Class / Patent application number | Description | Number of patent applications / Date published |
257372000 | With means to prevent latchup or parasitic conduction channels | 28 |
20080203491 | RADIATION HARDENED FINFET - The embodiments of the invention provide a structure and method for a rad-hard FinFET or mesa. More specifically, a semiconductor structure is provided having at least one fin or mesa comprising a channel region on an isolation region. A doped substrate region is also provided below the fin, wherein the doped substrate region has a first polarity opposite a second polarity of the channel region. The isolation region contacts the doped substrate region. The structure further includes a gate electrode covering the channel region and at least a portion of the isolation region. The gate electrode comprises a lower portion below the channel region of the fin, wherein the lower portion of the gate electrode comprises a height that is at least one-half of a thickness of the fin. | 08-28-2008 |
20080217698 | METHODS AND SEMICONDUCTOR STRUCTURES FOR LATCH-UP SUPPRESSION USING A CONDUCTIVE REGION - Semiconductor structures and methods for suppressing latch-up in bulk CMOS devices. The semiconductor structure comprises first and second adjacent doped wells formed in the semiconductor material of a substrate. A trench, which includes a base and first sidewalls between the base and the top surface, is defined in the substrate between the first and second doped wells. The trench is partially filled with a conductor material that is electrically coupled with the first and second doped wells. Highly-doped conductive regions may be provided in the semiconductor material bordering the trench at a location adjacent to the conductive material in the trench. | 09-11-2008 |
20080265334 | SEMICONDUCTOR DEVICE CAPABLE OF AVOIDING LATCHUP BREAKDOWN RESULTING FROM NEGATIVE VARIATION OF FLOATING OFFSET VOLTAGE - A semiconductor device is provided which is capable of avoiding malfunction and latchup breakdown resulting from negative variation of high-voltage-side floating offset voltage (VS). In the upper surface of an n-type impurity region, a p | 10-30-2008 |
20080272440 | SEMICONDUCTOR DEVICE CAPABLE OF AVOIDING LATCHUP BREAKDOWN RESULTING FROM NEGATIVE VARIATION OF FLOATING OFFSET VOLTAGE - A semiconductor device is provided which is capable of avoiding malfunction and latchup breakdown resulting from negative variation of high-voltage-side floating offset voltage (VS). In the upper surface of an n-type impurity region, a p | 11-06-2008 |
20090039440 | SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME - A semiconductor device comprising: a semiconductor substrate; an n-type MIS transistor which is formed on the semiconductor substrate and has a first metal gate electrode and a first polycrystalline silicon layer formed on the first metal gate electrode; a p-type MIS transistor which is formed on the semiconductor substrate and has a second metal gate electrode and a second polycrystalline silicon layer, the second metal gate electrode containing at least one metallic element different from that of the first metal gate electrode, and the second polycrystalline silicon layer being formed on the second metal gate electrode and having the same conductivity type as that of the first polycrystalline silicon layer. | 02-12-2009 |
20090057776 | METHOD OF FORMING FULLY SILICIDED NMOS AND PMOS SEMICONDUCTOR DEVICES HAVING INDEPENDENT POLYSILICON GATE THICKNESSES, AND RELATED DEVICE - A method of forming fully silicided NMOS and PMOS semiconductor devices having independent polysilicon gate thicknesses, and related device. At least some of the illustrative embodiments are methods comprising forming an N-type gate over a semiconductor substrate (the N-type gate having a first thickness), forming a P-type gate over the semiconductor substrate (the P-type gate having a second thickness different than the first thickness), and performing a simultaneous silicidation of the N-type gate and the P-type gate. | 03-05-2009 |
20090065873 | Semiconductor device and method of fabricating metal gate of the same - Provided is a semiconductor device that comprises a metal gate having a low sheet resistance characteristic and a high diffusion barrier characteristic and a method of fabricating the metal gate of the semiconductor device. The semiconductor device includes a metal gate formed on a gate insulating film, wherein the metal gate is formed of a metal nitride that contains Al or Si and includes upper and lower portions where the content of Al or Si is relatively high and a central portion where the content of Al or Si is relatively low. | 03-12-2009 |
20090289307 | SEMICONDUCTOR DEVICE - A semiconductor device according to one embodiment includes: a semiconductor substrate having a SRAM region; an N-type element region formed in the SRAM region on the semiconductor substrate and including N-type source/drain regions; a P-type element region formed in the SRAM region on the semiconductor substrate so as to be substantially parallel to the N-type element region and including P-type source/drain regions; P-type well contact connections and N-type well contact connections formed on both sides of the N-type and P-type element regions in a longitudinal direction outside the SRAM region on the semiconductor substrate, respectively; an element isolation region for isolating the N-type element region, the P-type element region, the P-type well contact connection and the N-type well contact connection; a P-type well continuously formed under the N-type element region and the P-type well contact connection in the semiconductor substrate, and an N-type well continuously formed under the P-type element region and the N-type well contact connection in the semiconductor substrate. | 11-26-2009 |
20100032767 | STRUCTURE AND METHOD OF LATCHUP ROBUSTNESS WITH PLACEMENT OF THROUGH WAFER VIA WITHIN CMOS CIRCUITRY - A method of manufacturing a semiconductor structure includes: forming a trench in a back side of a substrate; depositing a dopant on surfaces of the trench; forming a shallow trench isolation (STI) structure in a top side of the substrate opposite the trench; forming a deep well in the substrate; out-diffusing the dopant into the deep well and the substrate; forming an N-well and a P-well in the substrate; and filling the trench with a conductive material. | 02-11-2010 |
20100044801 | DUAL METAL GATE CORNER - In view of the foregoing, disclosed herein are embodiments of an improved field effect transistor (FET) structure and a method of forming the structure. The FET structure embodiments each incorporate a unique gate structure. Specifically, this gate structure has a first section above a center portion of the FET channel region and second sections above the channel width edges (i.e., above the interfaces between the channel region and adjacent isolation regions). The first and second sections differ (i.e., they have different gate dielectric layers and/or different gate conductor layers) such that they have different effective work functions (i.e., a first and second effective work-function, respectively). The different effective work functions are selected to ensure that the threshold voltage at the channel width edges is elevated. | 02-25-2010 |
20100109090 | CMOS LATCH-UP IMMUNITY - Latch-up of CMOS devices ( | 05-06-2010 |
20110156160 | Metal Oxide Semiconductor (MOS) Type Semiconductor Device And Manufacturing Method Thereof - A semiconductor device with a metal oxide semiconductor (MOS) type transistor structure, which is used for, e.g. a static random access memory (SRAM) type memory cell, includes a part that is vulnerable to soft errors. In the semiconductor device with the MOS type transistor structure, an additional load capacitance is formed at the part that is vulnerable to soft errors. | 06-30-2011 |
20110198703 | STRUCTURE AND METHOD OF LATCHUP ROBUSTNESS WITH PLACEMENT OF THROUGH WAFER VIA WITHIN CMOS CIRCUITRY - A method of manufacturing a semiconductor structure includes: forming a trench in a back side of a substrate; depositing a dopant on surfaces of the trench; forming a shallow trench isolation (STI) structure in a top side of the substrate opposite the trench; forming a deep well in the substrate; out-diffusing the dopant into the deep well and the substrate; forming an N-well and a P-well in the substrate; and filling the trench with a conductive material. | 08-18-2011 |
20110227166 | STRUCTURE AND METHOD FOR LATCHUP IMPROVEMENT USING THROUGH WAFER VIA LATCHUP GUARD RING - A structure for preventing latchup. The structure includes a latchup sensitive structure and a through wafer via structure bounding the latch-up sensitive structure to prevent parasitic carriers from being injected into the latch-up sensitive structure. | 09-22-2011 |
20110303986 | COAXIAL TRANSISTOR STRUCTURE - The present invention discloses a coaxial transistor formed on a substrate, particularly a coaxial metal-oxide-semiconductor field-effect transistor (CMOSFET). The chips or substrates of the CMOSFETs can be stacked up and connected via through-holes to form a coaxial complementary metal-oxide-semiconductor field-effect transistor (CCMOSFET), which is both full-symmetric and full-complementarily, has a higher integration and is free of the latch-up problem. | 12-15-2011 |
20120091536 | CMOS STRUCTURE AND LATCH-UP PREVENTING METHOD OF SAME - A CMOS structure includes a PMOS portion and an NMOS portion isolated from each other via a P-well region disposed next to the PMOS portion and an N-well region disposed between the P-well region and the NMOS portion, an insulation layer overlying at least the N-well region, and a pad structure disposed over the N-well region. The pad structure further includes: a pad body disposed on the insulation layer; and at least one contact plug penetrating through the insulation layer, having one end coupled to the pad body and the other end coupled to a contact zone in the N-well region; wherein the contact zone is interfaced with the N-well region with P-type dopants. | 04-19-2012 |
20130154024 | STRUCTURE AND METHOD OF LATCHUP ROBUSTNESS WITH PLACEMENT OF THROUGH WAFER VIA WITHIN CMOS CIRCUITRY - A method of manufacturing a semiconductor structure includes: forming a trench in a back side of a substrate; depositing a dopant on surfaces of the trench; forming a shallow trench isolation (STI) structure in a top side of the substrate opposite the trench; forming a deep well in the substrate; out-diffusing the dopant into the deep well and the substrate; forming an N-well and a P-well in the substrate; and filling the trench with a conductive material. | 06-20-2013 |
20140203374 | N/P Boundary Effect Reduction for Metal Gate Transistors - The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a plurality of dummy gates over a substrate. The dummy gates extend along a first axis. The method includes forming a masking layer over the dummy gates. The masking layer defines an elongate opening extending along a second axis different from the first axis. The opening exposes first portions of the dummy gates and protects second portions of the dummy gates. A tip portion of the opening has a width greater than a width of a non-tip portion of the opening. The masking layer is formed using an optical proximity correction (OPC) process. The method includes replacing the first portions of the dummy gates with a plurality of first metal gates. The method includes replacing the second portions of the dummy gates with a plurality of second metal gates different from the first metal gates. | 07-24-2014 |
20140327084 | DUAL SHALLOW TRENCH ISOLATION (STI) FIELD EFFECT TRANSISTOR (FET) AND METHODS OF FORMING - Various embodiments include field effect transistor (FET) structures and methods of forming such structures. In various embodiments, an FET structure includes: a deep n-type well; an shallow n-type well and a p-type well each within the deep n-type well; and a shallow trench isolation (STI) region within the shallow n-type well, the STI region including: a first section having a first depth within the shallow n-type well as measured from an upper surface of the shallow n-type well; and a second section contacting and overlying the first section, the second section having a second depth within the shallow n-type well as measured from the upper surface of the shallow n-type well. | 11-06-2014 |
20140367792 | STRUCTURE AND METHOD OF LATCHUP ROBUSTNESS WITH PLACEMENT OF THROUGH WAFER VIA WITHIN CMOS CIRCUITRY - A method of manufacturing a semiconductor structure includes: forming a trench in a back side of a substrate; depositing a dopant on surfaces of the trench; forming a shallow trench isolation (STI) structure in a top side of the substrate opposite the trench; forming a deep well in the substrate; out-diffusing the dopant into the deep well and the substrate; forming an N-well and a P-well in the substrate; and filling the trench with a conductive material. | 12-18-2014 |
20150014783 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - An MV-PMOS and MV-NMOS configuring a high side drive circuit are formed in an n-type isolation region formed on a p-type semiconductor substrate. The MV-NMOS is connected to a p-type isolation region of an intermediate potential in the interior of the n-type isolation region. An n-type epitaxial region is provided in a surface layer of the p-type semiconductor substrate on the outer side of the n-type isolation region, and a p-type GND region of a ground potential (GND) is provided on the outer side of the n-type epitaxial region. A cavity is provided between the p-type semiconductor substrate and n-type epitaxial region between the high side drive circuit and p-type GND region, and a p-type diffusion region is provided penetrating the n-type epitaxial region and reaching the cavity. The intermediate potential is applied to the p-type isolation region. | 01-15-2015 |
20150340326 | SHUNT OF P GATE TO N GATE BOUNDARY RESISTANCE FOR METAL GATE TECHNOLOGIES - An integrated circuit includes a component with a metal gate NMOS transistor and a metal gate PMOS transistor in which a metal gate structure of the NMOS transistor is disposed in electrical series with, and abuts, a metal gate structure of the PMOS transistor. A gate shunt is formed over a boundary between the metal gate structure of the NMOS transistor and the metal gate structure of the PMOS transistor. The gate shunt provides a low resistance connection between the metal gate structure of the NMOS transistor and the metal gate structure of the PMOS transistor. The gate shunt is free of electrical connections to other components through interconnect elements of the integrated circuit. | 11-26-2015 |
20150364459 | N/P BOUNDARY EFFECT REDUCTION FOR METAL GATE TRANSISTORS - The present disclosure provides a semiconductor device. A first active region is formed in a substrate. The first active region is elongated in a first direction in a top view. A first gate is formed over the substrate. The first gate is elongated in a second direction in the top view. A portion of the first gate is located over the first active region. A second gate is formed over the substrate. The second gate is elongated in the second direction in the top view. A portion of the second gate is located over the first active region. The second gate is shorter than the first gate in the second direction. | 12-17-2015 |
20150364470 | SEMICONDUCTOR INTEGRATED CIRCUIT - A low side control circuit and a high side control circuit are disposed in first and second n type well regions, respectively. A third n type well region is formed around the second n type well region. The first n | 12-17-2015 |
20160013284 | METHOD FOR PRODUCING SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE | 01-14-2016 |
20160043194 | METHOD FOR PRODUCING SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE - A semiconductor device includes a third first-conductivity-type semiconductor layer on a semiconductor substrate; a first pillar-shaped semiconductor layer formed on the semiconductor substrate and including a first first-conductivity-type semiconductor layer, a first body region, a second first-conductivity-type semiconductor layer, a first second-conductivity-type semiconductor layer, a second body region, a second second-conductivity-type semiconductor layer, and a third second-conductivity-type semiconductor layer; a first gate insulating film around the first body region; a first gate around the first gate insulating film; a second gate insulating film around the second body region; a second gate around the second gate insulating film; an output terminal made of a semiconductor and connected to the second first-conductivity-type semiconductor layer and the first second-conductivity-type semiconductor layer; and a first contact that connects the first gate and the second gate. The second first-conductivity-type semiconductor layer and the first second-conductivity-type semiconductor layer are further formed in the output terminal. | 02-11-2016 |
20160111424 | Multi-Voltage Complementary Metal Oxide Semiconductor Integrated Circuits Based On Always-On N-Well Architecture - Examples of multi-voltage (MV) complementary metal oxide semiconductor (CMOS) integrated circuits (ICs) based on always-on N-well architecture are described. A MV CMOS IC may include first CMOS cells, second CMOS cells, N-wells and always-on taps. Each first CMOS cell may have a supply terminal configured to receive a local supply voltage, and an N-well (NW) terminal configured to receive a global supply voltage. The second CMOS cells may include always-on CMOS cells. Each second CMOS cell may have a supply terminal configured to receive the global supply voltage, and an NW terminal configured to receive the global supply voltage. The NW terminal of at least one of the second CMOS cells and the NW terminal of at least one of the first CMOS cells may be formed in a first N-well of the one or more N-wells. | 04-21-2016 |
20160148932 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A semiconductor device including an insulating film in a first region of a semiconductor substrate; a first impurity region and a second impurity region of a first conductivity type, each of the regions including a part located deeper than the insulating film in contact with each other, and the insulating film being sandwiched by the first and second impurity regions in planar view in the first region of the semiconductor substrate; a metal silicide film on the first impurity region and in Schottky junction with the first impurity region; a first impurity of the first impurity region having a peak of a concentration profile deeper than a bottom of the insulating film; a second impurity of the second impurity region having a concentration higher than a concentration of the first impurity in a part of the first impurity region shallower than the bottom of the insulating film. | 05-26-2016 |