Having Structure To Improve Output Signal (e.g., Exposure Control Structure) Patents (Class 257/229)
  • Patent number: 8911668
    Abstract: A Lab On a Chip (LOC) has a Sample Preparation Module (SPM) coupled to a sample inlet, a microchannel coupled to the SPM, and an optic module optically proximate to the microchannel. The optic module holds multiple lenses, each of which has a different effective focal length, such that all fields of focus within the microchannel are covered as objects suspended within the liquid sample pass through the microchannel.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: December 16, 2014
    Assignee: International Business Machines Corporation
    Inventors: Timothy Durniak, Robert R. Friedlander, James R. Kraemer
  • Patent number: 8901618
    Abstract: A solid-state imaging device, including a semiconductor substrate; a photoelectric conversion region in the semiconductor substrate that generates charges in response to light incident thereon; an electric charge holding region in the semiconductor substrate and capable of holding electric charges accumulated in the photoelectric conversion region until the electric charges are read out from the electric charge holding region; a transfer gate that effects transfer of electric charges generated in the photoelectric conversion region to the electric charge holding region; a light blocking film over an upper surface of the transfer gate; and an insulating layer over the substrate and between the semiconductor substrate and the light blocking film, wherein, a portion of the insulating layer over the photoelectric conversion region is more thinly formed than the insulating layer not over the photoelectric conversion region.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 2, 2014
    Assignee: Sony Corporation
    Inventors: Taketo Fukuro, Jun Okuno
  • Patent number: 8902341
    Abstract: A solid-state imaging device with unit pixels which have a photoelectric conversion element, an electric charge transferring/accumulating unit with multiple levels able to transfer electric charge generated in the photoelectric conversion element and accumulate the electric charge, and an electric charge detection unit that holds the electric charge transferred from the photoelectric conversion element, where, after resetting the photoelectric conversion element, all unit pixels simultaneously transfer signal electric charges, which are generated in the photoelectric conversion element during continuous exposure times of which each has a different duration, to the electric charge transferring/accumulating units and accumulate the signal electric charges in the different respective electric charge transferring/accumulating units, and in units of one or more pixels, the signal electric charges is transferred to the electric charge detecting unit and a plurality of signals which respectively corresponds to the p
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: December 2, 2014
    Assignee: Sony Corporation
    Inventor: Keiji Mabuchi
  • Publication number: 20140346572
    Abstract: A pixel cell includes a photodiode, a storage transistor, a transfer transistor and an output transistor disposed in a semiconductor substrate. The transfer transistor selectively transfers image charge accumulated in the photodiode from the photodiode to the storage transistor. The output transistor selectively transfers the image charge from the storage transistor to a readout node. A first isolation fence is disposed over the semiconductor substrate separating a transfer gate of the transfer transistor from a storage gate of the storage transistor. A second isolation fence is disposed over the semiconductor substrate separating the storage gate from an output gate of the output transistor. Thicknesses of the first and second isolation fences are substantially equal to spacing distances between the transfer gate and the storage gate, and between the storage gate and the output gate, respectively.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 27, 2014
    Inventors: Gang Chen, Duli Mao, Hsin-Chih Tai
  • Publication number: 20140327052
    Abstract: Disclosed is a solid-state imaging device which includes a pixel section, a peripheral circuit section, a first isolation region formed with a STI structure on a semiconductor substrate in the peripheral circuit section, and a second isolation region formed with the STI structure on the semiconductor substrate in the pixel section. The portion of the second isolation region buried into the semiconductor substrate is shallower than the portion buried into the semiconductor substrate of the first isolation region, and the height of the upper face of the second isolation region is equal to that of the first isolation region. A method of producing the solid-state imaging device and an electronic device provided with the solid-state imaging devices are also disclosed.
    Type: Application
    Filed: April 3, 2014
    Publication date: November 6, 2014
    Applicant: Sony Corporation
    Inventors: Keiji Tatani, Takuji Matsumoto, Yasushi Tateshita, Fumihiko Koga, Takashi Nagano, Takahiro Toyoshima, Tetsuji Yamaguchi, Keiichi Nakazawa, Naoyuki Miyashita, Yoshihiko Nagahama
  • Patent number: 8878264
    Abstract: A global shutter pixel cell includes a serially connected anti-blooming (AB) transistor, storage gate (SG) transistor and transfer (TX) transistor. The serially connected transistors are coupled between a voltage supply and a floating diffusion (FD) region. A terminal of a photodiode (PD) is connected between respective terminals of the AB and the SG transistors; and a terminal of a storage node (SN) diode is connected between respective terminals of the SG and the TX transistors. A portion of the PD region is extended under the SN region, so that the PD region shields the SN region from stray photons. Furthermore, a metallic layer, disposed above the SN region, is extended downwardly toward the SN region, so that the metallic layer shields the SN region from stray photons. Moreover, a top surface of the metallic layer is coated with an anti-reflective layer.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 4, 2014
    Assignee: Aptina Imaging Corporation
    Inventors: Sergey Velichko, Jingyi Bai
  • Publication number: 20140312391
    Abstract: An image sensor includes a first sub-gate in a recessed region in a substrate; a second sub-gate on the first sub-gate in contact with an upper surface of the substrate; and an element isolation region in the substrate spaced apart from the first sub-gate. A lower surface of the second sub-gate is wider than an upper surface of the first sub-gate, and a portion of the element isolation region is spaced apart from the second sub-gate by a first distance in a first direction.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 23, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Hisanori Ihara
  • Patent number: 8860814
    Abstract: A solid-state image sensor according to the present invention includes a number of photosensitive cells 2b, 2c that are arranged in between the first surface 30a of a semiconductor layer 30 and its second surface 30b, which is opposite to the first surface 30a and which receives incoming light. As viewed from the photosensitive cells 2b, 2c, a reflecting portion 3a is arranged on the same side as the first surface 30a in order to reflect an infrared ray that has been transmitted through the photosensitive cell 2c and make it incident on one of the photosensitive cells 2b, 2c. As a result, the intensities of infrared rays to be converted photoelectrically by the photosensitive cells 2b, 2c will be different from each other. And by calculating the difference between the photoelectrically converted signals supplied from the photosensitive cells 2b, 2c, the infrared ray component received by each photosensitive cell can be obtained.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: October 14, 2014
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Masao Hiramoto, Yoshiaki Sugitani
  • Publication number: 20140299747
    Abstract: A solid-state imaging device includes: multiple pixels. Each pixel is arranged at a surface layer portion of a semiconductor substrate, and includes: a photoelectric conversion portion that converts light incident into an electric charge; a charge holding portion that stores the electric charge, and is arranged in the semiconductor substrate; a multiplication gate electrode that is capacitively coupled with the charge holding portion, and is arranged on the semiconductor substrate via an insulation film; and a charge barrier portion that is arranged between the charge holding portion and the insulation film, and has a higher impurity concentration than the semiconductor substrate.
    Type: Application
    Filed: February 6, 2013
    Publication date: October 9, 2014
    Inventors: Yoshihide Tachino, Takahisa Yamashiro, Yukiaki Yogo
  • Publication number: 20140300786
    Abstract: An image sensor including a first semiconductor region of a first conductivity type that is arranged in a substrate, a second semiconductor region of a second conductivity type that is arranged in the first semiconductor region to form a charge accumulation region. The second semiconductor region includes a plurality of portions arranged in a direction along a surface of the substrate. A potential barrier is formed between the plurality of portions. The second semiconductor region is wholly depleted by expansion of a depletion region from the first semiconductor region to the second semiconductor region. A finally-depleted portion to be finally depleted, of the second semiconductor region, is depleted by the expansion of the depletion region from a portion of the first semiconductor region, located in a lateral direction of the finally-depleted portion.
    Type: Application
    Filed: January 9, 2013
    Publication date: October 9, 2014
    Inventors: Akira Okita, Masahiro Kobayashi
  • Patent number: 8847286
    Abstract: An image sensor includes a substrate having opposite first and second sides, a multilayer structure on the first side of the substrate, and a photo-sensitive element on the second side of the substrate. The photo-sensitive element is configured to receive light that is incident upon the first side and transmitted through the multilayer structure and the substrate. The multilayer structure includes first and second light transmitting layers. The first light transmitting layer is sandwiched between the substrate and the second light transmitting layer. The first light transmitting layer has a refractive index that is from 60% to 90% of a refractive index of the substrate. The second light transmitting layer has a refractive index that is lower than the refractive index of the first light transmitting layer and is from 40% to 70% of the refractive index of the substrate.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: September 30, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shiu-Ko Jangjian, Kei-Wei Chen, Szu-An Wu, Ying-Lang Wang
  • Publication number: 20140252420
    Abstract: An image sensor device can include device isolation regions in a substrate and a photoelectric conversion portion in the substrate that can be between the device isolation regions. A transfer gate of the image sensor device, can be located over, and be electrically coupled to, the photoelectric conversion portion. The transfer gate can include at least two protrusions, that are separated from the device isolation regions, and that protrude toward the photoelectric conversion portion.
    Type: Application
    Filed: December 23, 2013
    Publication date: September 11, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Shinwook Yi, Hyoungsoo Ko, Kyungho Lee, Youngwoo Jung, Heegeun Jeong
  • Patent number: 8796742
    Abstract: An alternating stack of two different semiconductor materials is patterned to include two pad regions and nanowire regions. A semiconductor material is laterally etched selective to another semiconductor material to form a nanomesh including suspended semiconductor nanowires. Gate dielectrics, a gate electrode, and a gate cap dielectric are formed over the nanomesh. A dielectric spacer is formed around the gate electrode. The semiconductor materials in the two pad regions and physically exposed portions of the nanomesh are removed employing the dielectric spacer and the gate cap dielectric as an etch mask. A source region and a drain region are epitaxially grown from end surfaces of the nanomesh.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 5, 2014
    Assignee: International Business Machines Corporation
    Inventors: Josephine B. Chang, Paul Chang, Isaac Lauer, Jeffrey W. Sleight
  • Publication number: 20140197464
    Abstract: A CMOS image sensor has a photodiode including first and second impurity layers sequentially formed on a substrate, an isolation layer on the second impurity layer, and a transfer gate structure through the second impurity layer. The transfer gate structure contacts a top surface of the first impurity layer and a portion of the second impurity layer and includes a bottom surface having a step shape.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 17, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hisanori IHARA
  • Patent number: 8772844
    Abstract: Capacitance between a detection capacitor and a reset transistor is the largest among the capacitances between the detection capacitor and transistors placed around the detection capacitor. In order to reduce this capacitance, it is effective to reduce the channel width of the reset transistor. It is possible to reduce the effective channel width by distributing, in the vicinity of the channel of the reset transistor and the boundary line between an active region and an element isolation region, ions which enhance the generation of carriers of an opposite polarity to the channel.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: July 8, 2014
    Assignee: Wi Lan, Inc.
    Inventors: Motonari Katsuno, Ryouhei Miyagawa, Masayuki Matsunaga
  • Publication number: 20140167118
    Abstract: The present disclosure provides an image sensor semiconductor device. The semiconductor device includes a semiconductor substrate having a first type of dopant; a semiconductor layer having a second type of dopant different from the first type of dopant and disposed on the semiconductor substrate; and an image sensor formed in the semiconductor layer.
    Type: Application
    Filed: February 20, 2014
    Publication date: June 19, 2014
    Applicant: Taiwan Semiconductor Manufacturing Company Ltd.
    Inventors: Chung-Wei Chang, Han-Chi Liu, Chun-Yao Ko, Shou-Gwo Wuu
  • Patent number: 8735946
    Abstract: Embodiments of the invention relate to substrates comprising a base wafer, an insulating layer and a top semiconductor layer, wherein the insulating layer comprises at least a zone wherein a density of charges is in absolute value higher than 1010 charges/cm2. The invention also relates to processes for making such substrates.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: May 27, 2014
    Assignee: Soitec
    Inventors: Mohamad A Shaheen, Frederic Allibert, Gweltaz Gaudin, Fabrice Lallement, Didier Landru, Karine Landry, Carlos Mazure
  • Publication number: 20140097476
    Abstract: A solid-state imaging apparatus includes a charge accumulation unit, a signal voltage detection unit, a transfer transistor, and a pinning layer. The charge accumulation unit accumulates photoelectrically converted charges, and is formed on a silicon substrate. The signal voltage detection unit detects signal voltage corresponding to the charges accumulated in the charge accumulation unit, and is formed on the silicon substrate. The transfer transistor transfers the charges accumulated in the charge accumulation unit to the signal voltage detection unit, and is formed on the silicon substrate. The pinning layer pins a surface of the silicon substrate so that the surface is filled with electron holes, and is formed directly on the silicon substrate at a gate end at which a gate electrode of the transfer transistor and the charge accumulation unit come into contact with each other on the silicon substrate.
    Type: Application
    Filed: September 18, 2013
    Publication date: April 10, 2014
    Applicant: Sony Corporation
    Inventor: Yoshiaki Kikuchi
  • Patent number: 8670059
    Abstract: A photoelectric conversion device comprises a p-type region, an n-type buried layer formed under the p-type region, an element isolation region, and a channel stop region which covers at least a lower portion of the element isolation region, wherein the p-type region and the buried layer form a photodiode, and a diffusion coefficient of a dominant impurity of the channel stop region is smaller than a diffusion coefficient of a dominant impurity of the buried layer.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: March 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hajime Ikeda, Yoshihisa Kabaya, Takanori Watanabe, Takeshi Ichikawa, Mineo Shimotsusa
  • Publication number: 20140048852
    Abstract: Disclosed herein is a solid-state imaging device including: an opto-electrical conversion section provided inside a semiconductor substrate to receive incident light coming from one surface of the semiconductor substrate; a wiring layer provided on the other surface of the semiconductor substrate; and a light absorption layer provided between the other surface of the semiconductor substrate and the wiring layer to absorb transmitted light passing through the opto-electrical conversion section as part of the incident light.
    Type: Application
    Filed: October 24, 2013
    Publication date: February 20, 2014
    Applicant: Sony Corporation
    Inventor: Syogo Kurogi
  • Patent number: 8653566
    Abstract: The present invention provides a solid-state imaging device in which high S/N is achieved. A solid-state imaging device includes a photodiode, a transfer transistor, a floating diffusion, a floating diffusion wiring, an amplifying transistor, a power line, and first output signal lines, in which the first output signal lines are formed one on each side of the floating diffusion wiring in a layer having the floating diffusion wiring formed on a semiconductor substrate, and the power line is formed above the floating diffusion wiring.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: February 18, 2014
    Assignee: Panasonic Corporation
    Inventor: Hirohisa Ohtsuki
  • Patent number: 8643064
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: February 4, 2014
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Publication number: 20140027617
    Abstract: A solid-state imaging apparatus includes a pixel array in which pixels are arranged in a matrix. Each pixel includes a photoelectric conversion element, a transfer transistor, an amplifier transistor, and a reset transistor. The pixel array an effective pixel part in which light enters the photoelectric conversion element and which is configured to output a video signal, an optical black pixel part in which the photoelectric conversion element is shielded from light and which is configured to output a reference signal, and a dummy pixel part. Of pixels connected to the same signal output line, effective pixels of the effective pixel part are configured such that a first potential is supplied from the reset transistor to a floating diffusion part, and clipping pixels of the dummy pixel part are configured such that a second potential is supplied from the reset transistor to the floating diffusion part.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 30, 2014
    Applicant: PANASONIC CORPORATION
    Inventor: Hiroyuki AMIKAWA
  • Publication number: 20140027640
    Abstract: An image sensor system has an input from a photosensor, receiving photogenerated electricity, and coupling said photogenerated electricity to a first photodiode to integrate the photogenerated electricity. The photodiode can be a pinned diode, configured to act integrate charge.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 30, 2014
    Applicant: FORZA SILICON CORPORATION
    Inventor: Guang Yang
  • Publication number: 20140014816
    Abstract: There is provided an imaging element including a contact portion that connects first and second regions accumulating a charge to each other, a first transfer portion that is formed between the first region and the contact portion, and a second transfer portion that is formed between the second region and the contact portion.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 16, 2014
    Inventor: Takeshi Takeda
  • Publication number: 20130327924
    Abstract: There is provided a solid-state image sensor including unit pixels each including a photoelectric transducer which generates a charge corresponding to an amount of incident light and accumulates the charge therein, a first transfer gate which transfers the charge accumulated in the photoelectric transducer, a charge holding region in which the charge transferred from the photoelectric transducer by the first transfer gate is held, a second transfer gate which transfers the charge held in the charge holding region, a floating diffusion region in which the charge transferred from the charge holding region by the second transfer gate is held to be read out as a signal, and a reset section which resets the charge in the floating diffusion region. The first transfer gate and the reset section are connected to an identical drive section through a drive line shared thereby, and are simultaneously driven by the drive section.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 12, 2013
    Applicant: Sony Corporation
    Inventor: Takashi Machida
  • Patent number: 8575662
    Abstract: Each pixel of a solid state imaging device comprises a first semiconductor layer formed on a substrate, having a first-conductive type; a second semiconductor layer formed thereon, having a second-conductivity type; a third semiconductor layer formed in the upper side of the second semiconductor layer, having the first-conductivity type; a fourth semiconductor layer formed in the outer side of the third semiconductor layer, having the second-conductivity type; a gate conductor layer formed on the lower side of the second semiconductor layer via an insulating film; and a fifth semiconductor layer formed on the top surfaces of the second semiconductor layer and third semiconductor layer, having the second-conductivity type, wherein the fifth semiconductor layer and fourth semiconductor layer are connected to each other, and at least the third semiconductor layer, upper region of the second semiconductor layer, fourth semiconductor layer, and fifth semiconductor layer are formed in an island.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: November 5, 2013
    Assignee: Unisantis Electronics Singapore Pte Ltd.
    Inventors: Fujio Masuoka, Nozomu Harada
  • Patent number: 8558234
    Abstract: Highly efficient, low energy, low light level imagers and photodetectors are provided. In particular, a novel class of Della-Doped Electron Bombarded Array (DDEBA) photodetectors that will reduce the size, mass, power, complexity, and cost of conventional imaging systems while improving performance by using a thinned imager that is capable of detecting low-energy electrons, has high gain, and is of low noise.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: October 15, 2013
    Assignee: California Institute of Technology
    Inventors: Shouleh Nikzad, Chris Martin, Michael E. Hoenk
  • Patent number: 8558286
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: October 15, 2013
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Publication number: 20130264468
    Abstract: Disclosed herein is a solid-state imaging apparatus including: a semiconductor base; a photodiode created on the semiconductor base and used for carrying out photoelectric conversion; a pixel section provided with pixels each having the photodiode; a first wire created by being electrically connected to the semiconductor base for the pixel section through a contact section and being extended in a first direction to the outside of the pixel section; a second wire made from a wiring layer different from the first wire and created by being extended in a second direction different from the first direction to the outside of the pixel section; and a contact section for electrically connecting the first and second wires to each other.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 10, 2013
    Applicant: Sony Corporation
    Inventors: Mikiko Kobayashi, Kazuyoshi Yamashita
  • Patent number: 8546853
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: October 1, 2013
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Publication number: 20130248938
    Abstract: A novel photo-sensitive element for electronic imaging purposes and, in this context, is particularly suited for time-of-flight 3D imaging sensor pixels. The element enables charge-domain photo-detection and processing based on a single gate architecture. Certain regions for n and p-doping implants of the gates are defined. This kind of single gate architecture enables low noise photon detection and high-speed charge transport methods at the same time. A strong benefit compared to known pixel structures is that no special processing steps are required such as overlapping gate structures or very high-ohmic poly-silicon deposition. In this sense, the element relaxes the processing methods so that this device may be integrated by the use of standard CMOS technology for example. Regarding time-of-flight pixel technology, a major challenge is the generation of lateral electric fields. The element allows the generation of fringing fields and large lateral electric fields.
    Type: Application
    Filed: March 20, 2013
    Publication date: September 26, 2013
    Inventors: Bernhard Buettgen, Michael Lehmann, Bruno Vaello
  • Patent number: 8530312
    Abstract: Vertical devices and methods of forming the same are provided. One example method of forming a vertical device can include forming a trench in a semiconductor structure, and partially filling the trench with an insulator material. A dielectric material is formed over the insulator material. The dielectric material is modified into a modified dielectric material having an etch rate greater than an etch rate of the insulator material. The modified dielectric material is removed from the trench via a wet etch.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: September 10, 2013
    Assignee: Micron Technology, Inc.
    Inventors: Andrea Filippini, Luca Ferrario, Marcello Mariani
  • Patent number: 8530991
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: September 10, 2013
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Patent number: 8530993
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 10, 2013
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Patent number: 8530940
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: September 10, 2013
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Patent number: 8530992
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: September 10, 2013
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Patent number: 8525287
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: September 3, 2013
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Patent number: 8525236
    Abstract: In an example embodiment, an image sensor includes a semiconductor layer and isolation regions disposed in the semiconductor layer. The isolation regions define active regions of the semiconductor layer. The image sensor further includes photoelectric converters disposed in the semiconductor layer and at least one wiring layer disposed over a top surface of the semiconductor layer. The image sensor also includes color filters disposed below a bottom surface of the semiconductor layer and lenses disposed below the color filters. Each lens is arranged to concentrate incoming light into an area spanned by a corresponding photoelectric converter.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: September 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Joon-Young Choi
  • Patent number: 8513761
    Abstract: A backside illumination semiconductor image sensor, wherein each photodetection cell includes a semiconductor body of a first conductivity type of a first doping level delimited by an insulation wall, electron-hole pairs being capable in said body after a backside illumination; on the front surface side of said body, a ring-shaped well of the second conductivity type, this well delimiting a substantially central region having its upper portion of the first conductivity type of a second doping level greater than the first doping level; and means for controlling the transfer of charge carriers from said body to said upper portion.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: August 20, 2013
    Assignees: STMicroelectronics (Grenoble) SAS, STMicroelectronics (Crolles 2) SAS
    Inventors: François Roy, Pierrick Descure
  • Patent number: 8487369
    Abstract: A semiconductor device includes: a plurality of first trenches formed inside a plurality of active regions; a plurality of buried gates configured to partially fill insides of the plurality of the first trenches; a plurality of second trenches formed to be extended in a direction crossing the plurality of the buried gates; and a plurality of buried bit lines configured to fill the plurality of the second trenches.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: July 16, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventor: Su-Young Kim
  • Patent number: 8436402
    Abstract: An exposure mask according to an embodiment of the invention includes a first transmission region where a plurality of dots through which light is shielded or transmitted are arrayed into a matrix form having rows and columns and a second transmission region where a plurality of dots through which the light is shielded or transmitted are arrayed into a matrix form having rows and columns and is disposed adjacent to the first transmission region. The dots arrayed in a row or a column of the first transmission region, which is adjacent to the second transmission region, have an area intermediate between areas of dots arrayed on both sides of the row or the column.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: May 7, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ken Tomita
  • Patent number: 8426896
    Abstract: A solid state imaging device in which ? characteristic is obtained and enlargement of dynamic range is provided. The solid state imaging device of the present invention includes a vertical overflow function and has a feature in which potential of a semiconductor substrate is changed from a high potential to a low potential in a stepwise manner during a period from an exposure start to an exposure end.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: April 23, 2013
    Assignee: Sony Corporation
    Inventor: Tetsuro Kumesawa
  • Patent number: 8421134
    Abstract: A back side illumination image sensor reduced in chip size has a capacitor disposed in a vertical upper portion of a pixel region in the back side illumination image sensor in which light is illuminated from a back side of a subscriber, thereby reducing a chip size, and a method for manufacturing the back side illumination image sensor. The capacitor of the back side illumination image sensor reduced in chip size is formed in the vertical upper portion of the pixel region, not in the outside of a pixel region, so that the outside area of the pixel region for forming the capacitor is not required, thereby reducing a chip size.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 16, 2013
    Assignee: Siliconfile Technologies Inc.
    Inventors: In Gyun Jeon, Se Jung Oh, Heui Gyun Ahn, Jun Ho Won
  • Patent number: 8384176
    Abstract: A solid-state imaging device includes a photoelectric conversion section which is provided for each pixel and which converts light incident on a first surface of a substrate into signal charges, a circuit region which reads signal charges accumulated by the photoelectric conversion section, a multilayer film including an insulating film and a wiring film, the multilayer film being disposed on a second surface of the substrate opposite to the first surface, and a transmission-preventing film disposed at least between the wiring film in the multilayer film and the substrate.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: February 26, 2013
    Assignee: Sony Corporation
    Inventors: Masakazu Furukawa, Keiji Mabuchi
  • Patent number: 8324702
    Abstract: A solid-state imaging device includes a photoelectric conversion section which is provided for each pixel and which converts light incident on a first surface of a substrate into signal charges, a circuit region which reads signal charges accumulated by the photoelectric conversion section, a multilayer film including an insulating film and a wiring film, the multilayer film being disposed on a second surface of the substrate opposite to the first surface, and a transmission-preventing film disposed at least between the wiring film in the multilayer film and the substrate.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: December 4, 2012
    Assignee: Sony Corporation
    Inventors: Masakazu Furukawa, Keiji Mabuchi
  • Patent number: 8288701
    Abstract: A system for controlling power applied to pixels in an imager. A first switch coupling the internal power node of the pixels to the power supply of the imager. A second switch coupling the internal power node of the pixels to a ground potential or low potential. The first and second switches are controlled complimentary to each other during integration and readout of the pixels. A third switch providing a high impedance mode where the internal power node and n+ guard ring are isolated from the operating and ground potentials.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: October 16, 2012
    Assignee: Aptina Imaging Corporation
    Inventors: Yandong Chen, Yaowu Mo
  • Patent number: 8269260
    Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: September 18, 2012
    Assignee: InVisage Technologies, Inc.
    Inventors: Hui Tian, Edward Sargent
  • Publication number: 20120187455
    Abstract: The sensitivity of a photosensor is improved without decreasing read-out efficiency. The photosensor includes: a photodiode (D1) that converts received light into an electric current; a light shielding film (LS) that generates a parasitic capacitance between the photodiode (D1) and itself, a control signal line (RWST) that supplies a storage node (INT) with a reset signal and a read-out signal via the photodiode (D1); and a transistor (M2) connected with the storage node (INT) and an output line (OUT) for outputting, to the output line (OUT), an output signal corresponding to the potential of the storage node (INT) in response to the read-out signal.
    Type: Application
    Filed: July 26, 2010
    Publication date: July 26, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Christopher Brown, Kohei Tanaka
  • Patent number: 8227844
    Abstract: A CMOS active pixel sensor (APS) cell structure includes at least one transfer gate device and method of operation. A first transfer gate device comprises a diodic or split transfer gate conductor structure having a first doped region of first conductivity type material and a second doped region of a second conductivity type material. A photosensing device is formed adjacent the first doped region for collecting charge carriers in response to light incident thereto, and, a diffusion region of a second conductivity type material is formed at or below the substrate surface adjacent the second doped region of the transfer gate device for receiving charges transferred from the photosensing device while preventing spillback of charges to the photosensing device upon timed voltage bias to the diodic or split transfer gate conductor structure.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: July 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: James W. Adkisson, Andres Bryant, John J. Ellis-Monaghan