Combination Of Complementary Transistors Having A Different Structure, E.g. Stacked Cmos, High-voltage And Low-voltage Cmos (epo) Patents (Class 257/E27.064)
  • Patent number: 11374572
    Abstract: A complementary circuit, including a logic unit which includes pull-up depletion-mode MOS transistors and pull-down depletion-mode MOS transistors and a level shifting circuit coupled to the logic unit.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 28, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bahman Hekmatshoartabari, Ghavam G. Shahidi
  • Patent number: 10811951
    Abstract: A GaN driver circuit is disclosed. The circuit includes a low side switch causing the voltage at an output node to be a first voltage, a high side switch causing the voltage at the output node to be a second voltage in response to a control signal, and a high side switch driver circuit configured to cause the high side switch to apply the second voltage to the output node. The high side switch driver includes a pull-down switch configured to turn off the high side switch in response to an input signal, and a pass gate configured to cause the high side switch to apply the second voltage to the output node by causing the voltage of the control signal to become substantially equal to the second voltage plus a third voltage.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: October 20, 2020
    Assignee: Navitas Semiconductor, Inc.
    Inventors: Santosh Sharma, Daniel Marvin Kinzer
  • Patent number: 10554112
    Abstract: A GaN driver circuit is disclosed. The circuit includes a low side switch causing the voltage at an output node to be a first voltage, a high side switch causing the voltage at the output node to be a second voltage in response to a control signal, and a high side switch driver circuit configured to cause the high side switch to apply the second voltage to the output node. The high side switch driver includes a pull-down switch configured to turn off the high side switch in response to an input signal, and a pass gate configured to cause the high side switch to apply the second voltage to the output node by causing the voltage of the control signal to become substantially equal to the second voltage plus a third voltage.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: February 4, 2020
    Assignee: Navitas Semiconductor, Inc.
    Inventors: Santosh Sharma, Daniel Marvin Kinzer
  • Patent number: 10340395
    Abstract: Certain aspects of the present disclosure generally relate to a semiconductor variable capacitor, and techniques for fabricating the same, implemented using a threshold voltage implant region. For example, the semiconductor variable capacitor generally includes a first non-insulative region disposed above a first semiconductor region, a second non-insulative region disposed above the first semiconductor region, and a threshold voltage (Vt) implant region interposed between the first non-insulative region and the first semiconductor region and disposed adjacent to the second non-insulative region. In certain aspects, the semiconductor variable capacitor also includes a control region disposed above the first semiconductor region such that a capacitance between the first non-insulative region and the second non-insulative region is configured to be adjusted by varying a control voltage applied to the control region.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: July 2, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Xia Li, Fabio Alessio Marino, Qingqing Liang, Francesco Carobolante, Seung Hyuk Kang
  • Patent number: 10148086
    Abstract: A power switch capable of preventing a reverse connection is provided. The power switch includes a switch that is configured to supply power of a battery to a load or block the power of the battery and a protector that is connected to an output terminal of the switch and blocks the power applied from the battery when the battery is reversely connected and a driver is configured to operate a driving of the switch and the protector.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: December 4, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-Academic Cooperation Foundation, Dankook University
    Inventors: Sang Hyun Jang, Sun Woo Kim, Hee Jun Lee, Shi Hong Park, Jun Sik Kim, Jae Hyun Park
  • Patent number: 9871508
    Abstract: A monolithic integrated circuit (IC) switch device includes an input pin that receives an input power supply and an output pin that is connected to a load. The monolithic IC switch device includes driving circuitry that controls a switching operation of a power switch to connect and disconnect the input power supply to and from the load. A microcontroller can enable or disable the monolithic IC switch device based on indicator signals received by the microcontroller from the monolithic IC switch device.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: January 16, 2018
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Ying Xiao, Rohan Samsi, Jinghai Zhou
  • Patent number: 9817426
    Abstract: Embodiments of voltage regulators and methods for operating a voltage regulator are described. In one embodiment, a voltage regulator includes a set of current mirror circuits configured to convert an input voltage into an output voltage and a voltage buffer circuit configured to buffer a reference voltage for the set of current mirror circuits. The set of current mirror circuits form a positive feedback loop. Other embodiments are also described.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: November 14, 2017
    Assignee: NXP B.V.
    Inventor: Ananthasayanam Chellappa
  • Patent number: 9529016
    Abstract: A transistor arrangement is disclosed. The transistor arrangement includes at least first and second sets of sense cells and at least one set of main cells. Each set of sense cells shares drain and gate connections with an associated set of main cells, with a different ratio of number of sense cells to associated main cells for the first set as for the second set.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 27, 2016
    Assignee: NXP B.V.
    Inventor: Steven Aerts
  • Patent number: 9450089
    Abstract: A decrease in resistance against an abnormal current of a semiconductor device is suppressed. A first transistor is sandwiched between two second transistors (a first one and a second one of the second transistors) in a second direction. Both of a distance between a second source contact and a second drain contact that are coupled to the one second transistor, and a distance between a second source contact and a second drain contact that are coupled to the other second transistor are larger than a distance between a second source contact and a second drain contact that are coupled to a third one of the second transistors located farthest from the first transistor in the second direction.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: September 20, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Takeshi Toda, Mototsugu Okushima
  • Patent number: 8994116
    Abstract: Provided is a method of fabricating a semiconductor device that includes forming first and second fins over first and second regions of a substrate, forming first and second gate structures over the first and second fins, the first and second gate structures including first and second poly gates, forming an inter-level dielectric (ILD) over the substrate, performing a chemical mechanical polishing on the ILD to expose the first and second poly gates, forming a mask to protect the first poly gate of the first gate structure, removing the second poly gate thereby forming a first trench, removing the mask, partially removing the first poly gate thereby forming a second trench, forming a work function metal layer partially filling the first and second trenches, forming a fill metal layer filling a remainder of the first and second trenches, and removing the metal layers outside the first and second trenches.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: March 31, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tian-Choy Gan, Hsien-Chin Lin, Chia-Pin Lin, Shyue-Shyh Lin, Li-Shiun Chen, Shin Hsien Liao
  • Patent number: 8987120
    Abstract: The present invention relates to a flat panel display device comprising a polysilicon thin film transistor and a method of manufacturing the same. Grain sizes of polysilicon grains formed in active channel regions of thin film transistors of a driving circuit portion and a pixel portion of the flat panel display device are different from each other. Further, the flat panel display device comprising P-type and N-type thin film transistors having different particle shapes from each other.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Yong Park, Jae-Bon Koo, Hye-Hyang Park, Ki-Yong Lee, Ul-Ho Lee
  • Patent number: 8963158
    Abstract: Design structures, structures and methods of manufacturing structures for providing latch-up immunity for mixed voltage integrated circuits. The structure includes a diffused N-Tub structure embedded in a P-wafer and provided below a retrograde N-well to a non-isolated CMOS logic.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: February 24, 2015
    Assignee: International Business Machines Corporation
    Inventor: Steven H. Voldman
  • Patent number: 8912607
    Abstract: The thickness and composition of a gate dielectric can be selected for different types of field effect transistors through a planar high dielectric constant material portion, which can be provided only for selected types of field effect transistors. Further, the work function of field effect transistors can be tuned independent of selection of the material stack for the gate dielectric. A stack of a barrier metal layer and a first-type work function metal layer is deposited on a gate dielectric layer within recessed gate cavities after removal of disposable gate material portions. After patterning the first-type work function metal layer, a second-type work function metal layer is deposited directly on the barrier metal layer in the regions of the second type field effect transistor. A conductive material fills the gate cavities, and a subsequent planarization process forms dual work function metal gate structures.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 16, 2014
    Assignee: International Business Machines Corporation
    Inventors: Unoh Kwon, Ramachandra Divakaruni, Siddarth A. Krishnan, Ravikumar Ramachandran
  • Patent number: 8912601
    Abstract: The present invention discloses a double diffused drain metal oxide semiconductor (DDDMOS) device and a manufacturing method thereof. The DDDMOS device is formed in a substrate, and includes a first well, a gate, a diffusion region, a source, and a drain. A low voltage device is also formed in the substrate, which includes a second well and a lightly doped drain (LDD) region, wherein the first well and the diffusion region are formed by process steps which also form the second well and the LDD region in the low voltage device, respectively.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: December 16, 2014
    Assignee: Richtek Technology Corporation
    Inventors: Tsung-Yi Huang, Chien-Hao Huang
  • Patent number: 8847315
    Abstract: A complementary metal-oxide-semiconductor (CMOS) device and methods of formation thereof are disclosed. In a particular embodiment, a CMOS device includes a silicon substrate, a dielectric insulator material on the silicon substrate, and an extension layer on the dielectric insulator material. The CMOS device further includes a gate in contact with a channel and in contact with an extension region. The CMOS device also includes a source in contact with the extension region and a drain in contact with the extension region. The extension region includes a first region in contact with the source and the gate and includes a second region in contact with the drain and the gate.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: September 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Bin Yang, Xia Li, Jun Yuan
  • Patent number: 8809990
    Abstract: Provided are a semiconductor device including a high voltage transistor and a low voltage transistor and a method of manufacturing the same. The semiconductor device includes a semiconductor substrate including a high voltage region and a low voltage region; a high voltage transistor formed in the high voltage region and including a first active region, a first source/drain region, a first gate insulating layer, and a first gate electrode; and a low voltage transistor formed in the low voltage region and including a second active region, a second source/drain region, a second gate insulating layer, and a second gate electrode. The second source/drain region has a smaller thickness than a thickness of the first source/drain region.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: August 19, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shigenobu Maeda, Hyun-pil Noh, Choong-ho Lee, Seog-heon Ham
  • Patent number: 8803204
    Abstract: In a manufacturing method of a solid-state image pickup device according to an embodiment, a transfer gate electrode is formed in a predetermined position on an upper surface of a first conductive semiconductor area, through a gate insulating film. A second conductive charge storage area is formed in an area adjacent to the transfer gate electrode in the first conductive semiconductor area. A sidewall is formed on a side surface of the transfer gate electrode. An insulating film is formed to extend from a circumference surface of the sidewall on a side of the charge storage area to a position partially covering the upper part of the charge storage area. A first conductive charge storage layer is formed in the charge storage area by implanting first conductive impurities from above, into the charge storage area which is partially covered with the insulating film.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: August 12, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Atsushi Ohta, Hitohisa Ono
  • Patent number: 8772755
    Abstract: A nanowire field effect transistor (FET) device, includes a source region comprising a first semiconductor layer disposed on a second semiconductor layer, the source region having a surface parallel to {110} crystalline planes and opposing sidewall surfaces parallel to the {110} crystalline planes, a drain region comprising the first semiconductor layer disposed on the second semiconductor layer, the source region having a face parallel to the {110} crystalline planes and opposing sidewall surfaces parallel to the {110} crystalline planes, and a nanowire channel member suspended by the source region and the drain region, wherein nanowire channel includes the first semiconductor layer, and opposing sidewall surfaces parallel to {100} crystalline planes and opposing faces parallel to the {110} crystalline planes.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: July 8, 2014
    Assignee: International Business Machines Corporation
    Inventors: Sarunya Bangsaruntip, Guy M. Cohen, Jeffrey W. Sleight
  • Patent number: 8716072
    Abstract: A substrate includes a first source region and a first drain region each having a first semiconductor layer disposed on a second semiconductor layer and a surface parallel to {110} crystalline planes and opposing sidewall surfaces parallel to the {110} crystalline planes; nanowire channel members suspended by the first source region and the first drain region, where the nanowire channel members include the first semiconductor layer, and opposing sidewall surfaces parallel to {100} crystalline planes and opposing faces parallel to the {110} crystalline planes. The substrate further includes a second source and drain regions having the characteristics of the first source and drain regions, and a single channel member suspended by the second source region and the second drain region and having the same characteristics as the nanowire channel members. A width of the single channel member is at least several times a width of a single nanowire member.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: May 6, 2014
    Assignee: International Business Machines Corporation
    Inventors: Sarunya Bangsaruntip, Josephine B. Chang, Leland Chang, Jeffrey W. Sleight
  • Patent number: 8704311
    Abstract: The semiconductor device includes a first transistor including a first impurity layer of a first conductivity type formed in a first region of a semiconductor substrate, a first epitaxial semiconductor layer formed above the first impurity layer, a first gate insulating film formed above the first epitaxial semiconductor layer, and a first gate electrode formed above the first gate insulating film, and a second transistor including a second impurity layer of the second conductivity type formed in a second region of the semiconductor substrate, a second epitaxial semiconductor layer formed above the second impurity layer and having a thickness different from that of the first epitaxial semiconductor layer, a second gate insulating film formed above the second epitaxial semiconductor layer and having a film thickness equal to that of the first gate insulating film and a second gate electrode formed above the second gate insulating film.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: April 22, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Kazushi Fujita, Taiji Ema, Hiroyuki Ogawa
  • Patent number: 8686504
    Abstract: The present invention discloses a double diffused drain metal oxide semiconductor (DDDMOS) device and a manufacturing method thereof. The DDDMOS device is formed in a substrate, and includes a first well, a gate, a diffusion region, a source, and a drain. A low voltage device is also formed in the substrate, which includes a second well and a lightly doped drain (LDD) region, wherein the first well and the diffusion region are formed by process steps which also form the second well and the LDD region in the low voltage device, respectively.
    Type: Grant
    Filed: July 22, 2012
    Date of Patent: April 1, 2014
    Assignee: Richtek Technology Corporation, R.O.C.
    Inventors: Tsung-Yi Huang, Chien-Hao Huang
  • Patent number: 8674471
    Abstract: A semiconductor device supplying a charging current to a charging-target element includes: a semiconductor layer of a first conductivity type; a first semiconductor region of a second conductivity type formed on a main surface of the semiconductor layer and having a first node coupled to a first electrode of the charging-target element and a second node coupled to a power supply potential node supplied with a power supply voltage; a second semiconductor region of the first conductivity type formed in a surface of the first semiconductor region at a distance from the semiconductor layer and having a third node coupled to the power supply potential node; and a charge carrier drift restriction portion restricting drift of charge carrier from the third node to the semiconductor layer.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 18, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventor: Tomohide Terashima
  • Patent number: 8669150
    Abstract: A semiconductor device including a capacitor and a proximate high-voltage gate having a boron-barrier layer that ideally serves as part of both the capacitor dielectric and the (high voltage) HV gate oxide. The boron-barrier layer is preferably formed over a poly oxide layer that is in turn deposited on a substrate infused to create a neighboring wells, and N-well over which the capacitor will be formed, and P-well to be overlaid by the HV gate. The boron-barrier helps to reduce or eliminate the harmful effects of boron diffusion from the P-well during TEOS deposition of the gate oxide material.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: March 11, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chyi-Chyuan Huang, Shyh-An Lin, Chen-Fu Hsu
  • Patent number: 8659112
    Abstract: A method of forming an integrated circuit (IC) including a core and a non-core PMOS transistor includes forming a non-core gate structure including a gate electrode on a gate dielectric and a core gate structure including a gate electrode on a gate dielectric. The gate dielectric for the non-core gate structure is at least 2 ? of equivalent oxide thickness (EOT) thicker as compared to the gate dielectric for the core gate structure. P-type lightly doped drain (PLDD) implantation including boron establishes source/drain extension regions in the substrate. The PLDD implantation includes selective co-implanting of carbon and nitrogen into the source/drain extension region of the non-core gate structure. Source and drain implantation forms source/drain regions for the non-core and core gate structure, wherein the source/drain regions are distanced from the non-core and core gate structures further than their source/drain extension regions. Source/drain annealing is performed after source and drain implantation.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: February 25, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Mahalingam Nandakumar, Amitabh Jain
  • Patent number: 8643113
    Abstract: A process is disclosed of forming metal replacement gates for NMOS and PMOS transistors with oxygen in the PMOS metal gates and metal atom enrichment in the NMOS gates such that the PMOS gates have effective work functions above 4.85 eV and the NMOS gates have effective work functions below 4.25 eV. Metal work function layers in both the NMOS and PMOS gates are oxidized to increase their effective work functions to the desired PMOS range. An oxygen diffusion blocking layer is formed over the PMOS gate and an oxygen getter is formed over the NMOS gates. A getter anneal extracts the oxygen from the NMOS work function layers and adds metal atom enrichment to the NMOS work function layers, reducing their effective work functions to the desired NMOS range. Processes and materials for the metal work function layers, the oxidation process and oxygen gettering are disclosed.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: February 4, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: James Joseph Chambers, Hiroaki Niimi
  • Patent number: 8643114
    Abstract: A semiconductor device includes: a substrate; a p-type organic transistor including an organic semiconductor layer arranged on or above the substrate; and an n-type inorganic transistor including an inorganic semiconductor layer arranged on or above the organic transistor, wherein a channel region of the inorganic transistor overlaps a channel region of the organic transistor at least partially in a plan view.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: February 4, 2014
    Assignees: Seiko Epson Corporation, Ryukoku University
    Inventors: Takashi Aoki, Mutsumi Kimura, Takashi Nakanishi, Mariko Sakemi
  • Patent number: 8629021
    Abstract: A method for making an NMOS transistor on a semiconductor substrate includes reducing the thickness of the PMD layer to expose the polysilicon gate electrode of the NMOS transistor and the polysilicon gate electrode of the PMOS transistor, and then removing the gate electrode of the NMOS transistor. The method also includes depositing a NMOS-metal layer over the semiconductor substrate, depositing a fill-metal layer over the NMOS-metal layer, and then reducing the thickness of the NMOS metal layer and the fill metal layer to expose the gate electrodes of the NMOS transistor and the PMOS transistor.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: January 14, 2014
    Assignee: Texas Instruments Incorporated
    Inventor: Michael Francis Pas
  • Patent number: 8609495
    Abstract: Provided is a method of fabricating a semiconductor device that includes forming first and second fins over first and second regions of a substrate, forming first and second gate structures over the first and second fins, the first and second gate structures including first and second poly gates, forming an inter-level dielectric (ILD) over the substrate, performing a chemical mechanical polishing on the ILD to expose the first and second poly gates, forming a mask to protect the first poly gate of the first gate structure, removing the second poly gate thereby forming a first trench, removing the mask, partially removing the first poly gate thereby forming a second trench, forming a work function metal layer partially filling the first and second trenches, forming a fill metal layer filling a remainder of the first and second trenches, and removing the metal layers outside the first and second trenches.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: December 17, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tian-Choy Gan, Hsien-Chin Lin, Chia-Pin Lin, Shyue-Shyh Lin, Li-Shiun Chen, Shin Hsien Liao
  • Patent number: 8574974
    Abstract: Forming a photoresist on a region other than a region on a trench gate electrode for a mask, a third gate insulating film on the trench gate electrode is etched and removed. After that, a non-doped polycrystalline silicon layer is formed on second and third gate insulating films and also on the trench gate electrode, and, N-type and P-type high concentration impurities are introduced by an ion implantation with the use of separate masks on the polycrystalline silicon layer of NMOS transistors and PMOS transistors with a low breakdown voltage and a high breakdown voltage. Then, a second gate electrode is formed by anisotropic etching. With the steps as described above, a first gate electrode inside the trench and the second gate electrode to be used in the lateral MOS transistor are laminated, to thereby reduce fluctuations due to the etching.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: November 5, 2013
    Assignee: Seiko Instruments Inc.
    Inventor: Yukimasa Minami
  • Patent number: 8569881
    Abstract: A semiconductor device includes a baseplate and a first and a second insulated gate bipolar transistor (IGBT) substrate coupled to the baseplate. The semiconductor device includes a first and a second diode substrate coupled to the baseplate and a first, a second, and a third control substrate coupled to the baseplate. Bond wires couple the first and second IGBT substrates to the first control substrate. Bond wires couple the first and second IGBT substrates to the second control substrate via the first and second diode substrates, and bond wires couple the first and second IGBT substrates to the third control substrate via the second diode substrate.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: October 29, 2013
    Assignee: Infineon Technologies AG
    Inventors: Reinhold Spanke, Waleri Brekel, Ivonne Benzler
  • Patent number: 8569801
    Abstract: A three-dimensional CMOS circuit having at least a first N-conductivity field-effect transistor and a second P-conductivity field-effect transistor respectively formed on first and second crystalline substrates. The first field-effect transistor is oriented, in the first substrate, with a first secondary crystallographic orientation. The second field-effect transistor is oriented, in the second substrate, with a second secondary crystallographic orientation. The orientations of the first and second transistors form a different angle from the angle formed, in one of the substrates, by the first and second secondary crystallographic directions. The first and second substrates are assembled vertically.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: October 29, 2013
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventor: Benjamin Vincent
  • Patent number: 8558310
    Abstract: A method of forming an integrated circuit (IC) having at least one PMOS transistor includes performing PLDD implantation including co-implanting indium, carbon and a halogen, and a boron specie to establish source/drain extension regions in a substrate having a semiconductor surface on either side of a gate structure including a gate electrode on a gate dielectric formed on the semiconductor surface. Source and drain implantation is performed to establish source/drain regions, wherein the source/drain regions are distanced from the gate structure further than the source/drain extension regions. Source/drain annealing is performed after the source and drain implantation. The co-implants can be selectively provided to only core PMOS transistors, and the method can include a ultra high temperature anneal such as a laser anneal after the PLDD implantation.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 15, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Mahalingam Nandakumar, Amitabh Jain
  • Patent number: 8541774
    Abstract: A substrate includes a first source region and a first drain region each having a first semiconductor layer disposed on a second semiconductor layer and a surface parallel to {110} crystalline planes and opposing sidewall surfaces parallel to the {110} crystalline planes; nanowire channel members suspended by the first source region and the first drain region, where the nanowire channel members include the first semiconductor layer, and opposing sidewall surfaces parallel to {100} crystalline planes and opposing faces parallel to the {110} crystalline planes. The substrate further includes a second source and drain regions having the characteristics of the first source and drain regions, and a single channel member suspended by the second source region and the second drain region and having the same characteristics as the nanowire channel members. A width of the single channel member is at least several times a width of a single nanowire member.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: September 24, 2013
    Assignee: International Business Machines Corporation
    Inventors: Sarunya Bangsaruntip, Josephine B. Chang, Leland Chang, Jeffrey W. Sleight
  • Patent number: 8530996
    Abstract: A semiconductor device includes a high-side field-effect transistor including a high-side drain electrode, a high-side gate electrode, and a high-side source electrode; and a first low-side field-effect transistor including a first low-side drain electrode, a first low-side gate electrode and a first low-side source electrode, wherein the high-side source electrode and the first low-side drain electrode are shared as a single source and drain electrode, and the high-side drain electrode, the high-side gate electrode, the source and drain electrode, the first low-side gate electrode and the first low-side source electrode are arranged in this order while being interposed by gaps, respectively.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: September 10, 2013
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Ken Shono
  • Patent number: 8530974
    Abstract: A complementary metal oxide semiconductor (CMOS) structure having multiple threshold voltage devices includes a first transistor device and a second transistor device formed on a semiconductor substrate. A set of vertical oxide spacers selectively formed for the first transistor device are in direct contact with a gate dielectric layer of the first transistor device such that the first transistor device has a shifted threshold voltage with respect to the second transistor device.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: September 10, 2013
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Ali Khakifirooz, Pranita Kulkarni
  • Patent number: 8519402
    Abstract: Design structures, structures and methods of manufacturing structures for providing latch-up immunity for mixed voltage integrated circuits. The structure includes a diffused N-Tub structure embedded in a P-wafer and provided below a retrograde N-well to a non-isolated CMOS logic.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: August 27, 2013
    Assignee: International Business Machines Corporation
    Inventor: Steven H. Voldman
  • Patent number: 8487382
    Abstract: The present disclosure provides a method for making metal gate stacks of a semiconductor device. The method includes forming a high k dielectric material layer on a semiconductor substrate; forming a conductive material layer on the high k dielectric material layer; forming a dummy gate in a n-type field-effect transistor (nFET) region and a second dummy gate in a pFET region employing polysilicon; forming an inter-level dielectric (ILD) material on the semiconductor substrate; applying a first chemical mechanical polishing (CMP) process to the semiconductor substrate; removing the polysilicon from the first dummy gate, resulting in a first gate trench; forming a n-type metal to the first gate trench; applying a second CMP process to the semiconductor substrate; removing the polysilicon from the second dummy gate, resulting in a second gate trench; forming a p-type metal to the second gate trench; and applying a third CMP process to the semiconductor substrate.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: July 16, 2013
    Assignee: Taiwan Semiconductor Maufacturing Company, Ltd.
    Inventors: Sheng-Chen Chung, Kong-Beng Thei, Harry Chuang
  • Patent number: 8482070
    Abstract: An IC has cells placed in a cell row having a UTBOX-FDSOI pMOSFET including a ground beneath the pMOS, and an n-doped well beneath it and configured to apply a potential thereto, and a UTBOX-FDSOI nMOSFET including a ground beneath the nMOS, and a p-doped well beneath the ground and configured to apply a potential thereto, and cells, each including a UTBOX-FDSOI pMOSFET including a ground beneath the pMOS, and a p-doped well beneath the ground and configured to apply an electrical potential to the ground, and a UTBOX-FDSOI nMOSFET including a ground beneath the nMOS, and an n-doped well beneath the ground and configured to apply a potential thereto. The cells are placed so that pMOS's of standard cells belonging to a row align along it and a transition cell including a another well and contiguous with first row standard cells thus ensuring continuity with wells of those cells.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: July 9, 2013
    Assignee: STMicroelectronics (Crolles 2)
    Inventors: Philippe Flatresse, Bastien Giraud, Jean-Philippe Noel, Matthieu Le Boulaire
  • Patent number: 8476706
    Abstract: A delta doping of silicon by carbon is provided on silicon surfaces by depositing a silicon carbon alloy layer on silicon surfaces, which can be horizontal surfaces of a bulk silicon substrate, horizontal surfaces of a top silicon layer of a semiconductor-on-insulator substrate, or vertical surfaces of silicon fins. A p-type field effect transistor (PFET) region and an n-type field effect transistor (NFET) region can be differentiated by selectively depositing a silicon germanium alloy layer in the PFET region, and not in the NFET region. The silicon germanium alloy layer in the PFET region can overlie or underlie a silicon carbon alloy layer. A common material stack can be employed for gate dielectrics and gate electrodes for a PFET and an NFET. Each channel of the PFET and the NFET includes a silicon carbon alloy layer, and is differentiated by the presence or absence of a silicon germanium layer.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: July 2, 2013
    Assignee: International Business Machines Corporation
    Inventors: Dureseti Chidambarrao, Brian J. Greene, Yue Liang, Xiaojun Yu
  • Patent number: 8466451
    Abstract: A FET inverter is provided that includes a plurality of device layers oriented vertically in a stack, each device layer having a source region, a drain region and a plurality of nanowire channels, wherein the source and drain regions of one or more of the device layers are doped with an n-type dopant and the source and drain regions of one or more other of the device layers are doped with a p-type dopant; a gate common to each of the device layers surrounding the nanowire channels; a first contact to the source regions of the one or more device layers doped with an n-type dopant; a second contact to the source regions of the one or more device layers doped with a p-type dopant; and a third contact common to the drain regions of each of the device layers. Techniques for fabricating a FET inverter are also provided.
    Type: Grant
    Filed: December 11, 2011
    Date of Patent: June 18, 2013
    Assignee: International Business Machines Corporation
    Inventors: Josephine Chang, Paul Chang, Michael A. Guillorn, Jeffrey Sleight
  • Patent number: 8445969
    Abstract: An integrated circuit structure comprises at least one pair of complementary transistors on a substrate. The pair of complementary transistors includes a first transistor and a second transistor. In addition, only one stress-producing layer is on the first transistor and the second transistor and applies tensile strain force on the first transistor and the second transistor. The first transistor has a first channel region, a gate insulator on the first channel region, and a deuterium region between the first channel region and the gate insulator. The second transistor has a germanium doped channel region, as well as the same gate insulator on the germanium doped channel region, and the same deuterium region between the germanium doped channel region and the gate insulator.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: May 21, 2013
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Xiangdong Chen, Laegu Kang, Weipeng Li, Dae-Gyu Park, Melanie J. Sherony
  • Patent number: 8441049
    Abstract: The present invention relates to a flat panel display device comprising a polysilicon thin film transistor and a method of manufacturing the same. Grain sizes of polysilicon grains formed in active channel regions of thin film transistors of a driving circuit portion and a pixel portion of the flat panel display device are different from each other. Further, the flat panel display device comprising P-type and N-type thin film transistors having different particle shapes from each other.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: May 14, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Yong Park, Jae-Bon Koo, Hye-Hyang Park, Ki-Yong Lee, Ul-Ho Lee
  • Patent number: 8415731
    Abstract: To provide a storage device in which advantages of both a nonvolatile storage device and a volatile storage device can be obtained, a semiconductor device includes a first transistor provided in or over a substrate and a second transistor provided above the first transistor, where at least part of the first transistor and the second transistor are overlapped with each other, and a gate electrode of the first transistor and a source or drain electrode of the second transistor are electrically connected to each other. It is preferable that the first transistor be provided using single crystal silicon and the second transistor be provided using an oxide semiconductor having extremely low off-state current.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: April 9, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Kiyoshi Kato
  • Patent number: 8415674
    Abstract: Methods of forming a semiconductor device include forming an insulation layer on a semiconductor structure, forming an opening in the insulation layer, the opening having a sidewall defined by one side of the insulation layer, forming a first metal layer in the opening, at least partially exposing the sidewall of the opening by performing a wet-etching process on the first metal layer, and selectively forming a second metal layer on the etched first metal layer. An average grain size of the first metal layer is smaller than an average grain size of the second metal layer. Related semiconductor devices are also disclosed.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: April 9, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tai-Soo Lim, HyunSeok Lim, Shin-Jae Kang, Kyung-Tae Jang
  • Patent number: 8410555
    Abstract: There is provided a CMOSFET device with a threshold voltage controlled by means of its gate stack configuration and a method of fabricating the same. The CMOSFET device comprises: a semiconductor substrate; am interface layer grown on the silicon substrate; a first high-k gate dielectric layer deposited on the interface layer; a very thin metal layer deposited on the first high-k gate dielectric layer; a second high-k gate dielectric layer deposited on the very thin metal layer; and a gate electrode layer deposited on the second high-k gate dielectric layer.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: April 2, 2013
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Wenwu Wang, Huilong Zhu, Shijie Chen, Dapeng Chen
  • Patent number: 8362528
    Abstract: A logic switch intentionally utilizes GIDL current as its primary mechanism of operation. Voltages may be applied to a doped gate overlying and insulated from a pn junction. A first voltage initiates GIDL current, and the logic switch is bidirectionally conductive. A second voltage terminates GIDL current, but the logic switch is unidirectionally conductive. A third voltage renders the logic switch bidirectionally non-conductive. Circuits containing the logic switch are also described. These circuits include inverters, SRAM cells, voltage reference sources, and neuron logic switches. The logic switch is primarily implemented according to SOI protocols, but embodiments according to bulk protocols are described.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: January 29, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Min-Hwa Chi
  • Publication number: 20120319201
    Abstract: In a semiconductor device, a vertical transistor comprises: a first diffusion region on a substrate; a channel region on the first diffusion region and extending in a vertical direction; a second diffusion region on the channel region; and a gate electrode at a sidewall of, and insulated from, the channel region. A horizontal transistor is positioned on the substrate, the horizontal transistor comprising: a first diffusion region and a second diffusion region on the substrate and spaced apart from each other; a channel region on the substrate between the first diffusion region and the second diffusion region; and a gate electrode on the channel region and isolated from the channel region. A portion of a gate electrode of the vertical transistor and a portion of the gate electrode of the horizontal transistor are at a same vertical position in the vertical direction relative to the substrate.
    Type: Application
    Filed: March 6, 2012
    Publication date: December 20, 2012
    Applicants: SNU R & DB FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-Chul Sun, Byung-Gook Park
  • Patent number: 8329540
    Abstract: Device isolation regions for isolating a device forming region are formed over a substrate. Subsequently, a gate insulation film is formed over the device forming region. Then, a lower gate electrode film comprised of a metal nitride film is formed over the gate insulation film. Further, a heat treatment is performed to the lower gate electrode film and then an upper gate electrode film is formed over the lower gate electrode film.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: December 11, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Takeo Matsuki
  • Patent number: 8318570
    Abstract: A device and method for improving performance of a transistor includes gate structures formed on a substrate having a spacing therebetween. The gate structures are formed in an operative relationship with active areas fainted in the substrate. A stress liner is formed on the gate structures. An angled ion implantation is applied to the stress liner such that ions are directed at vertical surfaces of the stress liner wherein portions of the stress liner in contact with the active areas are shielded from the ions due to a shadowing effect provided by a height and spacing between adjacent structures.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: November 27, 2012
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Ying Zhang
  • Publication number: 20120292713
    Abstract: A semiconductor device includes a first transistor, a second transistor, a first transistor group, and a second transistor group. The first transistor group includes a third transistor, a fourth transistor, and four terminals. The second transistor group includes fifth to eighth transistors and four terminals. The first transistor, the third transistor, the sixth transistor, and the eighth transistor are n-channel transistors, and the second transistor, the fourth transistor, the fifth transistor, and the seventh transistor are p-channel transistors.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 22, 2012
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Tatsuya OHNUKI