CN109545777A - A kind of electrostatic protection device - Google Patents
A kind of electrostatic protection device Download PDFInfo
- Publication number
- CN109545777A CN109545777A CN201811623624.3A CN201811623624A CN109545777A CN 109545777 A CN109545777 A CN 109545777A CN 201811623624 A CN201811623624 A CN 201811623624A CN 109545777 A CN109545777 A CN 109545777A
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- annulus
- ground connection
- discharge
- cylinder
- tip
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- 239000004744 fabric Substances 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract description 14
- 230000002452 interceptive effect Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005421 electrostatic potential Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 231100001160 nonlethal Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
- H01L23/60—Protection against electrostatic charges or discharges, e.g. Faraday shields
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The present invention provides a kind of electrostatic protection device, including conducting wire, discharge tip, ground connection annulus or ground connection cylinder；The discharge tip is connect with conducting wire, and the conducting wire is passed through from the center of circle of ground connection annulus or the axle center of ground connection cylinder；The discharge tip is located in ground connection annulus or in the radial annulus of ground connection cylinder, and the radial direction annulus is parallel with the ground connection bottom surface of cylinder.The present invention greatly improves the success rate that point discharge induces static discharge by the way that a plurality of discharge channel is arranged.
Description
Technical field
The invention belongs to chip technology fields, more particularly to a kind of electrostatic protection device.
Background technique
IC chip is that the integrated circuit for forming a large amount of microelectronic component is placed on one piece of modeling base, is then made into one piece
Chip, now nearly all chip seen, can be called IC chip, with the continuous development of science and technology and constantly into
Step, IC chip has been widely used in the every field of our lives, but the control module of IC is easy to be quiet by access electric current
The influence of electricity, and then influence the performance of IC chip.
Since half a century, the accidents such as electrostatic catches fire caused by electronics industry, explodes are too numerous to enumerate.Only American Electronic row
Industry is as high as several hundred hundred million dollars because losing caused by electrostatic every year, and therefore, electrostatic protection is reducing loss, promoting quality and consumption
Have great importance in terms of efficiency.
With the rapid development and extensive use of conductor technology and integrated circuit industry, device small in size, integrated level is high
Part is more received by the market, and this demand also causes spacing between conducting wire smaller and smaller, and internal oxidation film is gradually thinning, while also leading
Cause influence of the device to electrostatic very sharp, so that some small voltages may puncture these electronic devices.And electronics produces
Generated electrostatic potential is but considerably beyond its pressure voltage during production, transport, storage and transhipment etc. are a series of for product, this is just
The breakdown or failure that may cause device, influence the reliability of product.So having to pay attention to the protection of electrostatic, fundamentally solve
Certainly this problem.
In electronics industry, influence of the energy of static discharge (ESD) for traditional devices is not easy to be discovered by people.But
For because route spacing it is short, route area is small and causes to reduce pressure, for the highly dense component that resistance to current capacity is reduced, ESD
Often become its fatal killer.
Static discharge can also cause more serious problem that may not be found when any part is tested since electrostatic is put
Device caused by electricity is inferior, if finding component failure in subsequent assembly, will lead to and does over again or replace caused by device
Increased costs.Once device fails in working site, repairing or renewal cost can find than the fabrication stage and solve the problems, such as institute
The expense needed spends more 100 times or more.After some electronic components are by electrostatic discharge damage, the certain performances of product are only shown
The decline of parameter, but entirely ineffective degree has not yet been reached, such as can not often it be found without comprehensively detecting.Such as set of digits
At the increase of circuit electric current incoming level after electrostatic discharge damage, will not be generally found in circuit function test；Or
Static discharge make product occur can self-healing breakdown or other non-lethal damages, but this effect can add up, to be formed
Potential hidden danger, catastrophic failure can occur in the case where continuing to use, and be not only difficult to expect but also can not screen in advance.
It is described to be used to that human body is isolated since semiconductor fingerprint extracting device surface is exposed in air in actual use
The insulating protective layer of skin surface and detecting electrode is only one layer of very thin protective film, and human body highest can be taken under normal conditions
Ten thousand volts of electrostatic potential (especially such case is very common under the dry environment in the north) is even crossed with several kilovolts, in this way, on
During stating fingerprint collecting, electrostatic potential can also be coupled to each detecting electrode by capacitor between each plate, using this
Detecting electrode is conducted to the internal pull-up circuit of sensor, and expendable destruction will be caused to semiconductor fingerprint extracting device.
Therefore, how to enhance antistatic protection function, be the key that semiconductor fingerprint extracting device enhance one's market competitiveness consideration point one of.
Summary of the invention
In order to solve the problems existing in the prior art, the present invention provides a kind of electrostatic protection device, has several electric discharges logical
Road improves the success rate that point discharge induces static discharge.
Electrostatic protection device provided by the invention, including conducting wire, discharge tip, ground connection annulus or ground connection cylinder；It is described to put
Electric tip is connect with conducting wire, and the conducting wire is passed through from the center of circle of ground connection annulus or the axle center of ground connection cylinder；The discharge tip position
In in ground connection annulus or in the radial annulus of ground connection cylinder, the radial direction annulus is parallel with the ground connection bottom surface of cylinder.Due to
Within the scope of the front end 180 degree of discharge tip, a plurality of discharge channel is formed between discharge tip and ground connection annulus or ground connection cylinder, greatly
The big success rate for improving electric discharge and inducing static discharge.
Discharge tip of the present invention is overlapped with the axis in the center of circle of ground connection annulus or ground connection cylinder or close coincidence.Electric discharge
Tip is corresponding to ground connection annulus or the radial annulus of ground connection cylinder, the axis in the center of circle or ground connection cylinder of discharge tip and ground connection annulus
Line is overlapped or close to being overlapped, so that free end of discharge tip is justified to ground connection in the range of 180 degree of the discharge tip in front of it
Ring or be grounded cylinder radial annulus semi-circular arc any point distance it is all equal or close to equal, if being consequently formed
The length of dry discharge channel is all equal or close to equal, greatly improves the success rate of point discharge induction static discharge, due to
The equal length of discharge channel or close to equal, discharge channel will not be illusory.
For the quantity for further increasing discharge channel, the ground connection annulus or the radial annulus for being grounded cylinder are interior with multiple
Discharge tip, multiple discharge tips are uniformly distributed in the circumferential direction of ground connection ground connection annulus or the radial annulus for being grounded cylinder, pass through
It is uniformly distributed, avoids interfering with each other between neighbouring discharge tip.
Ground connection annulus of the present invention is grounded in the radial annulus of cylinder with multiple discharge tips, multiple discharge tips
It is uniformly distributed in the circumferential direction of ground connection annulus or the radial annulus for being grounded cylinder.This electrostatic protection device, it is multiple by being arranged
Discharge tip, the shortest distance between the free end and the radial annulus of ground connection annulus or ground connection cylinder of each discharge tip is equal,
So that at least having multiple equidistant discharge channels, the success rate that point discharge induces static discharge is improved.
To avoid interfering with each other between neighbouring discharge tip, the discharge tip is in ground connection ground connection annulus or is grounded cylinder
It is uniformly distributed in the circumferential direction of radial annulus.
The quantity of the discharge tip is 4-8, and 4-8 discharge tip is arranged, on the one hand can guarantee discharge channel number
Amount improves electric discharge success rate, and on the other hand, 4-8 discharge tip can be preferably distributed in the circumferential, avoids neighbouring discharge sharp
Interfering with each other between end.
The invention also includes electric discharge annulus, electric discharge annulus and the ground connection annulus or ground connection cylinder concentric, the electric discharge
Annulus is connect with conducting wire, and on electric discharge annulus, discharge tip is connect by the annulus that discharges with conducting wire for the discharge tip setting, is led to
Setting electric discharge annulus is crossed, convenient for the arrangement of discharge tip.
To further increase the success rate that point discharge induces static discharge, along the length direction of the conducting wire, interval is set
It is equipped with multiple groups discharge tip.
To avoid interfering with each other, multiple groups discharge tip is uniformly distributed on the length direction of conducting wire.
Discharge tip of the invention corresponds to ground connection annulus or the circular arc for being grounded cylinder, can form a plurality of put between the two
Electric channel allows electrostatic induced current to discharge from arbitrary discharge channel, to improve the success rate that point discharge induces static discharge.This
Invention also passes through setting, so that the equal length with a plurality of discharge channel or close to equal, avoids making because of the distance of distance
It is illusory at channel.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is for discharge tip to ground connection cylinder apart from schematic diagram one；
Fig. 3 is for discharge tip to ground connection cylinder apart from schematic diagram two.
In figure: 1- conducting wire；2- insulation crust；3- annulus tip；4- is grounded cylinder；5- discharge channel；6- electric discharge annulus.
Specific embodiment
Embodiment one:
As shown in Figure 1, electrostatic protection device provided by the invention, including conducting wire 1, several discharge tips are connected on conducting wire 1
End.It is grounded cylinder 4 to be arranged outside conducting wire 1, conducting wire 1 is passed through from the axle center of ground connection cylinder 4, is had between discharge tip and ground connection cylinder
There is gap.The outer enclosure of ground connection cylinder 4 has insulation crust 2.Discharge tip is Chong Die with the ground connection axle center of cylinder 4 or approaches overlapping
(electronic component size is smaller, and discharge tip approximation is Chong Die with the ground connection axle center of cylinder 4.The present invention realizes overlapping as far as possible),
As shown in figure 3, the radial annulus of discharge tip to ground connection cylinder 4 is (with ground connection cylinder within the scope of the front end 180 degree of discharge tip
Bottom surface it is parallel) circular arc on each point be equidistant or close to equal.So set, make each discharge tip respectively with
Cylinder 4 is grounded to form discharge channel 40 (specific gap between discharge tip and ground connection cylinder, discharge channel 40 shown in figure is simultaneously
" lines " drawn in non-figure), and the distance of each discharge channel is equal.Utilize the corresponding ground connection cylinder of discharge tip
This arrangement so that all may be the discharge path of electrostatic electric arc in front of discharge tip within the scope of 180 °.Due to electric discharge
The increase in channel just improves the probalility of success of electrostatic induced discharge in turn, so that electrostatic induced current is easier to lead to by a plurality of electric discharge
Road and dissipate, while also can be further improved discharge tip and be grounded tip service life.It will be noted from fig. 1 that connecing
In the radial annulus of ground cylinder, multiple discharge tips are provided with, each discharge tip is located at the same radial annulus of ground connection cylinder
Interior, the distance of discharge tip to radial annulus is all equal；4-8 discharge tip can be set, discharge tip is radial circular
It is uniformly distributed in circumferential direction.
The present invention can also be arranged in this way: multiple discharge tips be arranged in the same radial annulus of ground connection cylinder, respectively
The shortest distance of discharge tip to radial annulus is all equal, in this way, a plurality of equidistant discharge channel can also be formed, improves
Static discharge success rate.
As shown in Figure 1, several discharge tips can arrange in the circumferential direction of ground connection cylinder 4, perfectly even arrange, forms one
Group, at the same time it can also arrange multiple groups along the length direction of conducting wire 1.The present invention can also further change ground connection cylinder 4
Into, have three groups of discharge tips in Fig. 1, every group of discharge tip forms annulus, can correspond to each annulus, be arranged one it is new
Annulus is grounded to replace ground connection cylinder 4, the annulus concentric that ground connection annulus and discharge tip are formed, in this way, in three groups of discharge tips
The external of end forms three groups of new ground connection annulus, this three groups new ground connection annulus replace ground connection cylinder, that is to say, that ground connection cylinder
If 4 are divided into stem portion.It is grounded annulus or ground connection cylinder 4 is grounded.
Embodiment two:
As shown in Figure 1, electrostatic protection device provided by the invention, including conducting wire 1, three groups of electric discharges circles are coupled on conducting wire 1
Ring 6, discharge annulus 6 arranged for interval, perfectly even arranged for interval on the length direction of conducting wire 1.Have in the circumferential direction of electric discharge annulus 6
There are several annulus tips 3, annulus tip 3 is preferably evenly arranged on electric discharge annulus 6.The discharge tip discharged on annulus 6 is general
Settable 4 to 8, discharge effect is relatively good, while can be to avoid interfering between each other.The outside of electric discharge annulus 6 is cased with
It is grounded cylinder 4, is grounded cylinder 4, the axle center for the annulus 6 that discharges is overlapped with conducting wire 1.It is grounded 4 covering of cylinder and insulation crust 2 is housed.?
Discharging between the annulus tip 3 and ground connection cylinder 4 of annulus 6, to form discharge channel 5 (specific empty between discharge tip and ground connection cylinder
Gap, discharge channel 5 shown in figure are not " lines " drawn in figure).As shown in figure 3, discharge tip setting is in electric discharge annulus
On, discharge tip is connect by the annulus that discharges with conducting wire 1；Within the scope of the 180 degree of the front end of discharge tip, discharge tip is to connecing
It is not completely equivalent at a distance from each point of the radial annulus (parallel with the bottom surface of ground connection cylinder 4) of ground cylinder 4, i.e. discharge channel 5
Length discrepancy.Multiple discharge tips are set on electric discharge annulus, in this way, each discharge tip is equal with the shortest distance of radial annulus
, a plurality of equidistant discharge channel can be equally formed, static discharge success rate is improved.
Since electronic component size is smaller, can as far as possible will electric discharge annulus do it is small so that discharge tip and ground connection
The axle center of cylinder 4 is close to being overlapped, in this way, discharge tip arrives the distance of each point of radial annulus close to equal, several of formation
Close to equal discharge channel.
The present invention can also further improve ground connection cylinder 4, have three groups of electric discharge annulus 6 in Fig. 1, can correspond to
In each electric discharge annulus 6, a new ground connection annulus is set to replace ground connection cylinder 4, in this way, in the outside of three groups of electric discharge annulus
Three groups of new ground connection annulus, ground connection annulus and electric discharge 6 concentric of annulus are formed, this three groups new ground connection annulus replace ground connection circle
Column, that is to say, that if ground connection cylinder 4 is divided into stem portion.It is grounded annulus or ground connection cylinder 4 is grounded.
Since the route that static discharge is walked not is all straight lines, so be easy to causeing connecing for discharge tip and front
The failure of discharge channel that ground part is constituted, and electrostatic can not be imported into ground terminal and dissipation electrostatic along ground.Electric discharge of the invention
Ground connection annulus or ground connection cylinder are cased with outside tip 3, discharge tip 3 can form a plurality of electric discharge road with ground connection annulus or ground connection cylinder
Diameter；Due to the electric discharge annulus and ground connection annulus or ground connection cylinder concentric where discharge tip 3, discharge tip 3 is in its front end
Within the scope of 180 °, the discharge channel formed between discharge tip and ground connection annulus is all equidistant, that is to say, that every electric discharge
The distance in path is all identical, without because distance causes channel illusory.Due to increasing for discharge channel, electrostatic induced current is allowed
It discharges from arbitrary discharge channel, to improve the success rate that point discharge induces static discharge.
Electrostatic protection device provided by the invention, electric discharge annulus, discharge tip, ground connection cylinder are all conductive made of metal
At.On the structure shown in figure 1, the left and right both ends of conducting wire 1 can be designed to two pins, the pin of left end and preventing for chip
Electrode connection is protected, the pin ground connection of right end can thus install electrostatic protection device provided by the invention as component
On any chip, electrostatic protection is realized.Electrostatic is exported through conducting wire, is let out from the discharge tip on electric discharge annulus through discharge channel
It puts.
Claims (9)
1. a kind of electrostatic protection device, it is characterised in that: including conducting wire, discharge tip, ground connection annulus or ground connection cylinder；It is described to put
Electric tip is connect with conducting wire, and the conducting wire is passed through from the center of circle of ground connection annulus or the axle center of ground connection cylinder；The discharge tip position
In in ground connection annulus or in the radial annulus of ground connection cylinder, the radial direction annulus is parallel with the ground connection bottom surface of cylinder.
2. electrostatic protection device as described in claim 1, it is characterised in that: the discharge tip and ground connection annulus the center of circle or
The axis for being grounded cylinder is overlapped or close coincidence.
3. electrostatic protection device as claimed in claim 2, it is characterised in that: the ground connection annulus or the radial direction circle for being grounded cylinder
There are multiple discharge tips, multiple discharge tips are uniformly divided in the circumferential direction of ground connection annulus or the radial annulus for being grounded cylinder in ring
Cloth.
4. electrostatic protection device as described in claim 1, it is characterised in that: including at least two discharge tips, each discharge tip
The shortest distance between the free end at end and the radial annulus of ground connection annulus or ground connection cylinder is equal.
5. electrostatic protection device as claimed in claim 4, it is characterised in that: the discharge tip is in ground connection ground connection annulus or connects
It is uniformly distributed in the circumferential direction of the radial annulus of ground cylinder.
6. the electrostatic protection device as described in claim 1-5 any claim, it is characterised in that: the number of the discharge tip
Amount is 4-8.
7. the electrostatic protection device as described in claim 1-5 any claim, it is characterised in that: it further include electric discharge annulus,
The annulus that discharges is connect with the ground connection annulus or ground connection cylinder concentric, the electric discharge annulus with conducting wire, and the discharge tip is set
It sets on electric discharge annulus, discharge tip is connect by the annulus that discharges with conducting wire.
8. the electrostatic protection device as described in claim 1-5 any claim, it is characterised in that: along the length of the conducting wire
Direction is arranged at intervals with multiple groups discharge tip.
9. electrostatic protection device as claimed in claim 8, it is characterised in that: multiple groups discharge tip is on the length direction of conducting wire
It is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623624.3A CN109545777A (en) | 2018-12-28 | 2018-12-28 | A kind of electrostatic protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623624.3A CN109545777A (en) | 2018-12-28 | 2018-12-28 | A kind of electrostatic protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109545777A true CN109545777A (en) | 2019-03-29 |
Family
ID=65857307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811623624.3A Pending CN109545777A (en) | 2018-12-28 | 2018-12-28 | A kind of electrostatic protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109545777A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473963A (en) * | 2018-12-28 | 2019-03-15 | 江苏邦融微电子有限公司 | A kind of electrostatic protection structure |
| CN110433315A (en) * | 2019-09-06 | 2019-11-12 | 河南普润仪器设备有限公司 | A kind of Electronics Factory's dust-free workshop sterilizing unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH38968A (en) * | 1907-01-22 | 1908-01-16 | Henry Chapman William | Device for neutralizing static electricity charged with organs or materials in strips, wires, etc., moving at a certain speed |
| CN1464604A (en) * | 2002-06-03 | 2003-12-31 | 蒙里声 | Annular point discharge tube current limiter |
| CN1536723A (en) * | 2003-04-06 | 2004-10-13 | 蒙里声 | Ar diffusing thunder dispeller |
| KR20050059686A (en) * | 2003-12-15 | 2005-06-21 | 주식회사 팬택 | Structure for discharging static electricity of mobile commucation terminal |
| CN201247900Y (en) * | 2008-07-15 | 2009-05-27 | 李忠晓 | Thunder-lightning-resistance and overvoltage-resistance union joint |
| TW200931616A (en) * | 2008-01-10 | 2009-07-16 | Ind Tech Res Inst | Electrostatic discharge protection structures |
| CN102331644A (en) * | 2011-06-17 | 2012-01-25 | 深圳市华星光电技术有限公司 | Electrostatic discharge protecting device of liquid crystal display |
| US20140185179A1 (en) * | 2013-01-03 | 2014-07-03 | Charles Eugene Simon | Self-contained static electricity drain |
| CN207517911U (en) * | 2017-12-20 | 2018-06-19 | 湖北继扬电力科技有限公司 | A kind of multiple-pin type hollow horizontal grounding body |
| CN209150108U (en) * | 2018-12-28 | 2019-07-23 | 江苏邦融微电子有限公司 | A kind of electrostatic protection device |
-
2018
- 2018-12-28 CN CN201811623624.3A patent/CN109545777A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH38968A (en) * | 1907-01-22 | 1908-01-16 | Henry Chapman William | Device for neutralizing static electricity charged with organs or materials in strips, wires, etc., moving at a certain speed |
| CN1464604A (en) * | 2002-06-03 | 2003-12-31 | 蒙里声 | Annular point discharge tube current limiter |
| CN1536723A (en) * | 2003-04-06 | 2004-10-13 | 蒙里声 | Ar diffusing thunder dispeller |
| KR20050059686A (en) * | 2003-12-15 | 2005-06-21 | 주식회사 팬택 | Structure for discharging static electricity of mobile commucation terminal |
| TW200931616A (en) * | 2008-01-10 | 2009-07-16 | Ind Tech Res Inst | Electrostatic discharge protection structures |
| CN201247900Y (en) * | 2008-07-15 | 2009-05-27 | 李忠晓 | Thunder-lightning-resistance and overvoltage-resistance union joint |
| CN102331644A (en) * | 2011-06-17 | 2012-01-25 | 深圳市华星光电技术有限公司 | Electrostatic discharge protecting device of liquid crystal display |
| US20140185179A1 (en) * | 2013-01-03 | 2014-07-03 | Charles Eugene Simon | Self-contained static electricity drain |
| CN207517911U (en) * | 2017-12-20 | 2018-06-19 | 湖北继扬电力科技有限公司 | A kind of multiple-pin type hollow horizontal grounding body |
| CN209150108U (en) * | 2018-12-28 | 2019-07-23 | 江苏邦融微电子有限公司 | A kind of electrostatic protection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473963A (en) * | 2018-12-28 | 2019-03-15 | 江苏邦融微电子有限公司 | A kind of electrostatic protection structure |
| CN110433315A (en) * | 2019-09-06 | 2019-11-12 | 河南普润仪器设备有限公司 | A kind of Electronics Factory's dust-free workshop sterilizing unit |
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