Patents Assigned to STMicroelectronics, Inc.
  • Publication number: 20150323944
    Abstract: A modulated digital input signal is passed through a conditioning circuit to generate a first input signal. An error amplifier circuit receives the first input signal and a second input signal, and controls the operation of a MOS transistor to generate an output signal that is current modulated. The output signal is sensed to generate a feedback signal. A switching circuit selectively applies the feedback signal as the second input signal in response to a transition of the modulated digital input signal from a first logic state to a second logic state. The switching circuit alternatively selectively applies a fixed reference signal as the second input signal to the error amplifier in response to a transition of the modulated digital input signal from the second logic state to the first logic state.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 12, 2015
    Applicants: STMICROELECTRONICS, INC., STMICROELECTRONICS S.R.L.
    Inventors: Tom Youssef, Alessandro Gasparini, Yamu Hu, Naren K. Sahoo, Anthony Junior Casillan
  • Publication number: 20150325487
    Abstract: On a first semiconductor material substrate, an overlying sacrificial layer formed of a second semiconductor material is deposited. In a first region, a first semiconductor material region is formed over the sacrificial layer. In a second region, a second semiconductor material region is formed over the sacrificial layer. The first semiconductor material region is patterned to define a first FinFET fin. The second semiconductor material region is patterned to define a second FinFET fin. The fins are each covered with a cap and sidewall spacer. The sacrificial layer formed of the second semiconductor material is then selectively removed to form an opening below each of the first and second FinFET fins (with those fins being supported by the sidewall spacers). The openings below each of the fins are then filled with a dielectric material that serves to isolate the semiconductive materials of the fins from the substrate.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 12, 2015
    Applicants: STMicroelectronics, Inc., International Business Machines Corporation
    Inventors: Nicolas Loubet, Prasanna Khare, Qing Liu, Balasubramanian Pranatharthiharan, Shom Ponoth
  • Publication number: 20150323739
    Abstract: A photonic integrated circuit includes optical circuitry fabricated over an underlying circuitry layer. The optical circuitry includes a dielectric material having recesses disposed within, layers of a light waveguide material deposited within the recesses, and lenses disposed over each layer of waveguide material. The underlying circuitry layer may include, for example, a semiconductor wafer as well as circuitry fabricated during front end of line (FEOL) semiconductor manufacturing such as, for example, sources, gates, drains, interconnects, contacts, resistors, and other circuitry that may be manufactured during FEOL processes. The underlying circuitry layer may also include circuitry manufactured during back end of line semiconductor manufacturing processes such as, for example, interconnect structures, metallization layers, and contacts.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 12, 2015
    Applicant: STMicroelectronics, Inc.
    Inventor: John Hongguang Zhang
  • Publication number: 20150325686
    Abstract: Methods of fabricating semiconductor structures involve the formation of fins for finFET transistors having different stress/strain states. Fins of one stress/strain state may be employed to form n-type finFETS, while fins of another stress/strain state may be employed to form p-type finFETs. The fins having different stress/strain states may be fabricated from a common layer of semiconductor material. Semiconductor structures and devices are fabricated using such methods.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 12, 2015
    Applicants: STMICROELECTRONICS, INC., SOITEC
    Inventors: Frédéric Allibert, Pierre Morin
  • Publication number: 20150318285
    Abstract: An interconnect structure for use in coupling transistors in an integrated circuit is disclosed, including various configurations in which ferroelectric capacitors exhibiting negative capacitance are coupled in series with dielectric capacitors. In one embodiment, the negative capacitor includes a dielectric/ferroelectric bi-layer. When a negative capacitor is electrically coupled in series with a conventional dielectric capacitor, the series combination behaves like a stable ferroelectric capacitor for which the overall capacitance can be measured experimentally, and tuned to a desired value. The composite capacitance of a dielectric capacitor and a ferroelectric capacitor having negative capacitance coupled in series is, in theory, infinite, and in practice, very large. A series combination of positive and negative capacitors within a microelectronic interconnect structure can be used to make high capacity DRAM memory cells.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 5, 2015
    Applicant: STMicroelectronics, Inc.
    Inventor: John H. Zhang
  • Patent number: 9179394
    Abstract: A first base station is associated with a first quiet period, and a second base station is associated with a second quiet period. The quiet periods are coordinated so that an amount of overlap between the quiet periods is acceptable. For example, the quiet periods could be coordinated so that no overlap exists between the quiet periods. During the first quiet period, the first base station and/or an associated device (such as a CPE served by the first base station) performs in-band sensing to detect wireless devices that use a first frequency or channel also used by the first base station. During the second quiet period, the first base station and/or a coordinate device (such as a CPE served by the first base station and assisting the second base station) performs out-band sensing to detect wireless devices that use a second frequency or channel also used by the second base station.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: November 3, 2015
    Assignee: STMICROELECTRONICS, INC.
    Inventors: Liwen Chu, Wendong Hu, George Vlantis
  • Patent number: 9174453
    Abstract: Embodiments disclosed herein are directed to a microfluidic refill cartridge having a vent hole and nozzles on a same side of the cartridge. In one or more embodiments, the vent hole and nozzles are located on upper surfaces of the cartridge, such as on a lid that is coupled to a reservoir. In particular, the nozzles and the vent hole may be formed on a microfluidic delivery member that is secured to the lid. A single cover may be used to cover the vent hole and the nozzles. In some embodiments, the single cover may be a flexible material and may adhere to the microfluidic delivery member.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: November 3, 2015
    Assignee: STMicroelectronics, Inc.
    Inventors: Simon Dodd, Joe Scheffelin, Dave Hunt, David Burney
  • Patent number: 9177903
    Abstract: A method of assembling a multi-chip electronic device into a thin electronic package entails inverting a flip-chip die arrangement over a hollow substrate, stacking additional dies on the hollow substrate to form a multi-chip electronic device, and encapsulating the multi-chip electronic device. Containment of the encapsulant can be achieved by joining split substrate portions, or by reinforcing a hollow unitary substrate, using a removable adhesive film. Use of the removable adhesive film facilitates surrounding the multi-chip electronic device with the encapsulant. The adhesive film can also prevent encapsulant from creeping around the substrate to an underside of the substrate that supports solder ball pads for subsequent attachment to a ball grid array (BGA) or a land grid array (LGA).
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: November 3, 2015
    Assignee: STMicroelectronics, Inc.
    Inventors: Bernie Chrisanto Ang, Bryan Christian Bacquian
  • Patent number: 9174445
    Abstract: The present disclosure is directed to a microfluidic die having a substrate with an inlet path that is configured to move fluid into the die. The die includes a plurality of heaters formed above the substrate, each heater having a first area, a plurality of chambers formed above the plurality of heaters, and a plurality of nozzles formed above the chambers. Each nozzle having an entrance adjacent to the chamber and an exit adjacent to en external environment, the entrance having a second area, and the second having a third area, the first area being greater than the second area, and the second area being greater than the third area. A ratio of the first area to the third area being greater than 5 to 1.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: November 3, 2015
    Assignees: STMicroelectronics S.r.l., STMicroelectronics, Inc.
    Inventors: Daniele Prati, Domenico Giusti, Simon Dodd
  • Patent number: 9174835
    Abstract: A method of manufacturing microstructures, such as MEMS or NEMS devices, including forming a protective layer on a surface of a moveable component of the microstructure. For example, a silicide layer may be formed on one or more surfaces of a poly-silicon mass that is moveable with respect to a substrate of the microstructure. The process may be self-aligning.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: November 3, 2015
    Assignee: STMicroelectronics, Inc.
    Inventor: Ming Fang
  • Publication number: 20150311113
    Abstract: An integrated circuit includes a substrate with an interlevel dielectric layer positioned above the substrate. First trenches having a first depth are formed in the interlevel dielectric layer and a metal material fills the first trenches to form first interconnection lines. Second trenches having a second depth are also formed in the interlevel dielectric layer and filled with a metal material to form second interconnection lines. The first and second interconnection lines have a substantially equal pitch, which in a preferred implementation is a sub-lithographic pitch, and different resistivities due to the difference in trench depth. The first and second trenches are formed with an etching process through a hard mask having corresponding first and second openings of different depths. A sidewall image transfer process is used to define sub-lithographic structures for forming the first and second openings in the hard mask.
    Type: Application
    Filed: April 29, 2014
    Publication date: October 29, 2015
    Applicants: STMICROELECTRONICS, INC., INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John Hongguang Zhang, Lawrence A. Clevenger, Carl Radens, Yiheng Xu, Richard Stephen Wise
  • Patent number: 9171757
    Abstract: A shallow trench is formed to extend into a handle substrate of a semiconductor-on-insulator (SOI) layer. A dielectric liner stack of a dielectric metal oxide layer and a silicon nitride layer is formed in the shallow trench, followed by deposition of a shallow trench isolation fill portion. The dielectric liner stack is removed from above a top surface of a top semiconductor portion, followed by removal of a silicon nitride pad layer and an upper vertical portion of the dielectric metal oxide layer. A divot laterally surrounding a stack of a top semiconductor portion and a buried insulator portion is filled with a silicon nitride portion. Gate structures and source/drain structures are subsequently formed. The silicon nitride portion or the dielectric metal oxide layer functions as a stopping layer during formation of source/drain contact via holes, thereby preventing electrical shorts between source/drain contact via structures and the handle substrate.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: October 27, 2015
    Assignees: International Business Machines Corporation, STMicroelectronics, Inc., COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Bruce B. Doris, Shom Ponoth, Prasanna Khare, Qing Liu, Nicolas Loubet, Maud Vinet
  • Publication number: 20150303903
    Abstract: Gain offset and voltage offset compensation for a controllable gain element of a circuit is effected in response to a gain offset value and voltage offset value. A current operating condition of the circuit is sensed and compared to a nominal operating condition. If the current operating condition is outside the nominal operating condition by more than a threshold, a calibration operation to set the gain and voltage offset values is performed. The gain offset value is selected as a function of the sensed current operating condition. With respect to the voltage offset, differential input terminals of the controllable gain element are shunted and the output is measured. The measured output value of the controllable gain element is applied as the voltage offset value. The operating conditions at issue may be one or more of supply voltage and temperature.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Applicant: STMICROELECTRONICS, INC.
    Inventors: Felix Kim, Mark A. Lysinger, Scott V. Ho
  • Publication number: 20150303218
    Abstract: Methods and structures for forming localized, differently-strained regions in a semiconductor layer on a substrate are described. An initial, unstrained, semiconductor-on-insulator substrate may be processed to form the differently-strained regions in the original semiconductor layer. The differently-strained regions may have opposite types of strain. The strains in the different regions may be formed independently.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 22, 2015
    Applicants: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, STMicroelectronics, Inc.
    Inventors: Nicolas Loubet, Sylvain Maitrejean, Romain Wacquez
  • Patent number: 9162339
    Abstract: An adaptive uniform polishing system is equipped with feedback control to apply localized adjustments during a polishing operation. The adaptive uniform polishing system disclosed has particular application to the semiconductor industry. Such an adaptive uniform polishing system includes a rotatable head that holds a semiconductor wafer, and a processing unit structured to be placed in contact with an exposed surface of the wafer. The processing unit includes a rotatable macro-pad and a plurality of rotatable micro-pads that can polish different portions of the exposed surface at different rotation speeds and pressures. Thus, uniformity across the exposed surface can be enhanced by applying customized treatments to different areas. Customized treatments can include the use of different pad materials and geometries. Parameters of the adaptive uniform polishing system are programmable, based on in-situ data or data from other operations in a fabrication process, using advanced process control.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: October 20, 2015
    Assignee: STMicroelectronics, Inc.
    Inventor: John H. Zhang
  • Patent number: 9165867
    Abstract: A semiconductor device may include an integrated circuit (IC), and lead frame contact areas adjacent the IC. Each lead frame contact area may have an opening therein. The semiconductor device may include bond wires, each bond wire coupling a respective lead frame contact area with the IC. The semiconductor device may also include encapsulation material surrounding the IC, the lead frame contact areas, and the bond wires. Solder balls are within the respective opening.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: October 20, 2015
    Assignee: STMICROELECTRONICS, INC.
    Inventors: Ela Mia Cadag, Jefferson Talledo
  • Patent number: 9166049
    Abstract: Methods and structures for increasing strain in fully insulated finFETs are described. The finFET structures may be formed on an insulating layer and include source, channel, and drain regions that are insulated all around. During fabrication, the source and drain regions may be formed as suspended structures. A strain-inducing material may be formed around the source and drain regions on four contiguous sides so as to impart strain to the channel region of the finFET.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: October 20, 2015
    Assignees: STMICROELECTRONICS, INC., INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Nicolas Loubet, Ali Khakifirooz, Pierre Morin, Sanjay C. Mehta
  • Patent number: 9165853
    Abstract: An integrated circuit is provided having an active circuit. A heating element is adjacent to the active circuit and configured to heat the active circuit. A temperature sensor is also adjacent to the active circuit and configured to measure a temperature of the active circuit. A temperature controller is coupled to the active circuit and configured to receive a temperature signal from the temperature sensor. The temperature controller operates the heating element to heat the active circuit to maintain the temperature of the active circuit in a selected temperature range.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: October 20, 2015
    Assignees: STMicroelectronics Asia Pacific Pte. Ltd., STMicroelectronics, Inc.
    Inventors: Fuchao Wang, Olivier Leneel, Ravi Shankar
  • Patent number: 9166023
    Abstract: Methods and structures for forming fully insulated finFETs beginning with a bulk semiconductor substrate are described. Fin structures for finFETs may be formed in two epitaxial layers that are grown over a bulk substrate. A first epitaxial layer may be sacrificial. A final gate structure may be formed around the fin structures, and the first epitaxial layer removed to form a void between a fin and the substrate. The void may be filled with an insulator to fully insulate the fin.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: October 20, 2015
    Assignees: STMICROELECTRONICS, INC., GLOBALFOUNDRIES, INC.
    Inventors: Nicolas Loubet, Prasanna Khare, Jin Cho
  • Publication number: 20150294903
    Abstract: A method of producing a microelectronic device in a substrate comprising a first semiconductor layer, a dielectric layer and a second semiconductor layer, comprising the following steps: etching a trench through the first semiconductor layer, the dielectric layer and a part of the thickness of the second semiconductor layer, thus defining, in the first semiconductor layer, one active region of the microelectronic device, ionic implantation in one or more side walls of the trench, at the level of the second semiconductor layer, modifying the crystallographic properties and/or the chemical properties of the implanted semiconductor, etching of the implanted semiconductor such that at least a part of the trench extends under a part of the active region, —filling of the trench with a dielectric material, forming an isolation trench surrounding the active region and comprising portions extending under a part of the active region.
    Type: Application
    Filed: September 5, 2012
    Publication date: October 15, 2015
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT, STMICROELECTRONICS, INC.
    Inventors: Laurent Grenouillet, Yannick Le Tiec, Nicolas Loubet, Maud Vinet, Romain Wacquez