Light Responsive Or Combined With Light Responsive Device Patents (Class 257/290)
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Patent number: 7608858Abstract: A liquid crystal display is provided. A liquid crystal display includes a first substrate having color filters therewith; a second substrate having plural first signal lines and plural second signal lines thereon; plural first openings located at intersections of said first signal lines and plural of second signal lines; and plural supports located at said plural first openings and between said first substrate and said second substrate, and separating said first substrate from said second substrate.Type: GrantFiled: June 6, 2006Date of Patent: October 27, 2009Assignee: HannStar Display CorporationInventors: Chia-Te Liao, Tean-Sen Jen, Hsu-Ho Wu, Ming-Tien Lin, Te-Cheng Chung
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Publication number: 20090261392Abstract: A solid-state imaging device is provided. The solid-state imaging device includes a pixel section, a peripheral circuit section, a silicide blocking layer formed in the pixel section except for part or whole of an area above an isolation portion in the pixel section, and a metal-silicided transistor formed in the peripheral circuit section.Type: ApplicationFiled: April 17, 2009Publication date: October 22, 2009Applicant: SONY CORPORATIONInventor: Keiji Tatani
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Publication number: 20090261441Abstract: An optical semiconductor device includes a light-receiving element on a semiconductor substrate of a first conductivity type, the light-receiving element including a light-receiving portion for converting incident light to an electrical current signal and performing a current amplification. The light-receiving portion includes: a semiconductor layer formed on the semiconductor substrate and having an impurity concentration substantially equal to or less than that of the semiconductor substrate; a first semiconductor region of a second conductivity type formed on the semiconductor layer and having an impurity concentration higher than that of the semiconductor layer; and a second semiconductor region of the first conductivity type selectively formed between the semiconductor substrate and the semiconductor layer and having an impurity concentration higher than those of the semiconductor substrate and the semiconductor layer.Type: ApplicationFiled: March 9, 2009Publication date: October 22, 2009Inventors: Hisatada Yasukawa, Hironari Takehara, Takaki Iwai
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Patent number: 7605440Abstract: A pixel having a well-isolated charge storage region or floating diffusion region may be obtained by providing a separate P-well around the storage region or floating diffusion region. In one embodiment, a separate P-well entirely encases the storage region and is in contact with the storage region. This P-well provides an electrical barrier for preventing electrons that are generated elsewhere in the pixel from contaminating the storage region. In another embodiment, a first separate P-well encases and is in contact with the storage region and a second separate P-well encases and is in contact with the floating diffusion region.Type: GrantFiled: April 7, 2006Date of Patent: October 20, 2009Assignee: Aptina Imaging CorporationInventor: Parker Altice
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Patent number: 7605854Abstract: The present invention includes operational amplifier for an active pixel sensor that detects optical energy and generates an analog output that is proportional to the optical energy. The active pixel sensor operates in a number of different modes including: signal integration mode, the reset integration mode, column reset mode, and column signal readout mode. Each mode causes the operational amplifier to see a different output load. Accordingly, the operational amplifier includes a variable feedback circuit to provide compensation that provides sufficient amplifier stability for each operating mode of the active pixel sensor. For instance, the operational amplifier includes a bank of feedback capacitors, one or more of which are selected based on the operating mode to provide sufficient phase margin for stability, but also considering gain and bandwidth requirements of the operating mode.Type: GrantFiled: July 29, 2005Date of Patent: October 20, 2009Assignee: Broadcom CorporationInventor: Esin Terzioglu
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Patent number: 7605902Abstract: There is provided a high quality liquid crystal panel having a thickness with high accuracy, which is designed, without using a particulate spacer, within a free range in accordance with characteristics of a used liquid crystal and a driving method, and is also provided a method of fabricating the same. The shape of a spacer for keeping a substrate interval constant is made such that it is a columnar shape, a radius R of curvature is 2 ?m or less, a height H is 0.5 ?m to 10 ?m, a diameter is 20 ?m or less, and an angle ? is 65° to 115°. By doing so, it is possible to prevent the lowering of an opening rate and the lowering of light leakage due to orientation disturbance.Type: GrantFiled: March 10, 2006Date of Patent: October 20, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu Hirakata, Yuugo Goto, Yuko Kobayashi, Shunpei Yamazaki
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Publication number: 20090256179Abstract: Embodiments relate to and image sensor. In embodiments, the image sensor may include a semiconductor substrate, a photodiode region, a gate electrode, a dummy gate, and an interlayer dielectric layer. The semiconductor substrate includes a field oxide layer. The photodiode region may be formed on the semiconductor substrate. The gate electrode may be formed on the semiconductor substrate. The dummy gate may be formed on the field oxide layer. The interlayer dielectric layer may be formed on one side of the dummy gate and includes an opening exposing the photodiode region.Type: ApplicationFiled: June 18, 2009Publication date: October 15, 2009Inventor: Young-Sik Kim
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Publication number: 20090242935Abstract: Methods and structures for monolithically integrating monocrystalline silicon and monocrystalline non-silicon materials and devices are provided. In one structure, a monolithically integrated semiconductor device structure comprises a silicon substrate and a first monocrystalline semiconductor layer disposed over the silicon substrate, wherein the first monocrystalline semiconductor layer has a lattice constant different from a lattice constant of relaxed silicon. The structure further includes an insulating layer disposed over the first monocrystalline semiconductor layer in a first region and a monocrystalline silicon layer disposed over the insulating layer in the first region. The structure includes at least one silicon-based photodetector comprising an active region including at least a portion of the monocrystalline silicon layer.Type: ApplicationFiled: November 1, 2006Publication date: October 1, 2009Applicant: Massachusetts Institute of TechnologyInventor: Eugene A. Fitzgerald
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Patent number: 7595519Abstract: An image sensor includes a first type semiconductor layer, a second type semiconductor layer and a first type well. The first type semiconductor layer is formed on a semiconductor substrate and includes a plurality of pixels which receive external light and convert optical charges into an electrical signal. The second type semiconductor layer is supplied with a drain voltage to have a potential different from that of the first semiconductor layer, and the first type well controls a power source voltage (VDD) using the drain voltage.Type: GrantFiled: March 6, 2007Date of Patent: September 29, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Jin Lee, Yo-Han Sun, Tae-Seok Oh, Sung-Jae Joo, Bum-Suk Kim, Yun-Ho Jang, Sae-Young Kim, Keun-Chan Yuk
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Patent number: 7592654Abstract: 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: GrantFiled: November 15, 2007Date of Patent: September 22, 2009Assignee: Aptina Imaging CorporationInventors: Sandeep R. Bahl, Fredrick P. LaMaster, David W. Bigelow
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Patent number: 7588956Abstract: Disclosed herein are a CMOS image sensor and a method of manufacturing the same, which can reduce current leakage through a plug connecting a photodiode and a transfer transistor to each other, and thereby provide low dark current levels. The CMOS image sensor includes a first epitaxial layer on or in a substrate. A photodiode PD is in the first epitaxial layer. A second epitaxial layer is on or in the substrate (e.g., on the first epitaxial layer). A shallow trench isolation region is in an area of the substrate. A plug is in the substrate (e.g., the second epitaxial layer) connected with the photodiode and spaced apart from the shallow trench isolation region. A transfer transistor having a gate electrode and source/drain regions is connected with the plug.Type: GrantFiled: October 25, 2006Date of Patent: September 15, 2009Assignee: Dongbu Electronics Co., Ltd.Inventor: Su Lim
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Patent number: 7589310Abstract: A sensor includes an array of substantially parallel wires, radiant energy sensitive material formed adjacent the array of parallel wires, and output units connected to each of the wires and constructed to provide an analog correlation vector output responsive to radiant energy incident on the sensor. The sensor is constructed as an image sensing device suitable for applications such as pattern recognition and image tracking.Type: GrantFiled: December 4, 2006Date of Patent: September 15, 2009Inventor: Blaise Laurent Mouttet
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Patent number: 7586139Abstract: An imaging sensor with an array of FET pixels and method of forming the imaging sensor. Each pixel is a semiconductor island, e.g., N-type silicon on a Silicon on insulator (SOI) wafer. FETs are formed in one photodiode electrode, e.g., a P-well cathode. A color filter may be attached to an opposite surface of island. A protective layer (e.g., glass or quartz) or window is fixed to the pixel array at the color filters. The image sensor may be illuminated from the backside with cell wiring above the cell. So, an optical signal passes through the protective layer is filtered by the color filters and selectively sensed by a corresponding photo-sensor.Type: GrantFiled: February 17, 2006Date of Patent: September 8, 2009Assignee: International Business Machines CorporationInventors: James W. Adkisson, Jeffrey P. Gambino, Mark D. Jaffe, Alan Loiseau, Richard J. Rassel
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Patent number: 7586169Abstract: An image sensor that can include a photodiode formed on one side of a substrate to receive light and then generate signal charges based on the light; and a transistor converting the signal charges into predetermined voltage and transmitting the voltage to an output terminal, whereby the transistor directly contact and surrounds the photodiode.Type: GrantFiled: December 21, 2007Date of Patent: September 8, 2009Assignee: Dongbu HiTek Co., Ltd.Inventor: Woo-Seok Hyun
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Patent number: 7586108Abstract: The invention relates to a radiation detector, a method of manufacturing a radiation detector and a lithographic apparatus comprising a radiation detector. The radiation detector has a radiation-sensitive surface. The radiation-sensitive surface is sensitive for radiation with a wavelength between 10-200 nm. The radiation detector has a silicon substrate, a dopant layer, a first electrode and a second electrode. The silicon substrate is provided in a surface area at a first surface side with doping profile of a certain conduction type. The dopant layer is provided on the first surface side of the silicon substrate. The dopant layer has a first layer of dopant material and a second layer. The second layer is a diffusion layer which is in contact with the surface area at the first surface side of the silicon substrate. The first electrode is connected to dopant layer. The second electrode is connected to the Silicon substrate.Type: GrantFiled: June 25, 2007Date of Patent: September 8, 2009Assignee: ASML Netherlands B.V.Inventors: Stoyan Nihtianov, Arie Johan Van Der Sijs, Bearrach Moest, Petrus Wilhelmus Josephus Maria Kemper, Marc Antonius Maria Haast, Gerardus Wilhelmus Petrus Baas, Lis Karen Nanver, Francesco Sarubbi, Antonius Andreas Johannes Schuwer, Gregory Micha Gommeren, Martijn Pot, Thomas Ludovicus Maria Scholtes
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Patent number: 7582897Abstract: Disclosed is an organic semiconductor composition containing particles and an organic semiconducting compound combining with the particles.Type: GrantFiled: May 12, 2006Date of Patent: September 1, 2009Assignee: Konica Minolta Holdings, Inc.Inventors: Katsura Hirai, Mitsuhiro Fukuda
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Patent number: 7579858Abstract: A semiconductor device is disclosed.Type: GrantFiled: September 5, 2008Date of Patent: August 25, 2009Assignee: Texas Instruments IncorporatedInventor: Yoichi Okumura
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Patent number: 7579639Abstract: A CMOS image sensor that includes a semiconductor substrate with a plurality of photodiodes arranged at fixed intervals on the semiconductor substrate. A light-shielding layer partially overlaping the plurality of photodiodes and an insulating interlayer are formed on an entire surface of the semiconductor substrate including the plurality of photodiodes. A color filter layer having a plurality of color filters separated by a predetermined gap is formed on the insulating interlayer and a planarization layer is formed over the entire surface of the semiconductor substrate including the color filter layer. A plurality of microlenses are formed on the planarization layer in correspondence with the color filters of the color filter layer, wherein an additional structural layer, disposed between the color filter layer and the insulating interlayer, is provided to close a predetermined gap between the color filters of the color filter layer.Type: GrantFiled: December 21, 2005Date of Patent: August 25, 2009Assignee: Dongbu Electronics Co., Ltd.Inventor: Meng An Jung
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Patent number: 7579638Abstract: A solid-state image pickup device is provided in which a pixel forming region 4 and a peripheral circuit forming region 20 are formed on the same semiconductor substrate, a first element isolation portion is formed by an element isolation layer 21 in which an insulating layer is buried into a semiconductor substrate 10 in the peripheral circuit forming region 20, a second element isolation portion is composed of an element isolation region 11 formed within the semiconductor substrate 10 and an element isolation layer 12 projected in the upper direction from the semiconductor substrate 10 in the pixel forming region 4 and an element isolation layer 21 of the first element isolation portion and the element isolation layer 12 of the second element isolation portion contain the same insulating layers 17, 18 and 19. This solid-state image pickup device has a structure capable of suppressing a noise relative to a pixel signal and which can be microminiaturized in the peripheral circuit forming region.Type: GrantFiled: April 29, 2008Date of Patent: August 25, 2009Assignee: Sony CorporationInventor: Ikuo Yoshihara
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Publication number: 20090206328Abstract: Disclosed is a photosensitive composition having photosensitivity which is alkaline developable without containing a crosslinking agent. Specifically disclosed is a silicon-containing photosensitive composition characterized by containing a silicon-containing polymer including at least one polymer (A1) represented by the general formula (1) below, wherein at least one of R11-R1n is an H and the rest of them are organic groups, or at least one polymer (A1) and one polymer (A2) represented by the general formula (2) below, and a compound (B) which generates an acid or a base when irradiated with an active ray or radiation ray. (In the formula, at least one of R11-R1n represents an H, and n represents an integer of 1 or more.) (In the formula, R21-R2n represent atoms other than H or functional groups, and n represents an integer of 1 or more.Type: ApplicationFiled: December 28, 2005Publication date: August 20, 2009Applicants: SEKISUI CHEMICAL CO., LTD.Inventors: Kimihiro Matsukawa, Yukihito Matsuura, Kenichi Azuma, Shigeru Nakamura, Yasunari Kusaka
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Patent number: 7576362Abstract: To realize a high-performance liquid crystal display device or light-emitting element using a plastic film. A CPU is formed over a first glass substrate and then, separated from the first substrate. A pixel portion having a light-emitting element is formed over a second glass substrate, and then, separated from the second substrate. The both are bonded to each other. Therefore, high integration can be achieved. Further, in this case, the separated layer including the CPU serves also as a sealing layer of the light-emitting element.Type: GrantFiled: March 9, 2004Date of Patent: August 18, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Toru Takayama, Junya Maruyama, Yumiko Ohno
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Patent number: 7566876Abstract: Effective sensitivity of a photodetector of an image sensor is controlled by partitioning signal charge from incident photons, thus producing a manageable yield and a consequently higher, photon shot noise limited, signal to noise ratio than in the prior art, when imaging high flux rates of energetic photons or particles, such as produced by x-ray generators. The invention may be applied, for example, to an image sensor with a photosensitive layer coupled to a charge collection/readout structure, e.g. photoconductor or scintillator on CMOS array, or to an intrinsically sensitive charge collection/readout structure, e.g. deep active layer CMOS.Type: GrantFiled: August 31, 2006Date of Patent: July 28, 2009Assignee: E2V Technologies (UK) LimitedInventors: Ian Moody, Raymond Thomas Bell
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Patent number: 7566925Abstract: Image sensors and methods of fabricating the same are provided. The image sensor includes a blocking pattern disposed on photodiodes. The blocking pattern is formed of insulation material having a metal diffusion coefficient which is lower than a silicon oxide diffusion coefficient. Therefore, dark defects of the image sensor are reduced. In addition, the image sensor includes a color-ratio control layer. The color ratio control layer controls color ratios between the sensitivities to blue, green and red. As a result, color distinction of the picture that is embodied by the image sensor can be improved.Type: GrantFiled: September 9, 2005Date of Patent: July 28, 2009Assignee: Samsung Electronics, Co., Ltd.Inventors: Jae-Ho Song, Young-Hoon Park, Sang-Hak Shin
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Publication number: 20090179237Abstract: 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: ApplicationFiled: February 5, 2008Publication date: July 16, 2009Inventor: Chang Hun Han
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Publication number: 20090166684Abstract: A CMOS photodetector pixel formed of a substrate, an epitaxial layer above the substrate including a first region having the same polarity but a lower impurity concentration as that of the substrate, and a gate arrangement including a first gate that forms a charge accumulation region in the epitaxial layer when the gate is energized, wherein the charge accumulation region extends deeper toward the substrate than in conventional constructions. The epitaxial layer includes a shielding structure for absorbing electrons generated therein by photons impinging on the pixel, except electrons generated close to the charge accumulation region. The shielding structure may have opposite polarity from that of the substrate, including a first portion under the first gate, and a second portion extending upward from the first portion at the margin of the pixel. Alternatively, the shielding structure may have the same polarity as the substrate, but a lower impurity concentration.Type: ApplicationFiled: December 29, 2008Publication date: July 2, 2009Applicant: 3DV SYSTEMS LTD.Inventors: Giora Yahav, Thomas Reiner
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Publication number: 20090166687Abstract: An image sensor and a method for manufacturing the same may include a gate on a semiconductor substrate, a photodiode on the semiconductor substrate at a first side of the gate, a floating diffusion region on the semiconductor substrate at a second side of the gate, in which the second side is opposite to the first side, a channel under the gate, the channel connecting the photodiode with the floating diffusion region, and a barrier region under the photodiode.Type: ApplicationFiled: November 5, 2008Publication date: July 2, 2009Inventor: Jong Man KIM
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Patent number: 7554170Abstract: A photosensor includes a plurality of photosensitive regions including a first photosensitive region connected to a first voltage reference, and at least one additional photosensitive region. A signal collector is connected to the first photosensitive region. At least one switching device is for switching the at least one additional photosensitive region between the first voltage reference and a second voltage reference that is less than the first voltage reference, and for reversibly connecting the at least one additional photosensitive region to the signal collector so that the photosensor is variably responsive to different light levels.Type: GrantFiled: May 17, 2007Date of Patent: June 30, 2009Assignee: STMicroelectronics (Research & Development) LimitedInventor: Jeffrey Raynor
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Patent number: 7550798Abstract: Provided is a CMOS image sensor and method for manufacturing the same. The CMOS image sensor includes a semiconductor substrate, a gate electrode formed on the semiconductor substrate, a conductive diffusion region formed in a photodiode area of the semiconductor substrate, a floating diffusion region formed in a transistor region of the semiconductor substrate, and an oxide region formed in the semiconductor substrate below the floating diffusion region.Type: GrantFiled: October 11, 2006Date of Patent: June 23, 2009Assignee: Dongbu Electronics Co., Ltd.Inventor: Sung Ho Kwak
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Patent number: 7550813Abstract: A solid-state image pickup device comprises: a plurality of photoelectric converting films stacked via an insulating layer, the photoelectric converting films being above a semiconductor substrate in which a signal read circuit is formed, in which each of the photoelectric converting films is sandwiched between a pixel electrode film and an opposing electrode film, wherein the pixel electrode film of an upper one of the photoelectric converting films is connected to the signal read circuit by a longitudinal line passing through a lower one of the photoelectric converting films, and, in the longitudinal line, a passing portion which passes through the lower photoelectric converting film is formed by filling an opening with a conductive material, the opening being formed from a same plane of the pixel electrode film stacked on the lower photoelectric converting film to an upper end face of the insulating layer stacked above the photoelectric converting film.Type: GrantFiled: May 20, 2005Date of Patent: June 23, 2009Assignee: FujifilmCorporationInventor: Nobuo Suzuki
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Publication number: 20090146195Abstract: A system for detecting high speed noise in active pixel sensors includes a photodiode for receiving low levels of light, a reset transistor, an amplifier transistor, a row select transistor, and a high-speed analog-to-digital converter. The reset transistor gate receives a reset signal, and the reset transistor drain receives a reset voltage. The amplifier transistor gate is connected to the photodiode and the reset transistor's source. The amplifier transistor receives a supply voltage at the drain terminal. The row select transistor gate terminal receives a row select signal. The row select drain terminal is connected to the amplifier transistor source terminal. The high-speed analog-to-digital converter includes an analog input port connected to the row select transistor source and a digital output port capable of resolving high-speed excitation events received by the photodiode.Type: ApplicationFiled: December 10, 2007Publication date: June 11, 2009Inventor: Joshua Posamentier
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Patent number: 7545423Abstract: A CMOS image sensor with improved sensitivity includes a main pixel array region of an active pixel array region formed on a semiconductor substrate. A passivation layer is formed over the sensor, and it is at least partially removed from the main pixel array region, such that incident light being detected by the main pixel array does not pass through the passivation layer. Optical absorption and refraction caused by the material of the passivation layer are eliminated, resulting in an image sensor with improved optical sensitivity.Type: GrantFiled: January 27, 2005Date of Patent: June 9, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Young Hoon Park, Ki Hong Kim, Bum Suk Kim, Jeong Hoon Bae, Yu Jin Ahn, Jung Chak Ahn, Soo Cheol Lee, Yong Jei Lee, Sung In Hwang
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Patent number: 7538371Abstract: A CMOS image sensor integrated with 1T-SRAM is provided on a substrate having a pixel array part, a logic circuit part, and a memory part by adding only one photoresist process. There are a plurality of CMOS image sensor devices in the pixel array part, a logic circuit in the logic circuit part, and a plurality of 1T-SRAMs in the memory part, and each part is isolated by a plurality of STI regions. The 1T-SRAM includes a capacitor structure and a transistor. The capacitor structure includes a well region as a bottom capacitor plate, a capacitor dielectric layer, and a top capacitor plate formed on the substrate respectively. The transistor includes a gate dielectric layer, a gate, a drain, and a source continuous with and electrically connected to the well region.Type: GrantFiled: September 1, 2005Date of Patent: May 26, 2009Assignee: United Microelectronics Corp.Inventor: Jinsheng Yang
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Patent number: 7538405Abstract: Surface plasmons are used to increase an energy absorbing efficiency of a semiconductor sensor.Type: GrantFiled: January 13, 2006Date of Patent: May 26, 2009Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Russell W. Gruhlke, Charles E. Potter
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Patent number: 7535042Abstract: A pixel cell with controlled leakage is formed by modifying the location and gate profile of a high dynamic range (HDR) transistor. The HDR transistor may have the gate profile of a transfer gate or a reset gate. The HDR transistor may be located on a side of the photodiode that is the same, opposite to, or perpendicular to the transfer gate. The leakage through the HDR transistor may be controlled by modifying the photodiode implants around the transistor. The photodiode implants at the HDR transistor may be placed similarly to the implants at the transfer gate. However, when the photodiode implants are moved away from the HDR transistor, leakage is reduced. When the photodiode implants are moved farther under the HDR transistor, leakage is increased to the extent desirable. The leakage through the HDR transistor may also be controlled by applying a voltage across the transistor.Type: GrantFiled: July 1, 2004Date of Patent: May 19, 2009Assignee: Aptina Imaging CorporationInventor: Howard E. Rhodes
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Patent number: 7531374Abstract: A CMOS image sensor (CIS) process is described. A semiconductor substrate is provided, and then a gate dielectric layer, a gate material layer and a thickening layer are sequentially formed on the substrate, wherein the thickening layer includes at least a hard mask layer. The thickening layer is defined to form a transfer-gate pattern, and then the transfer-gate pattern is used as an etching mask to pattern the gate material layer and form a transfer gate. Ion implantation is then conducted to form a PN diode in the substrate with the transfer-gate pattern and the transfer gate as a mask.Type: GrantFiled: September 7, 2006Date of Patent: May 12, 2009Assignee: United Microelectronics Corp.Inventor: Ching-Hung Kao
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Patent number: 7531855Abstract: A multi-chip device includes LED sensors for sensing light separated by a predetermined interval in a wafer, LEDs for emitting light formed over the wafer respectively corresponding to the LED sensors, a driving circuit formed between the LEDs over the wafer, an insulating film over the wafer, and trenches in the insulating film exposign the LEDs.Type: GrantFiled: September 22, 2006Date of Patent: May 12, 2009Assignee: Hynix Semiconductor Inc.Inventor: Hee Bok Kang
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Patent number: 7531856Abstract: A display apparatus that includes: a plurality of light-emitting devices disposed on a substrate with an accumulation of, in this or inverse order, a light transmissive electrode layer, a functional layer including a light-emitting layer, and an opposing electrode layer; and a color conversion layer that is provided on a side of the light transmissive electrode layer for any of the light-emitting devices, and applies color conversion to an emitted light generated by the light-emitting layer for the light-emitting device. In the display apparatus, the light-emitting devices each have a reflective surface on a position where the light-emitting layer is sandwiched with the light transmissive electrode layer, and an optical distance between the reflective surface and the light-emitting layer varies by the light-emitting devices depending on provision of the color conversion layer.Type: GrantFiled: December 5, 2006Date of Patent: May 12, 2009Assignee: Sony CorporationInventor: Isamu Kobori
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Patent number: 7525131Abstract: Disclosed is a photoelectric surface including: a first group III nitride semiconductor layer that produces photoelectrons according to incidence of ultraviolet rays; and a second group III nitride semiconductor layer provided adjacent to the first group III nitride semiconductor layer and made of a thin-film crystal having c-axis orientation in a thickness direction, the second group III nitride semiconductor layer having an Al composition higher than that of the first group III nitride semiconductor layer.Type: GrantFiled: August 29, 2006Date of Patent: April 28, 2009Assignees: National University Corporation Shizuoka University, Hamamatsu Photonics K.K.Inventors: Masatomo Sumiya, Shunro Fuke, Tokuaki Nihashi, Minoru Hagino
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Publication number: 20090101946Abstract: A CIS and a method for manufacturing the same are provided. The CIS includes an interlayer insulation layer formed on a substrate having a photodiode and a transistor formed thereon; a plurality of color filters formed on the interlayer insulation layer and spaced a predetermined interval apart from each other; a metal sidewall formed to fill the predetermined interval between the plurality of the color filters; and a microlens formed on each of the plurality of color filters.Type: ApplicationFiled: December 31, 2008Publication date: April 23, 2009Inventor: JOON HWANG
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Patent number: 7514284Abstract: Image sensors and methods of fabricating the same are provided. The image sensor includes a blocking pattern disposed on photodiodes. The blocking pattern is formed of insulation material having a metal diffusion coefficient which is lower than a silicon oxide diffusion coefficient. Therefore, dark defects of the image sensor are reduced. In addition, the image sensor includes a color-ratio control layer. The color ratio control layer controls color ratios between the sensitivities to blue, green and red. As a result, color distinction of the picture that is embodied by the image sensor can be improved.Type: GrantFiled: September 9, 2005Date of Patent: April 7, 2009Assignee: Samsung Electronics Co., LtdInventors: Jae-Ho Song, Young-Hoon Park, Sang-Hak Shin
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Patent number: 7511323Abstract: The present invention, in the various exemplary embodiments, provides a RGB color filter array. The red, green and blue pixel cells are arranged in a honeycomb pattern. The honeycomb layout provides the space to vary the size of pixel cells of an individual color so that, for example, the photosensor of blue pixels can be made larger than that of the red or green pixels. In another aspect of the invention, depicted in the exemplary embodiments, the honeycomb structure can also be implemented with each pixel row having a same color of pixel cells which can simplify can conversion in the readout circuits. In another aspect of the invention, the RGB honeycomb pixel array may be implemented using a shared pixel cell architecture.Type: GrantFiled: August 11, 2005Date of Patent: March 31, 2009Assignee: Aptina Imaging CorporationInventor: Jeffrey A. McKee
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Publication number: 20090078972Abstract: A sensor thin film transistor includes a gate electrode, a gate insulation layer formed on the gate electrode, a semiconductor layer having a portion positioned above the gate electrode and on a side of the gate insulation layer opposite the gate electrode, and a source electrode and drain electrode having spaced apart ends positioned on the semiconductor layer, wherein the sensor thin film transistor is operative such that a signal-to-noise ratio is equal to or greater than about 200 when the gate-off voltage applied to the gate electrode is equal to or less than about 0V.Type: ApplicationFiled: August 29, 2008Publication date: March 26, 2009Inventors: Tae-Hyung HWANG, Hyung-Il JEON, Nikulin IVAN
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Patent number: 7498621Abstract: A two-dimensional, temporally modulated electromagnetic wavefield, preferably in the ultraviolet, visible or infrared spectral range, can be locally detected and demodulated with one or more sensing elements. Each sensing element consists of a resistive, transparent electrode (E) on top of an insulated layer (O) that is produced over a semiconducting substrate whose surface is electrically kept in depletion. The electrode (E) is connected with two or more contacts (C1; C2) to a number of clock voltages that are operated synchronously with the frequency of the modulated wavefield. In the electrode and in the semiconducting substrate lateral electric fields are created that separate and transport photogenerated charge pairs in the semiconductor to respective diffusions (D1; D2) close to the contacts (C1; C2).Type: GrantFiled: June 5, 2003Date of Patent: March 3, 2009Assignee: MESA Imaging AGInventor: Peter Seitz
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Patent number: 7498649Abstract: An electro-optical device includes an insulating substrate, a switching element, at least one PIN diode, and at least one reflector. The switching element includes a first polysilicon semiconductor layer formed on the insulating substrate, and a gate electrode formed between the insulating substrate and the first semiconductor layer. Each of the at least one PIN diode includes a second polysilicon semiconductor layer formed on the insulating substrate. The at least one reflector is formed in the same layer as the gate electrode and opposite the second semiconductor layer or layers of the at least one PIN diode.Type: GrantFiled: February 21, 2007Date of Patent: March 3, 2009Assignee: Epson Imaging Devices CorporationInventors: Shin Koide, Hiroko Muramatsu, Shin Fujita
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Patent number: 7493713Abstract: An image sensor and related method of fabrication are disclosed. The image sensor comprises a plurality of photoelectric conversion regions disposed in a predetermined field of a semiconductor substrate, color filters arranged on the photoelectric conversion regions, and a reflection protection structure disposed between the photoelectric conversion regions and the color filters. The reflection protection structure comprises portions having different thicknesses in relation to the color filters.Type: GrantFiled: January 19, 2006Date of Patent: February 24, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Young-Hoon Park
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Patent number: 7495271Abstract: In a solid-state image-sensing device, when image sensing is performed, in each pixel, MOS transistors T1 and T5 are turned on and a MOS transistor T6 is turned off so that a MOS transistor T2 operates in a subthreshold region. When resetting is preformed, in each pixel, the MOS transistors T1 and T5 are turned off and the MOS transistor T6 is turned on so that the gate voltage of the MOS transistor T2 is kept constant. In this state, the MOS transistor T2 is brought first into a conducting state and then, by turning a signal ?VPS to a high level, into a cut-off state. This permits a signal proportional to the threshold value of the MOS transistor T2 to be output as compensation data.Type: GrantFiled: August 3, 2007Date of Patent: February 24, 2009Assignee: Minolta Co., Ltd.Inventors: Yoshio Hagihara, Kenji Takada
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Patent number: 7491991Abstract: A method for fabricating a CMOS image sensor is provided. The method includes: forming a gate electrode with a gate insulating layer interposed on a transistor region of a semiconductor substrate having an active region defined by a photo diode and a transistor region; forming a first impurity region of a first conductive type at a transistor region at one side of the gate electrode; forming a second impurity region of a first conductive type at a photo diode region at other side of the gate electrode; forming sidewall insulating layers at both sides of the gate electrode; forming a third impurity region of a first conductive type at one side of a gate electrode where the first impurity region is formed; and forming a fourth impurity region of a second conductive type at the gate electrode, the photodiode region and the transistor region by implanting impurity ions of a second conductive type on the entire surface of the semiconductor substrate.Type: GrantFiled: June 7, 2006Date of Patent: February 17, 2009Assignee: Dongbu Electronics Co., Ltd.Inventor: In Gyun Jeon
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Patent number: 7492026Abstract: A light sensor located above an integrated circuit including a lower electrode, a heavily-doped amorphous silicon layer of a first conductivity type, and a lightly-doped amorphous silicon layer of a second conductivity type. The lightly-doped amorphous silicon layer rests on a planar surface at least above and in the vicinity of the lower electrode.Type: GrantFiled: December 30, 2005Date of Patent: February 17, 2009Assignee: STMicroelectronics S.A.Inventors: Danielle Thomas, Maurice Rivoire
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Patent number: 7491989Abstract: An imaging member includes a substrate, a charge transport layer, a charge generator layer, and a charge transporting or photoconductive overcoating layer.Type: GrantFiled: July 28, 2005Date of Patent: February 17, 2009Assignee: Xerox CorporationInventors: Rafik O. Loutfy, Zoran D. Popovic, John F. Graham, Timothy P. Bender
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Patent number: 7488615Abstract: A method of manufacturing a solid-state imaging device, wherein the solid-state imaging device comprising: a semiconductor substrate; a plurality of photodiodes that are formed on a surface of the semiconductor substrate so as to be arranged in an array form; and a light shielding film, provided on or above the surface of the semiconductor substrate, that has a plurality of openings in correspondence with respective ones of the photodiodes, the method comprising: laminating, on the surface of the semiconductor substrate, lamination layers including the light shielding film; opening through holes in the lamination layers, respectively, at positions corresponding to the photodiodes to form the openings in the light shielding film; forming a low refractive index material layer with a predetermined thickness isotropically on a side wall surface of each of the through holes; and filling a remaining hole portion of each of the through holes with a high refractive index material to form an optical waveguide for guidType: GrantFiled: January 23, 2007Date of Patent: February 10, 2009Assignee: Fujifilm CorporationInventor: Shinji Uya