Patents by Inventor Ikuko Inoue
Ikuko Inoue has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9214488Abstract: According to one embodiment, a solid state imaging device includes a semiconductor substrate comprising a first surface and a second surface opposite the first surface; a circuit at a side of the first surface of the semiconductor substrate; a pixel in the semiconductor substrate and converting light from a side of the second surface into electric charge; and an element at a side of the second surface of the semiconductor substrate. The pixel includes a photo diode in the semiconductor substrate at the side of the first surface, and the photo diode includes a diffusion layer in an impurity region in the semiconductor substrate at the side of the first surface.Type: GrantFiled: March 7, 2014Date of Patent: December 15, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventor: Ikuko Inoue
-
Patent number: 9136291Abstract: A solid-state imaging device includes an imaging element, an external terminal, an insulating film, a penetration electrode, a first insulating interlayer, a first electrode, and a first contact plug. The imaging element is formed on a first main surface of a semiconductor substrate. The external terminal is formed on a second main surface facing the first main surface of the substrate. The insulating film is formed in a through-hole formed in the substrate. The penetration electrode is formed on the insulating film in the through-hole and electrically connected to the external terminal. The first insulating interlayer is formed on the first main surface of the substrate and the penetration electrode. The first electrode is formed on the first insulating interlayer. The first contact plug is formed in the first insulating interlayer between the penetration electrode and the first electrode to electrically connect the penetration electrode and the first electrode.Type: GrantFiled: June 7, 2012Date of Patent: September 15, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Mariko Saito, Ikuko Inoue
-
Patent number: 9006807Abstract: According to one embodiment, a solid-state image sensing device includes a semiconductor substrate having a first and second surface, an insulating film covering an element on the first surface, a pixel array including pixels configured to photoelectrically convert light applied on the side of the second surface, contact regions in the semiconductor substrate, one or more through-electrodes respectively provided in the contact regions, and first pads provided on the side of the second surface to correspond to the respective contact regions. The first pad extends in a first direction from the contact regions toward the pixel array.Type: GrantFiled: March 22, 2013Date of Patent: April 14, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Ikuko Inoue, Masahiro Baba, Eiji Sato, Haruhide Kikuchi
-
Publication number: 20150035103Abstract: According to one embodiment, a solid state imaging device includes a semiconductor substrate comprising a first surface and a second surface opposite the first surface; a circuit at a side of the first surface of the semiconductor substrate; a pixel in the semiconductor substrate and converting light from a side of the second surface into electric charge; and an element at a side of the second surface of the semiconductor substrate. The pixel includes a photo diode in the semiconductor substrate at the side of the first surface, and the photo diode includes a diffusion layer in an impurity region in the semiconductor substrate at the side of the first surface.Type: ApplicationFiled: March 7, 2014Publication date: February 5, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Ikuko INOUE
-
Publication number: 20140110771Abstract: According to one embodiment, a solid-state imaging device includes a semiconductor substrate including a pixel area and a peripheral circuit area, a first line provided in the peripheral circuit area and on a first principal surface of the semiconductor substrate, a second line provided in the peripheral circuit area and on a second principal surface of the semiconductor substrate, a first through electrode connected to one end of the first line and one end of the second line and passing through the semiconductor substrate, and a second through electrode connected to the other end of the first line and the other end of the second line and passing through the semiconductor substrate.Type: ApplicationFiled: July 23, 2013Publication date: April 24, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomoyuki YODA, Jiro Hayakawa, Ikuko Inoue, Eiji Sato, Takeshi Kitahara
-
Patent number: 8580652Abstract: According to one embodiment, a manufacturing method of a semiconductor device is disclosed. The semiconductor device includes a semiconductor substrate having first and second main surfaces, and a through hole passing through between the first and second main surfaces, a pad on the first main surface, a through electrode in the through hole, and a connection structure including a connection portion to directly connect the pad and the through electrode, and another connection portion to indirectly connect the pad and the through electrode. The method includes forming an isolation region in the first main surface, the isolation region being in a region where the through electrode is to be formed and being in a region other than the region where the through hole is to be formed, forming the pad, and forming the through hole by processing the substrate to expose a part of the pad.Type: GrantFiled: September 3, 2010Date of Patent: November 12, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Atsuko Kawasaki, Kenichiro Hagiwara, Ikuko Inoue, Kazutaka Akiyama, Itsuko Sakai, Mie Matsuo, Masahiro Sekiguchi, Yoshiteru Koseki, Hiroki Neko, Koushi Tozuka, Kazuhiko Nakadate, Takuto Inoue
-
Publication number: 20130248862Abstract: According to one embodiment, a solid-state image sensing device includes a semiconductor substrate having a first and second surface, an insulating film covering an element on the first surface, a pixel array including pixels configured to photoelectrically convert light applied on the side of the second surface, contact regions in the semiconductor substrate, one or more through-electrodes respectively provided in the contact regions, and first pads provided on the side of the second surface to correspond to the respective contact regions. The first pad extends in a first direction from the contact regions toward the pixel array.Type: ApplicationFiled: March 22, 2013Publication date: September 26, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Ikuko INOUE, Masahiro Baba, Eiji Sato, Haruhide Kikuchi
-
Patent number: 8519499Abstract: According to one embodiment, a solid-state image sensor includes a semiconductor substrate including a first surface on which light enters, and a second surface opposite to the first surface, a pixel region formed in the semiconductor substrate, and including a photoelectric conversion element which converts the incident light into an electrical signal, a peripheral region formed in the semiconductor substrate, and including a circuit which controls an operation of the element in the pixel region, a plurality of interconnects which are formed in a plurality of interlayer insulating films stacked on the second surface, and are connected to the circuit, and a support substrate formed on the stacked interlayer insulating films and the interconnects. An uppermost one of the interconnects formed in an uppermost one of the interlayer insulating films is buried in a first trench formed in the uppermost interlayer insulating film.Type: GrantFiled: July 28, 2010Date of Patent: August 27, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Mariko Saito, Ikuko Inoue, Takeshi Yoshida
-
Patent number: 8476729Abstract: A solid-state imaging device includes an imaging element, an external terminal, an insulating film, a through-electrode and a first electrode. The imaging element is formed on a first major surface of a semiconductor substrate. The external terminal is formed on a second major surface opposing the first major surface of the semiconductor substrate. The insulating film is formed in a through-hole formed in the semiconductor substrate. The through-electrode is formed on the insulating film in the through-hole and electrically connected to the external terminal. The first electrode is formed on the through-electrode on the first major surface of the semiconductor substrate. When viewed from a direction perpendicular to the first major surface of the semiconductor substrate, an outer shape with which the insulating film and the semiconductor substrate are in contact is larger than an outer shape of the first electrode.Type: GrantFiled: March 19, 2010Date of Patent: July 2, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Ikuko Inoue, Kenichiro Hagiwara
-
Publication number: 20120318962Abstract: According to one embodiment, an image pickup device includes a semiconductor substrate and first and second color filters. The semiconductor substrate includes a first principal surface and a second principal surface lying opposite the first principal surface. The first color filter has a first bottom surface lying on the second principal surface side and a first top surface lying opposite the first bottom surface. The second color filter has a second bottom surface lying on the second principal surface side and a second top surface lying opposite the second bottom surface. The first color filter includes a spectroscopic filter configured to allow light having passed through the semiconductor substrate to pass through. In a cross section perpendicular to the second principal surface, the first bottom surface is longer than the first top surface, and the second bottom surface is shorter than the second top surface.Type: ApplicationFiled: June 20, 2012Publication date: December 20, 2012Inventors: Ikuko INOUE, Hajime OOTAKE, Hiromichi SEKI
-
Publication number: 20120252156Abstract: A solid-state imaging device includes an imaging element, an external terminal, an insulating film, a penetration electrode, a first insulating interlayer, a first electrode, and a first contact plug. The imaging element is formed on a first main surface of a semiconductor substrate. The external terminal is formed on a second main surface facing the first main surface of the substrate. The insulating film is formed in a through-hole formed in the substrate. The penetration electrode is formed on the insulating film in the through-hole and electrically connected to the external terminal. The first insulating interlayer is formed on the first main surface of the substrate and the penetration electrode. The first electrode is formed on the first insulating interlayer. The first contact plug is formed in the first insulating interlayer between the penetration electrode and the first electrode to electrically connect the penetration electrode and the first electrode.Type: ApplicationFiled: June 7, 2012Publication date: October 4, 2012Inventors: Mariko Saito, Ikuko Inoue
-
Patent number: 7989907Abstract: Provided is a backside-illuminated solid-state image pickup device capable of allowing peripheral circuits to produce stable waveforms and thereby achieving image characteristics with less noise, the device including: a first-conductivity-type semiconductor layer having a first principal surface and a second principal surface opposed to the first principal surface and also having a pixel area and an analog circuit area; a first P type area formed to lie between the second principal surface and the first principal surface in the analog circuit area; a metal layer formed at least partially on the second principal surface of the first P type area; a VSS electrode electrically connected to the metal layer; a photo-conversion area formed in the pixel area and used to accumulate electric charges generated by photoelectric conversion; and a microlens provided on the second principal surface in the pixel area so as to correspond to the photo-conversion area.Type: GrantFiled: October 16, 2009Date of Patent: August 2, 2011Assignee: Kabushiki Kaisha ToshibaInventor: Ikuko Inoue
-
Patent number: 7915069Abstract: An n/p semiconductor substrate is formed in such a manner that an n type semiconductor layer is deposited on a p+ semiconductor substrate. An imaging area including a plurality of n type semiconductor regions making photoelectric conversion and a plurality of p type semiconductor region for isolation formed around the n type semiconductor regions, is formed in the n/p semiconductor substrate. The n type semiconductor layer is divided into an upper layer and a lower layer. A second n type semiconductor region is formed to connect to the p+ type semiconductor substrate from a surface of the n/p semiconductor substrate in a peripheral region of the imaging area.Type: GrantFiled: April 1, 2010Date of Patent: March 29, 2011Assignee: Kabushiki Kaisha ToshibaInventor: Ikuko Inoue
-
Publication number: 20110068476Abstract: According to one embodiment, a manufacturing method of a semiconductor device is disclosed. The semiconductor device includes a semiconductor substrate having first and second main surfaces, and a through hole passing through between the first and second main surfaces, a pad on the first main surface, a through electrode in the through hole, and a connection structure including a connection portion to directly connect the pad and the through electrode, and another connection portion to indirectly connect the pad and the through electrode. The method includes forming an isolation region in the first main surface, the isolation region being in a region where the through electrode is to be formed and being in a region other than the region where the through hole is to be formed, forming the pad, and forming the through hole by processing the substrate to expose a part of the pad.Type: ApplicationFiled: September 3, 2010Publication date: March 24, 2011Inventors: Atsuko KAWASAKI, Kenichiro Hagiwara, Ikuko Inoue, Kazutaka Akiyama, Itsuko Sakai, Mie Matsuo, Masahiro Sekiguchi, Yoshiteru Koseki, Hiroki Neko, Koushi Tozuka, Kazuhiko Nakadate, Takuto Inoue
-
Publication number: 20110062540Abstract: According to one embodiment, a solid-state image sensor includes a semiconductor substrate including a first surface on which light enters, and a second surface opposite to the first surface, a pixel region formed in the semiconductor substrate, and including a photoelectric conversion element which converts the incident light into an electrical signal, a peripheral region formed in the semiconductor substrate, and including a circuit which controls an operation of the element in the pixel region, a plurality of interconnects which are formed in a plurality of interlayer insulating films stacked on the second surface, and are connected to the circuit, and a support substrate formed on the stacked interlayer insulating films and the interconnects. An uppermost one of the interconnects formed in an uppermost one of the interlayer insulating films is buried in a first trench formed in the uppermost interlayer insulating film.Type: ApplicationFiled: July 28, 2010Publication date: March 17, 2011Inventors: Mariko SAITO, Ikuko Inoue, Takeshi Yoshida
-
Patent number: 7889255Abstract: Each of the unit cells provided on a semiconductor substrate of a solid-state imaging device comprises a first p-type well which isolates the semiconductor substrate into an n-type photoelectric conversion region, a second p-type well which is formed in the surface of the photoelectric conversion region and in which a signal scanning circuit section is formed, and a signal storage section which is comprised of a highly doped n-type layer which is formed in the surface of the photoelectric conversion region apart from the second p-type well and higher in impurity concentration than the photoelectric conversion region. The signal storage section having its part placed under a signal readout gate adapted to transfer a packet of signal charge from the storage section to the signal scanning circuit section and its part at which the potential becomes deepest located under the readout gate.Type: GrantFiled: October 18, 2005Date of Patent: February 15, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Ikuko Inoue, Hirofumi Yamashita, Nagataka Tanaka, Hisanori Ihara, Tetsuya Yamaguchi, Hiroshige Goto
-
Patent number: 7855406Abstract: An n/p?/p+ substrate where a p?-type epitaxial layer and an n-type epitaxial layer have been deposited on a p+-type substrate is provided. In the surface region of the n-type epitaxial layer, the n-type region of a photoelectric conversion part has been formed. Furthermore, a barrier layer composed of a p-type semiconductor region has been formed so as to enclose the n-type region of the photoelectric conversion part in a plane and reach the p?-type epitaxial layer from the substrate surface. A p-type semiconductor region has also been formed at a chip cutting part for dividing the substrate into individual devices so as to reach the p?-type epitaxial layer from the substrate surface.Type: GrantFiled: July 12, 2007Date of Patent: December 21, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Tetsuya Yamaguchi, Hiroshige Goto, Hirofumi Yamashita, Ikuko Inoue, Nagataka Tanaka, Hisanori Ihara
-
Patent number: 7851879Abstract: An imaging device according to an example of the invention comprises a first photoelectric conversion unit which is formed at an imaging area of a substrate, a second photoelectric conversion unit for black reference observation which is formed at an optical black area between the imaging area of the substrate and a peripheral circuit area where a peripheral circuit is formed, an insulating film which is formed on the imaging area and the optical black area of the substrate, and a shielding unit which is formed by connecting a contact and a interconnect in an accumulating direction of the insulating film from the substrate surface to the insulating film surface.Type: GrantFiled: October 9, 2008Date of Patent: December 14, 2010Assignee: Kabushiki Kaisha ToshibaInventor: Ikuko Inoue
-
Publication number: 20100264503Abstract: A solid-state imaging device includes an imaging element, an external terminal, an insulating film, a through-electrode and a first electrode. The imaging element is formed on a first major surface of a semiconductor substrate. The external terminal is formed on a second major surface opposing the first major surface of the semiconductor substrate. The insulating film is formed in a through-hole formed in the semiconductor substrate. The through-electrode is formed on the insulating film in the through-hole and electrically connected to the external terminal. The first electrode is formed on the through-electrode on the first major surface of the semiconductor substrate. When viewed from a direction perpendicular to the first major surface of the semiconductor substrate, an outer shape with which the insulating film and the semiconductor substrate are in contact is larger than an outer shape of the first electrode.Type: ApplicationFiled: March 19, 2010Publication date: October 21, 2010Inventors: Ikuko INOUE, Kenichiro HAGIWARA
-
Patent number: RE46123Abstract: According to one embodiment, a solid-state image sensor includes a semiconductor substrate including a first surface on which light enters, and a second surface opposite to the first surface, a pixel region formed in the semiconductor substrate, and including a photoelectric conversion element which converts the incident light into an electrical signal, a peripheral region formed in the semiconductor substrate, and including a circuit which controls an operation of the element in the pixel region, a plurality of interconnects which are formed in a plurality of interlayer insulating films stacked on the second surface, and are connected to the circuit, and a support substrate formed on the stacked interlayer insulating films and the interconnects. An uppermost one of the interconnects formed in an uppermost one of the interlayer insulating films is buried in a first trench formed in the uppermost interlayer insulating film.Type: GrantFiled: January 13, 2015Date of Patent: August 23, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Mariko Saito, Ikuko Inoue, Takeshi Yoshida