Patents by Inventor Yasushi Maruyama

Yasushi Maruyama 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: 7985614
    Abstract: A solid-state imaging device having a high sensitivity and a structure in which a miniaturized pixel is obtained, and a method for manufacturing the solid-state imaging device in which an interface is stable, a spectroscopic characteristic is excellent and which can be manufactured with a high yield ratio are provided. The solid-state imaging device includes at least a silicon layer formed with a photo sensor portion and a wiring layer formed on the front-surface side of the silicon layer, and in which light L is made to enter from the rear-surface side opposite to the front-surface side of the silicon layer and the thickness of the silicon layer 4 is 10 ?m or less.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: July 26, 2011
    Assignee: Sony Corporation
    Inventors: Yasushi Maruyama, Hideshi Abe, Hiroyuki Mori
  • Patent number: 7981769
    Abstract: A solid-state imaging device having a high sensitivity and a structure in which a miniaturized pixel is obtained, and a method for manufacturing the solid-state imaging device in which an interface is stable, a spectroscopic characteristic is excellent and which can be manufactured with a high yield ratio are provided. The solid-state imaging device includes at least a silicon layer formed with a photo sensor portion and a wiring layer formed on the front-surface side of the silicon layer, and in which light L is made to enter from the rear-surface side opposite to the front-surface side of the silicon layer and the thickness of the silicon layer 4 is 10 ?m or less.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: July 19, 2011
    Assignee: Sony Corporation
    Inventors: Yasushi Maruyama, Hideshi Abe, Hiroyuki Mori
  • Publication number: 20110156111
    Abstract: A back-illuminated type solid-state image pickup device (1041) includes read circuits (Tr1, Tr2) formed on one surface of a semiconductor substrate (1042) to read a signal from a photo-electric conversion element (PD) formed on the semiconductor substrate (1042), in which electric charges (e) generated in a photo-electric conversion region (1052c1) formed under at least one portion of the read circuits (Tr1, Tr2) are collected to an electric charge accumulation region (1052a) formed on one surface side of the semiconductor substrate (1042) of the photo-electric conversion element (PD) by electric field formed within the photo-electric conversion element (PD). Thus, the solid-state image pickup device and the camera are able to make the size of pixel become very small without lowering a saturation electric charge amount (Qs) and sensitivity.
    Type: Application
    Filed: March 1, 2011
    Publication date: June 30, 2011
    Applicant: Sony Corporation
    Inventors: Shin Iwabuchi, Kazuhide Yokota, Takeshi Yanagita, Yasushi Maruyama
  • Publication number: 20110147876
    Abstract: A solid-state imaging device including an imaging area formed of a plurality of pixels arrayed in a two-dimensional matrix is provided. The solid-state imaging device includes: a photoelectric conversion portion including a charge accumulation region provided on a semiconductor substrate; a read transistor for reading electric charges from the photoelectric conversion portion; and a gettering site for separating metal impurities within the semiconductor substrate from at least the photoelectric conversion portion. The photoelectric conversion portion is provided on the surface side of the semiconductor substrate, and the gettering site is provided on the rear side away from the semiconductor substrate.
    Type: Application
    Filed: February 28, 2011
    Publication date: June 23, 2011
    Applicant: SONY CORPORATION
    Inventor: Yasushi Maruyama
  • Patent number: 7947528
    Abstract: A back-illuminated type solid-state image pickup device (1041) includes read circuits (Tr1, Tr2) formed on one surface of a semiconductor substrate (1042) to read a signal from a photo-electric conversion element (PD) formed on the semiconductor substrate (1042), in which electric charges (e) generated in a photo-electric conversion region (1052c1) formed under at least one portion of the read circuits (Tr1, Tr2) are collected to an electric charge accumulation region (1052a) formed on one surface side of the semiconductor substrate (1042) of the photo-electric conversion element (PD) by electric field formed within the photo-electric conversion element (PD). Thus, the solid-state image pickup device and the camera are able to make the size of pixel become very small without lowering a saturation electric charge amount (Qs) and sensitivity.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: May 24, 2011
    Assignee: Sony Corporation
    Inventors: Shin Iwabuchi, Kazuhide Yokota, Takeshi Yanagita, Yasushi Maruyama
  • Publication number: 20110058062
    Abstract: A solid-state imaging device includes a substrate having a first surface and a second surface, light being incident on the second surface side; a wiring layer disposed on the first surface side; a photodetector formed in the substrate and including a first region of a first conductivity type; a transfer gate disposed on the first surface of the substrate and adjacent to the photodetector, the transfer gate transferring a signal charge accumulated in the photodetector; and at least one control gate disposed on the first surface of the substrate and superposed on the photodetector, the control gate controlling the potential of the photodetector in the vicinity of the first surface.
    Type: Application
    Filed: November 12, 2010
    Publication date: March 10, 2011
    Applicant: SONY CORPORATION
    Inventors: Yasushi Maruyama, Tetsuji Yamaguchi, Takashi Ando, Susumu Hiyama, Yuko Ohgishi
  • Patent number: 7902578
    Abstract: A solid-state imaging device including an imaging area formed of a plurality of pixels arrayed in a two-dimensional matrix is provided. The solid-state imaging device includes: a photoelectric conversion portion including a charge accumulation region provided on a semiconductor substrate; a read transistor for reading electric charges from the photoelectric conversion portion; and a gettering site for separating metal impurities within the semiconductor substrate from at least the photoelectric conversion portion. The photoelectric conversion portion is provided on the surface side of the semiconductor substrate, and the gettering site is provided on the rear side away from the semiconductor substrate.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: March 8, 2011
    Assignee: Sony Corporation
    Inventor: Yasushi Maruyama
  • Publication number: 20100267185
    Abstract: A back-illuminated type solid-state image pickup device (1041) includes read circuits (Tr1, Tr2) formed on one surface of a semiconductor substrate (1042) to read a signal from a photo-electric conversion element (PD) formed on the semiconductor substrate (1042), in which electric charges (e) generated in a photo-electric conversion region (1052c1) formed under at least one portion of the read circuits (Tr1, Tr2) are collected to an electric charge accumulation region (1052a) formed on one surface side of the semiconductor substrate (1042) of the photo-electric conversion element (PD) by electric field formed within the photo-electric conversion element (PD). Thus, the solid-state image pickup device and the camera are able to make the size of pixel become very small without lowering a saturation electric charge amount (Qs) and sensitivity.
    Type: Application
    Filed: July 1, 2010
    Publication date: October 21, 2010
    Applicant: SONY CORPORATION
    Inventors: Shin IWABUCHI, Kazuhide YOKOTA, Takeshi YANAGITA, Yasushi MARUYAMA
  • Publication number: 20100264474
    Abstract: A back-illuminated type solid-state image pickup device (1041) includes read circuits (Tr1, Tr2) formed on one surface of a semiconductor substrate (1042) to read a signal from a photo-electric conversion element (PD) formed on the semiconductor substrate (1042), in which electric charges (e) generated in a photo-electric conversion region (1052c1) formed under at least one portion of the read circuits (Tr1, Tr2) are collected to an electric charge accumulation region (1052a) formed on one surface side of the semiconductor substrate (1042) of the photo-electric conversion element (PD) by electric field formed within the photo-electric conversion element (PD). Thus, the solid-state image pickup device and the camera are able to make the size of pixel become very small without lowering a saturation electric charge amount (Qs) and sensitivity.
    Type: Application
    Filed: July 1, 2010
    Publication date: October 21, 2010
    Applicant: SONY CORPORATION
    Inventors: Shin IWABUCHI, Kazuhide YOKOTA, Takeshi YANAGITA, Yasushi MARUYAMA
  • Publication number: 20100201834
    Abstract: A solid-state imaging device includes: a pixel region in which a plurality of pixels composed of a photoelectric conversion section and a pixel transistor is arranged; an on-chip color filter; an on-chip microlens; and a multilayer interconnection layer in which a plurality of layers of interconnections is formed through an interlayer insulating film. The solid-state imaging device further includes a light-shielding film formed through an insulating layer in a pixel boundary of a light receiving surface in which the photoelectric conversion section is arranged.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 12, 2010
    Applicant: SONY CORPORATION
    Inventors: Yasushi Maruyama, Kazufumi Watanabe
  • Publication number: 20100178725
    Abstract: P type semiconductor well regions 8 and 9 for device separation are provided in an upper and lower two layer structure in conformity with the position of a high sensitivity type photodiode PD, and the first P type semiconductor well region 8 at the upper layer is provided in the state of being closer to the pixel side than an end portion of a LOCOS layer 1A, for limiting a dark current generated at the end portion of the LOCOS layer 1A. In addition, the second P type semiconductor well region 9 at the lower layer is formed in a narrow region receding from the photodiode PD, so that the depletion layer of the photodiode PD is prevented from being obstructed, and the depletion is secured in a sufficiently broad region, whereby enhancement of the sensitivity of the photodiode PD can be achieved.
    Type: Application
    Filed: March 29, 2010
    Publication date: July 15, 2010
    Applicant: SONY CORPORATION
    Inventors: Hiroaki FUJITA, Ryoji SUZUKI, Nobuo NAKAMURA, Yasushi MARUYAMA
  • Publication number: 20100157125
    Abstract: A CMOS solid state imaging device capable of achieving a higher image quality while reducing the size and power consumption and increasing the number of pixels and speeds. The CMOS solid state imaging device includes a light-receiving portion that performs photoelectric conversion according to a quantity of received light, a transfer gate used to read out charges obtained through the photoelectric conversion in the light-receiving portion, and a peripheral transistor in a periphery of the light-receiving portion. A voltage applied to the transfer gate is set higher than a voltage applied to the peripheral transistor.
    Type: Application
    Filed: March 2, 2010
    Publication date: June 24, 2010
    Applicant: Sony Corporation
    Inventor: Yasushi Maruyama
  • Patent number: 7742089
    Abstract: A CMOS solid state imaging device is capable of achieving a higher image quality while reducing the size and power consumption and increasing the number of pixels and speeds. According to the invention, in a CMOS solid state imaging device, including a light-receiving portion (11) that performs photoelectric conversion according to a quantity of received light, a transfer gate (12a) used to read out charges obtained through the photoelectric conversion in the light-receiving portion (11), and a peripheral transistor provided in a periphery of the light-receiving portion (11), and a driving method of the same, a voltage applied to the transfer gate (12a) is set higher than a voltage applied to the peripheral transistor.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: June 22, 2010
    Assignee: Sony Corporation
    Inventor: Yasushi Maruyama
  • Publication number: 20100141816
    Abstract: A solid-state imaging device includes a substrate having a first surface and a second surface, light being incident on the second surface side; a wiring layer disposed on the first surface side; a photodetector formed in the substrate and including a first region of a first conductivity type; a transfer gate disposed on the first surface of the substrate and adjacent to the photodetector, the transfer gate transferring a signal charge accumulated in the photodetector; and at least one control gate disposed on the first surface of the substrate and superposed on the photodetector, the control gate controlling the potential of the photodetector in the vicinity of the first surface.
    Type: Application
    Filed: February 11, 2010
    Publication date: June 10, 2010
    Applicant: SONY CORPORATION
    Inventors: Yasushi Maruyama, Tetsuji Yamaguchi, Takashi Ando, Susumu Hiyama, Yuko Ohgishi
  • Patent number: 7687831
    Abstract: P type semiconductor well regions 8 and 9 for device separation are provided in an upper and lower two layer structure in conformity with the position of a high sensitivity type photodiode PD, and the first P type semiconductor well region 8 at the upper layer is provided in the state of being closer to the pixel side than an end portion of a LOCOS layer 1A, for limiting a dark current generated at the end portion of the LOCOS layer 1A. In addition, the second P type semiconductor well region 9 at the lower layer is formed in a narrow region receding from the photodiode PD, so that the depletion layer of the photodiode PD is prevented from being obstructed, and the depletion is secured in a sufficiently broad region, whereby enhancement of the sensitivity of the photodiode PD can be achieved.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: March 30, 2010
    Assignee: Sony Corporation
    Inventors: Hiroaki Fujita, Ryoji Suzuki, Nobuo Nakamura, Yasushi Maruyama
  • Publication number: 20100032785
    Abstract: A solid-state imaging device having a high sensitivity and a structure in which a miniaturized pixel is obtained, and a method for manufacturing the solid-state imaging device in which an interface is stable, a spectroscopic characteristic is excellent and which can be manufactured with a high yield ratio. The solid-state imaging device includes at least a silicon layer formed with a photo sensor portion and a wiring layer formed on the front-surface side of the silicon layer, and in which light L is made to enter from a rear-surface side. The thickness of the silicon layer 4 is 10 ?m or less.
    Type: Application
    Filed: August 27, 2009
    Publication date: February 11, 2010
    Applicant: Sony Corporation
    Inventors: Yasushi Maruyama, Hideshi Abe, Hiroyuki Mori
  • Patent number: 7659183
    Abstract: A solid-state imaging device having a high sensitivity and a structure in which a miniaturized pixel is obtained, and a method for manufacturing the solid-state imaging device in which an interface is stable, a spectroscopic characteristic is excellent and which can be manufactured with a high yield ratio are provided. The solid-state imaging device includes at least a silicon layer formed with a photo sensor portion and a wiring layer formed on the front-surface side of the silicon layer, and in which light L is made to enter from the rear-surface side opposite to the front-surface side of the silicon layer and the thickness of the silicon layer 4 is 10 ?m or less.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: February 9, 2010
    Assignee: Sony Corporation
    Inventors: Yasushi Maruyama, Hideshi Abe, Hiroyuki Mori
  • Patent number: 7646047
    Abstract: The solid-state imaging device includes at least a silicon layer formed with a photo sensor portion and a wiring layer formed on the front-surface side of the silicon layer. Light enters from the rear-surface side opposite to the front-surface side of the silicon layer and the thickness of the silicon layer 4 is 10 ?m or less. The photo sensor portion includes sensors configured to convert the light into signals representing an image.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: January 12, 2010
    Assignee: Sony Corporation
    Inventors: Yasushi Maruyama, Hideshi Abe, Hiroyuki Mori
  • Publication number: 20090315134
    Abstract: A solid-state imaging device having a high sensitivity and a structure in which a miniaturized pixel is obtained, and a method for manufacturing the solid-state imaging device in which an interface is stable, a spectroscopic characteristic is excellent and which can be manufactured with a high yield ratio are provided. The solid-state imaging device includes at least a silicon layer formed with a photo sensor portion and a wiring layer formed on the front-surface side of the silicon layer, and in which light L is made to enter from the rear-surface side opposite to the front-surface side of the silicon layer and the thickness of the silicon layer 4 is 10 ?m or less.
    Type: Application
    Filed: August 27, 2009
    Publication date: December 24, 2009
    Applicant: Sony Corporation
    Inventors: Yasushi Maruyama, Hideshi Abe, Hiroyuki Mori
  • Publication number: 20090317932
    Abstract: A solid-state imaging device having a high sensitivity and a structure in which a miniaturized pixel is obtained, and a method for manufacturing the solid-state imaging device in which an interface is stable, a spectroscopic characteristic is excellent and which can be manufactured with a high yield ratio are provided. The solid-state imaging device includes at least a silicon layer formed with a photo sensor portion and a wiring layer formed on the front-surface side of the silicon layer, and in which light L is made to enter from the rear-surface side opposite to the front-surface side of the silicon layer and the thickness of the silicon layer 4 is 10 ?m or less.
    Type: Application
    Filed: August 27, 2009
    Publication date: December 24, 2009
    Applicant: SONY CORPORATION
    Inventors: Yasushi Maruyama, Hideshi Abe, Hiroyuki Mori