EP3539148A1 - Mos-bauelement, elektrische schaltung sowie batterieeinheit für ein kraftfahrzeug - Google Patents
Mos-bauelement, elektrische schaltung sowie batterieeinheit für ein kraftfahrzeugInfo
- Publication number
- EP3539148A1 EP3539148A1 EP17768094.9A EP17768094A EP3539148A1 EP 3539148 A1 EP3539148 A1 EP 3539148A1 EP 17768094 A EP17768094 A EP 17768094A EP 3539148 A1 EP3539148 A1 EP 3539148A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- single layer
- mos device
- gate element
- channel region
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/68—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator
- H10D64/681—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator having a compositional variation, e.g. multilayered
- H10D64/683—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator having a compositional variation, e.g. multilayered being parallel to the channel plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0466—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells with charge storage in an insulating layer, e.g. metal-nitride-oxide-silicon [MNOS], silicon-oxide-nitride-oxide-silicon [SONOS]
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/68—Floating-gate IGFETs
- H10D30/681—Floating-gate IGFETs having only two programming levels
- H10D30/683—Floating-gate IGFETs having only two programming levels programmed by tunnelling of carriers, e.g. Fowler-Nordheim tunnelling
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/69—IGFETs having charge trapping gate insulators, e.g. MNOS transistors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/69—IGFETs having charge trapping gate insulators, e.g. MNOS transistors
- H10D30/694—IGFETs having charge trapping gate insulators, e.g. MNOS transistors characterised by the shapes, relative sizes or dispositions of the gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/01—Manufacture or treatment
- H10D64/031—Manufacture or treatment of data-storage electrodes
- H10D64/035—Manufacture or treatment of data-storage electrodes comprising conductor-insulator-conductor-insulator-semiconductor structures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/01—Manufacture or treatment
- H10D64/031—Manufacture or treatment of data-storage electrodes
- H10D64/037—Manufacture or treatment of data-storage electrodes comprising charge-trapping insulators
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W20/00—Interconnections in chips, wafers or substrates
- H10W20/40—Interconnections external to wafers or substrates, e.g. back-end-of-line [BEOL] metallisations or vias connecting to gate electrodes
- H10W20/49—Adaptable interconnections, e.g. fuses or antifuses
- H10W20/491—Antifuses, i.e. interconnections changeable from non-conductive to conductive
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a MOS device, an electrical
- the accumulator technology is one of the key elements for electromobility.
- Critical here are mainly the storage density, which is reflected directly in the range of the vehicles and the handling of
- a MOS component with a gate element and a channel region wherein between the gate element and the channel region an electrically insulating layer is arranged which consists of at least three individual layers, wherein a first single layer of an electrically insulating material adjacent to the gate element is a second single layer adjacent neither to the gate nor to the channel region is a memory layer which is for permanently storing charges, and a third adjacent to the channel region
- Single layer consists of an electrically insulating material.
- the MOS device is characterized in that the entirety of the between the
- a MOS component is understood to mean a metal-oxide-semiconductor component, "metal oxide semiconductor”, for example a MOSFET, ie a “metal oxide semiconductor field effect transistor”, or a MOS diode. Also conceivable are further, possibly multifunctional components, which however have at least one section according to the invention with the disclosed function.
- a gate element is understood in particular to mean a component or a section of the component or of a component which, when a voltage is applied to the gate element or when a change is made to the component
- Gate element applied voltage causes a change in the conductivity from source to drain of the MOS device.
- a channel region is understood to mean, in particular, a segment made of a doped semiconductor material, the conductivity of which is determined by applying a
- an equivalent oxide thickness EOT is meant a quantity indicating the insulating effect of a dielectric in the unit of a layer thickness of silicon oxide.
- the actual layer thickness d mat is modified via the ratio of the electric field constant ⁇ ⁇ of the relevant material to the electrical field constant s r SiO 2 of the silicon oxide as a factor:
- the MOS component according to the invention for example a MOSFET or power MOSFET or power MOSFET with a low channel resistance and the low battery voltage adapted to the battery cell to be protected, can be used as a fuse or short-circuit element for the battery cell.
- the device has a charge storage layer, which traps charges, so trap and store, and thus the threshold voltage of the transistor, so the voltage at which the MOSFET switches, can change.
- Memory layer can change the threshold voltage of the MOSFET. If the charge introduced is sufficiently large, then the sign of the threshold voltage and thus the characteristic of the component can change in the state without voltage applied to the gate.
- the formula applies: where AV thiNnit the difference of the threshold voltage to the threshold voltage in the neutral state as a function of the charge introduced into the storage layer, that is usually in the nitride layer, N nit , d topox is the thickness of Topoxids, ie the third single layer, d nit is the thickness of the nitride layer or storage layer, ie the second single layer and ⁇ 0 , s r SiO 2 and s rinit are the known electrical field constants for the vacuum, silicon oxide and silicon nitride. Of course, if the storage layer is not silicon nitride, the material constants of the corresponding material must be used for the calculation.
- the MOS component according to the invention has the advantage that, for the first time, a long-term stable short-circuit switch, which can also be referred to as antifuse, is available. It can be used for example as a battery backup.
- the MOS component in particular a MOSFET, can be converted from a "normally-off" state, that is to say a self-blocking state, in which the component is in so-called enhancement mode, by manipulating the memory layer into a "normally-on" state.
- both states are long-term stable over many years and not dependent on a permanent power supply.
- a normally-off device can thus be a permanently conductive
- Component for example, to a so-called self-retaining
- the memory layer can be applied by application or by a programming voltage applied to the gate element, for example in the form of a programming pulse
- Removal of charge can be manipulated such that the MOS device changes from the blocking to the conductive state, thus allowing a controlled discharge of the battery cell.
- a total equivalent oxide thickness of all individual layers arranged between the gate element and the channel region is between 15 nm and 25 nm, preferably between 18 nm and 22 nm, particularly preferably between 19 nm and 21 nm.
- the equivalent oxide thickness of the entire insulating layer is directly related to the required gate voltages as well as to the
- the first single layer and the third single layer can each be made out
- Silicon oxide (S1O2) and the second single layer may be silicon nitride (S13N4). Both substances are well known from the prior art, so it will not be discussed further here.
- Other materials for the insulating single layers such as
- the second single layer is designed as a floating gate. It can then consist of polysilicon. Whether an execution of the second single layer, so the memory layer, as a floating gate
- Polysilicon or as described above of silicon nitride is preferable depends on the specific application. Both variants entail different required layer thicknesses and dopings, which can lead to different channel resistances. Usually a low channel resistance is preferred.
- the second single layer has a thickness between 8 nm and 12 nm, preferably between 9 nm and 11 nm, particularly preferably between 9.5 nm and 10.5 nm.
- a thickness between 8 nm and 12 nm, preferably between 9 nm and 11 nm, particularly preferably between 9.5 nm and 10.5 nm.
- the tunneling process may advantageously be Fowler-Nordheim tunneling. It is then not necessary that charges, ie electrons or holes, tunnel through the complete energy barrier of the respective insulating layer, but the band diagram is already slightly bent by the application of a voltage at the gate, so that the effective barrier for the charges is reduced.
- Fowler-Nordheim tunnels usually start at a voltage of about 10 MV / cm.
- the programming voltage is configured in the form of a voltage pulse. This is not a permanent one Voltage source necessary, but the voltage pulse can be kept for example in the form of a charged capacitor.
- Voltage pulse for example, have a length between 100 ⁇ and 1 ms and have a voltage with an amount between 5 V and 20 V.
- a programming voltage in the form of a voltage pulse having a length between 100 ⁇ and 1 ms may be sufficient to change the charge in the second single layer by a tunneling current such that the MOS device permanently changes from a blocking state to a conducting state or vice versa. The essential to the invention switching process can thus be easily triggered.
- the MOS component transitions from a normal-off state to a normally-on state by the tunneling.
- the device can thus bring about a controlled short circuit, for example a defective battery cell, which then leads to the slow discharge of the battery cell.
- An alternative embodiment advantageously provides that the second individual layer is electrically pre-charged in a delivery state of the MOS component. It is then possible with advantage that stored in the second single layer
- Charges can be released by applying a voltage to the gate element. This process is referred to as "detrapping.”
- the memory layer for switching the device is not charged but discharged, which may be advantageous when it is desired to specifically tunnel electrons or holes, due to the different effective Masses can lead to significant changes in the required programming voltage and other parameters.
- the precharging of the floating gate with electrons may be due to negative voltage at the gate during the final measurement, ie in a test step during the
- the native threshold voltage which is less than 0 V, is increased by injection, for example, to 3 to 5 volts.
- a development of the invention provides that the first intermediate layer is thinned out in at least one area, so that charges can be injected into the second single layer through the thinned area. In this way an anisotropy of the tunnel barrier can be achieved. It is then easier for the charges to tunnel into the storage layer than to tunnel out of it. The temporal stability of the "self-retaining" state, ie the conductive state, is thus increased.
- an electrical circuit with an ASIC that is to say an application-specific integrated circuit, or "custom chip”, and a MOS component according to the invention are also proposed
- the ASIC can be used to determine the state of the to monitor the battery cell to be protected.
- the ASIC If the ASIC detects a fault condition, it can initiate the triggering of the anti-fuse so that the battery cell is discharged in a controlled manner.
- the ASIC can serve as the programming pulse
- the ASIC may have a charge storage for this purpose.
- An amount of charge large enough to hold a sufficient amount of charge in the charge storage may be stored in the charge storage
- the charge storage device may be, for example, a capacitor or a small battery.
- the MOS component is a power MOSFET.
- Such power MOSFETs are characterized by a low channel resistance and can be used practically in the automotive industry in particular. It is particularly advantageous if the MOS component can be used as an antifuse or as an anti-fuse.
- Such a device fulfills the purpose of creating an opportunity with the help of an electronic component to establish a conductive connection in the event of a fault.
- FIG. 1 shows a schematic cross section through a first embodiment of a MOS component according to the invention
- Figure 2 shows a schematic cross section through a second embodiment of a MOS component according to the invention
- FIG. 3 shows a schematic cross section through a third exemplary embodiment of a MOS component according to the invention
- FIG. 4 shows a schematic cross section through a fourth exemplary embodiment of a MOS component according to the invention
- FIG. 5 shows a MOS component according to the invention during precharging of the storage layer
- FIG. 6 shows a MOS component according to the invention during the discharge of the storage layer
- FIG. 7 shows a schematic band diagram for an exemplary embodiment in FIG
- FIG. 8 shows a schematic band diagram for a SONOS-type embodiment in the state with a charged memory layer
- FIG. 9 shows a schematic band diagram for a TANOS-type embodiment in the state with uncharged storage layer
- FIG. 10 shows a schematic band diagram for a TANOS-type embodiment in the state with a charged memory layer
- FIG. 11 shows a schematic cross section through a fifth exemplary embodiment of a MOS component according to the invention in the form of a trench MOSFET
- FIG. 12 shows a circuit diagram with a MOS component according to the invention and an ASIC in the normal state
- Figure 13 is a circuit diagram with a MOS device according to the invention and an ASIC during the switching of the MOS device, and
- Figure 14 is a circuit diagram with a MOS device according to the invention and an ASIC after the switching of the MOS device.
- FIG. 1 shows a MOS component 2 according to the invention in the form of a MOSFET.
- This may be, for example, a DMOS ("double-diffused metal-oxide semiconductor field effect transistor"), UMOS ("v-grooved MOS field-effect transistor”) or a field-plate-based
- MOSFET act acts.
- the lower part of the figure shows the classical structure of an npn MOSFET.
- npn MOSFET it is also possible to construct a pnp MOSFET according to the invention. The sign of all dopings and voltages is then inverted and the type of majority charge carriers changes accordingly.
- Essential for the invention is the stapeiförmige layer structure between that from the source and drain regions 4 and 6, the body region 8 and the Drift zone 10 existing active semiconductor region and the gate element 12.
- This range consists in the illustrated and simplest possible case according to the invention of three individual layers, namely a first single layer 14, which may be referred to as bottom oxide, a second single layer 16, which may be referred to as a storage layer, and a third single layer 18, which may be referred to as top oxide.
- Bottom oxide 14 is made thicker than the top oxide 18. This is a significant difference to the design of known MOSFETs in nonvolatile memory chips, which is otherwise similar. This is due to the fact that in the
- the memory layer 16 is loaded and unloaded from the gate element 12, whereas access to the memory layer in the case of the known non-volatile memory chips occurs from the channel region.
- Figure 2 shows an embodiment analogous to the MOS component 2 shown in Figure 1 with a concrete embodiment of the thicknesses of the three
- the first single layer 14, so the bottom oxide is relatively thick with a thickness of 10 nm and consists of silicon oxide.
- the second single layer 16, ie the memory layer consists of silicon nitride and likewise has a thickness of 10 nm.
- the third single layer 18, ie the top oxide again consists of silicon oxide and has a relatively small thickness of 5 nm in order to allow the tunneling of charge carriers through the third single layer.
- EOT equivalent oxide thickness
- the MOSFET 2 is manufactured using SONOS technology, ie it has a "silicon-oxide-nitride-oxide-silicon” stack, the first "silicon” referring to the gate electrode, which is usually made of polysilicon, ie heavily doped polycrystalline silicon, is made.
- the newer TANOS technology is also possible, in this case a "tantalum nitride-alumina (silicon) nitride-oxide-silicon” stack is used, the gate material is tantalum nitride and the top oxide is alumina has technical advantages, for example because of the high work function of the
- Trigger voltage and a shorter trigger pulse allows.
- Provision of the programming pulse or the trigger pulse required energy storage which may be integrated, for example, in an ASIC, then may be smaller.
- Figure 3 shows a variant in which the storage layer not as
- the floating gate 20 is made of polysilicon and is completely electrically isolated from the other active elements such as source region 4, drain region 6 or gate element 12.
- the thicknesses of the bottom oxide 14 and the top oxide 18 in the case shown here correspond to those shown in FIG.
- Embodiment but may also differ from the values described there.
- FIG. 4 shows a variation of the exemplary embodiment illustrated in FIG. 3, in which the top oxide 18 is thinned out in a region 22. The thinned
- Region 22 is filled by an injection tip 24 of the gate element 12, which is usually made of metal or polysilicon.
- FIG. 5 shows the embodiment from FIG. 3 during precharging. In this case, by a magnitude relatively large charging voltage of -20 V in the example shown, which is applied to the gate element 12, the
- Tunneling probability for electrons 22 increased such that a
- MOSFET is to be put in a non-conductive state.
- Figures 7 to 10 show schematic band diagrams of the respective first to third individual layers 14, 16 and 18 with the lower edges of the valence band 38 and the upper edges of the conduction band 40.
- the figures 7 and 8 show a MOS device in SONOS design and Figures 9 and 10, a MOS device in TANOS design.
- FIGS. 7 and 9 each show the state in which no voltage is applied to the gate 12.
- FIGS. 8 and 10 show the state in which during the
- Programming pulse a programming voltage, for example, +5 V, is applied to the gate 12.
- the bands 38, 40 respectively bend and allow holes 42 to tunnel into the storage layer 16 where they accumulate as positive charges.
- FIG. 11 shows a variant embodiment as a vertical trench MOSFET 26.
- the drain region 6 is arranged here in the lower region of the figure. Furthermore, the source region 4, the body region 8, the gate element 12 and the
- Field plate 26 can be seen.
- the layer structure between the gate element 12 and the channel region 10 is relevant to the invention. This in turn consists of a first single layer 14, a second single layer 16 and a third single layer 18. The three individual layers 14, 16 and 18
- the second single layer 16 is in turn designed as a silicon nitride layer.
- a floating gate would be just as possible here.
- Top oxide layer 18 deposited. The trench geometry changes only slightly.
- the changed threshold voltage due to higher EOT can be due to the
- FIG. 12 shows a circuit diagram for a MOS component according to the invention in the form of a MOSFET 2. This is connected in series with the battery or a battery cell 28 to be protected. A separate circuit in the form of an ASIC 30 is used to monitor the state of the battery cell 28. In case of failure of the battery cell 28 is in the ASIC 30 has its own smaller
- Charge storage 32 for example in the form of a capacitor integrated. This gives, as shown in Figure 13, upon detection of a fault condition of
- Battery cell 28 a switching or trigger pulse 34 to the MOSFET 2 from. Due to the external short circuit by means of the MOSFET 2 or by the fault condition of the battery cell 28 itself, the voltage on the ASIC 30 and the charge storage 32 now drops, so that no signal can be generated here. This is shown in FIG. The storage load of
- charge storage 32 is sufficient enough to trigger a trigger pulse 34 of the required size.
- the trigger pulse 34 By the trigger pulse 34, the MOSFET 2 is turned on and the injection described above takes place. This sometimes happens very fast, for example in a time between 100 ⁇ and 1 ms, similar to known chargeable trapping memories.
- Trigger pulse 34 remains due to breakdown of the ASIC power supply the MOSFET 2 is turned on by the injected holes in the memory layer, so it is in the depletion mode.
- the ONO or ANO construction (oxide-nitride-oxide or
- Alumina-nitride-oxide ensures that the charge is permanent in the
- Charge storage 32 remains and thus remains on for life. A permanent short circuit of the battery cell 28 in case of failure is guaranteed.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Protection Of Static Devices (AREA)
- Electrodes Of Semiconductors (AREA)
- Semiconductor Integrated Circuits (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016222213.9A DE102016222213A1 (de) | 2016-11-11 | 2016-11-11 | MOS-Bauelement, elektrische Schaltung sowie Batterieeinheit für ein Kraftfahrzeug |
| PCT/EP2017/073023 WO2018086787A1 (de) | 2016-11-11 | 2017-09-13 | Mos-bauelement, elektrische schaltung sowie batterieeinheit für ein kraftfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3539148A1 true EP3539148A1 (de) | 2019-09-18 |
Family
ID=59887261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17768094.9A Pending EP3539148A1 (de) | 2016-11-11 | 2017-09-13 | Mos-bauelement, elektrische schaltung sowie batterieeinheit für ein kraftfahrzeug |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10770564B2 (de) |
| EP (1) | EP3539148A1 (de) |
| JP (1) | JP6917452B2 (de) |
| CN (1) | CN109923646A (de) |
| DE (1) | DE102016222213A1 (de) |
| TW (1) | TWI743248B (de) |
| WO (1) | WO2018086787A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018211834A1 (de) * | 2018-07-17 | 2020-01-23 | Robert Bosch Gmbh | Schaltungsanordnung |
| DE102018214618B4 (de) * | 2018-08-29 | 2021-07-22 | Robert Bosch Gmbh | Transistor, Kurzschlussschaltung sowie Vorrichtung |
| WO2022015963A1 (en) * | 2020-07-17 | 2022-01-20 | Kkt Holdings Syndicate | Quaternary field effect transistor |
| WO2022181999A1 (ko) * | 2021-02-23 | 2022-09-01 | 한국과학기술원 | 우수한 선형성 특성을 갖는 뉴로모픽 시냅스 소자 및 그 동작 방법 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130256747A1 (en) * | 2010-12-20 | 2013-10-03 | The Hong Kong University Of Science And Technology | Power semiconductor field effect transistor structure with charge trapping material in the gate dielectric |
Family Cites Families (47)
| Publication number | Priority date | Publication date | Assignee | Title |
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- 2017-09-13 CN CN201780069717.3A patent/CN109923646A/zh active Pending
- 2017-09-13 EP EP17768094.9A patent/EP3539148A1/de active Pending
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|---|---|
| US10770564B2 (en) | 2020-09-08 |
| CN109923646A (zh) | 2019-06-21 |
| JP6917452B2 (ja) | 2021-08-11 |
| US20190273146A1 (en) | 2019-09-05 |
| DE102016222213A1 (de) | 2018-05-17 |
| WO2018086787A1 (de) | 2018-05-17 |
| TW201818555A (zh) | 2018-05-16 |
| TWI743248B (zh) | 2021-10-21 |
| JP2020515027A (ja) | 2020-05-21 |
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