Patents Assigned to STMicroelectronics, Inc.
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Publication number: 20140299936Abstract: Integrated circuit devices and fabrication techniques. A semiconductor device fabrication method may include doping, in a same processing step, first and second portions of a substrate of an integrated circuit. The first portion corresponds to a doped region of a semiconductor device. The second portion corresponds to a via contact. The method may further include, after the doping, forming the gate of the semiconductor device.Type: ApplicationFiled: April 4, 2013Publication date: October 9, 2014Applicant: STMicroelectronics, Inc.Inventor: John H. Zhang
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Publication number: 20140299938Abstract: Methods and devices for enhancing mobility of charge carriers. An integrated circuit may include semiconductor devices of two types. The first type of device may include a metallic gate and a channel strained in a first manner. The second type of device may include a metallic gate and a channel strained in a second manner. The gates may include, collectively, three or fewer metallic materials. The gates may share a same metallic material. A method of forming the semiconductor devices on an integrated circuit may include depositing first and second metallic layers in first and second regions of the integrated circuit corresponding to the first and second gates, respectively.Type: ApplicationFiled: April 3, 2013Publication date: October 9, 2014Applicant: STMicroelectronics, Inc.Inventor: STMicroelectronics, Inc.
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Patent number: 8853832Abstract: Mutual capacitances between regions of a MOS device become substantial factors that limit the speed and performance of the device as the device dimensions are reduced in size. A MOS transistor with a shielding structure formed above the gate is described. The shielding structure is connected to ground and is configured to reduce at least some of these mutual capacitances.Type: GrantFiled: January 22, 2009Date of Patent: October 7, 2014Assignee: STMicroelectronics Inc.Inventor: Adalberto Cantoni
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Patent number: 8853850Abstract: A packaging scheme for MEMS device is provided. A method of packaging MEMS device in a semiconductor structure includes forming an insulation fence that surrounds the MEMS device on the semiconductor structure. The method further includes attaching a wafer of dielectric material to the insulation fence. The lid wafer, the insulation fence, and the semiconductor structure enclose the MEMS device.Type: GrantFiled: March 4, 2013Date of Patent: October 7, 2014Assignee: STMicroelectronics, Inc.Inventors: Venkatesh Mohanakrishnaswamy, Loi N. Nguyen, Venkata Ramana Yogi Mallela
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Patent number: 8854082Abstract: Disclosed is a deglitcher circuit having a programmable hysteresis. The deglitcher samples a received input signal, wherein the input signal may include one or more glitches. Responsive to a change in state of the sampled input signal, the deglitcher counts the number of samples of the changed state of the input signal. The count value increments with each sampled changed state, and decrements with each sampled original state of the input signal. When the count value reaches a threshold, the state of the output signal is changed. The output signal of the disclosed deglitcher circuit provides an accurate, glitch-free reconstruction of the sampled input signal. Additionally, the disclosed deglitcher circuit reduces the number of memory elements required for a given number of samples of the input signal, thereby allowing for a larger number of samples to be taken without necessarily having to increase the memory elements required by the deglitcher.Type: GrantFiled: December 29, 2010Date of Patent: October 7, 2014Assignee: STMicroelectronics, Inc.Inventor: Vincent Himpe
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Patent number: 8853843Abstract: A semiconductor subassembly, a modular sidewall element having modular dimensions that accommodates placement of the semiconductor subassembly in a modular layout and a semiconductor substrate base element coupled to the modular sidewall element. The semiconductor substrate base element has at least one semiconductor element with a layout sized to be accommodated by modular dimensions of the modular sidewall element and the semiconductor substrate base element configured to form a base of the semiconductor subassembly.Type: GrantFiled: February 28, 2012Date of Patent: October 7, 2014Assignee: STMicroelectronics, Inc.Inventor: Craig J. Rotay
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Patent number: 8853802Abstract: A method that includes forming a first layer having a first dopant concentration, the first layer having an integrated circuit region and a micro-electromechanical region and doping the micro-electromechanical region of the first layer to have a second dopant concentration is presented. The method includes forming a second layer having a third dopant concentration overlying the first layer, doping the second layer that overlies the micro-electromechanical region to have a fourth dopant concentration, forming a micro-electromechanical structure in the micro-electromechanical region using the first and second layers, and forming active components in the integrated circuit region using the second layer.Type: GrantFiled: May 31, 2012Date of Patent: October 7, 2014Assignees: STMicroelectronics, Inc., STMicroelectronics Asia Pacific PTE, Ltd.Inventors: Venkatesh Mohanakrishnaswamy, Olivier Le Neel, Loi N. Nguyen
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Patent number: 8856597Abstract: A validation system includes a test block that operates to apply a set of inputs to a system under test, such as a test system or an executable test algorithm, and receive from said system under test a first set of outputs produced by operation of the system under test in response to application of the set of inputs. The first set of outputs, as well as a second set of outputs reflecting output produced by operation of a reference system or executable reference algorithm in response to application of the same set of inputs, is processed to make a validation determination. A validation processing block compares the first and second sets of outputs to validate the system under test as an equivalent to the reference system.Type: GrantFiled: May 24, 2012Date of Patent: October 7, 2014Assignee: STMicroelectronics, Inc.Inventors: Steven Srebranig, Paul A. Anderson
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Publication number: 20140291750Abstract: A memory device may include a semiconductor substrate, and a memory transistor in the semiconductor substrate. The memory transistor may include source and drain regions in the semiconductor substrate and a channel region therebetween, and a gate stack having a first dielectric layer over the channel region, a second dielectric layer over the first dielectric layer, a first diffusion barrier layer over the second dielectric layer, a first electrically conductive layer over the first diffusion barrier layer, a second diffusion barrier layer over the first electrically conductive layer, and a second electrically conductive layer over the second diffusion barrier layer. The first and second dielectric layers may include different dielectric materials, and the first diffusion barrier layer may be thinner than the second diffusion barrier layer.Type: ApplicationFiled: March 28, 2013Publication date: October 2, 2014Applicants: INTERNATIONAL BUSINESS MACHINES CORPORATION, STMICROELECTRONICS, INC.Inventors: Prasanna KHARE, Stephane Allegret-Maret, Nicolas Loubet, Qing Liu, Hemanth Jagannathan, Lisa Edge, Kangguo Cheng, Bruce Doris
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Publication number: 20140293687Abstract: A semiconductor device may include a substrate, and an array of PCM memory cells above the substrate. Each PCM memory cell may include first and second vertically aligned electrodes, a first dielectric layer between the first and second electrodes, a carbon nanotube extending vertically through the first dielectric layer from the second electrode and toward the first electrode, and a PCM body between the first electrode and the at least one carbon nanotube.Type: ApplicationFiled: March 28, 2013Publication date: October 2, 2014Applicant: STMICROELECTRONICS, INC.Inventor: John H. ZHANG
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Publication number: 20140291842Abstract: 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: ApplicationFiled: March 29, 2013Publication date: October 2, 2014Applicant: STMicroelectronics, Inc.Inventors: Bernie Chrisanto ANG, Bryan Christian BACQUIAN
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Publication number: 20140298122Abstract: A dual-master controller includes a plurality of JTAG data registers including a controller-mode register that stores information indicating a standard JTAG or a processor-controlled mode of operation. A JTAG TAP controller receives control signals over a standard test access port and a processor controller receives processor control signals over an external processor bus. A selection multiplexer outputs either signals on the standard JTAG access port or the external processor bus responsive to a JTAG mode selection signal. A logic circuit activates the JTAG mode selection signal responsive to the force JTAG signal being active or information in the controller-mode register indicating the standard JTAG mode, and deactivates the JTAG mode selection signal responsive to the force JTAG signal being deactivated or the information in the controller-mode register indicating the processor-controller mode.Type: ApplicationFiled: March 28, 2013Publication date: October 2, 2014Applicant: STMicroelectronics, Inc.Inventors: MARCO BRAMBILLA, ULDERIC LACOUR, CECILIA OZDEMIR
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Patent number: 8836041Abstract: Silicon germanium regions are formed adjacent gates electrodes over both n-type and p-type regions in an integrated circuit. A hard mask patterned by lithography then protects structures over the p-type region while the silicon germanium is selectively removed from over the n-type region, even under remnants of the hard mask on sidewall spacers on the gate electrode. Silicon germanium carbon is epitaxially grown adjacent the gate electrode in place of the removed silicon germanium, and source/drain extension implants are performed prior to removal of the remaining hard mask over the p-type region structures.Type: GrantFiled: November 16, 2012Date of Patent: September 16, 2014Assignees: STMicroelectronics, Inc., International Business Machines CorporationInventors: Nicholas Loubet, Balasubramanian Pranatharthiharan
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Patent number: 8838953Abstract: A provisioning device is provided that communicates over a trusted out-of-band communications channel to digital electronic devices in order to exchange security data such as passwords and private or public keys, thereby establishing a secure communications network between the devices.Type: GrantFiled: June 5, 2008Date of Patent: September 16, 2014Assignee: STMicroelectronics, Inc.Inventor: Oleg Logvinov
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Publication number: 20140254292Abstract: Described herein are various principles for designing, manufacturing, and operating integrated circuits having functional components and one or more metal interconnect layers, where the dimensions of signal lines of the metal interconnect layers are larger than dimensions of the functional components. In some embodiments, a signal line may have a width greater than a width of a terminal of a functional component to which the signal line is connected. In some embodiments, two functional components formed in a same functional layer of the integrated circuit may be connected to metal signal lines in different metal interconnect layers. Further, the metal signal lines of the different metal interconnect layers may overlap some distance.Type: ApplicationFiled: May 27, 2014Publication date: September 11, 2014Applicant: STMicroelectronics, Inc.Inventor: David V. Carlson
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Patent number: 8829670Abstract: The present disclosure is directed to a device that includes a first substrate having a first plurality of hollow pillars on the first substrate and a first plurality of channels in the first substrate coupled to the first plurality of hollow pillars. The device includes a second substrate attached to the first substrate, the second substrate having a second plurality of hollow pillars on the second substrate and a second plurality of channels in the second substrate coupled to the second plurality of hollow pillars, the first plurality of hollow pillars being coupled to the second plurality of hollow pillars to allow a fluid medium to move through the substrate to cool the first substrate and the second substrate.Type: GrantFiled: June 28, 2013Date of Patent: September 9, 2014Assignees: STMicroelectronics, Inc., International Business Machines CorporationInventors: John H. Zhang, Lawrence A. Clevenger, Carl Radens, Yiheng Xu, Edem Wornyo
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Patent number: 8827165Abstract: An integrated circuit includes an output pad, an alarm output pad, and a test mode output pad. A first multi-bit register is programmable to store programmable data such as data that identifies a customer for whom the integrated circuit has been manufactured. A second multi-bit register is programmable to store customer specified threshold data. A first circuit selectively couples the first and second multi-bit registers to the output pad. The first circuit is operable responsive to the integrated circuit being placed into a test mode to perform parallel-to-serial conversion of either the customer identification data stored in the first multi-bit register or the customer specified threshold data stored in the second multi-bit register and drive the converted data for output through the output pad. The integrated circuit further includes a tamper detection circuit operable responsive to the customer specified threshold data to generate a tamper alarm signal.Type: GrantFiled: March 3, 2011Date of Patent: September 9, 2014Assignee: STMicroelectronics, Inc.Inventors: David C. McClure, Sooping Saw, Robert Wadsworth
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Patent number: 8822994Abstract: A method that includes forming a first level of active circuitry on a substrate, forming a first probe pad electrically connected to the first level of active circuitry where the first probe pad having a first surface, contacting the first probe pad with a probe tip that displaces a portion of the first probe pad above the first surface, and performing a chemical mechanical polish on the first probe pad to planarize the portion of the first probe pad above the first surface. The method also includes forming a second level of active circuitry overlying the first probe pad, forming a second probe pad electrically connected to the second level of active circuitry, contacting the second probe pad with a probe tip that displaces a portion of the probe pad, and chemically mechanically polishing the second probe pad to remove the portion displaced.Type: GrantFiled: September 13, 2012Date of Patent: September 2, 2014Assignees: STMicroelectronics, Inc., International Business Machines CorporationInventors: John H. Zhang, Laertis Economikos, Robin Van Den Nieuwenhuizen, Wei-Tsu Tseng
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Patent number: 8824432Abstract: A protocol for inter-cell communication in a cognitive radio wireless access network using beacon period framing is disclosed. By establishing scheduled use of beacon periods within each frame of a super-frame among a plurality of participating cells in a wireless access network, efficient and reliable communication can take place eliminating beacon packet collisions and bandwidth wastage. Within each super-frame exits 16 data frames of fixed size which can each include both a data transmission portion and a beacon period. A protocol is established by which announcement, reserved, and free-to-use beacon periods are established within the super-frames associated with a particular spectrum. By coordinating communication between cells on the beacon period, collision between cells by simultaneous attempts to transmit or bandwidth wastage of periods in which no transmission takes place can be avoided.Type: GrantFiled: January 15, 2009Date of Patent: September 2, 2014Assignee: STMicroelectronics, Inc.Inventor: Wendong Hu
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Publication number: 20140240863Abstract: A modified soft output Viterbi algorithm (SOVA) detector receives a sequence of soft information values and determines a best path and an alternate path for each soft information value and further determines, when the best and alternate paths lead to the same value for a given soft information value, whether there is a third path departing from the alternate path that leads to an opposite decision with respect to the best path for a given soft information value. The SOVA detector then considers this third path when updating the reliability of the best path. The modified SOVA detector achieves max-log-map equivalence effectively through the Fossorier approach and includes modified reliability metric units for the first N stages of the SOVA detector, where N is the memory depth of a given path, and includes conventional reliability metric units for the remaining stages of the detector.Type: ApplicationFiled: February 27, 2014Publication date: August 28, 2014Applicant: STMICROELECTRONICS INC.Inventors: Sivagnanam PARTHASARATHY, Lun Bin HUANG, Alessandro RISSO