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Class 257/445 - With antiblooming means


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: Subject matter with means to prevent more than one individual
No. of patents: 57
Last issue date: 11/09/2010


1    
NumberTitleIssue Date
7829969Storage pixel
Embodiments of the present invention provide pixel cells with increased storage capacity, which are capable of anti-blooming operations. In an exemplary embodiment a pixel cell has an electronic shutter that transfers charge generated by a photo-conversion device to...
11/09/2010
7427740Image sensor with drain region between optical black regions
An image sensor comprises an active pixel region that includes a plurality of unit pixels arranged in a matrix pattern, a first optical black region formed adjacent to the active pixel region, wherein a plurality of shaded unit pixels are arranged therein, a drain r...
09/23/2008
7378635Method and apparatus for dark current and hot pixel reduction in active pixel image sensors
A method of operating an imager pixel that includes the act of applying a relatively small voltage on the gate of a transfer transistor during a charge acquisition period. If a small positive voltage is applied, a depletion region is created under the transfer trans...
05/27/2008
7332786Anti-blooming storage pixel
Embodiments of the present invention provide pixel cells with increased storage capacity, which are capable of anti-blooming operations. In an exemplary embodiment a pixel cell has an electronic shutter that transfers charge generated by a photo-conversion device to...
02/19/2008
7232526Method and apparatus for controlling material removal from semiconductor substrate using induced current endpointing
A method and apparatus for controlling the removal of material from a semiconductor substrate in an integrated circuit fabrication process is disclosed. The method and apparatus utilize a light source or charged particle beam (electron or ion beam) to induce a curre...
06/19/2007
7205523Solid state image pickup device, method of manufacturing the same, and camera
The solid state image pickup device includes a pixel, the pixel including: a photoelectric conversion region for generating carrier by photoelectric conversion and accumulating the carrier; a carrier holding region for accumulating carrier flowing out from the photo...
04/17/2007
7078751Solid-state imaging device
The sources or drains 14 of transistors and photodiodes 13, which constitute shaded pixels covered with a shading layer 16, are formed on a surface of a highly doped well 20 provided on a lowly doped substrate 11. Therefore, a pote...
07/18/2006
7061028Image sensor device and method to form image sensor device
A new method to form an image sensor device is achieved. The method comprises forming an image sensing array in a substrate comprising a plurality of light detecting diodes with spaces between the diodes. A first dielectric layer is formed overlying the diodes but n...
06/13/2006
7005690Solid-state image sensor
The solid-state image sensor includes a pixel part 10, an analog circuit part 12, a digital circuit part 14 and an input/output circuit part 16. The digital circuit part 14 includes a first well 42c of a second conduc...
02/28/2006
7002231Barrier regions for image sensors
Embodiments of the invention provide a barrier region for isolating devices of an image sensor. The barrier region comprises a charge accumulation region of a particular conductivity type in a substrate electrically connected to a voltage source terminal. The charge...
02/21/2006
6995408Bidirectional photothyristor chip
A Schottky barrier diode 44 is formed between a P-gate diffusion region 33 and an N-type silicon substrate 31 in a photothyristor on a CH1 side and a photothyristor on a CH2 side. With this arrangement, the injection of minority ca...
02/07/2006
6963092Image sensors including photodetector and bypass device connected to a power supply voltage
A pixel of a semiconductor-based image detector includes a photodetector, at least one switching device serially connected to the photodetector and a bypass device interposed between the photodetector and a power supply voltage. Accordingly, even though excess charg...
11/08/2005
6946702Resistance random access memory
The present invention provides a resistance random access memory structure, including a plurality of word lines in a substrate, a plurality of reset lines coupled to the word lines, a dielectric layer on the substrate, a plurality of memory units in the dielectric l...
09/20/2005
6927434Providing current to compensate for spurious current while receiving signals through a line
Circuits, methods, and systems are disclosed in which a current is provided to compensate for spurious current while receiving signals through a line. For example, the spurious current can be sensed and the compensating current can be approximately equal to the sens...
08/09/2005
6888573Digital pixel sensor with anti-blooming control
An anti-blooming charge accumulation pixel using an anti-blooming element coupled to the pixel prevents blooming by ensuring that a voltage of a charge accumulation device of the pixel is always returned to a clamping voltage following comparison events. The anti-bl...
05/03/2005
6760073Solid-state image sensor
There is provided a solid-state image sensor including (a) a plurality of first charge transfer sections each for vertically transferring electric charges, formed on a surface of a semiconductor layer, (b) a second charge transfer section for horizontally transferri...
07/06/2004
6501109Active CMOS pixel with exponential output based on the GIDL mechanism
A structure of a new active pixel sensor cell formed in a semiconductor substrate is disclosed. An n-type region is formed in the substrate extending to the surface. Two p+ regions are formed in the n-type region, both extending to the surface and coverin...
12/31/2002
6489642Image sensor having improved spectral response uniformity
An image sensor, includes a semiconductor substrate; a photosensor having, a first photosensing region including a first stack of one or more layers of transparent materials overlying the substrate, the first photosensing region having a spectral response...
12/03/2002
6369853Intra-pixel frame storage element, array, and electronic shutter method suitable for electronic still camera applications
A storage pixel sensor disposed on a semiconductor substrate comprises a capacitive storage element having a first terminal connected to a fixed potential and a second terminal. A photodiode has an anode connected to a first potential and a cathode. A sem...
04/09/2002
6278487Solid-state image sensing device
A solid-state image sensing device includes photoelectric conversion portions, vertical charge transfer portions, a horizontal charge transfer portion, an unwanted charge removing portion, and a potential barrier portion. The photoelectric conversion port...
08/21/2001
6169318CMOS imager with improved sensitivity
An improved pixel design for a CMOS image sensor with a small feature size is described. In conventional image sensors of this type, the quantum efficiency is typically reduced as a result of the decreased thickness of the top n-type layer of the photodio...
01/02/2001
5998818Amplification type solid-state imaging device
The amplification type solid-state imaging device of this invention includes amplification type photoelectric converting elements arranged in a matrix. Each of the amplification type photoelectric converting elements includes: a transistor formed at a sur...
12/07/1999
5986297Color active pixel sensor with electronic shuttering, anti-blooming and low cross-talk
An active pixel sensor architecture comprising a semiconductor substrate having a plurality of pixels formed, thereon, incorporating microlens and lightshields into the pixel architecture. Each of the pixels further comprising: a photodetector region upon...
11/16/1999
5942774Photoelectric conversion element and photoelectric conversion apparatus
A photoelectric conversion element includes a photoelectric conversion portion for generating and storing a charge according to incident light, an amplifying portion having a control region for generating a signal output according to the charge received i...
08/24/1999
5903021Partially pinned photodiode for solid state image sensors
A pixelated image sensor having comprising a partially pinned photodiode which is formed a semiconductor of a first conductivity type formed on a surface of the sensor with at least one photodiode formed, within the semiconductor near the surface, the pho...
05/11/1999
5898195Solid-state imaging device of a vertical overflow drain system
A solid-state imaging device of a vertical overflow drain system according to the present invention includes a first conductive type semiconductor substrate, a second conductive type semiconductor well region formed on the first conductive type semiconduc...
04/27/1999
5872371Active pixel sensor with punch-through reset and cross-talk suppression
In an active pixel sensor having a plurality of pixels, each of the pixels having a photodetector for accumulating charge from incident light, a transfer gate for removing charge from the photodetector, a floating diffusion that acts as a sense node to an...
02/16/1999
5867055Semiconductor device containing an adjustable voltage generator
A semiconductor device and a method of inspecting the same are described. The semiconductor device does not need voltage adjustment of an external driver circuit, since it contains a voltage generator to inspect and memorize the best value of voltage by c...
02/02/1999
5861645Amplifying type solid-state imaging device and amplifying type solid-state imaging apparatus
An amplifying type solid-state imaging device having a transistor formed on a semiconductor base and a charge release portion which stores a signal charge which is generated by light incident on the transistor and outputs a change of an electrical signal ...
01/19/1999
5859462Photogenerated carrier collection of a solid state image sensor array
An image sensor comprising a semiconductor of a first conductivity type having a plurality of pixels formed thereon; and a region heavily doped with the first conductivity type semiconductor beneath the pixels formed such that there is a gradient formed w...
01/12/1999
5710447Solid state image device having a transparent Schottky electrode
Disclosed is a solid state image device which has a plurality of photosensitive units which are disposed in parallel with each other and each of which includes a row of a plurality of photosensitive devices each of which includes a first N(or P)-type impu...
01/20/1998
5587596Single MOS transistor active pixel sensor cell with automatic anti-blooming and wide dynamic range
The size of an active pixel sensor cell is reduced by utilizing a single MOS transistor formed in a well to perform the functions conventionally performed by a photogate/photodiode, a sense transistor, and an access transistor. Light energy striking the w...
12/24/1996
5567974Semiconductor device to absorb stray carriers
A photo IC having a plurality of photodiodes is disclosed. A semiconductor region to absorb stray carriers is provided between the photodiodes. Stray carriers generated by incidence of light are absorbed by the semiconductor region. As a result, crosstalk...
10/22/1996
5404039Solid state imaging device and method of manufacture therefor
A solid state imaging device of the present invention includes: a semiconductor substrate of one conductive type; a well layer made of a semiconductor of the other conductive type formed on the semiconductor substrate; a photodetecting portion made of a s...
04/04/1995
5349216Charge coupled device image sensor
A CCD image sensor comprising: a semiconductor substrate of a first conductivity type connected to a ground; an impurity region of a second conductivity type formed in the surface of the semiconductor substrate of the first conductivity type, to serve as ...
09/20/1994
5331165Split event reduced x-ray imager
The present invention relates to a charge coupled device CCD X-ray imager for reducing split events during integration. The imager includes a semiconductor material having a photosensitive region for receiving X-ray radiation energy and for generating ele...
07/19/1994
5298778Solid state image pickup device
An application-type solid state imaging device which includes a plurality of picture elements arranged in a two-dimensional matrix. A sensor region is surrounded by a substrate and a gate region is positioned laterally substantially about the sensor regio...
03/29/1994
5285091Solid state image sensing device
A solid state image sensing device has a plurality of photo sensing elements arranged in a two-dimensional fashion at pixel units pixel unit in the horizontal and vertical directions. Each of the plurality of photo sensing elements is formed of a vertical...
02/08/1994
5130774Antiblooming structure for solid-state image sensor
A solid-state image sensor includes a substrate of a semiconductor material of one conductivity type having a surface. A plurality of spaced, parallel CCDs are in the substrate at the surface. Each CCD includes a channel region of the opposite conductivit...
07/14/1992
4891682Solid state image pick-up device having a number of static induction transistor image sensors
A solid state image pick-up device having a number of static induction transistor image sensors arranged in a matrix form, each static induction image sensor includes a drain region formed by an n+ substrate connected to the earth potential, a channel reg...
01/02/1990
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