurface part of the microlens to the light-receiving part and for guiding the incident light condensed by the microlens to the light-receiving part is formed to be integrated with the microlens. By this, since the incident light condensed by the microlens is incident on the light-receiving part with little loss, the sensitivity is improved.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: August 3, 2010
    Assignee: FUJIFILM Corporation
    Inventor: Toshiaki Fukunaga
  • Patent number: 7755123
    Abstract: Method, apparatus, and/or system providing a backside illuminated imaging device. A non-planar metallic or otherwise reflective layer is provided in an image pixel cell at the frontside of the device substrate to capture radiation passing through the device substrate. The non-planar surface is formed to be capable of reflecting substantially all such radiation back to a photosensor located in the same pixel cell.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: July 13, 2010
    Assignee: Aptina Imaging Corporation
    Inventors: Thomas E. Dungan, Chintamani Palsule
  • Patent number: 7755120
    Abstract: A semiconductor device is disclosed. The semiconductor device provides a substrate comprising an image sensor region and a circuit region, wherein the circuit region comprises a pad region and a connecting region. A multilayer interconnect structure is formed on the substrate, wherein the multilayer interconnect structure comprises a plurality of dielectric layers, a plurality of lower wirings at the pad region and the connecting region, and a top wiring on at least one of the lower wirings at the connecting region. A passivation layer is formed over the multilayer interconnect structure. A pad structure is formed through the passivation layer and at least one of the dielectric layers on and electrically connected to at least one of the lower wirings at the pad region.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: July 13, 2010
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Chin-Min Lin
  • Patent number: 7745857
    Abstract: The object of the invention is to provide a semiconductor device that can form photodiodes that do not short circuit, without damage that causes leakage, despite formation of the opening part, and its manufacturing method. The second semiconductor layer (12, 16) of the second conductivity type is formed on the main surface of the first semiconductor layer (10, 11) of the first conductivity type. Element-separating regions (13, 14, 15, 17) formed at least on the second semiconductor layer separate the device into the regions of plural photodiodes (PD1-PD4). Conductive layer 18 is formed on the second semiconductor layer 16 in a pattern that is divided for each of the photodiodes and is connected to the second semiconductor layer 16 along the outer periphery with respect to all of the plural photodiodes. Insulation layer (19, 21) is formed on the entire surface to cover conductive layer 18.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: June 29, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Yohichi Okumura, Hiroyuki Tomomatsu
  • Publication number: 20100140731
    Abstract: An image sensor includes a semiconductor layer, and first and second photoelectric converting units including first and second impurity regions in the semiconductor layer that are spaced apart from each other and that are at about an equal depth in the semiconductor layer, each of the impurity regions including an upper region and a lower region. A width of the lower region of the first impurity region may be larger than a width of the lower region of the second impurity region, and widths of upper regions of the first and second impurity regions are equal.
    Type: Application
    Filed: February 3, 2010
    Publication date: June 10, 2010
    Inventor: Yun-Ki Lee
  • Publication number: 20100144388
    Abstract: A photodetector including a photodiode formed in a semiconductor substrate and a waveguide element formed of a block of a high-index material extending above the photodiode in a thick layer of a dielectric superposed to the substrate, the thick layer being at least as a majority formed of silicon oxide and the block being formed of a polymer of the general formula R1R2R3SiOSiR1R2R3 where R1, R2, and R3 are any carbonaceous or metal substituents and where one of R1, R2, or R3 is a carbonaceous substituent having at least four carbon atoms and/or at least one oxygen atom.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 10, 2010
    Applicant: STMICROELECTRONICS S.A.
    Inventors: CYRIL FELLOUS, NICOLAS HOTELLIER, CHRISTOPHE AUMONT, FRANCOIS ROY
  • Patent number: 7732746
    Abstract: Provided is an image sensor including an overcoating layer and at least two micro lenses formed on the overcoating layer. The image sensor is characterized in that the overcoating layer positioned below a clearance between the micro lenses is etched such that curved surfaces of the micro lenses extend to the etched overcoating layer, and a contamination in the bonding pad can be prevented.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: June 8, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Joon Hwang
  • Patent number: 7723763
    Abstract: The invention discloses the color photodetector with multi-primary is introduced to detect the incident light with specific wavelength regimes. Combining the surface plasma resonance effect with photodetector can be utilized to enhance the photo-responsivity of the demanded light wavelength and also can substitute the conventionally color filter and infrared cutter. In this invention, a novel integrated photo-detector that can be realized in commercial CMOS process for achieving low-cost consideration.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 25, 2010
    Assignee: National Taiwan University
    Inventors: Hsuen-Li Chen, Kuan-Sheng Lai, Wen-Yun Wang
  • Patent number: 7705378
    Abstract: A CMOS image sensor and fabricating method thereof can enhance the quality of the image sensor by preventing unnecessary diffused reflection of light by providing an opaque filter layer next to a microlens. The CMOS image sensor includes a photodiode, an insulating interlayer, a metal line, a device protecting layer, a microlens on the device protecting layer and overlapped with the photodiode, and an opaque layer pattern on the device protecting layer next to the microlens.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: April 27, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Chang Eun Lee
  • Patent number: 7687837
    Abstract: An image sensor includes a substrate having an active pixel sensor region defined therein, a plurality of first conductivity type photodiodes formed in the active pixel sensor region and a first conductivity-type first deep well formed in the active pixel sensor region in a location which does not include the plurality of the first conductivity-type photodiodes. Moreover, the first deep well is electrically connected to a positive voltage.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: March 30, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Hoon Park, Jae-Ho Song, Won-Je Park, Jin-Hyeong Park, Jeong-Hoon Bae, Jung-Ho Park
  • Patent number: 7687305
    Abstract: An image sensor include an interlayer dielectric layer formed over a semiconductor substrate; a color filter array formed over the interlayer dielectric layer; a planarization layer formed over the color filter; and a microlens array having a continuous, gapless shape formed over the planarization layer and spatially corresponding to the color filter array. The microlens array is composed of a first dielectric layer and a second dielectric layer formed over the first dielectric layer.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: March 30, 2010
    Assignee: Dongbu HiTek Co., Ltd
    Inventor: Sang-Wook Ryu
  • Patent number: 7682863
    Abstract: A Complementary Metal Oxide Semiconductor (CMOS) image sensor includes a red photodiode formed in an first epitaxial layer, an isolation layer formed with a contact region left in a partial area of the red photodiode, a green photodiode formed in a surface of the isolation layer, a contact formed in the contact region at a predetermined spatial distance from the green photodiode, a second epitaxial layer formed on the first epitaxial layer in which the green photodiode is formed, a plurality of plugs formed in the second epitaxial layer and electrically connected to the green photodiode and the contact, a device isolation film formed in a surface of the second epitaxial layer, a blue photodiode formed in a surface of the second epitaxial layer above the green photodiode, and a well region formed in the second epitaxial layer inside the plug.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: March 23, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Hyuk Woo
  • Patent number: 7675102
    Abstract: Embodiments relate to a method of manufacturing an image sensor. According to embodiments, the method may include preparing a semiconductor substrate formed with a plurality of photodiodes, forming an interlayer dielectric layer on the semiconductor substrate, forming a color filter layer on the interlayer dielectric layer, forming a planar layer on the color filter layer, and forming micro-lenses coated with fat-soluble polymer on the planar layer. Since the micro-lens is uniformly formed due to the fat-soluble polymer coated on the micro-lens, the photo-sensitivity and color reproduction of the image sensor are improved, resulting in the high-quality image sensor.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 9, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Sang Sik Kim
  • Patent number: 7675098
    Abstract: A complementary metal oxide semiconductor (CMOS) image sensor including a semiconductor substrate having an inclined groove with an inclined surface and a light reception surface perpendicular to the semiconductor substrate, and a device forming area adjacent the light reception surface. A reflection film selectively formed on and/or over the inclined surface, a plurality of photodiodes substantially perpendicular to the surface of the substrate; and at least one MOS transistor formed on the surface of the device forming area.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: March 9, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Jeong Su Park
  • Patent number: 7655545
    Abstract: An image sensor includes a first photodiode formed in a semiconductor substrate at a depth reachable by red light, a second photodiode disposed on or over the first photodiode in the semiconductor substrate at a depth reachable by blue light, a third photodiode disposed adjacent to the second photodiode, a plug connected to the first photodiode, transistor structures on the semiconductor substrate and electrically connected with the first, second and third diodes, an insulating layer covering the transistor structures, and microlenses on the insulating layer.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 2, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Joon Hwang
  • Patent number: 7652291
    Abstract: A flat panel display that can prevent a voltage drop of a driving power and, at the same time, minimizes the characteristic reduction of electronic devices located in a circuit region where various circuit devices are located includes: a substrate; an insulating film arranged on the substrate; a pixel region including at least one light emitting diode, the pixel region arranged on the insulating film and adapted to display an image; a circuit region arranged on the insulating film and including electronic devices adapted to control signals supplied to the pixel region; and a conductive film interposed between the substrate and the insulating film in a region corresponding to the pixel region and electrically connected to one electrode of the light emitting diode.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: January 26, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Bon Koo, Jae-Kyeong Jeong, Hyun-Soo Shin, Yeon-Gon Mo
  • Patent number: 7646047
    Abstract: The solid-state imaging device includes at least a silicon layer formed with a photo sensor portion and a wiring layer formed on the front-surface side of the silicon layer. Light enters from the rear-surface side opposite to the front-surface side of the silicon layer and the thickness of the silicon layer 4 is 10 ?m or less. The photo sensor portion includes sensors configured to convert the light into signals representing an image.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: January 12, 2010
    Assignee: Sony Corporation
    Inventors: Yasushi Maruyama, Hideshi Abe, Hiroyuki Mori
  • Patent number: 7633134
    Abstract: A stratified photodiode for high resolution CMOS image sensors implemented with STI technology is provided. The photodiode includes a semi-conductive layer of a first conductivity type, multiple doping regions of a second conductivity type, multiple doping regions of the first conductivity type, and a pinning layer. The multiple doping regions of the second conductivity type are formed to different depths in the semi-conductive layer. The multiple doping regions of the first conductivity type are disposed between the multiple doping regions of the second conductivity type and form multiple junction capacitances without full depletion. In particular, the stratified doping arrangement allows the photodiode to have a small size, high charge storage capacity, low dark current, and low operation voltages.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: December 15, 2009
    Inventor: Jaroslav Hynecek
  • Patent number: 7619267
    Abstract: A solid-state imaging device comprising a plurality of pixels arrayed on a plane, wherein each of the pixels includes a semiconductor substrate and a plurality of photoelectric conversion devices, the plurality of photoelectric conversion devices include at least one on-substrate photoelectric conversion device stacked in an upper portion of the semiconductor substrate and at least one in-substrate photoelectric conversion device provided within the semiconductor substrate in a lower portion of the on-substrate photoelectric conversion device, and the plurality of photoelectric conversion devices have a different photoelectric conversion sensitivity from each other.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: November 17, 2009
    Assignee: FUJIFILM Corporation
    Inventor: Yasushi Araki
  • Patent number: 7608903
    Abstract: An imager pixel utilizing a silicon-on-insulator substrate, a photodiode in said substrate below the buried oxide, and a dual contact to said photodiode and methods of forming said imager pixel. The photodiode has an increased fill factor due to its increased size relative to the pixel.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: October 27, 2009
    Assignee: Aptina Imaging Corporation
    Inventor: Chandra Mouli
  • Patent number: 7608906
    Abstract: A multi-color photo sensor having a first photodiode with a first p-type layer and a first n-type layer, the first photodiode generates charge when illuminated with photons of a first wavelength range, a second photodiode with a second p-type layer and a second n-type layer, the second photodiode generates charge when illuminated with photons of a second wavelength range, and a readout integrated circuit electrically coupled to the first n-type layer of the first photodiode via a first metal interconnect and electrically coupled to the second n-type layer of the second photodiode via a second metal interconnect, the second metal interconnect traverses through the first photodiode to contact the second n-type layer of the second photodiode, the second metal interconnect is separated from the first photodiode by a first passivating insulator.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: October 27, 2009
    Assignee: Teledyne Licensing, LLC
    Inventor: William Tennant
  • Patent number: 7595217
    Abstract: A CMOS image sensor may include at least one of: a semiconductor substrate over which a photodiode and transistors are formed; passivation layers formed over a semiconductor substrate; and color PRs buried in trenches formed in the passivation layers and formed to be higher than the trenches.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: September 29, 2009
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Chee Hong Choi
  • Patent number: 7592654
    Abstract: CMOS image sensor having high sensitivity and low crosstalk, particularly at far-red to infrared wavelengths, and a method for fabricating a CMOS image sensor. A CMOS image sensor has a substrate, an epitaxial layer above the substrate, and a plurality of pixels extending into the epitaxial layer for receiving light. The image sensor also includes at least one of a horizontal barrier layer between the substrate and the epitaxial layer for preventing carriers generated in the substrate from moving to the epitaxial layer, and a plurality of lateral barrier layers between adjacent ones of the plurality of pixels for preventing lateral diffusion of electrons in the epitaxial layer.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: September 22, 2009
    Assignee: Aptina Imaging Corporation
    Inventors: Sandeep R. Bahl, Fredrick P. LaMaster, David W. Bigelow
  • Patent number: RE41340
    Abstract: A lock in pinned photodiode photodetector includes a plurality of output ports which are sequentially enabled. Each time when the output port is enabled is considered to be a different bin of time. A specified pattern is sent, and the output bins are investigated to look for that pattern. The time when the pattern is received indicates the time of flight. A CMOS active pixel image sensor includes a plurality of pinned photodiode photodetectors that share buffer transistors. In one configuration, the charge from two or more pinned photodiodes may be binned together and applied to the gate of a shared buffer transistor.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: May 18, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Vladimir Berezin, Alexander Krymski, Eric R. Fossum
  • Patent number: RE42292
    Abstract: A lock in pinned photodiode photodetector includes a plurality of output ports which are sequentially enabled. Each time when the output port is enabled is considered to be a different bin of time. A specified pattern is sent, and the output bins are investigated to look for that pattern. The time when the pattern is received indicates the time of flight. A CMOS active pixel image sensor includes a plurality of pinned photodiode photodetectors that use a common output transistor. In one configuration, the charge from two or more pinned photodiodes may be binned together and applied to the gate of an output transistor.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: April 12, 2011
    Assignee: Round Rock Research, LLC
    Inventors: Vladimir Berezin, Alexander I. Krymski, Eric R. Fossum