With Lightly Doped Portion Of Drain Region Adjacent Channel (e.g., Ldd Structure) Patents (Class 257/336)
  • Patent number: 9608066
    Abstract: A field effect transistor device includes a gate structure formed over a channel region in a semiconductor material. An inner spacer is formed on sidewalls of the gate structure and over an extension region of the semiconductor material. The inner spacer includes charge or dipoles. A source/drain region is formed adjacent to the gate structure. An inversion layer is formed in the extension region induced by the inner spacer to form a conductive link between the channel region and the source/drain region.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 28, 2017
    Assignee: International Business Machines Corporation
    Inventors: Takashi Ando, Pouya Hashemi, Vijay Narayanan, Yanning Sun
  • Patent number: 9601585
    Abstract: A transistor includes an isolation region surrounding an active region. The transistor also includes a gate dielectric layer over a portion of the active region. The transistor further includes a gate electrode over the gate dielectric layer. The portion of the active region under the gate dielectric layer includes a channel region between a drain region and a source region, and at least one wing region adjoining the channel region. The at least one wing region has a base edge adjoining the channel region. The at least one wing region is polygonal or curved.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: March 21, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-Liang Chu, Fei-Yuh Chen, Yi-Sheng Chen, Shih-Kuang Hsiao, Chun Lin Tsai, Kong-Beng Thei
  • Patent number: 9583392
    Abstract: A system and method for manufacturing a carbon layer is provided. An embodiment comprises depositing a first metal layer on a substrate, the substrate comprising carbon. A silicide is epitiaxially grown on the substrate, the epitaxially growing the silicide also forming a layer of carbon over the silicide. In an embodiment the carbon layer is graphene, and may be transferred to a semiconductor substrate for further processing to form a channel within the graphene.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: February 28, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Mark van Dal
  • Patent number: 9583596
    Abstract: An integrated circuit containing a diode with a drift region containing a first dopant type plus scattering centers. An integrated circuit containing a DEMOS transistor with a drift region containing a first dopant type plus scattering centers. A method for designing an integrated circuit containing a DEMOS transistor with a counter doped drift region.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: February 28, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Philipp Steinmann, Amitava Chatterjee, Sameer Pendharkar
  • Patent number: 9577070
    Abstract: Methods and structures for forming devices, such as transistors, are discussed. A method embodiment includes forming a gate spacer along a sidewall of a gate stack on a substrate; passivating at least a portion of an exterior surface of the gate spacer; and epitaxially growing a material in the substrate proximate the gate spacer while the at least the portion of the exterior surface of the gate spacer remains passivated. The passivating can include using at least one of a thermal treatment, a plasma treatment, or a thermal treatment.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: February 21, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun Hsiung Tsai, Kuo-Feng Yu
  • Patent number: 9559199
    Abstract: An LDFET is disclosed. A source region is electrically coupled to a source contact. A lightly doped drain (LDD) region has a lower dopant concentration than the source region, and is separated from the source region by a channel. A highly doped drain region forms an electrically conductive path between a drain contact and the LDD region. A gate electrode is located above the channel and separated from the channel by a gate dielectric. A shield plate is located above the gate electrode and the LDD region, and is separated from the LDD region, the gate electrode, and the source contact by a dielectric layer. A control circuit applies a variable voltage to the shield plate that: (1) accumulates a top layer of the LDD region before the transistor is switched on; and (2) depletes the top layer of the LDD region before the transistor is switched off.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: January 31, 2017
    Assignee: Silanna Asia Pte Ltd
    Inventors: George Imthurn, James Ballard, Yashodhan Moghe
  • Patent number: 9553081
    Abstract: A semiconductor device and method of forming the same including, in one embodiment, a semiconductor die formed with a plurality of laterally diffused metal oxide semiconductor (“LDMOS”) cells. The semiconductor device also includes a redistribution layer electrically coupled to the plurality of LDMOS cells and a plurality of metallic pillars distributed over and electrically coupled to the redistribution layer.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: January 24, 2017
    Assignee: Enpirion, Inc.
    Inventors: Ashraf W. Lotfi, Jeffrey Demski, Anatoly Feygenson, Douglas Dean Lopata, Jay Norton, John D. Weld
  • Patent number: 9525078
    Abstract: A device includes a field effect transistor (FET) integrated with at least a portion of a bipolar junction transistor (BJT), in which a back gate of the FET shares an electrical connection with a base of the BJT, and in which a reverse voltage can be applied to the back gate of the FET.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: December 20, 2016
    Assignee: Skyworks Solutions, Inc.
    Inventors: Bin Li, Peter J. Zampardi, Jr., Andre G. Metzger
  • Patent number: 9484437
    Abstract: The present invention discloses a lateral double diffused metal oxide semiconductor (LDMOS) device and a manufacturing method thereof. The LDMOS device includes: drift region, an isolation oxide region, a first oxide region, a second oxide region, a gate, a body region, a source, and a drain. The isolation oxide region, the first oxide region, and the second oxide region have an isolation thickness, a first thickness, and a second thickness respectively, wherein the second thickness is less than the first thickness. The present invention can reduce a conduction resistance without decreasing a breakdown voltage of the LDMOS device by the first oxidation region and the second oxidation region.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: November 1, 2016
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Tsung-Yi Huang, Ching-Yao Yang, Wen-Yi Liao, Hung-Der Su, Kuo-Cheng Chang
  • Patent number: 9484436
    Abstract: An electronic semiconductor device including a semiconductor body having a first structural region and a second structural region, which extends on the first structural region and houses a drain region; a body region, which extends into the second structural region; a source region, which extends into the body region; and a gate electrode, which extends over the semiconductor body for generating a conductive channel between the source region and the drain region. The device includes a first conductive trench extending through, and electrically insulated from, the second structural region on one side of the gate electrode; and a second conductive trench extending through the source region, the body region, and right through the second structural region on an opposite side of the gate electrode, electrically insulated from the second structural region and electrically coupled to the body region and to the source region.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: November 1, 2016
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Salvatore Cascino, Leonardo Gervasi, Antonello Santangelo
  • Patent number: 9478456
    Abstract: A device includes a semiconductor substrate, a channel region in the semiconductor substrate having a first conductivity type, and a composite drift region in the semiconductor substrate, having a second conductivity type. The composite drift region includes a first drift region and a second drift region spaced from the channel region by the first drift region. The device further includes a drain region in the semiconductor substrate, spaced from the channel region by the composite drain region, and having the second conductivity type. The first drift region has a dopant concentration profile with a first concentration level where adjacent the channel region and a second concentration level where adjacent the second drift region, the first concentration level being higher than the second concentration level. In some embodiments, the first and second drift regions are stacked vertically, with the first drift region being shallower than the second drift region.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: October 25, 2016
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Hongning Yang, Jiang-Kai Zuo
  • Patent number: 9466100
    Abstract: A method for monitoring mask focus includes measuring profile asymmetries in a target feature including sub-resolution assist features and deriving a focus response based on a known correlation between the profile and focus of a corresponding mask. A computer system in a lithographic process may adjust mask focus based on such derived information to conform to a desired fabrication process.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: October 11, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: DongSub Choi, Bill Pierson, David Tien, James Manka, Dongsuk Park
  • Patent number: 9450074
    Abstract: Semiconductor devices, such as laterally diffused metal oxide semiconductor (LDMOS) devices, are described that have a field plate connected to a gate of the device. In one or more implementations, the semiconductor devices include a substrate having a source region of a first conductivity type and a drain region of the first conductivity type. A gate is positioned over the surface and between the source region and the drain region. The gate is configured to receive a voltage so that a conduction region may be formed at least partially below the gate to allow majority carriers to travel between the source region and the drain region. The device also includes a field plate at least partially positioned over and connected to the gate. The field plate is configured to shape an electrical field generated between the source region and the drain region when a voltage is applied to the gate.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 20, 2016
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Fanling Hsu Yang, Timothy K. McGuire, Sudarsan Uppili, Guillaume Bouche
  • Patent number: 9450048
    Abstract: A semiconductor device and a manufacturing method and an operating method for the same are provided. The semiconductor device comprises a substrate, a deep well, a first well, a first doped electrode region, a second doped electrode region and a high voltage threshold voltage channel region. The substrate has a first type conductivity. The deep well is formed in the substrate and has a second type conductivity opposite to the first conductivity. The first well is formed in the deep well and has at least one of the first type conductivity and the second type conductivity. The first and the second doped electrode regions are formed in the first well. The second doped electrode is adjacent to the first doped electrode and has the second conductivity. The high voltage threshold voltage channel region is formed in the first well and extending down from the surface of the substrate.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: September 20, 2016
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Ching-Lin Chan, Chen-Yuan Lin, Cheng-Chi Lin, Shih-Chin Lien
  • Patent number: 9437701
    Abstract: Integrated circuit devices with counter-doped conductive gates. The devices have a semiconductor substrate that has a substrate surface. The devices also have a first well of a first conductivity type, a source of a second conductivity type, and a drain of the second conductivity type. A channel extends between the source and the drain. A conductive gate extends across the channel. The conductive gate includes a first gate region and a second gate region of the second conductivity type and a third gate region of the first conductivity type. The third gate region extends between the first and second gate regions. The devices further include a gate dielectric that extends between the conductive gate and the substrate and also include a silicide region in electrical communication with the first, second, and third gate regions. The methods include methods of manufacturing the devices.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: September 6, 2016
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Weize Chen, Richard J. de Souza, Md M. Hoque, Patrice M. Parris
  • Patent number: 9425280
    Abstract: One method disclosed herein includes forming at least one sacrificial sidewall spacer adjacent a sacrificial gate structure that is formed above a semiconducting substrate, removing at least a portion of the sacrificial gate structure to thereby define a gate cavity that is laterally defined by the sacrificial spacer, forming a replacement gate structure in the gate cavity, removing the sacrificial spacer to thereby define a spacer cavity adjacent the replacement gate structure, and forming a low-k spacer in the spacer cavity. A novel device disclosed herein includes a gate structure positioned above a semiconducting substrate, wherein the gate insulation layer has two upstanding portions that are substantially vertically oriented relative to an upper surface of the substrate. The device further includes a low-k sidewall spacer positioned adjacent each of the vertically oriented upstanding portions of the gate insulation layer.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: August 23, 2016
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Xiuyu Cai, Ruilong Xie, Xunyuan Zhang
  • Patent number: 9356133
    Abstract: A semiconductor device includes a medium voltage MOSFET having a vertical drain drift region between RESURF trenches containing field plates which are electrically coupled to a source electrode of the MOSFET. A split gate with a central opening is disposed above the drain drift region between the RESURF trenches. A two-level LDD region is disposed below the central opening in the split gate. A contact metal stack makes contact with a source region at lateral sides of the triple contact structure, and with a body contact region and the field plates in the RESURF trenches at a bottom surface of the triple contact structure. A perimeter RESURF trench surrounds the MOSFET. A field plate in the perimeter RESURF trench is electrically coupled to the source electrode of the MOSFET. An integrated snubber may be formed in trenches formed concurrently with the RESURF trenches.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: May 31, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Christopher Boguslaw Kocon, Hideaki Kawahara, Simon John Molloy, Satoshi Suzuki, John Manning Savidge Neilson
  • Patent number: 9356145
    Abstract: The use of strained gate electrodes in integrated circuits results in a transistor having improved carrier mobility, improved drive characteristics, and reduced source drain junction leakage. The gate electrode strain can be obtained through non symmetric placement of stress inducing structures as part of the gate electrode.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 31, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Kunal R. Parekh
  • Patent number: 9343566
    Abstract: A semiconductor device including a gate insulating film; a gate electrode; a source region of a first conductivity; a drain region of the first conductivity type; a drift region of the first conductivity type formed between the channel region and the drain region; a first semiconductor region of a second conductivity type that encloses the source region, the drift region and the drain region, and includes the channel region; and a first shield wiring that encloses a portion of the source region in a plan view in conjunction with the gate electrode, the portion being not covered by the gate electrode, and is connected to the first semiconductor region, or that covers the portion and is connected to the first semiconductor region and the source region.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: May 17, 2016
    Assignee: SOCIONEXT INC.
    Inventor: Kazuhiko Takada
  • Patent number: 9343572
    Abstract: A high-voltage semiconductor device is provided. The high-voltage semiconductor device includes a substrate; an epitaxial layer and a gate structure; a first conductive type first high-voltage well region and a second conductive type high-voltage well region disposed in the epitaxial layer at opposite sides of the gate structure respectively, wherein the first conductive type is different from the second conductive type; a source region and a drain region; and a stack structure disposed between the gate structure and the drain region, wherein the stack structure includes: a blocking layer; an insulating layer disposed over the blocking layer; and a conductive layer disposed over the insulating layer and electrically connected the source region or the gate structure. A method for manufacturing the high-voltage semiconductor device is also provided.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: May 17, 2016
    Assignee: Vangaurd International Semiconductor Corporation
    Inventors: Chung-Ren Lao, Hsing-Chao Liu, Chu-Feng Chen, Wei-Chun Chou
  • Patent number: 9337290
    Abstract: An integrated circuit is provided. The integrated circuit includes a first contact disposed over a first source/drain region, a second contact disposed over a second source/drain region, a polysilicon disposed over a gate, the polysilicon interposed between the first contact and the second contact, a first polysilicon contact bridging the polysilicon and the first contact within an active region, and an output structure electrically coupled to the first polysilicon contact.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: May 10, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Lee-Chung Lu, Li-Chun Tien, Hui-Zhong Zhuang
  • Patent number: 9331145
    Abstract: A lateral double diffused MOS transistor including substrate of a first conductivity type, drift region of a second conductivity type and body region of the first conductivity type disposed in the substrate, source region of the second conductivity type disposed in the body region, drain region of the second conductivity type disposed in the drift region, isolation layer disposed in the drift region to surround sidewalls of the drain region, gate insulation layer and gate electrode sequentially stacked generally on the body region, first field plate extending from the gate electrode to overlap the drift region and to overlap a portion of the isolation layer, second field plate disposed above the isolation layer spaced apart from the first field plate, and coupling gate disposed above the isolation layer generally between the drain region and the second field plate, wherein the coupling gate is electrically connected to the second field plate.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: May 3, 2016
    Assignee: SK HYNIX INC.
    Inventor: Sung Kun Park
  • Patent number: 9325349
    Abstract: Provided is a semiconductor device configured to encode input data into a codeword including M different symbols, each of which includes Nm symbols. The semiconductor device including a first storage unit configured to store a first state value which is reset according to M and Nm; a second storage unit corresponding to any one of the M different symbols and configured to store M second state values determined through the corresponding symbol and the first state value; a third storage unit configured to store a third state value.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: April 26, 2016
    Assignee: SK hynix Inc.
    Inventors: Joon-Woo Kim, Hong-Sik Kim
  • Patent number: 9318622
    Abstract: Structures and methods of manufacturing a fin-type PIN diode array include forming a plurality of first charge-type doped silicon fins disposed in parallel on a planar substrate in a first direction, forming undoped epitaxial growths of silicon at intervals along a length of each silicon fin, where each epitaxial growth includes a depleted intrinsic region, and forming a plurality of second charge-type doped polysilicon fins disposed in parallel and disposed perpendicularly to the first direction. The polysilicon fins are formed to contact, at intervals along a length of each polysilicon fin, an uppermost surface of one of the undoped epitaxial growths of silicon, to form a PIN diode at each intersection of each of the first charge-type doped silicon fins and the second charge-type doped polysilicon fins.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 19, 2016
    Assignee: International Business Machines Corporation
    Inventors: Lyndon R. Logan, Edward J. Nowak, Robert R. Robison
  • Patent number: 9312360
    Abstract: A semiconductor device is provided that includes a pedestal of an insulating material present over at least one layer of a semiconductor material, and at least one fin structure in contact with the pedestal of the insulating material. Source and drain region structures are present on opposing sides of the at least one fin structure. At least one of the source and drain region structures includes at least two epitaxial material layers. A first epitaxial material layer is in contact with the at least one layer of semiconductor material. A second epitaxial material layer is in contact with the at least one fin structure. The first epitaxial material layer is separated from the at least one fin structure by the second epitaxial material layer. A gate structure present on the at least one fin structure.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: April 12, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kangguo Cheng, Ramachandra Divakaruni, Ali Khakifirooz, Alexander Reznicek, Soon-Cheon Seo
  • Patent number: 9287394
    Abstract: The present invention discloses a lateral double diffused metal oxide semiconductor (LDMOS) device and a manufacturing method thereof. The LDMOS device includes: drift region, an isolation oxide region, a first oxide region, a second oxide region, a gate, a body region, a source, and a drain. The isolation oxide region, the first oxide region, and the second oxide region have an isolation thickness, a first thickness, and a second thickness respectively, wherein the second thickness is less than the first thickness. The present invention can reduce a conduction resistance without decreasing a breakdown voltage of the LDMOS device by the first oxidation region and the second oxidation region.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: March 15, 2016
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Tsung-Yi Huang, Ching-Yao Yang, Wen-Yi Liao, Hung-Der Su, Kuo-Cheng Chang
  • Patent number: 9252019
    Abstract: A system and method for forming and using a liner is provided. An embodiment comprises forming an opening in an inter-layer dielectric over a substrate and forming the liner along the sidewalls of the opening. A portion of the liner is removed from a bottom of the opening, and a cleaning process may be performed through the liner. By using the liner, damage to the sidewalls of the opening from the cleaning process may be reduced or eliminated. Additionally, the liner may be used to help implantation of ions within the substrate.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: February 2, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Chi Tsai, Chia-Han Lai, Yung-Chung Chen, Mei-Yun Wang, Chii-Ming Wu, Fang-Cheng Chen, Huang-Ming Chen, Ming-Ta Lei
  • Patent number: 9245996
    Abstract: A LDMOS transistor device includes a substrate including a first insulating structure formed therein, a gate formed on the substrate and covering a portion of the first insulating structure, a drain region and a source region formed in the substrate at two respective sides of the gate, a base region encompassing the source region, and a doped layer formed under the base region. The drain region and the source region include a first conductivity type, the base region and the doped layer include a second conductivity type, and the second conductivity type is complementary to the first conductivity type. A top of the doped layer contacts a bottom of the base region. A width of the doped layer is larger than a width of the base region.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: January 26, 2016
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: An-Hung Lin, Bo-Jui Huang, Kun-Yi Chou, Hsiao-Wen Liu, Kai-Cheng Chang
  • Patent number: 9236402
    Abstract: A voltage regulator circuit includes a transistor and a capacitor. The transistor includes a gate, a source, and a drain, a first signal is inputted to one of the source and the drain, a second signal which is a clock signal is inputted to the gate, an oxide semiconductor layer is used for a channel formation layer, and an off-state current is less than or equal to 10 aA/?m. The capacitor includes a first electrode and a second electrode, the first electrode is electrically connected to the other of the source and the drain of the transistor, and a high power source voltage and a low power source voltage are alternately applied to the second electrode.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: January 12, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Kei Takahashi, Masashi Tsubuku, Kosei Noda
  • Patent number: 9236459
    Abstract: Insulated gate bipolar transistor (IGBT) electrostatic discharge (ESD) protection devices are presented. An IGBT-ESD device includes a semiconductor substrate and patterned insulation regions disposed on the semiconductor substrate defining a first active region and a second active region. A high-V N-well is formed in the first active region of the semiconductor substrate. A P-body doped region is formed in the second active region of the semiconductor substrate, wherein the high-V N-well and the P-body doped region are separated with a predetermined distance exposing the semiconductor substrate. A P+ doped drain region is disposed in the high-V N-well. A P+ diffused region and an N+ doped source region are disposed in the P-body doped region. A gate structure is disposed on the semiconductor substrate with one end adjacent to the N+ doped source region and the other end extending over the insulation region.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: January 12, 2016
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Yeh-Ning Jou, Shang-Hui Tu, Jui-Chun Chang, Chen-Wei Wu
  • Patent number: 9231054
    Abstract: An integrated circuit containing a diode with a drift region containing a first dopant type plus scattering centers. An integrated circuit containing a DEMOS transistor with a drift region containing a first dopant type plus scattering centers. A method for designing an integrated circuit containing a DEMOS transistor with a counter doped drift region.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: January 5, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Philipp Steinmann, Amitava Chatterjee, Sameer Pendharkar
  • Patent number: 9231097
    Abstract: An HVMOS transistor structure includes: a first ion well of a first conductivity type and a second ion well of a second conductivity type different from the first conductivity type formed over a substrate, wherein the first ion well and the second ion well have a junction at their interface; a gate overlying the first ion well and the second ion well; a drain region of the first conductivity type, in the first ion well, spaced apart from a first sidewall of the gate by an offset distance; and a source region of the first conductivity type in the second ion well. In addition, a method for fabricating the HVMOS transistor structure described above is also provided.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: January 5, 2016
    Assignee: MEDIATEK INC.
    Inventor: Ming-Cheng Lee
  • Patent number: 9219146
    Abstract: A high voltage PMOS replacing the lightly doped region of the drain region with a low voltage P-well adopted in the low voltage devices, so as to save a mask. In order to achieve the high breakdown voltage and the low on resistance, a thick gate oxide applied in the DMOS is inserted. The N-type well region surrounding the source region may be replaced by a low voltage N-well adopted in the low voltage device to further save a mask.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: December 22, 2015
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Ji-Hyoung Yoo, Yanjie Lian
  • Patent number: 9190326
    Abstract: An integrated circuit device and methods of manufacturing the same are disclosed. In an example, integrated circuit device includes a gate structure disposed over a substrate; a source region and a drain region disposed in the substrate, wherein the gate structure interposes the source region and the drain region; and at least one post feature embedded in the gate structure.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: November 17, 2015
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Harry Hak-Lay Chuang, Ming Zhu
  • Patent number: 9184097
    Abstract: A semiconductor device is provided and includes a substrate of a first conductivity type, a deep well of a second conductivity type, and a first high-side device. The deep well is formed on the substrate. The first high-side device is disposed within the deep well and includes an insulation layer of the second conductivity type, a well of the first conductivity type, first and second regions of the second conductivity type, and a first poly-silicon material. The insulation layer is formed on the substrate. The well is formed within the deep well. The first and second regions are formed within the well. The first poly-silicon material is disposed between the first region and the second region and on the deep well.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: November 10, 2015
    Assignee: SYSTEM GENERAL CORPORATION
    Inventors: Hsin-Chih Chiang, Han-Chung Tai
  • Patent number: 9178061
    Abstract: A method is provided for fabricating a semiconductor device. According to the method, a semiconductor layer is formed over a semiconductor-on-insulator substrate, and a gate is formed on the semiconductor layer. Source and drain extension regions and a deep drain region are formed in the semiconductor layer. A deep source region is formed in the semiconductor layer. A drain metal-semiconductor alloy contact is located on the upper portion of the deep drain region and abutting the drain extension region. A source metal-semiconductor alloy contact abuts the source extension region. The deep source region is located below and contacts a first portion of the source metal-semiconductor alloy contact. The deep source region is not located below and does not contact a second portion of the source metal-semiconductor alloy contact. The second portion of the source metal-semiconductor alloy contact is an internal body contact that directly contacts the semiconductor layer.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: November 3, 2015
    Assignee: GLOBALFOUNDRIES INC
    Inventors: Jin Cai, Steven J. Koester, Amlan Majumdar
  • Patent number: 9165656
    Abstract: A non-volatile storage system is disclosed that includes pairs (or another number) of NAND strings (or other groupings of memory cells) in the same block being connected to and sharing a common bit line. By sharing bit lines, less bit lines are needed in the storage system. Using less bit lines reduces the space needed to implement the storage system. Each NAND string will have two drain side select gates. The non-volatile storage system will have two drain side selection lines each connected to one of the two drain side select gates so that the NAND strings sharing a bit line can be individually selected. To allow proper selection of a NAND string using the select gates, the select gates will be subjected to non-volatile programming in order to set the threshold voltage of the select gates to an appropriate level.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 20, 2015
    Assignee: SanDisk Technologies Inc.
    Inventors: Mohan V. Dunga, Masaaki Higashitani
  • Patent number: 9136264
    Abstract: A MOS transistor includes a gate electrode disposed over an active region without overlapping with an isolation region, the active region including a channel region, the isolation region defining the active region, a source region and a drain region disposed in first and second portions of the active region, respectively, the first and second portions being disposed at first and second sides of the gate electrode, respectively, the first side opposing the second side, a first blocking region disposed in a third portion of the active region between a third side of the gate electrode and the isolation region and between the source and the drain region, and a second blocking region disposed in a fourth portion of the active region between a fourth side of the gate electrode and the isolation region and between the source and the drain region, the fourth side opposing the third side.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: September 15, 2015
    Assignee: SK HYNIX INC.
    Inventor: Hyun Min Song
  • Patent number: 9111746
    Abstract: A method for performing a spacer etch process is described. The method includes providing a gate structure on a substrate having a low-k spacer material conformally applied over the gate structure, and performing a spacer etch process sequence to partially remove the spacer material from the gate structure and the substrate, while retaining a sidewall spacer positioned along a sidewall of the gate structure. The spacer etch process sequence may include depositing a spacer protection layer on an exposed surface of said spacer material, and performing one or more etching processes to selectively and anisotropically remove the spacer protection layer and the spacer material to leave behind the sidewall spacer on the sidewall of the gate structure, wherein, while being partly or fully consumed by the one or more etching processes, the spacer protection layer exhibits a reduced variation in composition and/or dielectric constant.
    Type: Grant
    Filed: August 18, 2012
    Date of Patent: August 18, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Alok Ranjan, Angelique D. Raley
  • Patent number: 9099557
    Abstract: A semiconductor device includes a second conductive-type well configured over a substrate, a first conductive-type body region configured over the second conductive-type well, a gate electrode which overlaps a portion of the first conductive-type body region, and a first conductive-type channel extension region formed over the substrate and which overlaps a portion of the gate electrode.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: August 4, 2015
    Assignee: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Jae-Han Cha, Kyung-Ho Lee, Sun-Goo Kim, Hyung-Suk Choi, Ju-Ho Kim, Jin-Young Chae, In-Taek Oh
  • Patent number: 9093301
    Abstract: A semiconductor device includes a depletion mode GaN FET and an integrated driver/cascode IC. The integrated driver/cascode IC includes an enhancement mode cascoded NMOS transistor which is connected in series to a source node of the GaN FET. The integrated driver/cascode IC further includes a driver circuit which conditions a gate input signal and provides a suitable digital waveform to a gate node of the cascoded NMOS transistor. The cascoded NMOS transistor and the driver circuit are formed on a same silicon substrate.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: July 28, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sameer Pendharkar, Naveen Tipirneni
  • Patent number: 9093406
    Abstract: An organic light emitting diode display device is provided. The organic light emitting display device includes at least one capacitor, at least one transistor, and an organic light emitting element connected to the capacitor and the transistor. The transistor includes a first structure and a second structure disposed on the first structure with a first insulating layer therebetween. The capacitor includes a first electrode and a second electrode disposed on the first electrode with the insulating layer therebetween. A distance between the first electrode and the second electrode in at least a region, is less than a distance between the first structure and the second structure.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: July 28, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jungbae Kim
  • Patent number: 9087849
    Abstract: The disclosed technology generally relates to electrostatic discharge protection devices that protect circuits from transient electrical events and more particularly to low-voltage triggered silicon-controlled rectifier devices implemented using a bulk fin field-effect transistor technology. In one aspect, an electrostatic discharge protection device comprises a low-voltage triggered silicon-controlled rectifier having an embedded grounded-gate n-channel metal oxide semiconductor structure implemented as a bulk fin field-effect transistor having a plurality of fin structures. The fin structures direct current from an avalanche zone to a gate formed over the fin structure. The electrostatic discharge protection device has a higher trigger current and a lower leakage current than a similar device having a planar embedded grounded-gate n-channel metal oxide semiconductor structure because the current flow is restricted by the fin structures.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: July 21, 2015
    Assignee: IMEC VZW
    Inventors: Shih-Hung Chen, Dimitri Linten
  • Patent number: 9070786
    Abstract: A hybrid transistor is produced to have a substrate with a first (e.g., P type) well region and a second (e.g., N type) well region with an NP or PN junction therebetween. A MOS portion of the hybrid transistor has an (e.g., N type) source region in the first well region and a gate conductor overlying and insulated from the well regions. A drain or anode (D/A) portion in the second well region collects current from the source region, and includes a bipolar transistor having an (e.g., N+) emitter region, a (e.g., P type) base region and a (e.g., N type) collector region laterally separated from the junction. Different LDMOS-like or IGBT-like properties are obtained depending on whether the current is extracted from the hybrid transistor via the bipolar transistor base or emitter or both. The bipolar transistor is desirably a vertical hetero-junction transistor.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 30, 2015
    Assignee: FREESCALE SEMICONDUCTOR INC.
    Inventor: Vishal P. Trivedi
  • Patent number: 9059182
    Abstract: An arrangement is employed in a semiconductor device having a semiconductor body, the semiconductor body having a surface. The arrangement includes a surface portion on which a first metallization layer is arranged, and an alignment pattern arranged between the surface portion and the first metallization layer.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: June 16, 2015
    Assignee: Infineon Technologies AG
    Inventors: Hubert Maier, Thomas Detzel
  • Patent number: 9048118
    Abstract: Methods and systems for power semiconductor devices integrating multiple quasi-vertical transistors on a single chip. Multiple power transistors (or active regions) are paralleled, but one transistor has a lower threshold voltage. This reduces the voltage drop when the transistor is forward-biased. In an alternative embodiment, the power device with lower threshold voltage is simply connected as a depletion diode, to thereby shunt the body diodes of the active transistors, without affecting turn-on and ON-state behavior.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: June 2, 2015
    Assignee: MaxPower Semiconductor Inc.
    Inventors: Mohamed N. Darwish, Jun Zeng, Richard A. Blanchard
  • Publication number: 20150145034
    Abstract: A LDMOS structure including a semiconductor substrate, a drain region, a lightly doped drain (LDD) region, a source region and a gate structure is provided. The substrate has a trench. The drain region is formed in the semiconductor substrate under the trench. A LDD region is formed in the semiconductor substrate at a sidewall of the trench. The source region is formed in the semiconductor substrate. The gate structure is formed on a surface of the semiconductor substrate above the LDD region between the drain region and the source region. A method for manufacturing the LDMOS structure is also provided.
    Type: Application
    Filed: November 24, 2013
    Publication date: May 28, 2015
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: Chiu-Te Lee, Kuan-Yu Chen, Ming-Shun Hsu, Chih-Chung Wang, Ke-Feng Lin, Shu-Wen Lin, Shih-Teng Huang, Kun-Huang Yu
  • Patent number: 9041108
    Abstract: MOSFETs and methods for making MOSFETs with a recessed channel and abrupt junctions are disclosed. The method includes creating source and drain extensions while a dummy gate is in place. The source/drain extensions create a diffuse junction with the silicon substrate. The method continues by removing the dummy gate and etching a recess in the silicon substrate. The recess intersects at least a portion of the source and drain junction. Then a channel is formed by growing a silicon film to at least partially fill the recess. The channel has sharp junctions with the source and drains, while the unetched silicon remaining below the channel has diffuse junctions with the source and drain. Thus, a MOSFET with two junction regions, sharp and diffuse, in the same transistor can be created.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: May 26, 2015
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Pranita Kerber, Ali Khakifirooz
  • Patent number: 9041102
    Abstract: The present disclosure discloses a lateral transistor and associated method for making the same. The lateral transistor comprises a gate formed over a first portion of a thin gate dielectric layer, and a field plate formed over a thick field dielectric layer and extending atop a second portion of the thin gate dielectric layer. The field plate is electrically isolated from the gate by a gap overlying a third portion of the thin gate dielectric layer and is electrically coupled to a source region. The lateral transistor according to an embodiment of the present invention may have reduced gate-to-drain capacitance, low specific on-resistance, and improved hot carrier lifetime.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: May 26, 2015
    Assignee: Monolithic Power Systems, Inc.
    Inventor: Joel M. McGregor
  • Publication number: 20150129959
    Abstract: A semiconductor device includes a substrate comprising a WELL region, a gate electrode comprising a gate length disposed on the WELL region, and first and second drift regions which overlap with the gate electrode. The first and second draft regions may overlap with the gate electrode at an overlapping length which is a percentage of the gate length.
    Type: Application
    Filed: May 23, 2014
    Publication date: May 14, 2015
    Applicant: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Hee Hwan JI, Tae Ho KIM