X-ray, Gamma-ray, Or High Energy Radiation Imagers (epo) Patents (Class 257/E27.146)
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Patent number: 11835666Abstract: An X-ray radiation detector includes a semiconductor material plate, at least one cathode located on a first side of the semiconductor material plate, and at least one anode located on a second side of the semiconductor material plate. The semiconductor material plate thickness is at least 1.9 mm. The X-ray radiation detector is configured to operate at an absolute value of applied bias voltage of 1050 VDC to 1500 VDC, such that an electric field of at least 550 VDC/mm is generated in the semiconductor material plate.Type: GrantFiled: July 30, 2021Date of Patent: December 5, 2023Assignee: REDLEN TECHNOLOGIES, INC.Inventors: James Balcom, Krzysztof Iniewski, Elmaddin Guliyev
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Patent number: 11710708Abstract: An integrated circuit structure including a substrate having an upper surface; a gallium nitride layer disposed on the upper surface of the substrate; and a photoconductive semiconductor switch laterally disposed alongside a transistor on the gallium nitride layer integrated into the integrated circuit structure; an EMF shield enclosing the substrate, the gallium nitride layer and the photoconductive semiconductor switch laterally disposed alongside the transistor on the gallium nitride layer integrated into the integrated circuit structure; and a signal line electronically coupled with the photoconductive semiconductor switch, the signal line penetrating the EMF shield.Type: GrantFiled: August 19, 2021Date of Patent: July 25, 2023Assignee: RAYTHEON COMPANYInventors: Matthew DeJarld, Jeffrey R. LaRoche, Susan C. Trulli
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Patent number: 11194058Abstract: A radiation imaging apparatus is provided. The apparatus comprises pixels configured to detect radiation with a first sensitivity and a second sensitivity lower than the first sensitivity. Each of the pixels starts an operation for accumulating a signal with the first sensitivity in accordance with a start of irradiation of the radiation imaging apparatus with radiation, samples an accumulated signal as a first signal after lapse of a first time shorter than a period of irradiation with radiation since a start of an operation for accumulating a signal, switches to the second sensitivity, and accumulates a signal, samples an accumulated signal as a second signal in accordance with an end of irradiation of the radiation imaging apparatus with radiation, and outputs the first signal and the second signal to generate a radiation image based on the first signal and the second signal.Type: GrantFiled: April 25, 2019Date of Patent: December 7, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Yuichi Naito
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Patent number: 8754413Abstract: An X-ray detection device includes a gate electrode and a lower electrode on a substrate and laterally spaced from each other, a dielectric layer covering the gate electrode and the lower electrode, and a conductive pattern on the dielectric layer at a side of the gate electrode adjacent to the lower electrode and overlapping the lower electrode. The device also includes a source electrode spaced apart from the conductive pattern that is on the dielectric layer at the other side of the gate electrode, and an interlayer insulation layer covering the conductive pattern and the source electrode. A collector electrode, a photoelectric conversion layer, and a bias electrode are sequentially stacked on the interlayer insulation layer.Type: GrantFiled: November 16, 2011Date of Patent: June 17, 2014Assignee: Samsung Display Co., Ltd.Inventor: Kyung Soo Lee
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Patent number: 8501573Abstract: An X-ray image sensor having scintillating material embedded into wave-guide structures fabricated in a CMOS image sensor (CIS). After the CIS has been fabricated, openings (deep pores) are formed in the back side of the CIS wafer. These openings terminate at a distance of about 1 to 5 microns below the upper silicon surface of the wafer. The depth of these openings can be controlled by stopping on a buried insulating layer, or by stopping on an epitaxial silicon layer having a distinctive doping concentration. The openings are aligned with corresponding photodiodes of the CIS. The openings may have a shape that narrows as approaching the photodiodes. A thin layer of a reflective material may be formed on the sidewalls of the openings, thereby improving the efficiency of the resulting waveguide structures. Scintillating material (e.g., CsI(Tl)) is introduced into the openings using a ForceFillâ„¢ technology or by mechanical pressing.Type: GrantFiled: February 20, 2009Date of Patent: August 6, 2013Assignee: Tower Semiconductor Ltd.Inventors: Yakov Roizin, Amos Fenigstein, Avi Strum, Alexey Heiman, Doron Pardess
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Patent number: 8134151Abstract: A thin film transistor including: source and drain electrodes, an active layer that contacts the source and drain electrodes and contains an oxide semiconductor, a gate electrode that controls current flowing between the source and drain electrodes via the active layer, a first insulating film that separates the gate electrode from the source and drain electrodes and the active layer, a bias electrode that is arranged at the opposite side of the active layer from the gate electrode, and has an electric potential fixed independently from the gate electrode, and a second insulating film that separates the bias electrode from the source and drain electrodes and the active layer.Type: GrantFiled: August 11, 2009Date of Patent: March 13, 2012Assignee: FUJIFILM CorporationInventor: Shinji Imai
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Publication number: 20120007197Abstract: A solid-state imaging apparatus comprising a plurality of pixels each including a photoelectric conversion element, and a light shielding layer which covers the photoelectric conversion element is provided. The light shielding layer comprises a first light shielding portion which covers at least part of a region between the photoelectric conversion elements that are adjacent to each other, and a second light shielding portion for partially shielding light incident on the photoelectric conversion element of each of the plurality of pixels. An aperture is provided for the light shielding layer, the remaining component of the incident light passing through the aperture. A shape of the aperture includes a cruciform portion including a portion extending in a first direction and a portion extending in a second direction that intersects the first direction.Type: ApplicationFiled: June 10, 2011Publication date: January 12, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Shin Kikuchi, Yuichiro Yamashita, Masaru Fujimura, Shoji Kono, Yu Arishima, Shinichiro Shimizu
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Patent number: 8093671Abstract: Device and method of forming a device in which a substrate (10) is fabricated with at least part of an electronic circuit for processing signals. A bulk single crystal material (14) is formed on the substrate, either directly on the substrate (10) or with an intervening thin film layer or transition region (12). A particular application of the device is for a radiation detector.Type: GrantFiled: September 13, 2010Date of Patent: January 10, 2012Assignee: Kromek LimitedInventors: Arnab Basu, Max Robinson, Benjamin John Cantwell, Andy Brinkman
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Patent number: 8093095Abstract: Device and method of forming a device in which a substrate (10) is fabricated with at least part of an electronic circuit for processing signals. A bulk single crystal material (14) is formed on the substrate, either directly on the substrate (10) or with an intervening thin film layer or transition region (12). A particular application of the device is for a radiation detector.Type: GrantFiled: December 21, 2006Date of Patent: January 10, 2012Assignee: Kromek LimitedInventors: Arnab Basu, Max Robinson, Ben Cantwell, Andy Brinkman
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Patent number: 8044476Abstract: A radiation detector comprising a II-VI compound semiconductor substrate that absorbs radiation having a first energy, a II-VI compound semiconductor layer of a first conductivity type provided on a main surface of the II-VI compound semiconductor substrate, a metal layer containing at least one of a group III element and a group V element provided on the II-VI compound semiconductor layer, a IV semiconductor layer having a second conductivity type opposite to the first conductivity type provided on the metal layer, and a IV semiconductor substrate that absorbs radiation having a second energy different from the first energy provided on the IV semiconductor layer.Type: GrantFiled: June 16, 2006Date of Patent: October 25, 2011Assignee: National University Corporation Shizuoka UniversityInventors: Yoshinori Hatanaka, Toru Aoki
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Patent number: 7973312Abstract: A display device includes a main body, a support stand, and a display portion. The display portion includes a pixel having a TFT and a capacitor. The capacitor includes a capacitor electrode on an insulating surface, an insulating film on the capacitor electrode, and a pixel electrode of the TFT on the insulating film.Type: GrantFiled: March 22, 2010Date of Patent: July 5, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Jun Koyama, Setsuo Nakajima
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Patent number: 7964903Abstract: A thin film transistor array panel for an X-ray detector includes a dummy pixel including a photo diode and a TFT for detecting leakage current. The photo diode includes first and second electrodes (178,195) facing each other and a photo-conductive layer (800) disposed between the first electrode and the second electrode. The TFT includes a semiconductor layer (150), a gate electrode (123), a source electrode (173) connected to a data line, a drain electrode (175) connected to the photo diode. The dummy pixel further includes a light blocking layer (196) for blocking light incident on the photo diode. Alternatively, the semiconductor layer is disconnected between the source electrode and the drain electrode.Type: GrantFiled: April 19, 2010Date of Patent: June 21, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: In-Su Joo, Joon-Hoo Choi
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Patent number: 7812317Abstract: A radiation detecting apparatus according to the present invention includes: pixels including switching elements arranged on an insulating substrate and conversion elements arranged on the switching elements to convert a radiation into electric carriers, the switching elements and the conversion elements are connected with each other, the pixels two-dimensionally arranged on the insulating substrate in a matrix; gate wiring commonly connected with a plurality of switching elements arranged in a row direction on the insulating substrate; signal wiring commonly connected with a plurality of switching elements arranged in a column direction; and a plurality of insulating films arranged between the switching elements and the conversion elements, wherein at least one of the gate wiring and the signal wiring is arranged to be put between the plurality of insulating films.Type: GrantFiled: September 5, 2008Date of Patent: October 12, 2010Assignee: Canon Kabushiki KaishaInventors: Minoru Watanabe, Chiori Mochizuki, Keiichi Nomura, Takamasa Ishii
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Patent number: 7718460Abstract: A method for manufacturing a solid state imaging device includes steps of forming a photodiode layer buried in a semiconductor substrate by ion injection and of forming a shielding layer buried in the photodiode layer by ion injection. At least in the ion injection process in the step of forming the shielding layer, an ion injection pause period is provided at least one time during whole ion injection step. According to the method, crystal defects are prevented from generating even if ion injection is performed with high energy, thereby suppressing dark current without complexity in manufacturing process.Type: GrantFiled: May 30, 2008Date of Patent: May 18, 2010Assignee: Kabushiki Kaisha ToshibaInventor: Shu Sasaki
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Patent number: 7705354Abstract: A display device includes a main body, a support stand, and a display portion. The display portion includes a pixel having a TFT and a capacitor. The capacitor includes a capacitor electrode on an insulating surface, an insulating film on the capacitor electrode, and a pixel electrode of the TFT on the insulating film.Type: GrantFiled: September 7, 2004Date of Patent: April 27, 2010Assignee: Semiconductor Energy Laboratory Co., LtdInventors: Shunpei Yamazaki, Jun Koyama, Setsuo Nakajima
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Publication number: 20090085076Abstract: According to a method of manufacturing photo sensor, a diode can be formed by one lithography step. In addition, the source/drain is arranged on a gate dielectric layer to avoid the conventional plug structure. Moreover, a diode stack is formed on one of the source/drain to simplify the structure of the photo sensor.Type: ApplicationFiled: May 6, 2008Publication date: April 2, 2009Applicant: PRIME VIEW INTERNATIONAL CO., LTD.Inventors: Wei-Chou Lan, Henry Wang, Lee-Tyng Chen
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Publication number: 20090026508Abstract: The effective photosensitive area of a solid-state photosensor is controlled with a multitude of electrodes (E1, . . . , Ei, . . . , En) on top of an insulator layer (O) covering a semiconductor substrate (S). Photogenerated charge carriers move laterally under the influence of the voltage distribution on the various electrodes (E1, . . . , Ei, . . . , En), and they are collected at the two ends of the photosensor in diffusions (D1, D2). The voltage distribution on the electrodes (E1, . . . , Ei, . . . , En) is such that the voltage at the two furthermost electrodes (E1, En) is maximum (if photoelectrons are collected), minimum at an interior electrode (Ei), and monotonously decreasing in between. The lateral position of the electrode (Ei) with minimum voltage defines the effective photosensitive area of the photosensor.Type: ApplicationFiled: July 27, 2005Publication date: January 29, 2009Inventor: Peter Seitz
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Patent number: 7435968Abstract: A radiation detecting apparatus according to the present invention includes: pixels including switching elements arranged on an insulating substrate and conversion elements arranged on the switching elements to convert a radiation into electric carriers, the switching elements and the conversion elements are connected with each other, the pixels two-dimensionally arranged on the insulating substrate in a matrix; gate wiring commonly connected with a plurality of switching elements arranged in a row direction on the insulating substrate; signal wiring commonly connected with a plurality of switching elements arranged in a column direction; and a plurality of insulating films arranged between the switching elements and the conversion elements, wherein at least one of the gate wiring and the signal wiring is arranged to be put between the plurality of insulating films.Type: GrantFiled: August 28, 2006Date of Patent: October 14, 2008Assignee: Canon Kabushiki KaishaInventors: Minoru Watanabe, Chiori Mochizuki, Keiichi Nomura, Takamasa Ishii
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Patent number: 7202095Abstract: A measurement substrate 100 in which a silicon oxide film 102, a polysilicon layer 103 and a titanium silicide layer 104 are formed over a silicon substrate 101 in this order is prepared. The measurement substrate 100 is irradiated with X-rays so that the proportions of three types of silicides with different compositions in the titanium silicide layer 104 are measured based on the intensity of hard X-rays emitted from oxygen in the silicon oxide film 102 and the intensity of hard X-rays emitted from titanium in the titanium silicide layer 104.Type: GrantFiled: January 7, 2004Date of Patent: April 10, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiko Tsuzumitani, Yasutoshi Okuno
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Patent number: 7176507Abstract: A solid state image sensing device comprises a first semiconductor region of first conductivity type, a second semiconductor region of second conductivity type provided in the first semiconductor region, a third semiconductor region of second conductivity type provided in the first semiconductor region with a space from the second semiconductor region, a gate electrode provided on the first semiconductor region between the second semiconductor region and the third semiconductor region, a gate insulator layer interposed between the first semiconductor region and the gate electrode, and a fourth semiconductor region of second conductivity type provided below the second semiconductor region in the first semiconductor region.Type: GrantFiled: January 5, 2005Date of Patent: February 13, 2007Assignee: Kabushiki Kaisha ToshibaInventor: Hisanori Ihara
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Patent number: RE42157Abstract: A photoelectric converter of a high signal-to-noise ratio, low cost, high productivity and stable characteristics and a system including the above photoelectric converter. The photoelectric converter includes a photoelectric converting portion in which a first electrode layer, an insulating layer for inhibiting carriers from transferring, a photoelectric converting semiconductor layer of a non-single-crystal type, an injection blocking layer for inhibiting a first type of carriers from being injected into the semiconductor layer and a second electrode layer are laminated in this order on an insulating substrate.Type: GrantFiled: February 26, 2008Date of Patent: February 22, 2011Assignee: Canon Kabushiki KaishaInventors: Noriyuki Kaifu, Hidemasa Mizutani, Shinichi Takeda, Isao Kobayashi, Satoshi Itabashi