Antireflection Coating Patents (Class 257/437)
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Patent number: 9024369Abstract: A backside illumination image sensor structure comprises an image sensor formed adjacent to a first side of a semiconductor substrate, wherein an interconnect layer is formed over the first side of the semiconductor substrate, a backside illumination film formed over a second side of the semiconductor substrate, a metal shielding layer formed over the backside illumination film and a via embedded in the backside illumination film and coupled between the metal shielding layer and the semiconductor substrate.Type: GrantFiled: December 18, 2012Date of Patent: May 5, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shiu-Ko JangJian, Chi-Cherng Jeng, Volume Chien, Ying-Lang Wang
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Patent number: 8987854Abstract: A microelectronic device is provided, including: a substrate including a first semiconductor layer positioned on a dielectric layer and a second semiconductor layer; and an isolation trench disposed through the first semiconductor layer, the dielectric layer, and a part of the thickness of the second semiconductor layer, including a dielectric material and delimiting, in the first semiconductor layer, a roughly rectangular active area of the device, wherein in said part of the thickness of the second semiconductor layer, at least one portion of the dielectric material is positioned under the active area delimited by at least four side walls of the trench, and two of the at least four side walls are roughly parallel with one another and are positioned under the active area, and the other two of the at least four side walls are orthogonal to said two walls and are not positioned under the active area.Type: GrantFiled: September 4, 2013Date of Patent: March 24, 2015Assignee: Commissariat a l 'energie atomique et aux energies alternativesInventors: Maud Vinet, Laurent Grenouillet, Yannick Le Tiec, Romain Wacquez
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Patent number: 8981510Abstract: Provided is an image sensor device. The image sensor device includes a substrate having a front side and a back side. The image sensor includes first and second radiation-detection devices that are disposed in the substrate. The first and second radiation-detection devices are operable to detect radiation waves that enter the substrate through the back side. The image sensor also includes an anti-reflective coating (ARC) layer. The ARC layer is disposed over the back side of the substrate. The ARC layer has first and second ridges that are disposed over the first and second radiation-detection devices, respectively. The first and second ridges each have a first refractive index value. The first and second ridges are separated by a substance having a second refractive index value that is less than the first refractive index value.Type: GrantFiled: June 4, 2010Date of Patent: March 17, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Chieh Chuang, Dun-Nian Yaung, Jen-Cheng Liu, Keng-Yu Chou, Wen-De Wang, Pao-Tung Chen
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Patent number: 8963064Abstract: A photosensor array includes plural photosensor pixels. Each of the photosensor pixels includes a lower electrode, an amorphous silicon film, an n-type amorphous silicon film, and an upper electrode. The photosensor array includes plural scanning lines connected to the upper electrodes, plural read lines connected to the lower electrodes, a scanning circuit that is connected to the plural scanning lines, and sequentially supplies a selection scanning signal of a first voltage to the respective scanning lines, a first unit that inputs a second voltage higher than the first voltage to the plural read lines in a blanking period of one horizontal scanning period, and thereafter puts the plural read lines into the floating state, and a second unit that outputs a voltage change in each of the read lines within one horizontal scanning period as the sensor output voltage of the photosensor pixel.Type: GrantFiled: September 22, 2011Date of Patent: February 24, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takeshi Yonekura, Toshio Miyazawa, Atsushi Hasegawa, Terunori Saitou, Kozo Yasuda
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Publication number: 20150048239Abstract: A plurality of photodiodes arrayed in a one-dimensional form are divided into a plurality of groups. The structure of an antireflection coating is changed for each group so that all the surfaces of the photodiodes belonging to each group are covered with an antireflection coating having a transmittance characteristic which shows a maximum transmittance within a range of wavelengths of light to be received by those photodiodes. In particular, a SiO2 coating layer on the silicon substrate and an Al2O3 coating layer are common to all the photodiodes, while the structure of the upper layers are modified with respect to the wavelength. Within an ultraviolet wavelength region, the coating structure is more finely changed with respect to the wavelength. By such a design, the transmittance can be improved while making the best efforts to avoid a complex manufacturing process.Type: ApplicationFiled: March 26, 2013Publication date: February 19, 2015Applicants: TOHOKU UNIVERSITY, SHIMADZU CORPORATIONInventors: Hideki Tominaga, Ryuta Hirose, Kenji Takubo, Shigetoshi Sugawa, Rihito Kuroda
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Patent number: 8946843Abstract: A solid-state image sensing device includes light-receiving regions and a color filter which transmits red light, a color filter which transmits blue light, and a color filter which transmits green light is provided. The color filters are arranged on a one-to-one basis above the light-receiving regions. Above the light-receiving region where the color filter which transmits red or blue light is arranged, a light-transmitting film, an antireflection film, a light-transmitting film, an antireflection film, and a light-transmitting film are arranged, in this order from the light-receiving region, between the light-receiving region and the color filter. Above the light-receiving region where the color filter which transmits green light is arranged, a light-transmitting film, an antireflection film, and a light-transmitting film are arranged, in this order from the light-receiving region, between the light-receiving region and the color filter.Type: GrantFiled: October 26, 2010Date of Patent: February 3, 2015Assignee: Canon Kabushiki KaishaInventors: Tadashi Sawayama, Takehiko Harada
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Patent number: 8946711Abstract: An organic light-emitting display device including: a substrate; a plurality of pixels each including a first electrode, a second electrode, and an organic emission layer interposed between the first electrode and the second electrode; and a black matrix-containing neutral density (ND) film formed in a direction in which light is emitted from the plurality of pixels.Type: GrantFiled: February 7, 2012Date of Patent: February 3, 2015Assignee: Samsung Display Co., Ltd.Inventor: Jang-Seok Ma
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Patent number: 8946844Abstract: A stack of a first anti-reflective coating (ARC) layer and a titanium layer is formed on a front surface of a semiconductor substrate including a p-n junction, and is subsequently patterned so that a semiconductor surface is physically exposed in metal contact regions of the front surface of the semiconductor substrate. The remaining portion of the titanium layer is converted into a titania layer by oxidation. A metal layer is plated on the metal contact regions, and a copper line is subsequently plated on the metal layer or a metal semiconductor alloy derived from the metal layer. A second ARC layer is deposited over the titania layer and the copper line, and is subsequently patterned to provide electrical contact to the copper line.Type: GrantFiled: February 28, 2013Date of Patent: February 3, 2015Assignee: International Business Machines CorporationInventors: Satyavolu S. Papa Rao, Kathryn C. Fisher, Harold J. Hovel, Qiang Huang, Young-hee Kim, Susan Huang
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Patent number: 8933526Abstract: An article including a nanostructured functional coating disposed on a substrate is described. The functional coating is characterized by both anti-reflection properties and down-converting properties. Related optoelectronic devices are also described.Type: GrantFiled: July 15, 2009Date of Patent: January 13, 2015Assignee: First Solar, Inc.Inventors: Loucas Tsakalakos, Eric Gardner Butterfield, Alok Mani Srivastava, Bastiaan Arie Korevaar
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Patent number: 8912617Abstract: A semiconductor light detection device fabrication technique is provided in which the cap etch and anti-reflection coating steps are performed in a single, self-aligned lithography module.Type: GrantFiled: October 27, 2011Date of Patent: December 16, 2014Assignee: Solar Junction CorporationInventors: Lan Zhang, Ewelina N. Lucow, Onur Fidaner, Michael W. Wiemer
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Patent number: 8907385Abstract: A backside illumination image sensor structure comprises an image sensor formed adjacent to a first side of a semiconductor substrate, wherein a first dielectric layer formed over the first side of the semiconductor substrate and an interconnect layer formed over the first dielectric layer. The image sensor structure further comprises a backside illumination film formed over a second side of the semiconductor substrate and a first silicon halogen compound layer formed between the second side of the semiconductor substrate and the backside illumination film.Type: GrantFiled: December 27, 2012Date of Patent: December 9, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shiu-Ko JangJian, Chin-Nan Wu, Chun-Che Lin
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Patent number: 8902348Abstract: A solid-state image capture device including: at least one photoelectric converter at an image capture surface of a substrate; at least one on-chip lens at the image capture surface of the substrate and above a light-receiving surface of the photoelectric converter; and an antireflection layer on an upper surface of the on-chip lens. The antireflection layer contains a binder resin having a lower refractive index than that of the on-chip lens and low-refractive-index particles having a lower refractive index than that of the binder resin.Type: GrantFiled: December 14, 2012Date of Patent: December 2, 2014Assignee: Sony CorporationInventors: Akiko Ogino, Yukihiro Sayama, Takayuki Shoya, Masaya Shimoji, Yoshikazu Tanaka
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Patent number: 8884392Abstract: Disclosed herein is a method of manufacturing a solid state imaging device, including the steps of: forming a light receiving portion in a light receiving area of a semiconductor substrate; forming a pad portion in a pad area of the semiconductor substrate; forming a microlens material layer over the light receiving portion and the pad portion; providing the microlens material layer with a microlens corresponding to the light receiving portion; forming a low-reflection material layer on the microlens material layer; etching the microlens material layer and the low-reflection material layer over the pad portion to form an opening; and imparting hydrophilicity to a surface of the low-reflection material layer and an inside portion of the opening by a normal temperature oxygen radical treatment.Type: GrantFiled: November 22, 2013Date of Patent: November 11, 2014Assignee: Sony CorporationInventors: Yoshinori Toumiya, Ina Hori, Tadayuki Dofuku, Hitomi Kamiya, Atsushi Yamamoto, Taichi Natori
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Patent number: 8878268Abstract: At least one exemplary embodiment is directed to a solid state image sensor including at least one antireflective layer and/or non rectangular shaped wiring layer cross section to reduce dark currents and 1/f noise.Type: GrantFiled: October 30, 2013Date of Patent: November 4, 2014Assignee: Canon Kabushiki KaishaInventors: Toru Koizumi, Akira Okita, Tetsuya Itano, Sakae Hashimoto, Ryuichi Mishima
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Publication number: 20140312447Abstract: A backside illuminated image sensor includes a semiconductor layer and a trench disposed in the semiconductor layer. The semiconductor layer has a frontside surface and a backside surface. The semiconductor layer includes a light sensing element of a pixel array disposed in a sensor array region of the semiconductor layer. The pixel array is positioned to receive external incoming light through the backside surface of the semiconductor layer. The semiconductor layer also includes a light emitting element disposed in a periphery circuit region of the semiconductor layer external to the sensor array region. The trench is disposed in the semiconductor layer between the light sensing element and the light emitting element.Type: ApplicationFiled: June 30, 2014Publication date: October 23, 2014Inventors: Duli Mao, Dyson H. Tai, Vincent Venezia, Yin Qian, Gang Chen, Howard E. Rhodes
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Patent number: 8859889Abstract: A solar cell element is disclosed. The solar cell element comprises a semiconductor substrate, a first electrode, a second electrode, a first wiring member and a second wiring member. The semiconductor substrate with a first surface and a second surface comprises a plurality of through-holes. The first electrode comprises a plurality of conduction portions and at least one first output extracting portion. The second electrode has a resistivity of less than 2.5×10-8 ?m (ohm-meter). The first wiring member comprises a first end face in a long direction thereof. The second wiring member comprises a second end face in a long direction thereof facing the first end face.Type: GrantFiled: April 20, 2011Date of Patent: October 14, 2014Assignee: KYOCERA CorporationInventor: Koutarou Umeda
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Publication number: 20140299956Abstract: An imaging device includes a semiconductor substrate having a photosensitive element for accumulating charge in response to incident image light. The semiconductor substrate includes a light-receiving surface positioned to receive the image light. The imaging device also includes a negative charge layer and a charge sinking layer. The negative charge layer is disposed proximate to the light-receiving surface of the semiconductor substrate to induce holes in an accumulation zone in the semiconductor substrate along the light-receiving surface. The charge sinking layer is disposed proximate to the negative charge layer and is configured to conserve or increase an amount of negative charge in the negative charge layer. The negative charge layer is disposed between the semiconductor substrate and the charge sinking layer.Type: ApplicationFiled: April 4, 2013Publication date: October 9, 2014Applicant: OmniVision Technologies, Inc.Inventors: Chih-Wei Hsiung, Oray Orkun Cellek, Gang Chen, Duli Mao, Vincent Venezia, Hsin-Chih Tai
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Publication number: 20140239432Abstract: An energy conversion and storage device includes an energy storage component (530, 601) including a first electrode (611) having a first plurality of channels (612) formed in a first region (615) of a first material (617), a second electrode (621) adjacent to but electrically isolated from the first electrode and having a second plurality of channels (622) formed in a first region (625) of a second material (627), and an electrolyte (650) within the first and second pluralities of channels. The first electrode forms a first interface (619) with the electrolyte and the second electrode forms a second interface (629) with the electrolyte. The energy conversion and storage device further includes a photovoltaic component (520, 602) formed in a second region of the first material.Type: ApplicationFiled: February 22, 2013Publication date: August 28, 2014Inventors: Donald S. Gardner, Cary L. Pint
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Patent number: 8816459Abstract: An image sensor having a wave guide includes a semiconductor substrate formed with a photodiode and a peripheral circuit region; an anti-reflective layer formed on the semiconductor substrate; an insulation layer formed on the anti-reflective layer; a wiring layer formed on the insulation layer and connected to the semiconductor substrate; at least one interlayer dielectric stacked on the wiring layer; and a wave guide connected to the insulation layer by passing through the interlayer dielectric and the wiring layer which are formed over the photodiode.Type: GrantFiled: July 31, 2012Date of Patent: August 26, 2014Assignee: Siliconfile Technologies Inc.Inventors: In-Gyun Jeon, Se-Jung Oh, Heui-Gyun Ahn, Jun-Ho Won
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Publication number: 20140217540Abstract: A fully depleted “diode passivation active passivation architecture” (DPAPA) produces a photodiode structure which includes a substrate, a highly-doped buffer layer of a first carrier doping type above the substrate, a low-doped or undoped semiconductor active layer of the first carrier doping type above the buffer layer, a low-doped or undoped passivation layer above the active layer, the passivation layer having a wider band gap than the active layer; and a junction layer of a carrier doping type opposite the first carrier doping type above the passivation layer such that a pn junction is formed between the junction layer and the passivation and active layers, the junction creating a depletion region which expands completely through the passivation and active layers in response to a reverse bias voltage. The fully depleted structure substantially eliminates Auger recombination, reduces dark currents and enables cryogenic level performance at high temperatures.Type: ApplicationFiled: February 4, 2013Publication date: August 7, 2014Applicant: TELEDYNE SCIENTIFIC & IMAGING, LLCInventors: WILLIAM E. TENNANT, DONALD L. LEE, ERIC C. PIQUETTE
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Publication number: 20140210034Abstract: A curable liquid formulation comprising: (i) one or more near-infrared absorbing polymethine dyes; (ii) one or more crosslinkable polymers; and (iii) one or more casting solvents. The invention is also directed to solid near-infrared absorbing films composed of crosslinked forms of the curable liquid formulation. The invention is also directed to a microelectronic substrate containing a coating of the solid near-infrared absorbing film as well as a method for patterning a photoresist layer coated on a microelectronic substrate in the case where the near-infrared absorbing film is between the microelectronic substrate and a photoresist film.Type: ApplicationFiled: April 2, 2014Publication date: July 31, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wu-Song Huang, Martin Glodde, Dario L. Goldfarb, Wai-Kin Li, Sen Liu, Libor Vyklicky
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Publication number: 20140202530Abstract: A light harvesting system employing a photoresponsive layer having a plurality of light input ports that are formed in a light input surface of the layer. Light received by the light input ports is admitted into the photoresponsive layer an incidence angle that is greater than a predetermined critical angle, such as the angle of the total internal reflection (TIR). The admitted light is retained in the photoresponsive layer and is propagated within the layer until it is substantially absorbed.Type: ApplicationFiled: March 22, 2014Publication date: July 24, 2014Inventor: Sergiy Vasylyev
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Patent number: 8772895Abstract: Provided is a semiconductor image sensor device that includes a non-scribe-line region and a scribe-line region. The image sensor device includes a first substrate portion disposed in the non-scribe-line region. The first substrate portion contains a doped radiation-sensing region. The image sensor device includes a second substrate portion disposed in the scribe-line region. The second substrate portion has the same material composition as the first substrate portion. Also provided is a method of fabricating an image sensor device. The method includes forming a plurality of radiation-sensing regions in a substrate. The radiation-sensing regions are formed in a non-scribe-line region of the image sensor device. The method includes forming an opening in a scribe-line region of the image sensor device by etching the substrate in the scribe-line region. A portion of the substrate remains in the scribe-line region after the etching. The method includes filling the opening with an organic material.Type: GrantFiled: November 28, 2011Date of Patent: July 8, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shou-Shu Lu, Hsun-Ying Huang, Hsin-Jung Huang, Chun-Mao Chiu, Chia-Chi Hsiao, Yung-Cheng Chang
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Publication number: 20140183681Abstract: A backside illumination image sensor structure comprises an image sensor formed adjacent to a first side of a semiconductor substrate, wherein a first dielectric layer formed over the first side of the semiconductor substrate and an interconnect layer formed over the first dielectric layer. The image sensor structure further comprises a backside illumination film formed over a second side of the semiconductor substrate and a first silicon halogen compound layer formed between the second side of the semiconductor substrate and the backside illumination film.Type: ApplicationFiled: December 27, 2012Publication date: July 3, 2014Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Shiu-Ko JangJian, Chin-Nan Wu, Chun-Che Lin
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Patent number: 8759933Abstract: Disclosed herein is a solid-state image pickup element, including: a semiconductor substrate; a pixel portion which is formed on the semiconductor substrate and in which a plurality of pixels each having a photoelectric conversion portion are arranged; an insulating layer formed on the semiconductor substrate so as to cover the photoelectric conversion portion; a hole portion formed in the insulating layer and above the photoelectric conversion portion; a silicon nitride layer formed so as to cover a bottom surface and a side surface of the hole portion; and a buried layer formed on the silicon nitride layer, wherein the silicon nitride layer is formed so as to contain a silicon nitride formed by utilizing an atomic layer deposition method.Type: GrantFiled: May 27, 2010Date of Patent: June 24, 2014Assignee: Sony CorporationInventors: Yoshinori Toumiya, Kiyotaka Tabuchi, Yasuyuki Shiga, Iwao Sugiura, Naoyuki Miyashita, Masanori Iwasaki, Katsunori Kokubun, Tomohiro Yamazaki
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Publication number: 20140167198Abstract: A back-illuminated silicon photodetector has a layer of Al2O3 deposited on a region of a silicon oxide surface that is left uncovered, while deposition is inhibited in another region by a contact shadow mask. The Al2O3 layer is an antireflection coating. In addition, the Al2O3 layer can also provide a chemically resistant separation layer between the silicon oxide surface and additional antireflection coating layers. In one embodiment, the silicon photodetector has a delta-doped layer near (within a few nanometers of) the silicon oxide surface. The Al2O3 layer is expected to provide similar antireflection properties and chemical protection for doped layers fabricated using other methods, such as MBE, ion implantation and CVD deposition.Type: ApplicationFiled: February 21, 2014Publication date: June 19, 2014Inventors: Michael E. Hoenk, Frank Greer, Shouleh Nikzad
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Publication number: 20140167197Abstract: A backside illumination image sensor structure comprises an image sensor formed adjacent to a first side of a semiconductor substrate, wherein an interconnect layer is formed over the first side of the semiconductor substrate, a backside illumination film formed over a second side of the semiconductor substrate, a metal shielding layer formed over the backside illumination film and a via embedded in the backside illumination film and coupled between the metal shielding layer and the semiconductor substrate.Type: ApplicationFiled: December 18, 2012Publication date: June 19, 2014Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Shiu-Ko JangJian, Chi-Cherng Jeng, Volume Chien, Ying-Lang Wang
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Patent number: 8754495Abstract: A method of fabricating a photodiode array having different photodiode structures includes providing a semiconductor substrate having first and second diode areas including a bottom substrate portion doped with a first doping type, an intrinsic layer, and a top silicon layer doped with a second doping type. The second diode areas are implanted with the second doping type. A dopant concentration in the surface of the second diode areas is at least three times higher than in the first diode areas. The top silicon layer is thermally oxidized to form a thermal silicon oxide layer to provide a bottom Anti-Reflective Coating (ARC) layer. The second diode areas grow thermal silicon oxide thicker as compared to the first diode areas. A top ARC layer is deposited on the bottom ARC layer. First PDs are provided in the first diode areas and second PDs provided in the second diode areas.Type: GrantFiled: April 26, 2013Date of Patent: June 17, 2014Assignee: Texas Instruments IncorporatedInventors: Hiroyuki Tomomatsu, Motoaki Kusamaki, Kohichi Kubota, Yuta Masuda, Akihiro Sugihara, Hiroshi Sera Kitada, Takeshi Konno
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Publication number: 20140159187Abstract: A manufacturing method of antireflection substrate structure includes: providing a silicon wafer having a first rough surface; forming an antireflection optical film on the silicon wafer, wherein the antireflection optical film conformally overlays the first rough surface; performing a surface treatment on the antireflection optical film so that the antireflection optical film has a hydrophilic surface, and the hydrophilic surface is relatively far away from the silicon wafer; dropping a colloidal solution on the hydrophilic surface of the antireflection optical film, wherein the colloidal solution includes a solution and multiple nano-balls and the nano-balls are adhered onto the hydrophilic surface; and performing an etching process on the hydrophilic surface of the antireflection optical film by taking the nano-balls as an etching mask so as to form a second rough surface, wherein the roughness of the second rough surface is different from the roughness of the first rough surface.Type: ApplicationFiled: February 7, 2013Publication date: June 12, 2014Applicants: TATUNG UNIVERSITY, TATUNG COMPANYInventors: Chiung-Wei Lin, Jheng-Jie Ruan, Yi-Liang Chen, Hsien-Chieh Lin
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Patent number: 8742524Abstract: A semiconductor device, which is configured as a backside illuminated solid-state imaging device, includes a stacked semiconductor chip which is formed by bonding two or more semiconductor chip units to each other and in which, at least, a pixel array and a multi-layer wiring layer are formed in a first semiconductor chip unit and a logic circuit and a multi-layer wiring layer are formed in a second semiconductor chip unit; a semiconductor-removed region in which a semiconductor section of a part of the first semiconductor chip unit is completely removed; and a plurality of connection wirings which is formed in the semiconductor-removed region and connects the first and second semiconductor chip units to each other.Type: GrantFiled: December 6, 2011Date of Patent: June 3, 2014Assignee: Sony CorporationInventors: Kazuichiroh Itonaga, Machiko Horiike
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Patent number: 8742523Abstract: A semiconductor device contains a photodiode which has a plurality of p-n junctions disposed in a stack. Two contact structures on the semiconductor device are connected across at least one of the junctions to allow electrical connection to an external detection circuit, so that signal current from incident light on the photodiode which generates electron-hole pairs across the connected junction may be sensed by the external detection circuit. At least one of the junctions is electrically shorted at the semiconductor device, so that signal current from the shorted junction may not be sensed by the external detection circuit.Type: GrantFiled: February 15, 2013Date of Patent: June 3, 2014Assignee: Texas Instruments IncorporatedInventors: Henry Litzmann Edwards, Dimitar Trifonov Trifonov
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Patent number: 8729654Abstract: This disclosure provides systems, methods, and apparatus related to semiconductor photomultipliers. In one aspect, a device includes a p-type semiconductor substrate, the p-type semiconductor substrate having a first side and a second side, the first side of the p-type semiconductor substrate defining a recess, and the second side of the p-type semiconductor substrate being doped with n-type ions. A conductive material is disposed in the recess. A p-type epitaxial layer is disposed on the second side of the p-type semiconductor substrate. The p-type epitaxial layer includes a first region proximate the p-type semiconductor substrate, the first region being implanted with p-type ions at a higher doping level than the p-type epitaxial layer, and a second region disposed on the first region, the second region being doped with p-type ions at a higher doping level than the first region.Type: GrantFiled: October 15, 2012Date of Patent: May 20, 2014Assignee: The Regents of the University of CaliforniaInventors: Woon-Seng Choong, Stephen E. Holland
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Patent number: 8717468Abstract: A solid-state imaging device is disclosed. The solid-state image device has pixels in which an absorption film that absorbs short wavelength-side light is formed on a photoelectric conversion portion for desired color light through an insulation film.Type: GrantFiled: May 12, 2009Date of Patent: May 6, 2014Assignee: Sony CorporationInventor: Kazuichiro Itonaga
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Patent number: 8711263Abstract: A solid-state imaging device includes a pixel region formed on a semiconductor substrate, an effective pixel region and a shielded optical black region in the pixel region, a multilayer wiring layer formed on a surface of the side opposite to a light incident side of the semiconductor substrate, a supporting substrate bonded to a surface of the multilayer wiring layer side, and an antireflection structure that is formed on the bonding surface side of the supporting substrate.Type: GrantFiled: October 19, 2011Date of Patent: April 29, 2014Assignee: Sony CorporationInventors: Kenju Nishikido, Kazunori Nagahata
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Patent number: 8704324Abstract: A solid state imaging device including a semiconductor layer comprising a plurality of photodiodes, a first antireflection film located over a first surface of the semiconductor layer, a second antireflection film located over the first antireflection film, a light shielding layer having side surfaces which are adjacent to at least one of first and the second antireflection film.Type: GrantFiled: April 18, 2013Date of Patent: April 22, 2014Assignee: Sony CorporationInventors: Susumu Hiyama, Kazufumi Watanabe
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Patent number: 8698170Abstract: A display apparatus includes a first insulating substrate including a display area in which a first opening is formed, as well as a non-display area. A second insulating substrate faces the first insulating substrate. The second insulating substrate includes a shutter part having a second opening corresponding to the first opening. The shutter part moves between two different positions to transmit or block light according to an overlap between the first opening and the second opening.Type: GrantFiled: August 10, 2011Date of Patent: April 15, 2014Assignee: Samsung Display Co., Ltd.Inventors: Yu-Kwan Kim, Junghan Shin, Jae Byung Park
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Patent number: 8686527Abstract: A semiconductor device is provided. The semiconductor device includes metallization layers supported by a substrate, a diode and a partially doped silicon layer disposed over the metallization layers, a buffer layer disposed over the diode and the partially doped silicon layer; and an anti-reflective coating disposed over the buffer layer, the anti-reflective coating formed from a porous silicon.Type: GrantFiled: July 24, 2012Date of Patent: April 1, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shyh-Fann Ting, Yen-Ting Chiang, Ching-Chun Wang
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Patent number: 8685856Abstract: A fabrication method of an anti-reflection structure includes the steps of: forming a resin film having micro-particles dispersed therein on a surface of a substrate; forming a protrusion dummy pattern on the resin film by etching the resin film using the micro-particles in the resin film as a mask while gradually etching the micro-particles; and forming a protrusion pattern on the surface of the substrate by etching back the surface of the substrate together with the resin film having the protrusion dummy pattern formed thereon, and transferring a surface shape of the protrusion dummy pattern formed on a surface of the resin film to the surface of the substrate.Type: GrantFiled: March 22, 2010Date of Patent: April 1, 2014Assignee: Sony CorporationInventors: Kensaku Maeda, Kaoru Koike, Tohru Sasaki, Tetsuya Tatsumi
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Patent number: 8680637Abstract: A back-illuminated silicon photodetector has a layer of Al2O3 deposited on a silicon oxide surface that receives electromagnetic radiation to be detected. The Al2O3 layer has an antireflection coating deposited thereon. The Al2O3 layer provides a chemically resistant separation layer between the silicon oxide surface and the antireflection coating. The Al2O3 layer is thin enough that it is optically innocuous. Under deep ultraviolet radiation, the silicon oxide layer and the antireflection coating do not interact chemically. In one embodiment, the silicon photodetector has a delta-doped layer near (within a few nanometers of) the silicon oxide surface. The Al2O3 layer is expected to provide similar protection for doped layers fabricated using other methods, such as MBE, ion implantation and CVD deposition.Type: GrantFiled: June 23, 2011Date of Patent: March 25, 2014Assignee: California Institute of TechnologyInventors: Michael E. Hoenk, Frank Greer, Shouleh Nikzad
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Patent number: 8674401Abstract: This invention comprises photodiodes, optionally organized in the form of an array, including p+ deep diffused regions or p+ and n+ deep diffused regions. More specifically, the invention permits one to fabricate thin 4 inch and 6 inch wafer using the physical support provided by a n+ deep diffused layer and/or p+ deep diffused layer. Consequently, the present invention delivers high device performances, such as low crosstalk, low radiation damage, high speed, low leakage dark current, and high speed, using a thin active layer.Type: GrantFiled: July 8, 2009Date of Patent: March 18, 2014Assignee: OSI Optoelectronics, Inc.Inventors: Peter Steven Bui, Narayan Dass Taneja
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Patent number: 8673793Abstract: A method for calculating an offset value for aligned deposition of a second pattern onto a first pattern, comprising steps of: (a) loading a substrate with the first pattern on a surface of the substrate into a pattern recognition device at an original position inside the pattern recognition device; (b) determining a coordinate of a prescribed point of the first pattern by the pattern recognition device; (c) superimposing the second pattern onto the first pattern on the surface of the substrate; (d) bringing back the substrate with the first pattern and the second pattern into the original position inside the pattern recognition device; (e) determining a coordinate of a prescribed point of the second pattern by the pattern recognition device; wherein the prescribed point of the first pattern corresponds to the prescribed point of the second pattern; and (f) calculating the offset value between the first pattern and the second pattern.Type: GrantFiled: January 25, 2012Date of Patent: March 18, 2014Inventor: Andreas Meisel
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Patent number: 8669466Abstract: Electrical contact to the front side of a photovoltaic cell is provided by an array of conductive through-substrate vias, and optionally, an array of conductive blocks located on the front side of the photovoltaic cell. A dielectric liner provides electrical isolation of each conductive through-substrate via from the semiconductor material of the photovoltaic cell. A dielectric layer on the backside of the photovoltaic cell is patterned to cover a contiguous region including all of the conductive through-substrate vias, while exposing a portion of the backside of the photovoltaic cell. A conductive material layer is deposited on the back surface of the photovoltaic cell, and is patterned to form a first conductive wiring structure that electrically connects the conductive through-substrate vias and a second conductive wiring structure that provides electrical connection to the backside of the photovoltaic cell.Type: GrantFiled: February 1, 2012Date of Patent: March 11, 2014Assignee: International Business Machines CorporationInventors: Supratik Guha, Yves Martin, Naim Moumen, Robert L. Sandstrom, Theodore G. van Kessel
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Publication number: 20140061840Abstract: A manufacturing method for an edge illuminated type photodiode has: a process of forming an impurity-doped layer of a first conductivity type in each of device forming regions in a semiconductor substrate; a process of forming an impurity-doped layer of a second conductivity type in each of the device forming regions; a process of forming a trench extending in a direction of thickness of the semiconductor substrate from a principal surface, at a position of a boundary between adjacent device forming regions, by etching to expose side faces of the device forming regions; a process of forming an insulating film on the exposed side faces of the device forming regions; a process of forming an electrode for each corresponding impurity-doped layer on the principal surface side of the semiconductor substrate; and a process of implementing singulation of the semiconductor substrate into the individual device forming regionsType: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hiroshi OGURI, Yoshitaka ISHIKAWA, Akira SAKAMOTO, Tomoya TAGUCHI, Yoshimaro FUJII
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Patent number: 8664031Abstract: A semiconductor device manufacturing method including a process of forming a silicon oxide film by thermally oxidizing silicon in the atmosphere of oxygen gas or in the atmosphere of mixed gas of oxygen and hydrogen at a temperature of 800° C. or more in the state in which at least the silicon surface serving as a light-receiving portion of a photodiode is exposed, and a process of depositing a silicon nitride film on the silicon oxide film. At least the silicon oxide film and the silicon nitride film are finally left on the surface of the photodiode as an antireflection film.Type: GrantFiled: November 17, 2008Date of Patent: March 4, 2014Assignee: Sony CorporationInventor: Tomotaka Fujisawa
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Patent number: 8637951Abstract: A semiconductor light receiving element comprises: a substrate, a semiconductor layer of a first conductivity type formed on the substrate, a non-doped semiconductor light absorbing layer formed on the semiconductor layer of the first conductivity type, a semiconductor layer of a second conductivity type formed on the non-doped semiconductor light absorbing layer, and an electro-conductive layer formed on the semiconductor layer of the second conductivity type. A plurality of openings, periodically arrayed, are formed in a laminated body composed of the electro-conductive layer, the semiconductor layer of the second conductivity type, and the non-doped semiconductor light absorbing layer. The widths of the openings are less than or equal to the wavelength of incident light, and the openings pass through the electro-conductive layer and the semiconductor layer of the second conductivity type to reach the non-doped semiconductor light absorbing layer.Type: GrantFiled: January 9, 2009Date of Patent: January 28, 2014Assignee: NEC CorporationInventors: Daisuke Okamoto, Junichi Fujikata, Kenichi Nishi
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Patent number: 8625016Abstract: Image sensors include a second photoelectric conversion device disposed in a lower portion of a substrate and a first photoelectric conversion device extending between the secondary photoelectric conversion device and a light receiving surface of the substrate. Electrical isolation between the first and second photoelectric conversion devices is provided by a photoelectron barrier, which may be an optically transparent electrically insulating material. MOS transistors may be utilized to transfer photoelectrons generated within the first and second photoelectric conversion devices to a floating diffusion region within the image sensor. These transistors may represent one example of means for transferring photoelectrons generated in the first and second photoelectric conversion devices to a floating diffusion region in the substrate, in response to first and second gating signals, respectively. The first and second gating signals may be active during non-overlapping time intervals.Type: GrantFiled: December 2, 2010Date of Patent: January 7, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Eric Fossum, Suk Pil Kim, Yoon Dong Park, Hoon Sang Oh, Hyung Jin Bae, Tae Eung Yoon
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Publication number: 20140001521Abstract: An optoelectronic device for detecting electromagnetic radiation and including: a body of semiconductor material delimited by a main surface and including a first region and a second region that form a junction; and a recess formed in the body, which extends from the main surface and is delimited at least by a first wall, the first wall being arranged transverse to the main surface. The junction faces the first wall.Type: ApplicationFiled: July 2, 2013Publication date: January 2, 2014Inventor: Alberto Pagani
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Patent number: 8614494Abstract: 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: GrantFiled: March 2, 2012Date of Patent: December 24, 2013Assignee: Sony CorporationInventor: Syogo Kurogi
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Patent number: 8610230Abstract: A semiconductor device including a substrate and an anti-reflective coating disposed upon the substrate, the anti-reflective coating and the substrate forming an interface, a carbon concentration and a chlorine concentration less than an oxygen concentration at the interface.Type: GrantFiled: November 1, 2012Date of Patent: December 17, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Jun-Nan Nian, Shih-Chieh Chang, Chi-Cherng Jeng, Shiu-Ko JangJian, Yu-Te Hung
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Patent number: 8603852Abstract: Disclosed herein is a method of manufacturing a solid state imaging device, including the steps of: forming a light receiving portion in a light receiving area of a semiconductor substrate; forming a pad portion in a pad area of the semiconductor substrate; forming a microlens material layer over the light receiving portion and the pad portion; providing the microlens material layer with a microlens corresponding to the light receiving portion; forming a low-reflection material layer on the microlens material layer; etching the microlens material layer and the low-reflection material layer over the pad portion to form an opening; and imparting hydrophilicity to a surface of the low-reflection material layer and an inside portion of the opening by a normal temperature oxygen radical treatment.Type: GrantFiled: June 2, 2010Date of Patent: December 10, 2013Assignee: Sony CorporationInventors: Yoshinori Toumiya, Ina Hori, Tadayuki Dofuku, Hitomi Kamiya, Atsushi Yamamoto, Taichi Natori