CN101662879A - Electrostatic defending device - Google Patents
Electrostatic defending device Download PDFInfo
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- CN101662879A CN101662879A CN200810198128A CN200810198128A CN101662879A CN 101662879 A CN101662879 A CN 101662879A CN 200810198128 A CN200810198128 A CN 200810198128A CN 200810198128 A CN200810198128 A CN 200810198128A CN 101662879 A CN101662879 A CN 101662879A
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- discharge
- protection apparatus
- electrostatic protection
- weld part
- discharge part
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Abstract
The invention relates to an electrostatic defending device which can be selectively provided with an electronic element with a first end and a second end. The electrostatic defending device comprisesa first welding part, a second welding part, a first discharge part and a second discharge part, wherein the first welding part provides the selective connection of the first end of the electronic element; the second welding part provides the selective connection for the second end of the electronic element; the first discharge part is clockwise rotated for an angle and connected to the first welding part; the second discharge part is anticlockwise rotated for the angle and connected to the second welding part and corresponds to the first discharge part so as to form a discharge path; and thestatic electricity of the first welding part is dissipated to the second welding part through the discharge path.
Description
Technical field
The present invention relevant a kind of electrostatic protection apparatus, particularly a kind of electrostatic protection apparatus of configurable electronic component.
Background technology
Known techniques is at circuit layout (layout), same assembly welding contact in circuit can be provided with different elements usually, makes element overlay in same assembly welding contact, and the mode of adopt selecting makes one of them element running, and other element that overlaps on it then lost efficacy.Adopt the benefit of element overlay configuration to be that different sometimes circuit layouts often has only a fraction of element to do a little change, this moment is not if adopt the element overlay configuration, then must be at monoblock circuit board layout again, and increase the design cost of circuit layout.If but adopted the element overlay configuration, just can utilize the mode of selection to make to overlap the element activation/anergy (enable/disable) on it, would so promptly finish the action of change element, and must rewiring, and then save the design cost of circuit layout.
Circuit layout is along with manufacture of semiconductor and single-chip development of technology, add electronic product (particularly hand-held electronic product) gradually the trend towards miniaturization stride forward, make that the static discharge phenomenon in the circuit is showing more.And static discharge is the main cause that causes most of electronic components or electronic system to destroy, and the destruction of this kind static can be caused the damage of semiconductor element, thereby influences the function of integrated circuit, makes electronic product lose effect.With the integrated circuit is example, and the voltage of being supplied with in the general integrated circuit is about 5 volts, 3.3 volts or lower.Yet the electrostatic potential that electrostatic phenomenon produced can be up to thousands of volt, tens thousand of volt or higher, thereby has suitable destructiveness.Also because static discharge in instantaneous, can produce so big electric current, so the protection of static discharge is very important in the circuit.
Adopt the principle of point discharge to realize at release electrostatic in the known techniques more, its practice is with the corresponding setting of two conductor tip, utilize this structure and produce the point discharge effect, rapid electrostatic current is imported the earth terminal of circuit, and prevent that element in the circuit from suffering the destruction of static and lost efficacy.
At the situation of element overlay configuration in the circuit layout,, can on same assembly welding contact, dispose discharge tip usually in order to reach the function of electrostatic defending.When this assembly welding contact in order to as electrostatic defending the time, then discharge tip is not coated with insulating varnish, and this assembly welding contact is unworthy of putting other electron component, so can utilize discharge tip to bring in discharge, and reach the function of electrostatic defending.Relative, if this assembly welding contact is non-in order to make electrostatic defending in circuit layout, the discharge tip that dispose on it this moment can be coated with full insulating varnish, makes it lose the function of point discharge, and can on this assembly welding contact, dispose other electron component, and realize the function of other electron component.
Yet, fooled this assembly welding contact of known techniques just can't dispose electronic component on the pad on the same group as the time spent of static discharge, and electronic component then must be disposed by another assembly welding contact, and cause the increase of pad in the circuit, and then the expenditure that raises the cost.Moreover, work as the discharge tip that pad disposed in the known techniques and do not do static discharge, and dispose other electron component simultaneously, when element is crossed the tin stove, be easy to generate the situation of overflowing tin and causing short circuit or element drift.
Therefore, how to solve in the circuit layout of known techniques, the problem that the electrostatic protection apparatus of electronic component overlapping configuration is derived is a subject under discussion that needs to be resolved hurrily.
Summary of the invention
In view of this present invention proposes a kind of electrostatic protection apparatus.Utilize device proposed by the invention,, and when utilizing the point discharge effect to reach the function of dissipation static, can dispose other electron component simultaneously, and allow this electronic component running in this bond pads portion when weld part configuration discharge part.So, will make full use of weld part, the quantity that reaches weld part reduces than known techniques, and then saves the cost that is provided with of weld part.Moreover, by the coating method of the insulating varnish that changes discharge part, more can improve the situation of overflow tin or element drift.
The present invention proposes a kind of electrostatic protection apparatus, and alternative configuration has one of first end and second end electronic component, and this electrostatic protection apparatus comprises: first weld part, second weld part, first discharge part and second discharge part.First weld part provides the first end selectivity of electronic component to connect.Second weld part provides the second end selectivity of electronic component to connect.First discharge part turns clockwise an angle and is connected in first weld part.Second discharge part is rotated counterclockwise this angle and is connected in second weld part, and is corresponding with first discharge part and form discharge path, and the static of first weld part is dissipated to second weld part by discharge path.
The present invention also proposes a kind of electrostatic protection apparatus, and configurable have one of first end and second end electronic component, and this electrostatic protection apparatus comprises: first weld part, second weld part, first discharge part, second discharge part.First weld part provides first end of electronic component to connect.Second weld part provides second end of electronic component to connect.At least one first discharge part, each first discharge part are offset the center line of first weld part and turn clockwise an angle and be connected to first weld part.At least one second discharge part, each second discharge part is offset the center line of second weld part and is rotated counterclockwise this angle and is connected in second weld part, corresponding with each first discharge part respectively and form discharge path, and the static of first weld part is dissipated to second weld part by discharge path.
Description of drawings
Fig. 1 is the first embodiment schematic diagram of electrostatic protection apparatus;
Fig. 2 is the schematic diagram that electronic component is connected with first embodiment;
Fig. 3 is the second embodiment schematic diagram of electrostatic protection apparatus;
Fig. 4 is the schematic diagram that electronic component is connected with second embodiment;
Fig. 5 A is the schematic diagram () that electronic component is connected with the 3rd embodiment;
Fig. 5 B is the schematic diagram (two) that electronic component is connected with the 3rd embodiment.
Embodiment
Please refer to Fig. 1, this figure is depicted as the first embodiment schematic diagram of electrostatic protection apparatus.Electrostatic protection apparatus proposed by the invention comprises: first weld part 10, second weld part 20, first discharge part 30, second discharge part 40.
By as can be known shown in Figure 1, first discharge part 30 angle that turns clockwise, and be connected in first weld part 10.The same angle of second discharge part, 40 rotations, be that with the difference part of first discharge part 30 second discharge part 40 is for being rotated counterclockwise, both direction of rotation are opposite, so can allow first discharge part 30 and both tips of second discharge part 40 can be in correspondence with each other, and form a discharge path 50.Second discharge part 40 that rotates after this angle is connected in second weld part 20, and with first discharge part, 30 corresponding formation discharge paths 50, and the static of first weld part 10 dissipated to second weld part 20 by discharge path 50.Wherein, first discharge part 30 and second discharge part 40 angle of being rotated is an acute angle.
In this, more comprise earth terminal 60, be connected in second weld part 20 or second discharge part 40.Because the secondth discharge part 40 and two weld parts 20 are connected to each other, so earth terminal 60 is connected in second weld part 20 or second discharge part, 40 effect unanimities.So, can allow the static that circulates in first weld part 10 see through discharge path 50 and import second discharge part, 40 to two weld parts 20, be melt into earth terminal 60 at last.
Please refer to the schematic diagram that Fig. 2 is connected with first embodiment for electronic component.Electronic component 70 can be any electronic component in the circuit, for example: piezo-resistance (varistor), electric capacity etc.Electronic component 70 has first end 72 and second end 74, when electronic component 70 is desired with first weld part 10 and the 20 overlapping configurations of second weld part, first weld part 10 provides first end 72 of electronic component 70 to connect, and second weld part 20 provides second end 74 of electronic component 70 to connect.At this moment, first discharge part 30 and second discharge part 40, and electronic component 70 just overlaps and is disposed on first weld part, 10 second weld parts 20.Because first discharge part 30 and second discharge part 40 after relative respectively rotation one angle, just are connected in first weld part 10 and second weld part 20 respectively, therefore formed discharge path 50 can deflects electrons element 70.That is to say, when first discharge part 30 and second discharge part 40 when carrying out static discharge, the discharge path 50 that static is flowed through can't pass through electronic component 70, so electronic component 70 can not damage because of static discharge.So, in same bond pads portion (first weld part, 10 second weld parts 20 just), can dispose first discharge part 30 and second discharge part 40 simultaneously, and electronic component 70, and can bring into play its function separately, and do not interact, and then weld part is made full use of, save the deployment cost of weld part in the circuit.
Moreover, by as can be known shown in Figure 2, first discharge part, 30 surface coated one deck insulating varnish (representing with dot area among the figure), but it is noted that first discharge part 30 is connected part with first weld part 10, and first discharge tip, 32 neither coating insulating varnish.Same, second discharge part, 40 surfaces also are coated with one deck insulating varnish (representing with dot area among the figure), and second discharge part 40 is connected part with second weld part 20, and second discharge tip, 42 neither coating insulating varnish.Insulating varnish coating method so, allow first discharge tip 32 and second discharge tip 42 still can utilize the point discharge effect except reaching, and outside the dissipation static, more can allow above-mentioned electrostatic protection apparatus the time by the tin stove, can not produce the situation of overflow tin or element drift, cause description is as follows.
Please refer to Fig. 3, this figure is depicted as the second embodiment schematic diagram of electrostatic protection apparatus.The difference part of second embodiment and first embodiment is, in order to reach better static discharge effect, increases many discharge paths in second embodiment, and therefore the quantity of first discharge part 30 and second discharge part 40 increases simultaneously.
In addition, discharge part and weld part is connected that also some elementary errors is different.Wherein, the center line of each first discharge part 30 skew, first weld part 10 then turns clockwise an angle and is connected to first weld part 10.Identical, each second discharge part 40 is center lines of skew second weld parts 20 equally, and then same this angle of rotation is that with first discharge part, 30 differences the direction of rotating is counterclockwise, is connected to second weld part 20 afterwards.Wherein, first discharge part 30 and second discharge part 40 angle of being rotated is an acute angle.First discharge part 30 is opposite with second discharge part 40 direction of rotation between the two, can allow first discharge tip 32 of each first discharge part 30 and second discharge part 40 second discharge tip 42 in correspondence with each other, and form many discharge path 50 respectively.So, the static of first weld part 10 of flowing through just can be by one or more discharge path 50 wherein, and with electrostatic dissipation to the second weld part 20.Wherein, earth terminal 60 can be connected in second weld part 20 or second discharge part 40.
Please refer to Fig. 4, can find out the schematic diagram that electronic component 70 is connected with above-mentioned second embodiment.Because, after each first discharge part 30, second discharge part 40 are offset the center line of first weld part 10, second weld part 20 all earlier among second embodiment, just rotate relative angle and then be connected in first weld part 10, second weld part 20.Therefore, can know discovery by Fig. 4, discharge path 50 is deflects electrons element 70 more, makes first discharge part 30 and second discharge part 40 when carrying out static discharge, the discharge path 50 that static is flowed through is more guaranteed can not pass through electronic component 70, thereby electronic component 70 can not damage because of static discharge.
Among above-mentioned second embodiment, be that example explains, but its quantity can manyly also can have only one not as limit, can be provided with according to actual demand with two first discharge parts 30 and second discharge part 40.Shown in Fig. 5 A and Fig. 5 B, i.e. expression has only the situation of one first discharge part 30 and the 40 corresponding settings of second discharge part respectively.Be with the difference part of first embodiment, the center line of first discharge part 30 and second discharge part, 40 skews, first weld part 10, second weld part 20, so can allow the discharge path 50 of first weld part 10 and 20 corresponding formation of second weld part, skew overlaps electronic component 70 on it is set more.Make and win discharge part 30 and second discharge part 40 when carrying out static discharge, more be difficult for influencing electronic component 70.So, when first weld part 10 and second weld part 20 are provided with first discharge part 30 and second discharge part 40 respectively and carry out electrostatic defending, electronic component 70 can be set simultaneously on first weld part 10 and second weld part 20 more, and allow the electronic component normal operation.
Though technology contents of the present invention discloses as above with preferred embodiment, so it is not in order to limiting the present invention, anyly has the knack of this skill person, does a little change and retouching in the spirit that does not break away from the present invention, all should be covered by in the category of the present invention.
Claims (18)
1. electrostatic protection apparatus, alternative configuration has one of one first end and one second end electronic component, it is characterized in that this electrostatic protection apparatus comprises:
One first weld part provides this first end selectivity of this electronic component to connect;
One second weld part provides this second end selectivity of this electronic component to connect;
One first discharge part turns clockwise an angle and is connected in this first weld part; And
One second discharge part is rotated counterclockwise this angle and is connected in this second weld part, and is corresponding with this first discharge part and form a discharge path, and the static of this first weld part is dissipated to this second weld part by this discharge path.
2. electrostatic protection apparatus according to claim 1 is characterized in that, this angle is an acute angle.
3. electrostatic protection apparatus according to claim 1 is characterized in that, the shape of this first discharge part is selected from taper, triangle and group that needle-like constituted.
4. electrostatic protection apparatus according to claim 1 is characterized in that, the shape of this second discharge part is selected from taper, triangle and group that needle-like constituted.
5. electrostatic protection apparatus according to claim 1, it is characterized in that, this first discharge part has one first discharge tip, and this second discharge part has one second discharge tip, and this first discharge tip and this second discharge tip are positioned at this discharge path in correspondence with each other.
6. as the electrostatic protection apparatus as described in the claim 5, it is characterized in that this first discharge part is coated with an insulating varnish, but this first discharge part is connected part and this insulating varnish of the neither coating of this first discharge tip with this first weld part.
7. as the electrostatic protection apparatus as described in the claim 5, it is characterized in that this second discharge part is coated with an insulating varnish, but this second discharge part is connected part and this insulating varnish of the neither coating of this second discharge tip with this second weld part.
8. electrostatic protection apparatus according to claim 1 is characterized in that, more comprises:
One earth terminal is connected in this second weld part.
9. electrostatic protection apparatus according to claim 1 is characterized in that, more comprises:
One earth terminal is connected in this second discharge part.
10. electrostatic protection apparatus, configurable have one of one first end and one second an end electronic component, it is characterized in that this electrostatic protection apparatus comprises:
One first weld part provides this first end of this electronic component to connect;
One second weld part provides this second end of this electronic component to connect;
At least one first discharge part, each this first discharge part are offset the center line of this first weld part and turn clockwise an angle and be connected to this first weld part; And
At least one second discharge part, each this second discharge part is offset the center line of this second weld part and is rotated counterclockwise this angle and is connected in this second weld part, this first discharge part is corresponding and form a discharge path with each respectively, and the static of this first weld part is dissipated to this second weld part by this discharge path.
11. the electrostatic protection apparatus as claim 10 is characterized in that, this angle is an acute angle.
12. the electrostatic protection apparatus as claim 10 is characterized in that, the shape of each this first discharge part is selected from taper, triangle and group that needle-like constituted.
13. the electrostatic protection apparatus as claim 10 is characterized in that, the shape of each this second discharge part is selected from taper, triangle and group that needle-like constituted.
14. electrostatic protection apparatus as claim 10, it is characterized in that, each this first discharge part has one first discharge tip, and each this second discharge part has one second discharge tip, and each this first discharge tip and each this second discharge tip lay respectively at this discharge path in correspondence with each other.
15. the electrostatic protection apparatus as claim 14 is characterized in that, each this first discharge part is coated with an insulating varnish, but each this first discharge part is connected part and this insulating varnish of the neither coating of each this first discharge tip with this first weld part.
16. the electrostatic protection apparatus as claim 14 is characterized in that, each this second discharge part is coated with an insulating varnish, but each this second discharge part is connected part and this insulating varnish of the neither coating of each this second discharge tip with this second weld part.
17. the electrostatic protection apparatus as claim 10 is characterized in that, more comprises:
One earth terminal is connected in this second weld part.
18. the electrostatic protection apparatus as claim 10 is characterized in that, more comprises:
One earth terminal is connected in this second discharge part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810198128A CN101662879B (en) | 2008-08-29 | 2008-08-29 | Electrostatic defending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810198128A CN101662879B (en) | 2008-08-29 | 2008-08-29 | Electrostatic defending device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101662879A true CN101662879A (en) | 2010-03-03 |
| CN101662879B CN101662879B (en) | 2012-08-29 |
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ID=41790547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810198128A Expired - Fee Related CN101662879B (en) | 2008-08-29 | 2008-08-29 | Electrostatic defending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101662879B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231937A (en) * | 2011-06-13 | 2011-11-02 | 冠捷显示科技（厦门）有限公司 | Electronic static discharge (ESD) prevention circuit board for interface devices |
| CN107493649A (en) * | 2017-09-04 | 2017-12-19 | 广东美的暖通设备有限公司 | A kind of electrostatic protection structure, controller and air conditioner |
-
2008
- 2008-08-29 CN CN200810198128A patent/CN101662879B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231937A (en) * | 2011-06-13 | 2011-11-02 | 冠捷显示科技（厦门）有限公司 | Electronic static discharge (ESD) prevention circuit board for interface devices |
| CN107493649A (en) * | 2017-09-04 | 2017-12-19 | 广东美的暖通设备有限公司 | A kind of electrostatic protection structure, controller and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101662879B (en) | 2012-08-29 |
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Owner name: HANDA PRECISION ELECTRONIC (KUNSHAN) CO., LTD. Free format text: FORMER OWNER: FOSHAN SHUNDE DISTRICT MITAC PRECISION TECHNOLOGY CO., LTD. Effective date: 20130704 |
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Free format text: CORRECT: ADDRESS; FROM: 528308 FOSHAN, GUANGDONG PROVINCE TO: 215300 SUZHOU, JIANGSU PROVINCE |
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Effective date of registration: 20130704 Address after: 215300 No. second, 269 Avenue, comprehensive bonded area, Jiangsu, Kunshan Patentee after: Mitac Precision Technology (Kunshan) Corp. Address before: 528308 Guangdong Province, Foshan city Shunde District Lunjiao Street Chung Hei Lun Xing Zhong Lu Patentee before: Foshan Shunde District Mitac Precision Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20190829 |