Device Protection (e.g., From Overvoltage) Patents (Class 257/173)
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Patent number: 12125843Abstract: The present disclosure provides an electrostatic protection device, and relates to the technical field of semiconductors. The electrostatic discharge protection device includes a first P-type heavily-doped region, a first N-type heavily-doped region, a second N-type heavily-doped region, a second P-type heavily-doped region, and a third N-type heavily-doped region. The first P-type heavily-doped region and the first N-type heavily-doped region are located in a P well, the second P-type heavily-doped region and the third N-type heavily-doped region are located in a first N well, one part of the second N-type heavily-doped region is located in the P well, the other part of the second N-type heavily-doped region is located in first N well, and the P well and the first N well are adjacent to each other and both located in the P-type substrate.Type: GrantFiled: December 8, 2021Date of Patent: October 22, 2024Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.Inventor: Qian Xu
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Patent number: 12009357Abstract: The present disclosure provides a diode-triggered bidirectional silicon controlled rectifier and circuit. The silicon controlled rectifier includes: a P-type substrate; a first P well formed in the P-type substrate, a first P-type doped region and a first N-type doped region being formed in the first P well; a second P well formed in the P-type substrate, a third N-type doped region and a fourth P-type doped region being formed in the second P well; and an N well formed in the P-type substrate, a second P-type doped region, a second N-type doped region and a third P-type doped region being formed in the N well. The second N-type doped region is electrically connected with a positive electrode of a diode string, and the first P-type doped region and the fourth P-type doped region are electrically connected with a negative electrode of the diode string.Type: GrantFiled: October 18, 2021Date of Patent: June 11, 2024Assignee: Changxin Memory Technologies, Inc.Inventors: Pan Mao, Yingtao Zhang, Junjie Liu, Lingxin Zhu, Bin Song, Qian Xu, Tieh-Chiang Wu
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Patent number: 11894363Abstract: A semiconductor device includes: a doped well region of a first conductive type; M semiconductor components, the M semiconductor components being provided in the doped well region of the first conductive type and being arranged in the doped well region of the first conductive type in a first direction, M being a positive integer, each semiconductor component including a first doped region of a second conductive type and a doped region of a first conductive type, and the doped region of the first conductive type surrounding the first doped region of the second conductive type; and second doped regions of a second conductive type, the second doped regions of the second conductive type being provided on at least one side of the M semiconductor components in the first direction.Type: GrantFiled: July 27, 2021Date of Patent: February 6, 2024Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.Inventor: ChihCheng Liu
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Patent number: 11594530Abstract: An eighth semiconductor portion is provided between the first semiconductor portion and the third semiconductor portion. The eighth semiconductor portion is of the second conductivity type, contacting the first semiconductor portion, and having a lower second-conductivity-type impurity concentration than the second semiconductor portion.Type: GrantFiled: July 22, 2020Date of Patent: February 28, 2023Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventor: Hideaki Sai
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Patent number: 11562953Abstract: An integrated circuit includes two parallel active zones extending in a first direction, an n-type pick-up region, and a p-type pick-up region. The two parallel active zones includes a p-type active zone located in an n-type well and an n-type active zone located in a p-type well. The n-type pick-up region is located in the n-type well and configured to have a first supply voltage. The p-type pick-up region is located in the p-type well and configured to have a second supply voltage, wherein the second supply voltage is lower than the first supply voltage. The n-type pick-up region and the p-type pick-up region are separated from each other along a direction that is different from the first direction.Type: GrantFiled: October 22, 2019Date of Patent: January 24, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chung-Hui Chen, Hao-Chieh Chan
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Patent number: 11545481Abstract: An electrostatic discharge protection device includes a first well region, a second well region, a first doped region, and a first heavily doped region. The first well region and the second well region are disposed in a semiconductor substrate. The first doped region is disposed in the first well region and the second well region. The first heavily doped region is disposed in the first doped region in the first well region. The first well region and the first doped region have a first conductivity type, and the second well region and the first heavily doped region have a second conductivity type that is the opposite of the first conductivity type.Type: GrantFiled: April 2, 2019Date of Patent: January 3, 2023Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Yeh-Ning Jou, Hsien-Feng Liao, Jia-Rong Yeh
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Patent number: 11545972Abstract: An overcurrent protection circuit is provided for a switching element turned on/off based on a control voltage. The overcurrent protection circuit includes a first transistor and a second transistor. The first transistor is a PNP bipolar transistor and has an emitter connected to the control voltage. The second transistor is an NPN bipolar transistor and has a base connected to a collector of the first transistor, a collector connected to a base of the first transistor and pulled up to a predetermined pull-up voltage, and a grounded emitter. When the control voltage exceeds a predetermined first threshold voltage, the first and second transistors are turned on, the control voltage is dropped by drop of the pull-up voltage, and thus the overcurrent protection circuit starts a protection operation of turning off the switching element.Type: GrantFiled: January 30, 2020Date of Patent: January 3, 2023Assignee: OMRON CORPORATIONInventors: Hironori Nakada, Satoshi Iwai, Noriyuki Nosaka
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Patent number: 11469190Abstract: Described is an apparatus which comprises: a first transmission path for a first frequency band; a second transmission path for a second frequency band different from the first frequency band; a node common to the first and second transmission paths, the node to be coupled to an antenna; and a transmission-zero circuit coupled to the common node.Type: GrantFiled: March 15, 2016Date of Patent: October 11, 2022Assignee: Intel CorporationInventor: Sidharth Dalmia
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Patent number: 11437365Abstract: A semiconductor substrate of a first conductivity type is coated with a semiconductor layer of a second conductivity type. A buried region of the second conductivity type is formed an interface between the semiconductor substrate and the semiconductor layer. First and second wells of the first conductivity type are provided in the semiconductor layer. A second region of the second conductivity type is formed in the first well. A third region of the second conductivity type is formed in the second well. The first well, the semiconducting layer, the second well and the third region form a first lateral thyristor. The second well, the semiconductor layer, the first well and the second region form a second lateral thyristor. The buried region and semiconductor substrate form a zener diode which sets the trigger voltage for the lateral thyristors.Type: GrantFiled: March 30, 2020Date of Patent: September 6, 2022Assignee: STMicroelectronics (Tours) SASInventors: Eric Laconde, Olivier Ory
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Patent number: 11430781Abstract: In an embodiment, a semiconductor die includes a transistor device that has a cell field and an edge termination region, a source pad arranged on the cell field, a gate pad laterally arranged laterally adjacent the cell field and in the edge termination region, a shielding region laterally surrounding the cell field, the shielding region including a non-depletable doped. The polysilicon ESD protection diode is arranged laterally between the gate pad and the source pad and vertically above at least a portion of the shielding region, and includes at least two separate sections that are electrically coupled in parallel between the gate pad and the source pad. The sections are laterally spaced apart by a gap situated at a corner of the gate pad.Type: GrantFiled: January 23, 2020Date of Patent: August 30, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventor: Joachim Weyers
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Patent number: 11362203Abstract: Electrical overstress protection for electronic systems subject to electromagnetic compatibility fault conditions are provided herein. In certain implementations, a stacked thyristor protection structure with a high holding voltage includes a protection device having a trigger voltage and a holding voltage. A trigger voltage of the stacked thyristor protection structure is substantially equal to the trigger voltage of the protection device. The stacked thyristor protection structure further includes at least one resistive thyristor electrically connected to the protection device and operable to increase a holding voltage of the stacked thyristor protection structure relative to the holding voltage of the protection device. The at least one resistive thyristor comprising a PNP bipolar transistor and a NPN bipolar transistor that are cross-coupled, and a conductor connecting a collector of the PNP bipolar transistor to a collector of the NPN bipolar transistor.Type: GrantFiled: December 18, 2019Date of Patent: June 14, 2022Assignee: Analog Devices, Inc.Inventors: Javier A. Salcedo, Linfeng He
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Patent number: 11316063Abstract: According to various embodiments, there is provided a diode device including a semiconductor substrate of a first conductivity type, a first semiconductor region formed within the semiconductor substrate, an epitaxial region of the first conductivity type, and a second semiconductor region of a second conductivity type different from the first conductivity type. The first semiconductor region includes a chalcogen. The epitaxial region is formed over the first semiconductor region. The second semiconductor region is formed over the epitaxial region.Type: GrantFiled: March 13, 2020Date of Patent: April 26, 2022Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Sandipta Roy, Khee Yong Lim, Lanxiang Wang, Kiok Boone Elgin Quek, Jing Hua Michelle Tng
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Patent number: 11296072Abstract: A semiconductor substrate includes a doped region having an upper surface. The doped region may comprise a conduction terminal of a diode (such as cathode) or a transistor (such as a drain). A silicide layer is provided at the doped region. The silicide layer has an area that only partially covers an area of the upper surface of the doped region. The partial area coverage facilitates modulating the threshold voltage and/or leakage current of an integrated circuit device.Type: GrantFiled: June 27, 2019Date of Patent: April 5, 2022Assignee: STMicroelectronics SAInventors: Thomas Bedecarrats, Louise De Conti, Philippe Galy
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Patent number: 11296071Abstract: A device of protection against electrostatic discharges is formed in a semiconductor substrate of a first conductivity type that is coated with a semiconductor layer of a second conductivity type. A buried region of the second conductivity type is positioned at an interface between the semiconductor substrate and the semiconductor layer. First and second wells of the first conductivity type are formed in the semiconductor layer and a region of the second conductivity type is formed in the second well. A stop channel region of the second conductivity type is provided in the semiconductor layer to laterally separating the first well from the second well, where no contact is present between this stop channel region and either of the first and second wells.Type: GrantFiled: March 30, 2020Date of Patent: April 5, 2022Assignee: STMicroelectronics (Tours) SASInventors: Eric Laconde, Olivier Ory
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Patent number: 11233394Abstract: An electrostatic protection circuit that is electrically connected to a first terminal to which a first voltage signal is input, a second terminal to which a second voltage signal is input, and a connection terminal that is connected to an external circuit, and mitigates the influence of a surge voltage on an internal circuit, the electrostatic protection circuit including: a first protection circuit that is electrically connected to the first terminal and the second terminal; and a second protection circuit that is electrically connected to the first terminal and the connection terminal, and the second protection circuit including: a first diode element whose anode is electrically connected to the connection terminal, and whose cathode is electrically connected to the first terminal, a thyristor element whose cathode is electrically connected to the connection terminal, a voltage limiting element that is electrically connected to an anode of the thyristor element, and a trigger element that is electrically cType: GrantFiled: July 29, 2020Date of Patent: January 25, 2022Inventor: Masuhide Ikeda
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Patent number: 11233045Abstract: A transient voltage suppression device includes a substrate; a first conductivity type well region disposed in the substrate and comprising a first well and a second well; a third well disposed on the substrate, a bottom part of the third well extending to the substrate; a fourth well disposed in the first well; a first doped region disposed in the second well; a second doped region disposed in the third well; a third doped region disposed in the fourth well; a fourth doped region disposed in the fourth well; a fifth doped region extending from inside of the fourth well to the outside of the fourth well, a portion located outside the fourth well being located in the first well; a sixth doped region disposed in the first well; a seventh doped region disposed below the fifth doped region and in the first well.Type: GrantFiled: September 4, 2019Date of Patent: January 25, 2022Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.Inventors: Shikang Cheng, Yan Gu, Sen Zhang
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Patent number: 11221253Abstract: A semiconductor device may include a plurality of single-photon avalanche diodes (SPADs). The semiconductor device may include sensing single-photon avalanche diodes that are sensitive to incident light and dark single-photon avalanche diodes that are shielded from incident light. The dark single-photon avalanche diodes may be used to measure one or more parameters for the semiconductor device such as breakdown voltage, dark count rate, and quench resistance. Processing circuitry may optimize a bias voltage for the semiconductor device based on information regarding one or more sensor parameters obtained using the dark single-photon avalanche diodes.Type: GrantFiled: December 7, 2020Date of Patent: January 11, 2022Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Jan Ledvina, Ivan Koudar, Dariusz Piotr Palubiak
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Patent number: 11222888Abstract: An anti-static metal oxide semiconductor field effect transistor structure includes an anti-static body structure and a slave metal oxide semiconductor field effect transistor, the anti-static body structure includes: a main metal oxide semiconductor field effect transistor; a first silicon controlled rectifier, an anode thereof being connected to a drain of the main metal oxide semiconductor field effect transistor, a cathode and a control electrode thereof being connected to a source of the main metal oxide semiconductor field effect transistor; and a second silicon controlled rectifier, an anode thereof being connected to the drain of the main metal oxide semiconductor field effect transistor, a cathode thereof being connected to a gate of the main metal oxide semiconductor field effect transistor, a control electrode thereof being connected to the source or the gate of the main metal oxide semiconductor field effect transistor.Type: GrantFiled: March 5, 2019Date of Patent: January 11, 2022Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.Inventor: Jun Sun
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Patent number: 11152352Abstract: A dual mode snap back circuit device is disclosed. The dual mode snap back device may be used for electrostatic discharge (ESD) protection, and may provide both positive ESD protection and negative ESD protection. The dual mode snap back device may implement both an n-type metal-oxide-semiconductor (NMOS) transistor (e.g., a gate-grounded NMOS transistor, such as a gate-grounded extended drain NMOS (GGEDNMOS) transistor) to provide protection against positive ESD events and a bipolar junction transistor (BJT) (e.g., a PNP BJT) to provide protection against negative ESD events. Other embodiments may be described and claimed.Type: GrantFiled: March 28, 2019Date of Patent: October 19, 2021Assignee: Intel CorporationInventors: Akm Ahsan, Mark Armstrong, Guannan Liu
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Patent number: 11139287Abstract: A transient voltage suppression (TVS) device including a TVS diode having a first electrode and a second electrode, an insulating plate disposed on the first electrode, a first terminal lead connected to the insulating plate, a second terminal lead connected to the second electrode, and an thermal cutoff element connecting the first terminal lead to the first electrode, the thermal cutoff element configured to melt and break an electrical connection between the first terminal lead and the first electrode when a temperature of the TVS diode exceeds a predetermined safety temperature.Type: GrantFiled: May 23, 2016Date of Patent: October 5, 2021Assignee: Littefluse Semiconductor (WUXI) Co., Ltd.Inventors: Chuanfang Chin, Kueir-Liang Lu, Lei Shi, Tsungwen Mou
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Patent number: 11127733Abstract: An ESD protection device may include: a first vertically integrated ESD protection structure comprising a first semiconductor portion, a first contact region disposed on a first side of the first semiconductor portion and a first terminal exposed on a second side of the first semiconductor portion opposite the first side of the first semiconductor portion, a second vertically integrated ESD protection structure comprising a second semiconductor portion, a second contact region disposed on a first side of the second semiconductor portion and a second terminal exposed on a second side of the second semiconductor portion opposite the first side of the second semiconductor portion, an electrical connection layer, wherein the first vertically integrated ESD protection structure and the second vertically integrated ESD protection structure are disposed on the electrical connection layer laterally separated from each other and are electrically connected with each other anti-serially via the electrical connection layType: GrantFiled: February 6, 2020Date of Patent: September 21, 2021Assignee: Infineon Technologies AGInventors: Andre Schmenn, Stefan Pompl, Damian Sojka, Katharina Umminger
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Patent number: 11121126Abstract: An embodiment of a silicon controlled rectifier (SCR) includes a semiconductor body, an active device region, and a device isolation region configured to electrically insulate the active device region from neighboring active device regions. First SCR regions and a second SCR region of a first conductivity type are in the active device region. A first pn-junction or Schottky junction is formed at an interface between the first SCR regions and the second SCR region. A first plurality of the first SCR regions and sub-regions of the second SCR region are alternately arranged and directly adjoin one another. A second pn-junction is formed at an interface between the second SCR region and a third SCR region of a second conductivity type. A third pn-junction is formed at an interface between the third SCR region and a fourth SCR region of the first conductivity type.Type: GrantFiled: January 29, 2020Date of Patent: September 14, 2021Assignee: Infineon Technologies AGInventors: Christian Cornelius Russ, Markus Eckinger, Kai Esmark
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Patent number: 11114993Abstract: A high frequency multilayer filter may include a plurality of dielectric layers and a signal path having an input and an output. The multilayer filter may include an inductor including a conductive layer formed over a first dielectric layer. The inductor may be electrically connected at a first location with the signal path and electrically connected at a second location with at least one of the signal path or a ground. The multilayer filter may include a capacitor including a first electrode and a second electrode that is separated from the first electrode by a second dielectric layer. The multilayer filter has a characteristic frequency that is greater than about 6 GHz.Type: GrantFiled: December 18, 2019Date of Patent: September 7, 2021Assignee: AVX CorporationInventors: Kwang Choi, Marianne Berolini
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Patent number: 11107883Abstract: Isolator structures for an integrated circuit with reduced effective parasitic capacitance. Disclosed embodiments include an isolator structure with parallel conductive elements forming a capacitor or inductive transformer, overlying a semiconductor structure including a well region of a first conductivity type formed within an tank region of a second conductivity type. The tank region is surrounded by doped regions and a buried doped layer of the first conductivity type, forming a plurality of diodes in series to the substrate. The junction capacitances of the series diodes have the effect of reducing the parasitic capacitance apparent at the isolator.Type: GrantFiled: December 21, 2018Date of Patent: August 31, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Raja Selvaraj, Anant Shankar Kamath, Byron Lovell Williams, Thomas D. Bonifield, John Kenneth Arch
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Electrostatic discharge device and split multi rail network with symmetrical layout design technique
Patent number: 11088134Abstract: A symmetrical layout technique for an electrostatic discharge ESD device and a corresponding power supply network is presented. The ESD device protects an electronic circuit against an overvoltage or overcurrent and contains a first contact area to establish an electrical contact with a first supply rail, a second contact area to establish an electrical contact with a second supply rail, and a third contact area to establish an electrical contact with a third supply rail. The first and third supply rails provide a first supply voltage, and the second supply rail provides a second supply voltage. Within the ESD device, an axis of symmetry passes through the second contact area, and the first contact area and the third contact area are arranged on opposite sides with regard to the axis of symmetry. The symmetrical layout technique allows flipping the orientation of the ESD device with regard to the supply rails.Type: GrantFiled: November 7, 2016Date of Patent: August 10, 2021Assignee: Dialog Semiconductor (UK) LimitedInventor: Marcus Peitz -
Patent number: 11049853Abstract: An electronic device includes a silicon-on-insulator (SOI) structure, and an electrostatic discharge (ESD) protection device, with an isolation layer having a thickness and extending in a trench from a first implanted region. The ESD protection device includes a conductive field plate that extends over a portion of the first implanted region and past the first implanted region and over a portion of the isolation layer by an overlap distance that is 3.5 to 5.0 times the thickness of the isolation layer. In one example, the ESD protection device has a finger or racetrack shape, and the first implanted region and a second implanted region extend around first and second turn portions of the finger shape.Type: GrantFiled: October 4, 2019Date of Patent: June 29, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Christopher Boguslaw Kocon
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Patent number: 11011304Abstract: A multilayer electronic component includes: a multilayer stack including a plurality of dielectric layers and a plurality of conductor layers stacked together; a plurality of terminals integrated with the multilayer stack; and a shield formed of a conductor and integrated with the multilayer stack. The multilayer stack has a top surface, a bottom surface, and four side surfaces connecting the top surface and the bottom surface. The plurality of terminals are provided on the bottom surface of the multilayer stack. The shield entirely covers the top surface and the four side surfaces of the multilayer stack. The shield includes a portion that is thicker than the other portions of the shield.Type: GrantFiled: July 30, 2020Date of Patent: May 18, 2021Assignee: TDK CORPORATIONInventors: Shohei Kusumoto, Noriaki Ootsuka, Minoru Abe, Yoshinori Sato
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Patent number: 10998308Abstract: A semiconductor device has a protected node and a reference node, and a bi-directional ESD structure electrically coupled between the protected node and the reference node. The bi-directional ESD structure includes a main transistor electrically coupled between the protected node and the reference node, an upper control transistor with current nodes electrically coupled between the protected node and a control node of the main transistor, and a lower control transistor with current nodes electrically coupled between the reference node and a control node of the main transistor. The bi-directional ESD structure also includes an upper trigger network configured to provide a transient on-state signal to the upper control transistor from a positive electrical pulse on the protected node. The bi-directional ESD structure further includes a lower trigger network configured to provide a transient on-state signal to the lower control transistor from a negative electrical pulse on the protected node.Type: GrantFiled: July 22, 2019Date of Patent: May 4, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Xianzhi Dai, Muhammad Yusuf Ali
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Patent number: 10978869Abstract: A MOSFET and an electrostatic discharge (ESD) protection device on a common chip includes a MOSFET with a source, a gate, and a drain, and an ESD protection device configured to implement a diode function that is biased to prevent current from flowing through the common chip from the source to the drain.Type: GrantFiled: August 23, 2016Date of Patent: April 13, 2021Assignee: Alpha and Omega Semiconductor IncorporatedInventor: Shekar Mallikarjunaswamy
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Patent number: 10916538Abstract: The present technology relates to a semiconductor device and a manufacturing method therefor, a solid-state imaging element and electronic equipment that make it possible to suppress breakdown of a side wall insulating film by charge damage to suppress short-circuiting. The semiconductor device according to an aspect of the present technology includes a first semiconductor substrate on which a given circuit is formed, a second semiconductor substrate, and through electrodes that electrically connect the first semiconductor substrate and the second semiconductor substrate to each other. The through electrode is formed such that a through-hole is opened through a protection diode structure formed in the first semiconductor substrate, an insulating film is deposited on a side wall of the through-hole, and an electrode material is then filled inside the through-hole in which the insulating film is deposited. The present technology can be applied, for example, to a CMOS image sensor.Type: GrantFiled: January 10, 2018Date of Patent: February 9, 2021Assignee: Sony Semiconductor Solutions CorporationInventor: Hiroshi Takahashi
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Patent number: 10897246Abstract: RF switching circuitry includes a plurality of FETs coupled between an input node, an output node, and a gate drive node. When a positive power supply voltage is provided at the gate drive node, the plurality of FETs turn on and provide a low impedance path between the input node and the output node. When a negative power supply voltage is provided at the gate drive node, the plurality of FETs turn off and provide a high impedance path between the input node and the output node. Switch acceleration circuitry in the RF switching circuitry includes a bypass FET and multi-level driver circuitry. The bypass FET selectively bypasses the common resistor in response to a multi-level drive signal. The multi-level driver circuitry uses a built-in gate to capacitance of the bypass FET to provide the multi-level drive signal at an overvoltage that is above the positive power supply voltage.Type: GrantFiled: November 10, 2017Date of Patent: January 19, 2021Assignee: Qorvo US, Inc.Inventors: Baker Scott, George Maxim, Padmmasini Desikan, Dirk Robert Walter Leipold
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Patent number: 10854710Abstract: A semiconductor device includes a first transistor formed on a substrate and including first and second impurity regions, a second transistor formed on the substrate and including a third impurity region electrically connected to the second impurity region, and a fourth impurity region, a power supply terminal electrically connected to the first impurity region, a ground terminal electrically connected to the fourth impurity region, a first guard ring surrounding the first transistor in a plan view and electrically connected to the ground terminal, and a second guard ring surrounding the second transistor in a plan view and electrically connected to the ground terminal. A conductivity type of the first through fourth impurity regions is different from a conductivity type of the first and second guard rings. The second guard ring has a width narrower than a width of the first guard ring in a plan view.Type: GrantFiled: September 6, 2019Date of Patent: December 1, 2020Assignee: SOCIONEXT, INC.Inventor: Hidetoshi Tanaka
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Patent number: 10833068Abstract: The present disclosure provides a semiconductor device that prevents a resistor component connected in series with a base electrode from the electrostatic damage.Type: GrantFiled: March 19, 2019Date of Patent: November 10, 2020Assignee: ROHM CO., LTD.Inventors: Akihiko Tsubaki, Kanako Deguchi
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Patent number: 10819320Abstract: An arrangement (100) is disclosed, comprising an electrical pulse generating module (10) configured to generate at least one electrical pulse, and a transformer (20) electrically connected to the electrical pulse generating module (10). The electrical pulse generating module (10) comprises an electrical energy storage module (40) that can be charged or discharged, and a switch unit (50) controllably switchable between at least a conducting state and a non-conducting state. When the switch unit (50) is switched into the non-conducting state, a power supply (30) charges the electrical energy storage module (40) by way of a charging current. When the switch unit (50) is switched into the conducting state, the electrical energy storage module (40) is discharged to create an electrical pulse to be received by the transformer (20).Type: GrantFiled: December 19, 2017Date of Patent: October 27, 2020Assignee: ScandiNova Systems ABInventor: Klas Elmquist
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Patent number: 10804220Abstract: In some embodiments, a bipolar junction transistor (BJT) is provided. The BJT may include a collector region that is disposed within a semiconductor substrate. A base region that is disposed within the semiconductor substrate and arranged within the collector region. An emitter region that is disposed within the semiconductor substrate and arranged within the base region. A pre-metal dielectric layer that is disposed over an upper surface of the semiconductor substrate and that separates the upper surface of the semiconductor substrate from a lowermost metal interconnect layer. A first plurality of dishing prevention columns that are arranged over the emitter region and within the pre-metal dielectric layer, where the plurality of dishing prevention columns each include a dummy gate that is conductive and electrically floating.Type: GrantFiled: September 30, 2019Date of Patent: October 13, 2020Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Yi-Huan Chen, Chien-Chih Chou, Kong-Beng Thei, Meng-Han Lin
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Patent number: 10784551Abstract: A band-pass filter includes a main body, five resonators, a shield, and a partition. The main body is formed of a dielectric. The partition is formed of a conductor. The five resonators are configured so that capacitive coupling is established between every two of the resonators adjacent to each other in circuit configuration. Each of the five resonators includes a resonator conductor portion. A first stage resonator and a fifth stage resonator are magnetically coupled to each other although not adjacent to each other in circuit configuration. The partition extends to pass between the respective resonator conductor portions of the first stage resonator and the fifth stage resonator, and is electrically connected to the shield.Type: GrantFiled: November 2, 2018Date of Patent: September 22, 2020Assignee: TDK CORPORATIONInventors: Yuta Ashida, Noriyuki Hirabayashi, Shigemitsu Tomaki
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Patent number: 10727327Abstract: Fabrication methods and device structures for a silicon controlled rectifier. A cathode is arranged over a top surface of a substrate and a well is arranged beneath the top surface of the substrate. The cathode is composed of a semiconductor material having a first conductivity type, and the well also has the first conductivity type. A semiconductor layer, which has a second conductivity type opposite to the first conductivity type, includes a section over the top surface of the substrate. The section of the semiconductor layer is arranged to form an anode that adjoins the well along a junction.Type: GrantFiled: January 29, 2018Date of Patent: July 28, 2020Assignee: GLOBALFOUNDRIES INC.Inventors: Rahul Mishra, Vibhor Jain, Ajay Raman, Robert J. Gauthier
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Patent number: 10720422Abstract: A bidirectional transient voltage suppressor is constructed as an NPN bipolar transistor incorporating optimized collector-base junction realizing avalanche mode breakdown. In some embodiments, the bidirectional transient voltage suppressor is constructed as an NPN bipolar transistor incorporating individually optimized collector-base and emitter-base junctions with the optimized junctions being spatially distributed. The optimized collector-base and emitter-base junctions both realize avalanche mode breakdown to improve the breakdown voltage of the transistor. Alternately, a unidirectional transient voltage suppressor is constructed as an NPN bipolar transistor with a PN junction diode connected in parallel in the reverse bias direction to the protected node and incorporating individually optimized collector-base junction of the bipolar transistor and p-n junction of the diode.Type: GrantFiled: January 4, 2019Date of Patent: July 21, 2020Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.Inventor: Shekar Mallikarjunaswamy
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Patent number: 10700057Abstract: The disclosed embodiments include an ESD robust transistor with a compound-SCR protection. The transistor may include a semiconductor substrate having a first conductivity type, a drain region coupled with the semiconductor substrate having a drain SCR component with a first drain region of the first conductivity type and a second drain region of the second conductivity type. The transistor may also include a source coupled with the semiconductor substrate, a channel region of the second conductivity type, and a gate coupled with the channel region having SCR components with a first gate region of the first conductivity type and a second gate region of the second conductivity type. The drain SCR components and the gate SCR components may create a low resistance discharge path along the channel region that activates in response to the ESD such that the ESD discharges through the transistor without causing damage to the transistor.Type: GrantFiled: January 11, 2019Date of Patent: June 30, 2020Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Arash Elhami Khorasani, Mark Griswold
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Patent number: 10685954Abstract: A silicon controlled rectifier includes a P-type substrate, an N-type doped well, a first P-type strip-shaped heavily-doped area arranged in the N-type doped well, a first N-type strip-shaped heavily-doped area arranged in the P-type substrate, and at least one N-type heavily-doped area arranged in the P-type substrate and the N-type doped well. The at least one N-type heavily-doped area is not arranged between the first P-type strip-shaped heavily-doped area and the first N-type strip-shaped heavily-doped area, thus the surface area of a semiconductor substrate can be reduced. The conductivity types of the abovementioned components are alternatively changed.Type: GrantFiled: November 28, 2018Date of Patent: June 16, 2020Assignee: Amazing Microelectronic Corp.Inventors: Yu-Shu Shen, Pin-Hui Lee
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Patent number: 10665584Abstract: A well-less Transient Voltage Suppressor (TVS) Silicon-Controlled Rectifier (SCR) has a P+ anode region that is not in an N-well. The P+ anode region 20 is surrounded by N+ isolation regions near the surface, and a deep N+ region underneath that is formed in a p-substrate. A N+ cathode region is formed in the p-substrate. The deep N+ region has a doping of 5×1018 to 5×1019/cm3, compared to a doping of 1×1016/cm3 for a typical N-well, or a doping of 1×1013 to 1×1015/cm3 for the p-substrate. The high doping in the deep N+ region causes a recombination current that can shunt half of the anode current. Since the deep N+ region is much shallower than an N-well, the sidewall capacitance is greatly reduced, allowing for higher speed applications.Type: GrantFiled: March 7, 2019Date of Patent: May 26, 2020Assignee: Hong Kong Applied Science and Technology Research Insstitute Company, LimitedInventors: Chenyue Ma, Chun-Kit Yam, Xiao Huo
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Patent number: 10573712Abstract: The present disclosure relates to a super-junction structure, a method for manufacturing the super-junction structure and a semiconductor device including the super-junction structure. The super-junction structure includes an epitaxy layer of a first doping type and a plurality of first pillar regions of a second doping type which are formed in the epitaxy layer and are separated from each other. Each of the first pillar regions has a doping concentration that decreases from bottom to top. A portion of the epitaxy layer between adjacent ones of the first pillar regions is a second pillar region. The first pillar regions and the second pillar region are arranged alternatively to form the super-junction structure. The first pillar regions are characterized by the doping concentration that decreases from bottom to top so that the super-junction structure has a relatively high breakdown voltage and a relatively low on resistance.Type: GrantFiled: January 17, 2018Date of Patent: February 25, 2020Assignee: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) LTD.Inventors: He Sun, Zhongping Liao
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Patent number: 10573637Abstract: Various aspects of the disclosure are directed to circuitry that may be used to shunt current. As may be consistent with one or more embodiments a first circuit has a plurality of alternating p-type and n-type semiconductor regions with respective p-n junctions therebetween, arranged between an anode end and a cathode end. A second (e.g., bypass) circuit is connected to one of the alternating p-type and n-type semiconductor regions, and forms a further p-n junction therewith. The second circuit operates to provide carrier flow, which influences operation of the first circuit.Type: GrantFiled: November 21, 2016Date of Patent: February 25, 2020Assignee: Nexperia B.V.Inventors: Steffen Holland, Hans-Martin Ritter
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Patent number: 10546813Abstract: A method of forming an electrical device that includes forming a first level including an array of metal lines, wherein an air gap is positioned between the adjacent metal lines. A second level is formed including at least one dielectric layer atop the first level. A plurality of trench structures is formed in the at least on dielectric layer. At least one of the plurality of trench structures opens the air gap. A conductive material is formed within the trenches. The conductive material deposited in the open air gap provides a vertical fuse.Type: GrantFiled: April 18, 2018Date of Patent: January 28, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Marc A. Bergendahl, James J. Demarest, Christopher J. Penny, Christopher J. Waskiewicz
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Patent number: 10497696Abstract: An electrostatic discharge (ESD) protection device includes a first bi-directional silicon controlled rectifier having a doped well of a first conductivity type, a buried doped layer having a second conductivity type opposite the first conductivity type, first and second highly doped regions of the second conductivity type in the doped well, and a third highly doped region of the first conductivity type in the doped well. The first, second and third highly doped regions are connected to a first node. A first transistor in the doped well includes an emitter coupled to the first highly doped region, a collector coupled to a conductive line in the buried doped layer, and a base coupled to the third highly doped region. A second transistor in the doped well includes an emitter coupled to the second highly doped region, a collector coupled to the conductive line in the buried doped layer, and a base coupled to the third highly doped region.Type: GrantFiled: July 18, 2018Date of Patent: December 3, 2019Assignee: NXP USA, Inc.Inventors: Rouying Zhan, Patrice Besse, Alain Salles
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Patent number: 10475849Abstract: A device including a plurality of interconnected concentric coplanar diodes.Type: GrantFiled: October 12, 2018Date of Patent: November 12, 2019Assignee: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Hubert Bono, Jonathan Garcia
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Patent number: 10453793Abstract: A method of forming an electrical device that includes forming a first level including an array of metal lines, wherein an air gap is positioned between the adjacent metal lines. A second level is formed including at least one dielectric layer atop the first level. A plurality of trench structures is formed in the at least on dielectric layer. At least one of the plurality of trench structures opens the air gap. A conductive material is formed within the trenches. The conductive material deposited in the open air gap provides a vertical fuse.Type: GrantFiled: August 2, 2018Date of Patent: October 22, 2019Assignee: International Business Machines CorporationInventors: Marc A. Bergendahl, James J. Demarest, Christopher J. Penny, Christopher J. Waskiewicz
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Patent number: 10453836Abstract: A method of forming a LDMOS with a self-aligned P+ implant and LVPW region at the source side and the resulting device are provided. Embodiments include forming a DNWELL in a p-sub; forming a PWHV in the DNWELL; forming an NW in the DNWELL; forming a LVPW in the PWHV; forming STI structures through the LVPW and through the DNWELL and NW, respectively; forming a gate over the PWHV; forming a first and a second P+ implant in the LVPW, an edge of the second P+ implant aligned with an edge of the gate; forming a first N+ implant in the LVPW between the first STI structure and the second P+ implant and a second N+ in the NW adjacent to the second STI structure; and forming contacts over the first and second P+ and N+ implants, respectively, and an electrical contact over the second N+ implant.Type: GrantFiled: August 17, 2017Date of Patent: October 22, 2019Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Yohann Frederic Michel Solaro, Vvss Satyasuresh Choppalli, Chai Ean Gill
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Patent number: 10447033Abstract: An electrostatic discharge (ESD) protection device with a high holding voltage is disclosed including at least an ESD clamp coupled to a holding voltage tuning circuit. The ESD clamp may be coupled to the holding voltage tuning circuit through a connection circuit such as a diode. The ESD clamp may be implemented by a first silicon controlled rectifier (SCR) and the holding voltage tuning circuit may be implemented as a second SCR.Type: GrantFiled: January 24, 2018Date of Patent: October 15, 2019Assignee: SOFICS BVBAInventor: Sven Van Wijmeersch
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Patent number: 10418806Abstract: A safety protection circuit is described, comprising a fuse, a first voltage detection circuit, a first Silicon-Controlled Rectifier, SCR, wherein the first SCR is triggered upon detection of a threshold voltage by the first voltage detection circuit, a second voltage detection circuit, and a second SCR, wherein the second SCR is triggered upon detection of a threshold voltage by the second voltage detection circuit.Type: GrantFiled: March 10, 2015Date of Patent: September 17, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Juan Luis Lopez Rodriguez, David Soriano Fosas, Marc Soler Jauma