Abstract: An input/output circuit layout has a first section in which first transistors having a thicker gate oxide are located and a second section in which second transistors having a thinner gate oxide are located. Due to process technology constraints, the gates of all of the second transistors are oriented in a single common direction. The second section has a perimeter having a square shape including a first edge and a second edge adjacent to the first edge. First connection pins coupled to the second transistors are provided with an orientation that extends inwardly from and perpendicular to the first edge. Second connection pins coupled to the second transistors are provided with an orientation that extends inwardly from and perpendicular to said second edge. The square shape and presence of pins on adjacent first and second edges permits rotation of the second section to fit within different orientations of the layout.
Type:
Grant
Filed:
June 6, 2013
Date of Patent:
July 7, 2015
Assignees:
STMicroelectronics International N.V., STMicroelectronics (Crolles 2) SAS
Inventors:
Manoj Kumar, Jean Guillorit, Navin Kumar Dayani
Abstract: A millimeter wave transceiver including a plate forming an interposer having its upper surface supporting an interconnection network and having its lower surface intended to be assembled on an electronic device; at least one integrated circuit chip assembled on the upper surface of the interposer; at least one antenna including at least one track formed on the upper surface of the interposer; and at least one block attached under the plate and including in front of each antenna a cavity having a metalized bottom, the distance between each antenna and the bottom being on the order of one quarter of the wavelength, taking into account the dielectric constants of the interposed materials.
Type:
Grant
Filed:
June 6, 2012
Date of Patent:
June 30, 2015
Assignees:
STMicroelectronics (Crolles 2) SAS, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Inventors:
Jean-François Carpentier, Laurent Dussopt, Henri Sibuet
Abstract: Elongated fins of a first semiconductor material are insulated from and formed over an underlying substrate layer (of either SOI or bulk type). Elongated gates of a second semiconductor material are then formed to cross over the elongated fins at channel regions, and the gate side walls are covered by sidewall spacers. A protective material is provided to cover the underlying substrate layer and define sidewall spacers on side walls of the elongated fins between the elongated gates. The first semiconductor material and insulating material of the elongated fins located between the protective material sidewall spacers (but not under the elongated gates) is removed to form trenches aligned with the channel regions. Additional semiconductor material is then epitaxially grown inside each trench between the elongated gates to form source-drain regions adjacent the channel regions formed by the elongated fins of the first semiconductor material located under the elongated gates.
Type:
Application
Filed:
December 5, 2013
Publication date:
June 11, 2015
Applicants:
STMICROELECTRONICS (CROLLES 2) SAS, STMICROELECTRONICS, INC.
Inventors:
Nicolas Loubet, Stephane Monfray, Ronald Kevin Sampson
Abstract: An integrated imaging device supports front face illumination with one or more photosensitive regions formed in a substrate. A lower dielectric region is provided over the substrate, the lower dielectric region having an upper face. A metal optical filter having a metal pattern is provided on the upper face (or extending into the lower dielectric region from the upper face). An upper dielectric region is provided on top of the lower dielectric region and metal optical filter. The lower dielectric region is at least part of a pre-metal dielectric layer, and the upper dielectric region is at least part of a metallization layer.
Type:
Application
Filed:
December 3, 2014
Publication date:
June 4, 2015
Applicants:
STMicroelectronics (Crolles 2) SAS, STMicroelectronics SA, Commissariat A L'Energie Atomique et aux Energies Alternatives
Inventors:
Romain Girard Desprolet, Sandrine Lhostis, Salim Boutami, Michel Marty
Abstract: A method of forming a heavily-doped silicon layer on a more lightly-doped silicon substrate including the steps of depositing a heavily-doped amorphous silicon layer; depositing a silicon nitride layer; and heating the amorphous silicon layer to a temperature higher than or equal to the melting temperature of silicon.
Type:
Application
Filed:
November 11, 2014
Publication date:
May 21, 2015
Applicants:
STMICROELECTRONICS SA, STMICROELECTRONICS (CROLLES 2) SAS
Abstract: A method for forming an aluminum titanium nitride layer on a wafer by plasma-enhanced physical vapor deposition including a first step at a radio frequency power ranging between 100 and 500 W only, and a second step at a radio frequency power ranging between 500 and 1,000 W superimposed to a D.C. power ranging between 500 and 1,000 W. An insulated gate comprising such an aluminum titanium nitride layer.
Type:
Grant
Filed:
September 20, 2013
Date of Patent:
May 12, 2015
Assignee:
STMicroelectronics (Crolles 2) SAS
Inventors:
Pierre Caubet, Florian Domengie, Sylvain Baudot
Abstract: An image sensor having a number of pixel zones delimited by isolation trenches, each pixel zone including a photodiode; a transfer gate associated with each of the pixel zones and arranged to transfer charge from the photodiode to a sensing node; and a read circuit for reading a voltage at one of the sensing nodes, the read circuitry including a number of transistors of which at least one is positioned at least partially over a pixel zone of the pixel zones.
Type:
Grant
Filed:
January 26, 2011
Date of Patent:
May 5, 2015
Assignees:
STMicroelectronics S.A., STMicroelectronics (Crolles 2) SAS
Abstract: An assembly converting thermal energy into electrical energy including: at least one temperature sensitive bimetallic strip arranged in a space delimited by a hot source and a cold source facing each other, the bimetallic strip extending along a longitudinal axis; at least one suspended element fixed in movement to the sensitive element and extending laterally from the sensitive element and including a free end; and at least one piezoelectric element suspended from a part fixed relative to the sensitive element and vibrated by the suspended element such that it is vibrated when the bimetallic strip changes configuration and the suspended element comes into contact with the piezoelectric element, the piezoelectric element being located outside the space defined between the bimetallic strip and the hot source and outside the space between the bimetallic strip and the cold source.
Type:
Application
Filed:
July 9, 2012
Publication date:
April 30, 2015
Applicants:
STMICROELECTRONICS (CROLLES 2) SAS, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT
Inventors:
Guillaume Savelli, Philippe Coronel, Stephane Monfray, Thomas Skotnicki
Abstract: An avalance diode including, between two heavily-doped regions of opposite conductivity types arranged at the surface of a semiconductor region, a lightly-doped region, with length L of the lightly-doped region between the heavily-doped regions approximately ranging between 50 and 200 nm.
Type:
Grant
Filed:
May 16, 2013
Date of Patent:
April 28, 2015
Assignees:
STMicroelectronics (Crolles 2) SAS, STMicroelectronics SA
Abstract: A memory cell including a via made of a phase-change material arranged between a lower electrode and an upper electrode, wherein the via includes a central region laterally surrounded with a peripheral region, the crystallization and melting temperatures of the central region being respectively lower than those of the peripheral region.
Type:
Grant
Filed:
September 4, 2013
Date of Patent:
April 28, 2015
Assignees:
STMicroelectronics (Crolles 2) SAS, Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Abstract: A stand-alone device comprising a silicon wafer having its front surface including a first layer of a first conductivity type and a second layer of a second conductivity type forming a photovoltaic cell; first vias crossing the wafer from the rear surface of the first layer and second vias crossing the wafer from the rear surface of the second layer; metallization levels on the rear surface of the wafer, the external level of these metallization levels defining contact pads; an antenna formed in one of the metallization levels; and one or several chips assembled on said pads; the metallization levels being shaped to provide selected interconnects between the different elements of the device.
Type:
Grant
Filed:
August 4, 2011
Date of Patent:
April 14, 2015
Assignees:
STMicroelectronics (Crolles 2) SAS, STMicroelectronics SA
Inventors:
Christophe Regnier, Olivier Hinsinger, Daniel Gloria, Pascal Urard
Abstract: The transverse mechanical stress within the active region of a MOS transistor is relaxed by forming an insulating incursion, such as an insulated trench, within the active region of the MOS transistor. The insulated incursion is provided at least in a channel region of the MOS transistor so as to separate the channel region into two parts. The insulated incursion is configured to extend in a direction of a length of the MOS transistor. The insulated incursion may further extend into one or more of a source region or drain region located adjacent the channel region of the MOS transistor.
Type:
Application
Filed:
October 3, 2014
Publication date:
April 9, 2015
Applicants:
STMicroelectronics (Crolles 2) SAS, STMicroelectronics SA, Commissariat A L'Energie Atomique et aux Energies Alternatives
Abstract: A MOS transistor having a gate insulator including a dielectric of high permittivity and a conductive layer including a TiN layer, wherein the nitrogen composition in the TiN layer is sub-stoichiometric in its lower portion and progressively increases to a stoichiometric composition in its upper portion.
Abstract: A MOS transistor has a gate insulator layer that is made of a material of high dielectric constant deposited on a substrate. The gate insulator layer extends, with a constant thickness, under and beyond a gate stack. Spacers of low dielectric constant are formed on either side of the gate stack and vertically separated from the substrate by the extension of the gate insulator layer beyond the sides of the gate stack. The spacers of low dielectric constant are preferably air spacers.
Type:
Application
Filed:
September 29, 2014
Publication date:
April 2, 2015
Applicants:
STMICROELECTRONICS (CROLLES 2) SAS, STMICROELECTRONICS SA, Commissariat A L'Energie Atomique et aux Energies Alternatives
Inventors:
Heimanu Niebojewski, Yves Morand, Cyrille Le Royer, Olivier Rozeau
Abstract: An image sensor including a pixel array, each pixel including, in a substrate of a doped semiconductor material of a first conductivity type, a first doped region of a second conductivity type at the surface of the substrate; an insulating trench surrounding the first region; a second doped region of the first conductivity type, more heavily doped than the substrate, at the surface of the substrate and surrounding the trench; a third doped region of the second conductivity type, forming with the substrate a photodiode junction, extending in depth into the substrate under the first and second regions and being connected to the first region; and a fourth region, more lightly doped than the second and third regions, interposed between the second and third regions and in contact with the first region and/or with the third region.
Type:
Grant
Filed:
December 10, 2012
Date of Patent:
March 31, 2015
Assignees:
STMicroelectronics S.A., STMicroelectronics (Crolles 2) SAS
Abstract: A proximity sensor includes a radiation source configured to emit a primary radiation beam and a primary detector configured to pick up a reflected primary radiation beam. The radiation source is further configured to emit stray radiation. The sensor further includes a reference detector arranged to receive the stray radiation. The stray radiation may, for example, be emitted from either a side of the radiation source or a bottom of the radiation source.
Abstract: An integrated circuit includes a substrate and an interconnect part above the substrate, and further includes a photosensitive region in the substrate. A filter is provided aligned with the photosensitive region. The filter is formed by at least one layer of filter material. In one implementation for front side illumination, the layer of filter material is positioned above the photosensitive region between the interconnect part and the substrate. In another implementation for back side illumination, the layer of filter material is positioned below the photosensitive region opposite the interconnect part. The layer of filter material is configured such that a product of the thickness of the layer of filter material and the imaginary part of the refractive index of the layer of filter material is above 1 nm.
Type:
Application
Filed:
September 18, 2014
Publication date:
March 19, 2015
Applicants:
STMicroelectronics SA, STMicroelectronics (Crolles 2) SAS, Commissariat A L'Energie Atomique et aux Energies Alternatives
Inventors:
Michel Marty, Sebastien Jouan, Laurent Frey
Abstract: An integrated circuit chip cooling device includes a network of micropipes. A first pipe portion and a second pipe portion of the network are connected by at least one valve. The valve is formed of a bilayer strip. In response to change in temperature, the shape of the bilayer strip changes to move the valve from a substantially closed position to an open position. In one configuration, the change is irreversible. In another configuration, the change is reversible in response to an opposite change in temperature.
Type:
Application
Filed:
September 16, 2014
Publication date:
March 19, 2015
Applicants:
STMicroelectronics (Crolles 2) SAS, STMicroelectronics SA, Commissariat A L'Energie Atomique et aux Energies Alternatives
Inventors:
Stephane Monfray, Sandrine Lhostis, Christophe Maitre, Olga Kokshagina, Philippe Coronel
Abstract: A circuit having a centralized PT compensation circuit to provide compensation signals to localized I/O blocks on the chip. Process variations and temperature variations tend to be approximately uniform across an integrated circuit chip. Thus, a single, centralized PT compensation circuit may be used instead of one PT compensation circuit per I/O section as with solutions of the past. Further, the PT compensation circuit may generate a digital code indicative of the effects of process and temperature. Further yet, each section of I/O block may have a local voltage compensation circuit to compensate the voltage variation of the I/O block. The voltage compensation circuit utilizes an independent reference voltage. The reference voltage is generated by the PT compensation circuit, which is placed centrally in the IC chip and hence any need to repeat the reference generation for each I/O block is eliminated.
Type:
Grant
Filed:
June 25, 2013
Date of Patent:
March 17, 2015
Assignees:
STMicroelectronics International N.V., STMicroelectronics (Crolles 2) SAS
Inventors:
Vinod Kumar, Pradeep Kumar Badrathwal, Saiyid Mohammad Irshad Rizvi, Paras Garg, Kallol Chatterjee, Pierre Dautriche
Abstract: A semiconductor device may include at least one pad adjacent a top surface of the device, and a metal crack stop structure below the at least one pad. The metal crack structure may have an inner envelope and an outer envelope, and may be configured to be vertically aligned with the at least one pad so that an edge of the at least one pad is between the inner and outer envelopes.
Type:
Grant
Filed:
September 20, 2013
Date of Patent:
March 17, 2015
Assignee:
STMicroelectronics (Crolles 2) SAS
Inventors:
Philippe Delpech, Eric Sabouret, Sebastien Gallois-Garreignot