Color Filter Patents (Class 438/70)
  • Publication number: 20150056741
    Abstract: A method of manufacturing a semiconductor apparatus comprising forming an electrode on a structure provided on a substrate, the structure including a wiring pattern and an interlayer insulation film, forming a first film covering the electrode and the structure, forming an opening in a portion of the first film inside an outer edge of a convex portion formed by steps between upper faces of the electrode and the structure so as to expose a first portion as a portion of the upper face of the electrode, forming a second film covering the first film and the first portion, forming a protective film covering the first portion, the convex portion, and a periphery of the convex portion by patterning the second film, and forming a third film on the first film and the protective film by spin coating.
    Type: Application
    Filed: July 22, 2014
    Publication date: February 26, 2015
    Inventor: Masaki Kurihara
  • Publication number: 20150056739
    Abstract: Provided is a semiconductor image sensor device. The image sensor device includes a substrate. The image sensor device includes a first pixel and a second pixel disposed in the substrate. The first and second pixels are neighboring pixels. The image sensor device includes an isolation structure disposed in the substrate and between the first and second pixels. The image sensor device includes a doped isolation device disposed in the substrate and between the first and second pixels. The doped isolation device surrounds the isolation structure in a conformal manner.
    Type: Application
    Filed: October 7, 2014
    Publication date: February 26, 2015
    Inventors: CHIH-YU LAI, Yeur-Luen Tu, Chih-Hui Huang, Cheng-Ta Wu, Chia-Shiung Tsai, Luan C. Tran
  • Patent number: 8962372
    Abstract: A photoelectric conversion device comprises a high-refractive-index portion at a position close to a photoelectric conversion element therein. And, the high-refractive-index portion has first and second horizontal cross-section surfaces. The first cross-section surface is at a position closer to the photoelectric conversion element rather than the second cross-section surface, and is larger than an area of the second cross-section surface, so as to guide an incident light into the photoelectric conversion element without reflection.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masatsugu Itahashi
  • Publication number: 20150048467
    Abstract: An image sensor device and a method for manufacturing the image sensor device are provided. An image sensor device includes a substrate, sensor elements disposed at a front surface of the substrate, and a dielectric grid disposed over a back surface of the substrate. The dielectric grid includes a first dielectric layer as a bottom portion, a metal pillar, as a core portion of a upper portion, disposed over the first dielectric layer and a second dielectric layer wrapping around the metal pillar. The image sensor device also includes a stack of layers disposed over the back surface of the substrate. Refractive index of each layers increases from top layer to bottom layer. The image sensor device also includes a color filter and a microlens disposed over the back surface of the substrate.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ssu-Chiang Weng, Kuo-Cheng Lee, Chi-Cherng Jeng
  • Patent number: 8956909
    Abstract: An electronic device and a method of fabricating the same are provided. The electronic device includes: a photodiode layer; a wiring layer formed on the first surface of the photodiode layer; a plurality of electrical contact pads formed on the wiring layer; a passivation layer formed on the wiring layer and the electrical contact pads; an antireflective layer formed on the second surface of the photodiode layer; a color filter layer formed on the antireflective layer; a dielectric layer formed on the antireflective layer and the color filter layer; and a microlens layer formed on the dielectric layer, allowing the color filter layer, the dielectric layer and the microlens layer to define an active region within which the electrical contact pads are positioned. As the electrical contact pads are positioned within the active region, an area of the substrate used for an inactive region can be eliminated.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 17, 2015
    Assignee: Unimicron Technology Corporation
    Inventors: Tzyy-Jang Tseng, Dyi-Chung Hu
  • Publication number: 20150041936
    Abstract: A method for forming a back-illuminated image sensor includes forming a higher doped crystalline layer on a crystalline substrate, growing a lower doped crystalline layer on the higher doped crystalline layer and forming a photodiode and component circuitry from the lower doped crystalline layer. Metallization structures are formed to make connections to and between components. The crystalline substrate is removed to expose the higher doped crystalline layer. An optical component structure is provided on an exposed surface of the higher doped crystalline layer to receive light therein such that the higher doped crystalline layer provides a passivation layer for the photodiode and the component circuitry.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 12, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen W. Bedell, Bahman Hekmatshoartabari, Ghavam G. Shahidi, Davood Shahrjerdi
  • Publication number: 20150041943
    Abstract: A multilayer optical filter is provided for an integrated circuit including a substrate and a metallization layer interconnection part. The optical filter is formed from a first filter part located within the interconnection part and positioned over a photosensitive region of the substrate. The optical filter further includes a second filter part positioned above the first filter part and the interconnection part. The first and second filter parts each include a metal layer. The first and second filter parts are separated from each other as a function of a wavelength in vacuum of an optical signal to be filtered and received by the photosensitive region.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Applicants: STMICROELECTRONICS SA, Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Laurent Frey, Michel Marty
  • Publication number: 20150041937
    Abstract: Color filter array devices and methods of making color filter array devices are disclosed herein. A color filter array may include a substrate having a plurality of pixels thereon, one or more nanowires associated with each of the plurality of pixels, wherein each of the one or more nanowires extends substantially perpendicularly from the substrate, and an optical coupler associated with each of the one or more nanowires. A method of making a color filter array may include, making an array of nanowires, wherein each of the nanowires extend substantially perpendicularly from a substrate, disposing a transparent polymer material to substantially encapsulate the nanowires, removing the nanowires from the substrate, providing a pixel array comprising a plurality of pixels, wherein a hard polymer substantially covers an image plane of the pixel array, disposing the array of nanowires on the pixel array, and removing the transparent polymer encapsulating the nanowires.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 12, 2015
    Applicant: Zena Technologies, Inc.
    Inventors: Young-June YU, Munib WOBER
  • Publication number: 20150041939
    Abstract: The image sensor includes lens-type color filters having a uniform shape for a plurality of pixels. The image sensor includes a plurality of pixels formed in a substrate, a plurality of color filter housings formed over outer boundaries of the respective pixels, and a plurality of color filters filled in spaces defined by the respective color filter housings, wherein the clock filter housings surround edges of the respective color filters with a given curvature.
    Type: Application
    Filed: December 13, 2013
    Publication date: February 12, 2015
    Applicant: SK hynix Inc.
    Inventor: Sang-Sik KIM
  • Publication number: 20150041942
    Abstract: A solid-state image pickup device, including: a plurality of pixels; a separation structure provided along a boundary line adjacent to the plurality of pixels; the separation structure includes a groove provided from a back surface of the semiconductor substrate to a depth corresponding to a wavelength, the groove being positioned along the boundary line, a first separation layer provided in the groove, and a second separation layer provided above the first separation layer and corresponding to the boundary line, the second separation layer being connected to the first separation layer; and methods including the same.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 12, 2015
    Inventors: Yoshiki Ebiko, Atsuhiko Yamamoto, Yasushi Tateshita, Hiromi Okazaki
  • Patent number: 8946611
    Abstract: A color filter is formed using a simple manufacturing method, and bias application to a pixel separating electrode allows sensitivity in low illumination intensity to be improved. In a solid-state imaging element, in which a plurality of unit pixel sections are disposed two dimensionally on a side closer to a front surface of a semiconductor substrate or a semiconductor layer, each unit pixel section having a light receiving section for generating a signal charge by light irradiation, an adjoining unit pixel section is formed in the same color to allow for lesser alignment accuracy of the color filter. A pixel separating electrode is formed in the adjoining unit pixel section, and a signal charge is shared by bias application during low illumination intensity, thereby improving an effective photodiode area.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: February 3, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hiroshi Iwata
  • Patent number: 8940574
    Abstract: A method includes forming a plurality of image sensors on a front side of a semiconductor substrate, and forming a dielectric layer on a backside of the semiconductor substrate. The dielectric layer is over the semiconductor substrate. The dielectric layer is patterned into a plurality of grid-filling regions, wherein each of the plurality of grid-filling regions overlaps one of the plurality of image sensors. A metal layer is formed on top surfaces and sidewalls of the plurality of grid-filling regions. The metal layer is etched to remove horizontal portions of the metal layer, wherein vertical portions of the metal layer remain after the step of etching to form a metal grid. A transparent material is filled into grid openings of the metal grid.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: January 27, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Chien Wang, Chu-Wei Chang, Wang-Pen Mo, Hung-Chang Hsieh
  • Patent number: 8941200
    Abstract: According to one embodiment, provided are a first photoelectric conversion layer provided for a first wavelength band, a second photoelectric conversion layer provided for a second wavelength band, and a color separation element adapted to separate an incident light into a transmission light including the first wavelength band and a reflection light including the second wavelength band, wherein an angle of incidence of the incident light with respect to a reflection surface of the color separation element is set so that a vertically polarized light and a horizontally polarized light are included in the reflection light.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: January 27, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yoshitaka Egawa
  • Patent number: 8941133
    Abstract: An organic light-emitting display apparatus and a method of manufacturing the same. The organic light-emitting display apparatus includes a substrate; a first passivation layer formed on the substrate; at least one of color filters formed on the first passivation layer; an overcoat layer that covers the color filter; a second passivation layer that is formed on the first passivation layer and surrounds the overcoat layer; a first electrode formed on the second passivation layer; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: January 27, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Doo-Hwan Kim, Il-Hwa Hong, Sang-Ha Park
  • Publication number: 20150021728
    Abstract: An integrated circuit device in which an array of photodiodes are formed at the surface of a semiconductor substrate. A dielectric structure comprising multiple layers of dielectric is formed over the photodiodes. An array of color filters is formed over the photodiodes and within the dielectric structure. An interface between two layers of the dielectric structure is aligned with the bases of the color filters. The interface provides an etch stops that allows the depths of the trenches in which the color filters are formed to be well controlled.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yin Chieh Huang, Kuo-Cheng Lee, Chi-Cherng Jeng
  • Patent number: 8936952
    Abstract: An object is to provide a manufacturing method of a semiconductor device in which a defect in characteristics due to a crack occurring in a semiconductor device is reduced. Provision of a crack suppression layer formed of a metal film in the periphery of a semiconductor element makes it possible to suppress a crack occurring from the outer periphery of a substrate and reduce damage to the semiconductor element. In addition, even if the semiconductor device is subjected to physical forces from the outer periphery in separation and transposition steps, progression (growth) of a crack to the semiconductor device can be suppressed by the crack suppression layer.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: January 20, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Akihiro Chida
  • Patent number: 8937342
    Abstract: A CMOS image sensor includes an active pixel structure suitable for sensing light incident from outside and converting a sensed light into an electrical signal, and an optical block structure suitable for blocking a visible light and passing a UV light to check and evaluate an electrical characteristic of the active pixel area. The UV pass filter includes first and second insulation layers comprising an insulator, and a metal layer formed between the first and second insulation layers.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 20, 2015
    Assignees: SK Hynix Inc., Postech Academy-Industry Foundation
    Inventors: Do Hwan Kim, Su Hwan Lim, Hae Wook Han, Young Woong Do, Won Jun Lee
  • Publication number: 20150014754
    Abstract: Provided are an image sensor and a method of manufacturing the same. The image sensor includes a support substrate, a wire layer disposed under the support substrate, an epitaxial layer disposed under the wire layer, and a photodiode disposed in the epitaxial layer. The epitaxial layer has an off angle of about 0.3° to about 1.5° with respect to a [001] crystal orientation.
    Type: Application
    Filed: November 29, 2012
    Publication date: January 15, 2015
    Inventor: Hongkang Lim
  • Publication number: 20150014689
    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: Application
    Filed: July 31, 2014
    Publication date: January 15, 2015
    Inventor: Salman Akram
  • Publication number: 20150003777
    Abstract: The present disclosure provides an integrated circuit device comprising a substrate having a back surface and a sensing region disposed in the substrate and being operable to sense radiation projected towards the back surface of the substrate. The device further includes a waveguide disposed over the back surface of the substrate. The waveguide is aligned with the sensing region such that the waveguide is operable to transmit the radiation towards the aligned sensing region. The waveguide includes a waveguide wall, and an inner region disposed adjacent to the waveguide wall. A diffractive index of the waveguide wall is less than a diffractive index of the inner region.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Allen Tseng, Che-Min Lin, Zen-Fong Huang, Volume Chien, Chi-Cherng Jeng
  • Patent number: 8921966
    Abstract: An image sensor includes: a photoelectric conversion pixel having a photoelectric conversion element that performs photoelectric conversion, and a light guide formed of a first material in an interlayer insulation film above the photoelectric conversion element; and a light-shielded pixel having a photoelectric conversion element that performs photoelectric conversion, a light guide formed of a second material that is different from the first material in an interlayer insulation film above the photoelectric conversion element, and a light-shielding layer formed above the light guide.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: December 30, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takafumi Kishi
  • Publication number: 20140374862
    Abstract: A color photosensor array has photosensors of a first type having a thick overlying silicon layer, photosensors of a second type having a thin overlying silicon layer, and photosensors of a third type having no overlying silicon layer; the photosensors of the first type having peak sensitivity in the red, the photosensors of the second type having peak sensitivity in the green. In particular embodiments, color correction circuitry is provided to enhance color saturation.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 25, 2014
    Inventors: ChiaYing Liu, Keh-Chiang Ku, Dyson Hsinchih Tai, WuZhang Yang
  • Publication number: 20140374863
    Abstract: An image pickup apparatus includes a plurality of types of pixels, each of which includes a conversion element configured to convert light into a charge and one of a plurality of types of filters configured to transmit light in different wavelength bands. A type of pixel of the plurality of types of pixels further includes a lightguide configured to guide light entering the pixel to the conversion element. Another type of pixel of the plurality of types of pixels includes no structure corresponding to the lightguide.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 25, 2014
    Inventor: Takumi Ogino
  • Publication number: 20140360576
    Abstract: A structural element is described to control the color of light transmitted and reflected from an intrinsically semitransparent photovoltaic cell and/or module for use with a PV window and methods for fabricating the same. Color control elements are described that will 1) control or shift the color spectrum of light transmitted through the PV window, 2) control or shift the color spectrum of light reflected from the outside of the window, and 3) control or shift the color spectrum of light reflected from the inside of the PV window.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 11, 2014
    Inventors: Victor V. Plotnikov, Chad W Carter, John M. Stayancho, Alvin D. Compaan
  • Patent number: 8907331
    Abstract: A display unit comprising an organic layer between a light-emitting section portion of a first electrode layer and a light-emitting section portion of a second electrode layer. Light is emissible from within the organic layer. An aperture-defining insulating film is between a contact section of the first electrode layer and a gap section portion of the second electrode layer. The thickness of the gap section portion of the second electrode layer is greater than the thickness of the light-emitting section portion of the second electrode layer.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 9, 2014
    Assignee: Sony Corporation
    Inventors: Seiichiro Jinta, Makoto Noda, Gaku Izumi, Kenichi Izumi, Manabu Kodate, Takahiro Seki, Michitoshi Tsuchiya
  • Publication number: 20140353787
    Abstract: An image sensor including a microlens, a substrate, a first dielectric layer, a second dielectric layer and a color filter is provided. The microlens receives light; the substrate includes a light sensing element in a light sensing area for receiving light incident to the microlens. The first dielectric layer and the second dielectric layer are stacked on the substrate from bottom to top, wherein the second dielectric layer has a recess on the first dielectric layer and in an optical path between the microlens and the light sensing element. The color filter is disposed in the recess. Moreover, the present invention also provides an image sensing process for forming said image sensor.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 4, 2014
    Applicant: United Microelectronics Corp.
    Inventor: Chun-Hong Peng
  • Patent number: 8900912
    Abstract: Embodiments of the invention relate to a camera assembly including a rear-facing camera and a front-facing camera operatively coupled together (e.g., bonded, stacked on a common substrate). In some embodiments of the invention, a system having an array of frontside illuminated (FSI) imaging pixels is bonded to a system having an array of backside illuminated (BSI) imaging pixels, creating a camera assembly with a minimal size (e.g., a reduced thickness compared to prior art solutions). An FSI image sensor wafer may be used as a handle wafer for a BSI image sensor wafer when it is thinned, thereby decreasing the thickness of the overall camera module. According to other embodiments of the invention, two package dies, one a BSI image sensor, the other an FSI image sensor, are stacked on a common substrate such as a printed circuit board, and are operatively coupled together via redistribution layers.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: December 2, 2014
    Assignee: OmniVision Technologies, Inc.
    Inventors: Gang Chen, Ashish Shah, Duli Mao, Hsin-Chih Tai, Howard E. Rhodes
  • Publication number: 20140349439
    Abstract: A method of manufacturing an electronic device includes forming a structure including a member, and a first film arranged on at least a surface of the member, the member including an insulating film, a passivation film arranged on the insulating film and having an upper surface, and a trench positioned from the passivation film to the insulating film; forming a second film to cover the first film; and patterning the second film by a photolithography process using a photomask. In the forming the second film, an alignment mark including a concave portion corresponding to the trench is formed in a region above the trench in the second film. In the patterning the second film, the photomask is aligned with the structure by using the alignment mark.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 27, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masahiko Kondo, Masaki Kurihara
  • Patent number: 8896137
    Abstract: A solid-state image pickup device includes: a silicon layer; a pixel portion formed in the silicon layer for processing and outputting signal charges obtained by carrying out photoelectric conversion for incident lights; an alignment mark formed in a periphery of the pixel portion and in the silicon layer; and a contact portion through which a first electrode within a wiring layer formed on a first surface of the silicon layer, and a second electrode formed on a second surface opposite to the first surface of the silicon layer through an insulating film are connected, wherein the alignment mark and the contact portion are formed from conductive layers made of the same conductive material and formed within respective holes each extending completely through the silicon layer through respective insulating layers made of the same material.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: November 25, 2014
    Assignee: Sony Corporation
    Inventors: Keiichi Nakazawa, Takayuki Enomoto
  • Publication number: 20140339606
    Abstract: A back surface illuminated image sensor is provided. The back surface illuminated image sensor includes: a first passivation layer disposed on the photodiode array; an oxide grid disposed on the first passivation layer and forming a plurality of holes exposing the first passivation layer; a color filter array including a plurality of color filters filled into the holes, wherein the oxide grid has a refractive index smaller than that of plurality of color filters; and a metal grid aligned to the oxide grid, wherein the metal grid has an extinction coefficient greater than zero.
    Type: Application
    Filed: December 4, 2013
    Publication date: November 20, 2014
    Applicant: VisEra Technologies Company Limited
    Inventors: Chi-Han LIN, Zong-Ru TU, Yu-Kun HSIAO, Chih-Kung CHANG
  • Patent number: 8889461
    Abstract: A method includes performing a first epitaxy to grow a first epitaxy layer of a first conductivity type, and performing a second epitaxy to grow a second epitaxy layer of a second conductivity type opposite the first conductivity type over the first epitaxy layer. The first and the second epitaxy layers form a diode. The method further includes forming a gate dielectric over the first epitaxy layer, forming a gate electrode over the gate dielectric, and implanting a top portion of the first epitaxy layer and the second epitaxy layer to form a source/drain region adjacent to the gate dielectric.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 18, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shiu-Ko JangJian, Min Hao Hong, Kei-Wei Chen, Chih-Cherng Jeng
  • Patent number: 8878267
    Abstract: A purpose of the present invention is to provide a preferable separation structure of wells when a photoelectric conversion unit and a part of a peripheral circuit unit or a pixel circuit are separately formed on separate substrates and electrically connected to each other. To this end, a solid-state imaging device includes a plurality of pixels including a photoelectric conversion unit and a amplification transistor configured to amplify a signal generated by the photoelectric conversion unit; a first substrate on which a plurality of the photoelectric conversion units are disposed; and a second substrate on which a plurality of the amplification transistors are disposed. A well of a first conductivity type provided with a source region and a drain region of the amplification transistor is separated from a well, which is disposed adjacent to the well in at least one direction, of the first conductivity type provided with the source region and the drain region of the amplification transistor.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: November 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Fumihiro Inui
  • Patent number: 8872301
    Abstract: The presented principles describe an apparatus and method of making the same, the apparatus being a semiconductor circuit device, having shallow trench isolation features bounding an active area and a periphery area on a semiconductor substrate to electrically isolate structures in the active area from structures in the periphery area. The shallow trench isolation feature bounding the active area is shallower than the shallow trench isolation feature bounding the periphery area, with the periphery area shallow trench isolation structure being formed through two or more etching steps.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: October 28, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Yang Hung, Po-Zen Chen, Szu-Hung Yang, Chih-Cherng Jeng, Chih-Kang Chao, I-I Cheng
  • Publication number: 20140313379
    Abstract: An imaging system may include a camera module with an image sensor having an array of image sensor pixels. The image sensor may include a substrate having an array of photodiodes, an array of microlenses formed over the array of photodiodes, and an array of color filter elements interposed between the array of microlenses and the array of photodiodes. The color filter elements may be separated from each other by color filter barriers. Each color filter barrier may include an upper portion formed from dielectric material and a lower portion formed from metal. The metal portion of each color filter barrier may form a crosstalk reduction structure that prevents stray light from passing from one pixel to an adjacent pixel. The color filter barriers may have a grid shape with an array of openings. The color filter elements may be deposited in the openings.
    Type: Application
    Filed: August 28, 2013
    Publication date: October 23, 2014
    Applicant: Aptina Imaging Corporation
    Inventor: Jeffrey Mackey
  • Patent number: 8866250
    Abstract: A device includes a semiconductor substrate, a black reference circuit in the semiconductor substrate, a metal pad on a front side of, and underlying, the semiconductor substrate, and a first and a second conductive layer. The first conductive layer includes a first portion penetrating through the semiconductor substrate to connect to the metal pad, and a second portion forming a metal shield on a backside of the semiconductor substrate. The metal shield is aligned to the black reference circuit, and the first portion and the second portion are interconnected to form a continuous region. The second conductive layer includes a portion over and contacting the first portion of the first conductive layer, wherein the first portion of the first conductive layer and the portion of the second conductive layer form a first metal pad. A dielectric layer is overlying and contacting the second portion of the first conductive layer.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: October 21, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shyh-Fann Ting, Ching-Chun Wang
  • Patent number: 8865508
    Abstract: Provided is a semiconductor device having a backside illuminated image sensor and a method of forming same. The method includes providing a first substrate and a second substrate, forming metal interconnections on a first surface of the first substrate, forming a filling insulating layer filling spaces between sides of the metal interconnections and covering upper surfaces of the metal interconnections, forming a buffer insulating layer softer than the filling insulating layer on the filling insulating layer, forming a capping insulating layer denser than the buffer insulating layer on the buffer insulating layer, and bonding a surface of the capping insulating layer to a surface of the second substrate.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: October 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-Keun Park, Dong-Jo Kang, Hyoung-Jun Kim, Jin-Sung Chung
  • Patent number: 8860102
    Abstract: A solid-state imaging device has, in a semiconductor substrate, plural PDs arranged two-dimensionally and signal reading circuits which are formed as MOS transistors and read out signals corresponding to charges generated in the respective PDs. Microlenses for focusing light beams are formed over the respective PDs. An interlayer insulating film in which interconnections are buried is formed as an insulating layer between the semiconductor substrate and the microlenses. Closed-wall-shaped structures are formed in the interlayer insulating film so as to surround parts of focusing optical paths of the microlenses, respectively. The structures are made of a nonconductive material that is different in refractive index from a material of what is formed around them.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: October 14, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Shunsuke Tanaka
  • Publication number: 20140300785
    Abstract: A solid-state imaging device includes pixels each having a photoelectric conversion element for converting incident light to an electric signal, color filters associated with the pixels and having a plurality of color filter components, microlenses converging the incident light through the color filters to the photoelectric conversion elements, a light shielding film disposed between the color filter components of the color filters, and a nonplanarized adhesive film provided between the color filters and the light shielding film.
    Type: Application
    Filed: May 14, 2014
    Publication date: October 9, 2014
    Applicant: Sony Corporation
    Inventors: Tomoharu Ogita, Atsushi Yamamoto, Keiji Tatani, Yoichi Ootsuka, Kiyotaka Tabuchi
  • Patent number: 8852987
    Abstract: A method of manufacturing an image pickup device includes a step of forming a filling member such that the filling member covers a light guiding part and a peripheral part provided in a film. The light guiding part is positioned on an image pickup region of the image pickup device and has openings that correspond to respective photoelectric conversion portions. The peripheral part is positioned on a peripheral region of the image pickup device. The filling member fills in the openings. The method includes a step of processing the filling member. The method includes a step of forming light guiding members, which is performed after the step of processing filling member has been performed, by a polishing process performed on the filling member so that the light guiding part is exposed. The light guiding members are part of the filling member and disposed in the openings.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: October 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Tsukagoshi, Tadashi Sawayama, Akihiro Kawano, Sho Suzuki, Takehito Okabe, Masatsugu Itahashi
  • Patent number: 8846494
    Abstract: An imaging system may include an imager integrated circuit with frontside components such as imaging pixels and backside components such as color filters and microlenses. The imager integrated circuit may be mounted to a carrier wafer with alignment marks. Bonding marks on the carrier wafer and the imager integrated circuit may be used to align the carrier wafer accurately to the imager integrated circuit. The alignment marks on the carrier wafer may be read, by fabrication equipment, to align backside components of the imager integrated circuit, such as color filters and microlenses, with backside components of the imager integrated circuit, such as photodiodes.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: September 30, 2014
    Assignee: Aptina Imaging Corporation
    Inventors: Gianluca Testa, Giovanni De Amicis
  • Patent number: 8841187
    Abstract: Disclosed is a semiconductor device and a method for fabricating the semiconductor device. The method for fabricating the semiconductor device comprises steps of: forming a side cliff in a substrate in accordance with a gate mask pattern, the side cliff being substantially vertical to a substrate surface; forming a dielectric layer on the substrate that comprises the side cliff; etching the dielectric layer to have the dielectric layer left only on the side cliff, as a dielectric wall; and burying the side cliff by a substrate growth, the burying is performed up to a level higher than the upper end of the dielectric wall.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 23, 2014
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventor: Meng Zhao
  • Patent number: 8841159
    Abstract: A method for manufacturing an optoelectronic semiconductor component, comprising: providing a semiconductor chip in a composite wafer, comprising an active side for emitting a primary radiation and a contact terminal which is arranged on the active side; depositing a coupling element on the active side; attaching a luminescence conversion element, for converting part of the primary radiation into a secondary radiation, to the coupling element.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: September 23, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Hans-Christoph Gallmeier, Michael Kruppa, Raimund Schwarz, Guenter Spath
  • Publication number: 20140264688
    Abstract: According to one embodiment, a solid state imaging device includes a silicon substrate unit, a color filter layer, first, second and third optical layers. The silicon substrate unit includes imaging units provided in a plane parallel to a major surface. The color filter layer is apart from the silicon substrate unit. The color filter has a lower refractive index than the silicon substrate unit. The first optical layer has a lower first refractive index than the color filter layer and the silicon substrate unit, and is light transmissive. The second optical layer has a second refractive index higher than the first refractive index and lower than the refractive index of the silicon substrate unit, is light transmissive. The third optical layer has a third refractive index lower than the refractive index of the color filter layer and lower than the second refractive index, and is light transmissive.
    Type: Application
    Filed: September 11, 2013
    Publication date: September 18, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Nobuki KANREI
  • Publication number: 20140264690
    Abstract: Certain embodiments provide a solid state imaging device including a plurality of pixels. Each of the pixels has a semiconductor layer which has a charge accumulating layer at a front surface thereof and a filter layer provided above a rear surface of the semiconductor layer. Transmissive wavelength bands of the filter layers included in the pixels are different from each other, and thicknesses which a plurality of the semiconductor layers included in the pixels and including a plurality of the charge accumulating layers have are different from each other.
    Type: Application
    Filed: January 24, 2014
    Publication date: September 18, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuhiro NAGATA, Takayuki Ogasahara, Katsuo Iwata, Ninao Sato
  • Publication number: 20140263967
    Abstract: An image sensor comprising a substrate and one or more of pixels thereon. The pixels have subpixels therein comprising nanowires sensitive to light of different color. The nanowires are functional to covert light of the colors they are sensitive to into electrical signals.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: ZENA TECHNOLOGIES, INC.
    Inventor: Munib Wober
  • Publication number: 20140263965
    Abstract: A pixel of an image sensor includes a color filter configured to pass visible wavelengths, and an infrared cut-off filter disposed on the color filter configured to cut off infrared wavelengths.
    Type: Application
    Filed: April 4, 2014
    Publication date: September 18, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: JUNG CHAK AHN
  • Patent number: 8835981
    Abstract: According to embodiments of the present invention, a solid-state image sensor has a semiconductor element substrate having a plurality of photo electric conversion elements, an interlaminar insulating film having wires, formed at a first surface of the semiconductor element substrate, a color filter having a plurality of dye films of a plurality of colors, formed at a second surface of the semiconductor element substrate, a micro lens array having a plurality of micro lenses, formed above the color filter, a plurality of inner lenses formed between the photoelectric conversion elements and the dye films, and a shroud that surrounds each of the inner lenses, formed above the second surface of the semiconductor element substrate.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: September 16, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Amane Oishi
  • Publication number: 20140252525
    Abstract: A method and device is disclosed for reducing noise in CMOS image sensors. An improved CMOS image sensor includes a light sensing structure surrounded by a support feature section. An active section of the light sensing structure is covered by no more than optically transparent materials. A light blocking portion includes an opaque layer or a black light filter layer in conjunction with an opaque layer, covering the support feature section. The light blocking portion may also cover a peripheral portion of the light sensing structure. The method for forming the CMOS image sensors includes using film patterning and etching processes to selectively form the opaque layer and the black light filter layer where the light blocking portion is desired, but not over the active section. The method also provides for forming microlenses over the photosensors in the active section.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 11, 2014
    Applicant: Taiwan Semiconductor Manufaturing Co., Ltd.
    Inventors: Tien-Chi WU, Tsung-Yi LIN
  • Patent number: 8828779
    Abstract: A backside illumination (BSI) CMOS image sensing process includes the following steps. A substrate having an active side is provided. A curving process is performed to curve the active side. A reflective layer is formed on the active side, so that at least a curved mirror is formed on the active side.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: September 9, 2014
    Assignee: United Microelectronics Corp.
    Inventor: Xin Zhao
  • Patent number: 8823123
    Abstract: According to one embodiment, there is provided a solid-state image sensor including a photoelectric conversion layer, and a multilayer interference filter. The multilayer interference filter is arranged to conduct light of a particular color, of incident light, selectively to the photoelectric conversion layer. The multilayer interference filter has a laminate structure in which a first layer having a first refraction index and a second layer having a second refraction index are repeatedly laminated, and a third layer which is in contact with a lower surface of the laminate structure and has a third refraction index. A lowermost layer of the laminate structure is the second layer. The third refraction index is not equal to the first refraction index and is higher than the second refraction index.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: September 2, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Kokubun, Yusaku Konno