CN219496430U - Electrostatic discharge device - Google Patents
Electrostatic discharge device Download PDFInfo
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- CN219496430U CN219496430U CN202223392714.0U CN202223392714U CN219496430U CN 219496430 U CN219496430 U CN 219496430U CN 202223392714 U CN202223392714 U CN 202223392714U CN 219496430 U CN219496430 U CN 219496430U
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- 230000005611 electricity Effects 0.000 claims abstract description 23
- 230000003068 static effect Effects 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims description 45
- 230000002159 abnormal effect Effects 0.000 claims description 22
- 238000007599 discharging Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036039 immunity Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Elimination Of Static Electricity (AREA)
- Liquid Crystal (AREA)
- Tests Of Electronic Circuits (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to an electrostatic discharge device, which is electrically connected with a high-voltage source, comprising: a substrate; the electrostatic discharge modules are arranged on the substrate, the electrostatic discharge modules are electrically connected between the high-voltage source and a plurality of objects to be tested, each electrostatic discharge module comprises a first electrostatic discharge unit and a second electrostatic discharge unit, one of the first electrostatic discharge unit and the second electrostatic discharge unit of at least one electrostatic discharge module can be selected for outputting static electricity to one of the objects to be tested, and the first electrostatic discharge unit is different from the second electrostatic discharge unit. The electrostatic discharge device integrates a plurality of groups of electrostatic discharge modules on a substrate, and has small overall volume and reduces the occupied space of a machine.
Description
Technical Field
The utility model relates to an electrostatic discharge device.
Background
When static electricity carried by a human body or an adjacent object or equipment discharges electronic products, electronic elements, electronic systems and the like, the electronic products, the electronic elements and the electronic systems are damaged due to excessive qualitative stress, and cannot normally operate. It is necessary to conduct electrostatic discharge (ESD) immunity tests on electronic products, electronic components, and electronic systems.
In general, an electrostatic discharge (ESD) immunity test is performed by using a detection simulator (e.g., an electron gun or an electrostatic generator). The modes required for general detection include a human body discharge mode (HBM), a machine discharge mode (MM), a device charge mode (CDM), and the like; however, since the test in different modes is performed by different test simulators, a plurality of test simulators are required, which not only occupies space but also requires high cost.
Accordingly, there is a need for a new and improved electrostatic discharge device that solves the above-mentioned problems.
Disclosure of Invention
The main objective of the present utility model is to provide an electrostatic discharge device that integrates multiple groups of electrostatic discharge modules on a substrate, and has a small overall size to reduce the space occupied by the machine.
To achieve the above object, the present utility model provides an electrostatic discharge device electrically connected to a high voltage source, comprising: a substrate; the electrostatic discharge modules are arranged on the substrate, are respectively connected between the high-voltage source and the objects to be tested in a power supply mode, and comprise a first electrostatic discharge unit and a second electrostatic discharge unit, one of the first electrostatic discharge unit and the second electrostatic discharge unit of at least one electrostatic discharge module can be selected for outputting static electricity to one of the objects to be tested, and the first electrostatic discharge unit is different from the second electrostatic discharge unit.
Preferably, the second electrostatic discharge unit of each electrostatic discharge module is a human electrostatic discharge module, and the first electrostatic discharge unit of each electrostatic discharge module is a machine electrostatic discharge module.
Preferably, the first electrostatic discharge unit is connected in parallel with the second electrostatic discharge unit.
Preferably, the first electrostatic discharge unit of each electrostatic discharge module comprises a first power-on switch, a first storage and discharge unit and a first discharge switch, wherein the first power-on switch is electrically connected between the high-voltage source and the first storage and discharge unit, and the first discharge switch is electrically connected between the first storage and discharge unit and one of the objects to be tested.
Preferably, the second electrostatic discharge unit of each electrostatic discharge module comprises a second power-on switch, a second storage and discharge unit and a second discharge switch, wherein the second power-on switch is electrically connected between the high-voltage source and the second storage and discharge unit, and the second discharge switch is electrically connected between the second storage and discharge unit and one of the objects to be tested.
Preferably, the device further comprises a control unit, wherein the control unit is electrically connected with the plurality of electrostatic discharge modules, and the control unit can selectively control at least one of the first electrostatic discharge unit or the second electrostatic discharge unit of the electrostatic discharge modules to output static electricity to at least one object to be tested.
Preferably, the control unit selectively controls one of the first electrostatic discharge units and the second electrostatic discharge units of the electrostatic discharge modules to output static electricity to the plurality of objects to be tested.
Preferably, the device further comprises a monitoring module, wherein the monitoring module comprises a plurality of monitoring units, and each monitoring unit is electrically connected between one of the electrostatic discharge modules and one of the objects to be tested; when one of the monitoring units receives that one of the first output electric quantity of the first electrostatic discharge unit or one of the second output electric quantity of the second electrostatic discharge unit of one of the electrostatic discharge modules is abnormal, the monitoring unit generates a first abnormal signal or a second abnormal signal.
Preferably, the first electrostatic discharge unit and the second electrostatic discharge unit of each electrostatic discharge module are connected in parallel.
Preferably, the second electrostatic discharge unit of each electrostatic discharge module is a human electrostatic discharge module, and the first electrostatic discharge unit of each electrostatic discharge module is a machine electrostatic discharge module; the first electrostatic discharge unit and the second electrostatic discharge unit of each electrostatic discharge module are connected in parallel; the first electrostatic discharge unit of each electrostatic discharge module comprises a first power-on switch, a first electricity storage and discharge unit and a first discharge switch, wherein the first power-on switch is electrically connected between the high-voltage source and the first electricity storage and discharge unit, and the first discharge switch is electrically connected between the first electricity storage and discharge unit and one of the objects to be tested; the second electrostatic discharge unit of each electrostatic discharge module comprises a second power-on switch, a second storage and discharge unit and a second discharge switch, wherein the second power-on switch is electrically connected between the high-voltage source and the second storage and discharge unit, and the second discharge switch is electrically connected between the second storage and discharge unit and one of the objects to be tested; the control unit can selectively switch the first power-on switch of the first electrostatic discharge unit of at least one electrostatic discharge module to start a charging mode, charge the first storage and discharge unit, or switch the second power-on switch of the second electrostatic discharge unit of at least one electrostatic discharge module to start a charging mode, and charge the second storage and discharge unit; the control unit can selectively switch the first discharge switch of the first electrostatic discharge unit or the second discharge switch of the second electrostatic discharge unit of at least one electrostatic discharge module to start a discharge mode so that the first storage discharge unit or the second storage discharge unit outputs static electricity to one of the objects to be detected; the plural electrostatic discharge modules are connected in parallel; the second electrostatic discharge unit of each electrostatic discharge module further comprises a resistor, and the resistor is electrically connected between the second discharge switch and one of the objects to be detected; the electrostatic discharge device further comprises a monitoring module, wherein the monitoring module comprises a plurality of monitoring units, and each monitoring unit is electrically connected between one of the electrostatic discharge modules and one of the objects to be tested; when each monitoring unit receives that the first output electric quantity of the first electrostatic discharge unit or the second output electric quantity of the second electrostatic discharge unit of one electrostatic discharge module is abnormal, the monitoring unit generates a corresponding first abnormal signal or a second abnormal signal; the monitoring unit sets a first output electric quantity reference value and a second output electric quantity reference value; when each monitoring unit receives that the electric quantity of the first output electric quantity of the first electrostatic discharge unit of one electrostatic discharge module is different from the first output electric quantity reference value, the monitoring unit generates the first abnormal signal; when one of the monitoring units receives that the electric quantity of the second output electric quantity of the second electrostatic discharge unit of one electrostatic discharge module is different from the second output electric quantity reference value, the monitoring unit generates the second abnormal signal; the plurality of monitoring units are respectively and electrically connected with the control unit.
The utility model has the advantages that:
the electrostatic discharge device integrates a plurality of groups of electrostatic discharge modules on a substrate, and has small overall volume and reduces the occupied space of a machine.
Drawings
Fig. 1 is a perspective view of a preferred embodiment of the present utility model.
Fig. 2 is a circuit diagram of a preferred embodiment of the present utility model.
FIG. 3 is a configuration diagram of a preferred embodiment of the present utility model.
Detailed Description
The following examples are given to illustrate possible embodiments of the present utility model, but are not intended to limit the scope of the utility model.
Referring to fig. 1 to 3, there is shown an electrostatic discharge device 1 according to a preferred embodiment of the present utility model, which is electrically connected to a high voltage source 2, wherein the electrostatic discharge device 1 comprises a substrate 3 and an electrostatic discharge module 9.
The substrate 3 is a circuit board; the electrostatic discharge modules 9 are disposed on the substrate 3, the electrostatic discharge modules 9 are electrically connected between the high voltage source 2 and the objects to be tested 6a,6b, each electrostatic discharge module 9 includes a first electrostatic discharge unit 4 and a second electrostatic discharge unit 5, one of the first electrostatic discharge unit 4 and the second electrostatic discharge unit 5 of at least one electrostatic discharge module 9 can be selected to output static electricity to one of the objects to be tested 6a,6b (such as electronic devices, circuits, electronic systems, etc.), the objects to be tested 6a,6b are different electronic devices, circuits or electronic systems, and the first electrostatic discharge unit 4 is different from the second electrostatic discharge unit 5. In the present embodiment, the second electrostatic discharge unit 5 is a human electrostatic discharge module (HBM) with a voltage range of ±250V to ±4000V, and the first electrostatic discharge unit 4 is a machine electrostatic discharge module (MM) with a voltage range of ±100V to ±400V, but not limited thereto; in other embodiments, the first electrostatic discharge unit and the second electrostatic discharge unit may be in a device charging mode or an electric field induction mode, respectively. The first electrostatic discharge unit 4 is connected with the second electrostatic discharge unit 5 in parallel; therefore, a plurality of groups of electrostatic discharge modules 9 are integrated on the substrate 3, the whole volume is small, the occupied space of a machine is reduced, wiring (Layout) is improved, and a discharge mode can be selected according to requirements to perform electrostatic discharge detection on one object 6a,6b or a plurality of objects 6a,6b to be detected.
The first esd unit 4 of each esd module 9 includes a first power switch 41, a first storage unit 42 and a first discharge switch 43, the first power switch 41 of each esd module 9 is electrically connected between the high voltage source 2 and the first storage unit 42, and the first discharge switch 43 is electrically connected between the first storage unit 42 and one of the objects 6a,6b to be tested. The second electrostatic discharge unit 5 of each electrostatic discharge module 9 includes a second power-on switch 51, a second storage and discharge unit 52, and a second discharge switch 53, where the second power-on switch 51 is electrically connected between the high voltage source 2 and the second storage and discharge unit 52, and the second discharge switch 53 is electrically connected between the second storage and discharge unit 52 and one of the objects 6a,6b to be tested.
The first and second storage units 42 and 52 of any one of the esd modules 9 are electrically connected to the same object 6a and 6b, respectively. The plural electrostatic discharge modules 9 are connected in parallel. The second esd unit 5 of each esd module 9 further comprises a resistor 44, and the resistor 44 is electrically connected between the second discharge switch 53 and one of the objects 6a,6b to simulate human body discharge. The first storage and discharge unit 42 and the second storage and discharge unit 52 are each a capacitor, in this embodiment, the capacitance of the capacitor is 100pF, and the resistance of the resistor 44 is 1.5K.
The esd device 1 further comprises a control unit 7, wherein the control unit 7 is an electronic device (e.g. a computer), a portable electronic device (e.g. a mobile device, a pen, etc.). The control unit 7 is electrically connected to the plurality of electrostatic discharge modules 9, and the control unit 7 can selectively control one of the first electrostatic discharge unit 4 and the second electrostatic discharge unit 5 of at least one of the electrostatic discharge modules 9 to output static electricity to the at least one object to be tested 6a,6b, specifically, only one of the first electrostatic discharge unit 4 or the second electrostatic discharge unit 5 of the electrostatic discharge module 9 can be selected to output static electricity to one of the objects to be tested 6a,6b; alternatively, the first electrostatic discharge unit 4 or the second electrostatic discharge unit 5 of the electrostatic discharge module 9 can output static electricity to the objects 6a,6b. That is, the electrostatic discharge module (HBM) or the electrostatic discharge module (MM) can be selected for one of the objects 6a,6b to be tested individually, or the object 6a and the object 6b to be tested can be tested simultaneously in the same mode (i.e. both the electrostatic discharge module (HBM) or the electrostatic discharge module (MM)) or in different modes (one of them is the electrostatic discharge module (HBM) and the other is the electrostatic discharge module (MM)) to output static.
In this embodiment, the control unit 7 selectively controls the first electrostatic discharge unit 4 or the second electrostatic discharge unit 5 of the electrostatic discharge module 9 to output static electricity to the plurality of objects 6a,6b. Specifically, the control unit 7 may selectively switch the first power switch 41 of the first electrostatic discharge unit 40 of at least one electrostatic discharge module 9 to turn on a charging mode, charge the first storage and discharge unit 42, or switch the second power switch 51 of the second electrostatic discharge unit 5 of at least one electrostatic discharge module 9 to turn on a charging mode, charge the second storage and discharge unit 52; the control unit 7 selectively switches the first discharging switch 43 of the first electrostatic discharging unit 4 of the plurality of electrostatic discharging modules 9 to open a discharging mode to make the first storing and discharging unit 42 output static electricity to at least one object 6a,6b to be tested, or switches the second discharging switch 53 of the second electrostatic discharging unit 5 to open a discharging mode to make the second storing and discharging unit 52 output static electricity to at least one object 6a,6b to be tested. That is, the plural electrostatic discharge modules can be selected to perform electrostatic discharge detection in the same mode or different modes on all the objects 6a,6b, on a specific number of objects 6a,6b or on a single object 6a,6b.
The esd device 1 further comprises a monitor module 8, the monitor module 8 comprises a plurality of monitor units 81,82, the monitor unit 81 is electrically connected between one of the esd modules 9 and one of the objects 6a,6b; when one of the monitoring units 81,82 receives that a first output power of the first electrostatic discharge unit 4 or a second output power of the second electrostatic discharge unit 5 of one of the electrostatic discharge modules 9 is abnormal (e.g. the output power is too high, too low or zero), the monitoring units 81,82 generate a corresponding first abnormal signal or a second abnormal signal. In this embodiment, each of the monitoring units 81 sets a first output power reference value and a second output power reference value; wherein, when each of the monitoring units 81,82 receives that the first output power of the first electrostatic discharge unit 4 of one of the electrostatic discharge modules 9 is different from the first output power reference value, the monitoring unit generates the first abnormal signal; when one of the monitoring units 81 receives the second output power of the second electrostatic discharge unit 5 of one of the electrostatic discharge modules 9, the power of the second output power is different from the second output power reference value, and the monitoring units 81,82 generate the second abnormal signal. The first output power reference value and the second output power reference value may be a range value or a numerical value. Further, the object to be tested 6a is electrically connected to a first circuit path, the object to be tested 6b is electrically connected to a second circuit path, and the monitoring unit 81 is electrically connected to the first circuit path to monitor the electrostatic output amounts of the first electrostatic discharge unit 4 and the second electrostatic discharge unit 5 electrically connected thereto; the monitoring unit 82 is electrically connected to the second circuit path to monitor the electrostatic output amounts of the first electrostatic discharge unit 4 and the second electrostatic discharge unit 5 electrically connected thereto, so as to achieve the purpose of self-detecting whether the electrostatic output amounts are normal. The monitoring unit 81 and the monitoring unit 82 are respectively electrically connected to the control unit 7, so that when the monitoring unit 81 and the monitoring unit 82 analyze that the output electrostatic amounts of the first electrostatic discharge unit 4 and the second electrostatic discharge unit 5 of one of the electrostatic discharge modules 9 are abnormal, a signal can be transmitted to the control unit 7 to regulate the electrostatic discharge amounts of the first electrostatic discharge unit 4 and the second electrostatic discharge unit 5.
In summary, the electrostatic discharge device of the present utility model has a small overall size, reduces the space occupied by the machine, and can self-monitor the electrostatic discharge amount.
The foregoing is a description of the preferred embodiments of the present utility model and the technical principles applied thereto, and it will be apparent to those skilled in the art that any equivalent transformation, simple substitution, etc. based on the technical scheme of the present utility model can be made without departing from the spirit and scope of the present utility model.
Claims (10)
1. An electrostatic discharge device, electrically connected to a high voltage source, comprising:
a substrate;
the electrostatic discharge modules are arranged on the substrate, are respectively connected between the high-voltage source and the objects to be tested in a power supply mode, and comprise a first electrostatic discharge unit and a second electrostatic discharge unit, wherein the first electrostatic discharge unit or the second electrostatic discharge unit of at least one electrostatic discharge module can be selected to output static electricity to one of the objects to be tested, and the first electrostatic discharge unit is different from the second electrostatic discharge unit.
2. The electrostatic discharge device of claim 1, wherein the second electrostatic discharge unit of each electrostatic discharge module is a human electrostatic discharge module, and the first electrostatic discharge unit of each electrostatic discharge module is a machine electrostatic discharge module.
3. The electrostatic discharge device of claim 1, wherein the first electrostatic discharge unit is connected in parallel with the second electrostatic discharge unit.
4. The electrostatic discharge device of claim 1, wherein the first electrostatic discharge unit of each electrostatic discharge module comprises a first power switch, a first storage and discharge unit and a first discharge switch, the first power switch is electrically connected between the high voltage source and the first storage and discharge unit, and the first discharge switch is electrically connected between the first storage and discharge unit and one of the objects to be tested.
5. The electrostatic discharge device of claim 4, wherein the second electrostatic discharge unit of each electrostatic discharge module comprises a second power switch, a second storage and discharge unit and a second discharge switch, the second power switch is electrically connected between the high voltage source and the second storage and discharge unit, and the second discharge switch is electrically connected between the second storage and discharge unit and one of the objects to be tested.
6. The ESD device of claim 1, further comprising a control unit electrically connected to the plurality of ESD modules, wherein the control unit selectively controls at least one of the first ESD unit and the second ESD unit of the ESD module to output static electricity to at least one of the objects.
7. The ESD apparatus of claim 6 wherein the control unit selectively controls one of the first ESD unit and the second ESD unit of the ESD module to output static electricity to the plurality of objects.
8. The electrostatic discharge device of claim 1, further comprising a monitor module, wherein the monitor module comprises a plurality of monitor units, each monitor unit being electrically connected between one of the electrostatic discharge modules and one of the objects to be tested; when one of the monitoring units receives that one of the first output electric quantity of the first electrostatic discharge unit or one of the second output electric quantity of the second electrostatic discharge unit of one of the electrostatic discharge modules is abnormal, the monitoring unit generates a first abnormal signal or a second abnormal signal.
9. The ESD device of claim 1 wherein the first ESD unit and the second ESD unit of each ESD module are connected in parallel.
10. The electrostatic discharge device of claim 7, wherein the second electrostatic discharge unit of each electrostatic discharge module is a human electrostatic discharge module, and the first electrostatic discharge unit of each electrostatic discharge module is a machine electrostatic discharge module; the first electrostatic discharge unit and the second electrostatic discharge unit of each electrostatic discharge module are connected in parallel; the first electrostatic discharge unit of each electrostatic discharge module comprises a first power-on switch, a first electricity storage and discharge unit and a first discharge switch, wherein the first power-on switch is electrically connected between the high-voltage source and the first electricity storage and discharge unit, and the first discharge switch is electrically connected between the first electricity storage and discharge unit and one of the objects to be tested; the second electrostatic discharge unit of each electrostatic discharge module comprises a second power-on switch, a second storage and discharge unit and a second discharge switch, wherein the second power-on switch is electrically connected between the high-voltage source and the second storage and discharge unit, and the second discharge switch is electrically connected between the second storage and discharge unit and one of the objects to be tested; the control unit can selectively switch the first power-on switch of the first electrostatic discharge unit of at least one electrostatic discharge module to start a charging mode, charge the first storage and discharge unit, or switch the second power-on switch of the second electrostatic discharge unit of at least one electrostatic discharge module to start a charging mode, and charge the second storage and discharge unit; the control unit can selectively switch the first discharge switch of the first electrostatic discharge unit or the second discharge switch of the second electrostatic discharge unit of at least one electrostatic discharge module to start a discharge mode so that the first storage discharge unit or the second storage discharge unit outputs static electricity to one of the objects to be detected; the plural electrostatic discharge modules are connected in parallel; the second electrostatic discharge unit of each electrostatic discharge module further comprises a resistor, and the resistor is electrically connected between the second discharge switch and one of the objects to be detected; the electrostatic discharge device further comprises a monitoring module, wherein the monitoring module comprises a plurality of monitoring units, and each monitoring unit is electrically connected between one of the electrostatic discharge modules and one of the objects to be tested; when each monitoring unit receives that the first output electric quantity of a first electrostatic discharge unit or the second output electric quantity of a second electrostatic discharge unit of one electrostatic discharge module is abnormal, the monitoring unit generates a corresponding first abnormal signal or a second abnormal signal; the monitoring unit sets a first output electric quantity reference value and a second output electric quantity reference value; when each monitoring unit receives that the electric quantity of the first output electric quantity of the first electrostatic discharge unit of one electrostatic discharge module is different from the first output electric quantity reference value, the monitoring unit generates the first abnormal signal; when one of the monitoring units receives that the electric quantity of the second output electric quantity of the second electrostatic discharge unit of one electrostatic discharge module is different from the second output electric quantity reference value, the monitoring unit generates the second abnormal signal; the plurality of monitoring units are respectively and electrically connected with the control unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111202449 | 2022-03-11 | ||
| TW111202449U TWM631001U (en) | 2022-03-11 | 2022-03-11 | Electrostatic discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219496430U true CN219496430U (en) | 2023-08-08 |
Family
ID=83783874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223392714.0U Active CN219496430U (en) | 2022-03-11 | 2022-12-16 | Electrostatic discharge device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219496430U (en) |
| TW (1) | TWM631001U (en) |
-
2022
- 2022-03-11 TW TW111202449U patent/TWM631001U/en unknown
- 2022-12-16 CN CN202223392714.0U patent/CN219496430U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TWM631001U (en) | 2022-08-21 |
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