Stmicroelectronics (crolles 2) Sas

Stmicroelectronics S.a.

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Stmicroelectronics (grenoble 2) Sas

Stmicroelectronics R&d Limited

Francois Roy

Julien Michelot

Yvon Cazaux

Arnaud Tournier

Jens Prima

Sonarith Chhun

Marie Guillon

Boris Rodrigues Goncalves

Andrej Suler

Philippe Are

Didier Dutartre

Benoit Giffard

Thomas Girault

Thomas Dalleau

Stephane Hulot

Nicolas Virollet

Boris Rodrigues

Pascal Mellot

Michel Marty

Frederic Lalanne

Arnaud Laflaquiere

Tarek Lule

Laurent Favennec

Cedric Tubert

Francois Guyader

Flavien Hirigoyen

Nicolas Hotellier

Pierre Emmanuel Marie Malinge

Frédéric Lalanne

Francois Leverd

Pascal Besson

Alexis Rochas

Cyril Fellous

Bastien Mamdy

Nayera Ahmed

Derek Tolmie

Christophe Aumont

Samir Guerroudj

An electronic device is provided that includes a photodiode. The photodiode includes a semiconductor region coupled to a node of application of a first voltage, and at least one semiconductor wall. The at least one semiconductor wall extends along at least a height of the photodiode and partially surrounds the semiconductor region.

Electronic device comprising a photodiode

An image sensor includes a pixel array where each pixel is formed in a portion of a substrate electrically insulated from other portions of the substrate. Each pixel includes a photodetector; a transfer transistor; and a readout circuit comprising one or a plurality of transistors. The transistors of the readout circuit are formed inside and on top of at least one well of the portion. The reading from the photodetector of a pixel of a current row uses at least one transistor of the readout circuit of a pixel of at least one previous row, the well of the pixel of the previous row being biased with a first voltage greater than a second bias voltage of the well of the pixel of the current row.

Image sensor

A sensor includes pixels supported by a substrate doped with a first conductivity type. Each pixel includes a portion of the substrate delimited by a vertical insulation structure with an image sensing assembly and a depth sensing assembly. The image sensing assembly includes a first region of the substrate more heavily doped with the first conductivity type and a first vertical transfer gate completely laterally surrounding the first region. Each of the depth sensing assemblies includes a second region of the substrate more heavily doped with the first conductivity type a second vertical transfer gate opposite a corresponding portion of the first vertical transfer gate. The second region is arranged between the second vertical transfer gate and the corresponding portion of the first vertical transfer gate.

Image and depth pixel

An electronic device includes a substrate semiconductor wafer with semiconductor portions separated from one another by through-passages. Electronic circuits and a dielectric layer with a network of electrical connections are formed at a front face of the substrate semiconductor wafer. Electrically conductive fillings are contained within the through-passages and are connected to the network of electrical connections. Interior dielectric layers for anti-diffusion protection are provided in the through-passages between the electrically conductive fillings and the semiconductor portions. Back side dielectric layers are joined to the interior dielectric layers.

Electronic device image sensor

A back side illuminated image sensor includes a pixel formed by three doped photosensitive regions that are superposed vertically in a semiconductor substrate. Each photosensitive region is laterally framed by a respective vertical annular gate. The vertical annular gates are biased by a control circuit during an integration phase so as to generate an electrostatic potential comprising potential wells in the central portion of the volume of each doped photosensitive region and a potential barrier at each interface between two neighboring doped photosensitive regions.

Image sensor intended to be illuminated via a back side, and corresponding method for acquiring a light flux

The present disclosure concerns an image sensor including a plurality of pixels, each including: a doped photosensitive region of a first conductivity type extending vertically in a semiconductor substrate; a charge collection region more heavily doped with the first conductivity type than the photosensitive region, extending vertically in the substrate from an upper surface of the substrate and being arranged above the photosensitive region; and a vertical stack including a vertical transfer gate and a vertical electric insulation wall, the stack crossing the substrate and being in contact with the charge collection region, the gate being arranged on the upper surface side of the substrate and penetrating into the substrate deeper than the charge collection region.

A pixel includes: a detection node; a first normally on transistor connected between the detection node and a rail for applying a first potential; and a second transistor whose gate is connected to the detection node. An image sensor includes a plurality of the pixels and a control circuit configured to apply, during for a phase of initializing the detection node, the first potential to the gate of the first transistor.

Pixel and method for controlling the same

A semiconductor image sensor includes a plurality of pixels. Each pixel of the sensor includes a semiconductor substrate having opposite front and back sides and laterally delimited by a first insulating wall including a first conductive core insulated from the substrate, electron-hole pairs being capable of forming in the substrate due to a back-side illumination. A circuit is configured to maintain, during a first phase in a first operating mode, the first conductive core at a first potential and to maintain, during at least a portion of the first phase in a second operating mode, the first conductive core at a second potential different from the first potential.

Low-noise wide dynamic range image sensor

An image sensor includes a pixel with a photosensitive region accommodated within a semiconductor substrate and a MOS capacitive element with a conducting electrode electrically isolated by a dielectric layer. The dielectric layer forms an interface with both the photosensitive region and the semiconductor substrate, the interface of the dielectric layer including charge traps. A control circuit biases the electrode of the MOS capacitive element with a charge pumping signal designed to generate an alternation of successive inversion regimes and accumulation regimes in the photosensitive region. The charge pumping signal produces recombinations of photogenerated charges in the charge traps of the interface of the dielectric layer and the generation of a substrate current to empty recombined photogenerated charges.

Image sensor comprising, a pixel equipped with a MOS capacitive element, and corresponding control method

A charge-coupled device includes an array of insulated electrodes vertically penetrating into a semiconductor substrate. The array includes rows of alternated longitudinal and transverse electrodes. Each end of a longitudinal electrode of a row is opposite and separated from a portion of an adjacent transverse electrode of that row. Electric insulation walls extend parallel to one another and to the longitudinal electrodes. The insulation walls penetrate vertically into the substrate deeper than the longitudinal electrodes. At least two adjacent rows of electrodes are arranged between each two successive insulation walls.

Charge-coupled device

A semiconductor layer is doped with a first doping type and has an upper surface. A first electrode insulated from the semiconductor layer extending through the semiconductor layer from the upper surface. A second electrode insulated from the semiconductor layer extends through the semiconductor layer from the upper surface. The first and second electrodes are biased by a voltage to produce an electrostatic field within the semiconductor layer causing the formation of a depletion region. The depletion region responds to absorption of a photon with an avalanche multiplication that produces charges that are collected at first and second oppositely doped regions within the semiconductor substrate.

Single photon avalanche gate sensor device

Growing community of inventors

Seyssins, France

Francois Roy