Abstract: A memory device is disclosed, comprising a 4T-SRAM cell and a sensing circuit. The 4T-SRAM cell comprising two P-type MOSFET devices for a data bit storage and two N-type MOSFET devices for accessing switches has benefits of less numbers of MOSFET devices for smaller cell size and low leakage current. The sensing circuit comprises a switch device, a latch and a discharge device. The switch device coupled between the sensing latch and the ground voltage rail is designed to reduce the read disturbance to 4T SRAM cell from the sensing circuit by cutting the channel leakage current paths of NMOSFET transistors in the latch to the ground voltage rail. The differential voltage signals for the reading digital data stored in 4T SRAM cells are enhanced by increasing the sensing period. The read margins for 4T SRAM are then greatly improved leading to excellent reliable reading.

Abstract: A method for preparing an environmental-friendly rubber oil, including: conducting extraction in an extraction tower, where a primary extraction solvent is introduced into an upper section of the extraction tower, a raw oil is introduced into a middle-lower section of the extraction tower, and a secondary extraction solvent is introduced into a lower section of the extraction tower; subjecting a material at a bottom of the extraction tower to solvent recovery to obtain a secondary extract oil; mixing a substance flowing out from a top of the extraction tower, a solubilizer and a part of the primary extraction solvent, cooling to ?15° C. to 10° C., and filtering to obtain a wax paste and a filtrate; subjecting the wax paste to heating evaporation and solvent recovery to obtain a wax; and subjecting the filtrate to heating evaporation and solvent recovery, obtaining the environmental-friendly rubber oil.

Abstract: A method for dewaxing of an extract oil and a rubber oil is provided, where a composite solvent including a polar solvent and a solubilizer is used as a dewaxing solvent, the polar solvent is N-methylpyrrolidone (NMP), and the solubilizer is at least one selected from the group consisting of benzene, toluene, and xylene. The method includes: mixing the composite solvent with the extract oil or the rubber oil at a temperature higher than a precipitation temperature of a wax, subjecting a resulting mixture to cooling crystallization and filtration to obtain a wax paste and a filtrate, and then independently subjecting the wax paste and the filtrate to solvent recovery by heating evaporation to obtain a wax and a dewaxed oil, respectively.

Abstract: Systems and methods for effecting a temperature dependent refresh read rate of a read operation of a block or sub-block of memory cells in a NAND string. The method includes initiating a refresh read cycle, determining a current temperature of the non-volatile memory device, and determining a refresh read rate corresponding to the current temperature. The refresh read is performed. The method further includes implementing a delay of a defined time period after the refresh read is performed, wherein the defined time period is based on the determined refresh read rate. If a new command is received before the delay has ended then the new command is performed, and if the delay has ended without a new command having been received then the method returns to the step of determining the current temperature.

Abstract: Systems and methods for effecting a temperature dependent refresh read rate of a read operation of a block or sub-block of memory cells in a NAND string. The method includes initiating a refresh read cycle, determining a current temperature of the non-volatile memory device, and determining a refresh read rate corresponding to the current temperature. The refresh read is performed. The method further includes implementing a delay of a defined time period after the refresh read is performed, wherein the defined time period is based on the determined refresh read rate. If a new command is received before the delay has ended then the new command is performed, and if the delay has ended without a new command having been received then the method returns to the step of determining the current temperature.

Abstract: A variable capacity compressor is provided, including: two cylinders and a middle plate; at least one flow channel provided in the middle plate, wherein one end of the flow channel is connected to an exhaust chamber of any one of the two cylinders, the other end is connected to a suction chamber of the other one of the two cylinders. In present disclosure, by setting a flow channel in the middle plate of the variable capacity compressor, the exhaust chamber of one cylinder is connected to the suction chamber of the other cylinder. When the flow channel is completely closed, the two cylinders operate independently; when the flow channel is opened, the refrigerant in the exhaust chamber flows into the suction chamber through the flow channel, that is, the upper cylinders and the lower cylinder are connected to each other, which can adjust the capacity of the compressor.

Abstract: A dual-cylinder two-stage variable capacity compressor is provided, including: a first cylinder, having an exhaust port connected to a first exhaust channel: a second cylinder, wherein the second cylinder is provided with a ventilating slider, and the ventilating slider is provided with a first gas transit channel and a second gas transit channel; wherein, when the ventilating slider is at a first connecting position, the first exhaust channel is connected to a suction channel in a second cylinder when the ventilating slider is at a second connecting position, the first exhaust channel is connected to a second exhaust channel. The compressor of the present disclosure can vary its own capacity, that is, the variation of the compressor's capacity can be realized by arranging a ventilating slider, which will meet the requirements of variation loads of the compressor in different seasons.

Abstract: A dual-cylinder two-stage variable capacity compressor is provided, including: a first cylinder, having an exhaust port connected to a first exhaust channel: a second cylinder, wherein the second cylinder is provided with a ventilating slider, and the ventilating slider is provided with a first gas transit channel and a second gas transit channel; wherein, when the ventilating slider is at a first connecting position, the first exhaust channel is connected to a suction channel in a second cylinder when the ventilating slider is at a second connecting position, the first exhaust channel is connected to a second exhaust channel. The compressor of the present disclosure can vary its own capacity, that is, the variation of the compressor's capacity can be realized by arranging a ventilating slider, which will meet the requirements of variation loads of the compressor in different seasons.

Abstract: A variable capacity compressor is provided, including: two cylinders and a middle plate; at least one flow channel provided in the middle plate, wherein one end of the flow channel is connected to an exhaust chamber of any one of the two cylinders, the other end is connected to a suction chamber of the other one of the two cylinders. In present disclosure, by setting a flow channel in the middle plate of the variable capacity compressor, the exhaust chamber of one cylinder is connected to the suction chamber of the other cylinder. When the flow channel is completely closed, the two cylinders operate independently; when the flow channel is opened, the refrigerant in the exhaust chamber flows into the suction chamber through the flow channel, that is, the upper cylinders and the lower cylinder are connected to each other, which can adjust the capacity of the compressor.

Abstract: A method for producing insoluble sulfur, including: heating a sulfur to 200-700° C., quenching it with water, aqueous solution and other solvents, drying and solidifying the resulting substance at 40-80° C. for 3-15 h, to obtain an insoluble sulfur crude product; crushing the crude product in water into particles with a particle size of 50-400 meshes, wherein the water temperature is not higher than 80° C.; pumping the slurry of water and crude product into the upper part of an extraction column, pumping solvent into the lower part thereof; making the water and solvent from the top of the column flow into a separation tank to separate water phase and solvent phase, heating and evaporating the solvent phase to recover solvent and obtain soluble sulfur; heating and evaporating the insoluble sulfur and solvent from the bottom of the column to recover solvent and obtain purified insoluble sulfur.

Abstract: A method for producing insoluble sulfur, including: heating a sulfur to 200-700° C., quenching it with water, aqueous solution and other solvents, drying and solidifying the resulting substance at 40-80° C. for 3-15 h, to obtain an insoluble sulfur crude product; crushing the crude product in water into particles with a particle size of 50-400 meshes, wherein the water temperature is not higher than 80° C.; pumping the slurry of water and crude product into the upper part of an extraction column, pumping solvent into the lower part thereof; making the water and solvent from the top of the column flow into a separation tank to separate water phase and solvent phase, heating and evaporating the solvent phase to recover solvent and obtain soluble sulfur; heating and evaporating the insoluble sulfur and solvent from the bottom of the column to recover solvent and obtain purified insoluble sulfur.

Abstract: A shallow trench isolation (STI) structure is formed from a conventional STI trench structure of a first dielectric material extending into the substrate. The conventional STI structure undergoes further processing: removing a first portion of the dielectric material and adjacent portions of the semiconductor substrate to create a first recess, and then removing another portion of the dielectric material to create a second recess in just the dielectric material. A nitride spacer layer is formed above the remaining dielectric material and on the sidewalls of the substrate. A second dielectric material is formed on the spacer layer and fills the remainder of first and second recesses to a lever above the substrate. A nitride capping layer and another dielectric layer are disposed above the second material, thereby substantially encasing the STI structure in nitride. This provides a taller STI structure that results in a better fin profile during a subsequent fin reveal process.

Abstract: A shallow trench isolation (STI) structure is formed from a conventional STI trench structure of a first dielectric material extending into the substrate. The conventional STI structure undergoes further processing: removing a first portion of the dielectric material and adjacent portions of the semiconductor substrate to create a first recess, and then removing another portion of the dielectric material to create a second recess in just the dielectric material. A nitride spacer layer is formed above the remaining dielectric material and on the sidewalls of the substrate. A second dielectric material is formed on the spacer layer and fills the remainder of first and second recesses to a lever above the substrate. A nitride capping layer and another dielectric layer are disposed above the second material, thereby substantially encasing the STI structure in nitride. This provides a taller STI structure that results in a better fin profile during a subsequent fin reveal process.

Abstract: A method and structure for a semiconductor device that includes one or more fin-type field effect transistors (FINFETs) and single-diffusion break (SDB) type isolation regions, which are within a semiconductor fin and define the active device region(s) for the FINFET(s). Asymmetric trenches are formed in a substrate through asymmetric cuts in sacrificial fins formed on the substrate. The asymmetric cuts have relatively larger gaps between fin portions that are closest to the substrate, and deeper portions of the asymmetric trenches are relatively wider than shallower portions. Channel regions are formed in the substrate below two adjacent fins. Source/drain regions of complementary transistors are formed in the substrate on opposite sides of the channel regions. The asymmetric trenches are filled with an insulator to form a single-diffusion break between two source/drain regions of different ones of the complementary transistors. Also disclosed is a semiconductor structure formed according to the method.

Abstract: A method and structure for a semiconductor device that includes one or more fin-type field effect transistors (FINFETs) and single-diffusion break (SDB) type isolation regions, which are within a semiconductor fin and define the active device region(s) for the FINFET(s). Asymmetric trenches are formed in a substrate through asymmetric cuts in sacrificial fins formed on the substrate. The asymmetric cuts have relatively larger gaps between fin portions that are closest to the substrate, and deeper portions of the asymmetric trenches are relatively wider than shallower portions. Channel regions are formed in the substrate below two adjacent fins. Source/drain regions of complementary transistors are formed in the substrate on opposite sides of the channel regions. The asymmetric trenches are filled with an insulator to form a single-diffusion break between two source/drain regions of different ones of the complementary transistors. Also disclosed is a semiconductor structure formed according to the method.

Abstract: At least one method, apparatus and system is disclosed herein for forming a fin field effect transistor (finFET) device having a reduced breakdown voltage. The method comprises forming a first gate structure on a substrate of a semiconductor wafer in a first layer, the gate structure extending to a height of about h above the substrate. A trench is formed in the first layer adjacent the first gate structure and extends from a height of about d to the substrate. A connector is formed in the trench between the substrate and a layer of the finFET above the first layer. The process of forming the connector comprises; forming a thin film oxide on the sidewalls of the trench extending from a height below h to about d; forming a liner in the trench, extending over the substrate and on the sidewalls to about the height d over the thin film oxide and forming a layer of tungsten in the trench over the liner.

Abstract: At least one method, apparatus and system is disclosed herein for forming a fin field effect transistor (finFET) device having a reduced breakdown voltage. The method comprises forming a first gate structure on a substrate of a semiconductor wafer in a first layer, the gate structure extending to a height of about h above the substrate. A trench is formed in the first layer adjacent the first gate structure and extends from a height of about d to the substrate. A connector is formed in the trench between the substrate and a layer of the finFET above the first layer. The process of forming the connector comprises; forming a thin film oxide on the sidewalls of the trench extending from a height below h to about d; forming a liner in the trench, extending over the substrate and on the sidewalls to about the height d over the thin film oxide and forming a layer of tungsten in the trench over the liner.

Abstract: One illustrative method disclosed herein includes, among other things, forming first and second fins for a short channel FinFET device (“SCD”) and a long channel FinFET device (“LCD”), performing an oxidation process to form a sacrificial oxide material selectively on the channel portion of one of the first and second fins but not on the channel portion of the other of the first and second fins, removing the sacrificial oxide material from the fin on which it is formed so as to produce a reduced-size channel portion on that fin that is less than the initial size of the channel portion of the other non-oxidized fin, and forming first and second gate structures for the SCD and LCD devices.

Abstract: Disclosed is a method of forming a semiconductor structure that includes one or more fin-type field effect transistors (FINFETs) and single-diffusion break (SDB) type isolation regions that are within a semiconductor fin and that define the active device region(s) for the FINFET(s). The isolation regions are formed so that they include a semiconductor liner. The semiconductor liner ensures that, when a source/drain recess is formed immediately adjacent to the isolation region, the bottom and opposing sides of the source/drain recess will have semiconductor surfaces onto which epitaxial semiconductor material for a source/drain region is grown. As a result, the angle of the top surface of the source/drain region relative to the top surface of the semiconductor fin is minimized. Thus, the risk that a subsequently formed source/drain contact will not reach the source/drain region is also minimized. Also disclosed is a semiconductor structure formed according to the method.

Abstract: An angled gas cluster ion beam is used for each sidewall and top of a fin (two applications) to form work-function metal layer(s) only on the sidewalls and top of each fin.