CN107799248A - A kind of static suppressor with overcurrent protection function - Google Patents
A kind of static suppressor with overcurrent protection function Download PDFInfo
- Publication number
- CN107799248A CN107799248A CN201711093804.0A CN201711093804A CN107799248A CN 107799248 A CN107799248 A CN 107799248A CN 201711093804 A CN201711093804 A CN 201711093804A CN 107799248 A CN107799248 A CN 107799248A
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- electrode
- layer
- ceramic substrate
- pressure sensitive
- overcurrent protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/13—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material current responsive
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a kind of static suppressor with overcurrent protection function, semi-conducting material and thick film print technology is taken to be combined, in layer of pressure sensitive of the electrode grooving position printing with skeleton structure, when the voltage for the size for applying the regulation above between outer electrode produces electric discharge between the electrode at cutting gap position, mainly along the layer of pressure sensitive internal discharge of skeleton structure, because the gap of tip and function slurry for loose skeleton structure formation be present in grooving position electrode, easily cause the movement of electronics, electric discharge phenomena can more effectively be produced, improve ESD responses, it is easily adjusted and stablizes ESD characteristics.Ceramic base plate surface of the electrode print after burning till, sintering will not cause electrode deformation, simple production process, low manufacture cost after cutting.
Description
Technical field
The present invention relates to electrostatic protection technical field, particularly relates to a kind of electrostatic with overcurrent protection function and suppresses
Device.
Background technology
Electrostatic is that one kind is present in body surface, reflects its positive and negative charge unbalanced phenomenon in subrange, it
Mainly by the contact of material with separating, electrostatic induction, dielectric polorization and charged particle attachment etc. physical process produce, performance
Higher for voltage, the duration is very short, releases energy the features such as not strong.With the development of rapid photo detector, constantly lifting
Awareness of safety promote and expand the development of over-current over-voltage protection product, in product design, not only to ensure circuitry
Performance requirement, even more to focus on their security feature.Electronic system is often disturbed by extraneous factor, such as break-make sense
Property load or start and stop high power load, line fault, thunder and lightning etc. cause instantaneous overvoltage or overcurrent phenomenon, they are for electronics
The trouble free service of system has serious harm, gently then causes equipment fault, signal interruption；It is heavy then cause equipment and cable to burn, endanger
And the safety of operating personnel, lead to major accident.So generally require design anti-surge protective device to electronic equipment and
Transmission line of electricity carries out overvoltage, the protection of two aspects of excessively stream.Traditional overcurrent protection needs serial fuse structure in circuit,
Cause metal bath exothermic melting and disconnecting circuit using overload current；Equally, traditional overvoltage protection is in parallel with shunting mode
Over-voltage protection element is realized, typically by surge voltage and the earth short circuit, surge current is diverted into ground, is reached weakening and is eliminated
Overvoltage, the purpose of overcurrent, so as to play a part of protecting electronic equipments safety operation.But these discrete excessively streams and overvoltage
Protection device also there are many defects in addition to defencive function is single, and as response speed is slower, reliability and stability are poor
Deng；On the other hand, as the continuous enhancing of electronic functionalities, the density of its internal component are also constantly rising, so as to want
The component with identical operating current, voltage and resistance to stream grade is asked further to reduce its size.Protection element city at present
Field is just tending to modularization, miniaturization, high-power and the developing direction of over-voltage and over-current integration.
The content of the invention
In order to solve problem above, the invention provides a kind of static suppressor with overcurrent protection function, specific bag
Ceramic substrate and the layer of pressure sensitive, glassy layer, encapsulated layer and the table electrode that are arranged on the ceramic substrate are included, wherein described
Table electrode is printed on the upper surface of ceramic substrate by resinate slurry, and the table electrode specifically includes two and is oppositely arranged
Interior electrode, with the end termination electrode being connected of each interior electrode and the cutting gap being arranged between two interior electrodes；Institute
State and layer of pressure sensitive is filled up in cutting gap, the glassy layer is printed on the layer of pressure sensitive and the pottery by glass paste
The upper surface of porcelain substrate, the encapsulated layer are coated on the upper surface of the glassy layer and the ceramic substrate；Also include by resin
The back of the body conductive electrode that hydrochlorate slurry sintering forms, the back of the body conductive electrode are arranged on the lower surface of the ceramic substrate；Also include in copper
Layer electrode, tin coating and nickel coating, copper internal layer electrode, tin coating and the nickel coating are device conducts terminal, connect the table
Electrode and the back of the body conductive electrode.
The width of the cutting gap is 20-30um.
The ceramic substrate is aluminium oxide ceramic substrate, and the encapsulated layer is epoxy resin layer.
The glass paste is flint glass slurry.
Using having the beneficial effect that for the application, first, electrostatic induced current can not only be absorbed using the suppressor, clamp work
The voltage of circuit, prevents it to be damaged due to voltage overload, moreover it is possible to the quick response when electrostatic occurs, in the same of protection circuit
When, self structure can not be damaged；Secondly, using the structure design, the thickness of suppressor can be reduced, and electrode print is burning
Ceramic base plate surface after, electrode deformation will not be caused by being sintered after cutting, simple production process, low manufacture cost,.
Brief description of the drawings
Fig. 1 is the structural representation of the static suppressor of the present invention with overcurrent protection function；
Fig. 2 is a kind of floor map of table electrode.
Embodiment
Illustrate embodiments of the present invention with reference to the accompanying drawings and examples, those skilled in the art can be by this specification institute
The content of exposure understands other advantages and effect of the present invention easily.The present invention can also pass through specific implementations different in addition
Mode is embodied or practiced, and the various details in this specification can also be based on different viewpoints and application, without departing from this
Various modifications or alterations are carried out under the spirit of invention.
As shown in Figure 1 to Figure 2, to meet a kind of static suppressor with overcurrent protection function of the present embodiment, including
Ceramic substrate 5 and layer of pressure sensitive 1, glassy layer 2, encapsulated layer 3 and the table electrode 4 being arranged on the ceramic substrate 5, wherein
The table electrode 4 is printed on the upper surface of ceramic substrate 5 by resinate slurry, and the table electrode 4 specifically includes two phases
Interior electrode 41 to setting, the termination electrode 42 being connected with the end of each interior electrode 41 and be arranged on two interior electrodes 41 it
Between cutting gap 43；The layer of pressure sensitive 1 is filled in the cutting gap 43, and the glassy layer 2 passes through glass paste
The upper surface of the layer of pressure sensitive 1 and the ceramic substrate 5 is printed on, the encapsulated layer 3 is coated on the glassy layer 2 and institute
State the upper surface of ceramic substrate 5.Wherein described interior electrode 41 is by variform, and simply one of which is preferably implemented in accompanying drawing 2
Mode, but due to the common knowledge that it is those skilled in the art, therefore here is omitted.
The layer of pressure sensitive 1 is preferably function slurry, and the function slurry includes ceramic material, metal material, partly led
Body material and glass powder, wherein the ceramic material is aluminum oxide, the metal material is Ni powder, Fe powder, Cu powder, Al powder
In one or more, the semi-conducting material is zinc oxide, carborundum, the one or more in titanium carbide, the glass
Glass powder is leaded microcrystalline glass powder.It is semiconductor material preferably using the spherical ZnO of doping for convenience of the scattered of inorganic particle
Material.To reduce electric leakage and the oxidation of metal-powder caused by conductive powder body in layer of pressure sensitive 1, preferably using multiple parcel
Metal-powder.By using the glass powder in layer of pressure sensitive 1, multiple material can be mixed to be formed it is a kind of compound
Functional material, using the intrinsic skeleton structure of crystallization glass, material is formed stable loose and porous structure, facilitate electronics to exist
The movement of layer of pressure sensitive 1, improve ESD performance.
The present embodiment also includes the back of the body conductive electrode 7 formed by resinate slurry sintering, and the back of the body conductive electrode 7 is arranged on institute
State the lower surface of ceramic substrate 5.
The present embodiment also includes copper internal layer electrode, tin coating and nickel coating, copper internal layer electrode, tin coating and the nickel coating
For device conducts terminal 6, the table electrode 4 and the back of the body conductive electrode 7 are connected.
Preferably, the width of the cutting gap 43 is 20-30um.It is further preferable that the width of the cutting gap 43
For 25um.
Preferably described ceramic substrate 5 is aluminium oxide ceramic substrate 5, and the encapsulated layer 3 is epoxy resin layer, the glass
Slurry is flint glass slurry.
The static suppressor with overcurrent protection function described in the present embodiment, takes semi-conducting material and thick film screen printing work
Skill is combined, electrode grooving position printing with skeleton structure layer of pressure sensitive 1, when between outer electrode apply regulation with
On size voltage and between the electrode at the position of cutting gap 43 produce electric discharge, mainly along the pressure sensitive of skeleton structure
1 internal discharge of layer, it is the gap that loose skeleton structure is formed because grooving position electrode has tip and function slurry, easily
Cause the movement of electronics, can more effectively produce electric discharge phenomena, improve ESD responses.Accordingly, it is capable to reduce because between sparking electrode
Spacing bias caused by ESD responses variation.Thus, it is easily adjusted and stablizes ESD characteristics.Electrode print is after burning till
The surface of ceramic substrate 5, sintering will not cause electrode deformation after cutting, using the higher Ag/Pd electrodes of hardness and sintering temperature,
The stability of electrode can be improved.The cover glass layer 2 of ceramic substrate 5, can preferably protect the skeleton structure of layer of pressure sensitive 1 with
And influence of the isolation moisture to layer of pressure sensitive 1.The consistency of device is further improved using the encapsulating material of epoxy resin,
Machine friction, the extruding damage to caused by device are reduced, so as to improve the reliability and stability of ceramic ESD device.
Claims (4)
- A kind of 1. static suppressor with overcurrent protection function, it is characterised in that：Including ceramic substrate and it is arranged on the pottery Layer of pressure sensitive, glassy layer, encapsulated layer and table electrode on porcelain substrate, wherein the table electrode is printed by resinate slurry For brush in the upper surface of ceramic substrate, the table electrode specifically includes two interior electrodes being oppositely arranged and each interior electrode End connection termination electrode and the cutting gap that is arranged between two interior electrodes；Pressure sensitive is filled up in the cutting gap Layer, the glassy layer are printed on the upper surface of the layer of pressure sensitive and the ceramic substrate, the encapsulating by glass paste Layer is coated on the upper surface of the glassy layer and the ceramic substrate；The back of the body for also including being formed by resinate slurry sintering is conductive Pole, the back of the body conductive electrode are arranged on the lower surface of the ceramic substrate；Also include copper internal layer electrode, tin coating and nickel coating, institute It is device conducts terminal to state copper internal layer electrode, tin coating and nickel coating, connects the table electrode and the back of the body conductive electrode.
- 2. there is the static suppressor of overcurrent protection function as claimed in claim 1, it is characterised in that：The cutting gap Width is 20-30um.
- 3. there is the static suppressor of overcurrent protection function as claimed in claim 1, it is characterised in that：The ceramic substrate is Aluminium oxide ceramic substrate, the encapsulated layer are epoxy resin layer.
- 4. there is the static suppressor of overcurrent protection function as claimed in claim 1, it is characterised in that：The glass paste is Flint glass slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711093804.0A CN107799248A (en) | 2017-11-08 | 2017-11-08 | A kind of static suppressor with overcurrent protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711093804.0A CN107799248A (en) | 2017-11-08 | 2017-11-08 | A kind of static suppressor with overcurrent protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107799248A true CN107799248A (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711093804.0A Pending CN107799248A (en) | 2017-11-08 | 2017-11-08 | A kind of static suppressor with overcurrent protection function |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345994A (en) * | 2013-07-09 | 2013-10-09 | 南京萨特科技发展有限公司 | Electrostatic suppressing element and production method thereof |
| CN103943291A (en) * | 2014-02-21 | 2014-07-23 | 南京萨特科技发展有限公司 | Static suppressor with overcurrent protection functions, and manufacturing method thereof |
| CN104600568A (en) * | 2015-02-12 | 2015-05-06 | 苏州晶讯科技股份有限公司 | Ceramic ESD (electro-static discharge) suppressor and production method thereof |
-
2017
- 2017-11-08 CN CN201711093804.0A patent/CN107799248A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345994A (en) * | 2013-07-09 | 2013-10-09 | 南京萨特科技发展有限公司 | Electrostatic suppressing element and production method thereof |
| CN103943291A (en) * | 2014-02-21 | 2014-07-23 | 南京萨特科技发展有限公司 | Static suppressor with overcurrent protection functions, and manufacturing method thereof |
| CN104600568A (en) * | 2015-02-12 | 2015-05-06 | 苏州晶讯科技股份有限公司 | Ceramic ESD (electro-static discharge) suppressor and production method thereof |
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Application publication date: 20180313 |