CN201181701Y - Axial multi-grain flexible-welded transient voltage eliminator - Google Patents
Axial multi-grain flexible-welded transient voltage eliminator Download PDFInfo
- Publication number
- CN201181701Y CN201181701Y CNU2008200347303U CN200820034730U CN201181701Y CN 201181701 Y CN201181701 Y CN 201181701Y CN U2008200347303 U CNU2008200347303 U CN U2008200347303U CN 200820034730 U CN200820034730 U CN 200820034730U CN 201181701 Y CN201181701 Y CN 201181701Y
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- Prior art keywords
- crystal grain
- transient voltage
- grain
- grains
- weld tabs
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- Expired - Fee Related
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/30—Technical effects
- H01L2924/35—Mechanical effects
- H01L2924/351—Thermal stress
Abstract
A coaxial multi-grain flexibly-connected transient voltage suppresser mainly consists of two down-leads, two soldering terminals and at least two grains that are connected in series. The end parts of the down-leads are welded and fixed with the grains through the soldering terminals. The end parts of the down-leads, the soldering terminals and the grains are coated by an epoxide resin layer; wherein, two neighboring grains are fixedly connected by a welding block; in the utility model, the welding block is adopted to replace the original combination of copper grains and soldering terminals, thus simplifying the production technique of the multi-grain flexibly-connected transient voltage suppresser, leading each part to be more conveniently located and protecting the grains from being damaged during the processes of production and shaping.
Description
Technical field
The utility model relates to a kind of diode component, is specifically related to the flexible Transient Voltage Suppressor (diode) that welds of a kind of axial polycrystalline grain.
Background technology
Transient Voltage Suppressor is a kind of diode that is used for circuit protection, and english abbreviation is TVS (Transient Voltage Suppressors), so be also referred to as the TVS diode.During work, the TVS diode is in parallel in circuit with protected device, crest voltage is arranged through out-of-date in circuit, and the TVS diode is reversed the puncture conducting, makes subsequent device not be subjected to impacting with high pressure, thereby reaches the purpose of protection.
Reason owing to present crystal grain manufacturing technology, the VBR of single crystal grain (reverse breakdown voltage) maximum can not surpass 250V usually yet in the TVS diode, therefore if the VBR of TVS diode is reached more than the 300V, usually need to adopt the mode of two crystal grain series connection to realize, Fig. 1 is for having the structural representation of common axial twin crystal grain Transient Voltage Suppressor now, as shown in the figure, mainly by lead-in wire 11, weld tabs 12 and crystal grain 13 constitute in axial series, for can be 13 good the linking together of two crystal grain, 13 of crystal grain have been set up a shot copper 14 as the crystal grain contiguous block, this shot copper 14 still welds by weld tabs 12 with two crystal grain 13 in front and back, such structural design can not only well make two crystal grain 13 electrically connect, and can effectively separate two crystal grain 13, avoid crystal grain 13 mutual extrusion impaired (owing to consider the electrical stability of device, the crystal grain of TVS all adopts GPP structure crystal grain at present, and the outstanding glassy layer in GPP structure crystal grain top may be impaired owing to extruding); But brought following problem: weld tabs 12, crystal grain 13, shot copper 14 filling complex procedures when one, welding, operating difficulties; Two, the phenomenon of weld tabs 12, shot copper 14, crystal grain 13 off normals easily takes place, and causes the electrically bad of device; Three, mechanical stress and thermal stress damage in the time of can not effectively cushioning forming process are prone to crystal grain 13 fine fisssures.
Therefore, axial polycrystalline grain Transient Voltage Suppressor how to develop a kind of new construction just becomes the direction that the technical staff was made great efforts in the industry to solve above-mentioned problems of the prior art.
Summary of the invention
The utility model provides a kind of axial polycrystalline grain the flexible Transient Voltage Suppressor that welds, its purpose is: the production craft step that has solved traditional polycrystalline grain Transient Voltage Suppressor is various, each positioning parts difficulty, and the problem of fragile crystal grain in the production forming process.
For achieving the above object, the technical solution adopted in the utility model is: the Transient Voltage Suppressor of the flexible welding of a kind of axial polycrystalline grain, mainly compose in series by two lead-in wires, two weld tabs and at least two crystal grain, the end of described lead-in wire and crystal grain are fixing by the weld tabs welding, and the end of lead-in wire, weld tabs and crystal grain are wrapped up by epoxy resin layer; Wherein: adjacent two intergranules are fixedly connected through a welding block.
Related content in the technique scheme is explained as follows:
1, in the such scheme, the type of described crystal grain has two kinds, and first kind is electrical one-way type, and many crystal grain need equidirectional being connected in series during installation; Second kind is electrical two-way type, as long as crystal grain is connected in series during installation, needn't consider direction.
2, in the such scheme, the thickness of described welding block is greater than the height of crystal grain end protective layer, and for example, if crystal grain is the GPP type, then the thickness of welding block needs greater than crystal grain end glass protection layer height.
The utility model operation principle and advantage are: the utility model adopts welding block replacement shot copper in the past to add the combination of weld tabs; simplified the production technology of polycrystalline grain Transient Voltage Suppressor; make each positioning parts more convenient, and in the production forming process, protected crystal grain not to be damaged.
Description of drawings
Accompanying drawing 1 is for having the cross-sectional view of common axial twin crystal grain Transient Voltage Suppressor now;
Accompanying drawing 2 is the utility model embodiment one cross-sectional view;
Accompanying drawing 3 is the utility model embodiment two cross-sectional view.
In the above accompanying drawing: 1, lead-in wire; 2, weld tabs; 3, crystal grain; 4, epoxy resin layer; 5, end; 6, welding block; 7, electrical two-way type crystal grain; 11, lead-in wire; 12, weld tabs; 13, crystal grain; 14, shot copper.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 2,
The Transient Voltage Suppressor of the flexible welding of a kind of axial polycrystalline grain, mainly compose in series by two lead-in wire 1, two weld tabs 2 and at least two crystal grain 3 (common 2～3 crystal grain), the end 5 of described lead-in wire is fixing by weld tabs 2 welding with crystal grain 3, and the end 5 of lead-in wire, weld tabs 2 and crystal grain 3 are by epoxy resin layer 4 parcels; Fixedly connected between adjacent two crystal grain 3 through a welding block 6.Wherein:
Described crystal grain 3 is electrical one-way type crystal grain, and two crystal grain 3 are connected in series by equidirectional during installation.
The thickness of described welding block 6 is greater than the height of crystal grain 3 end protective layers, and the crystal grain 3 of GPP structure has a glassivation (not marking among the figure), and the thickness of welding block 6 needs greater than crystal grain 3 end glassivations (not marking among the figure) highly.
Embodiment two: shown in accompanying drawing 3,
The Transient Voltage Suppressor of the flexible welding of a kind of axial polycrystalline grain, be with embodiment one difference: described crystal grain is electrical two-way type, as long as electrical two-way type crystal grain 7 is connected in series during installation, needn't consider direction.
Other parts are identical with embodiment one, here repeated description no longer.
The utility model employing welding block 6 replacements shot copper in the past adds the combination of weld tabs, has simplified the production technology of polycrystalline grain 3 Transient Voltage Suppressors, makes each positioning parts more convenient, and has protected crystal grain not to be damaged in the production forming process.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (1)
1, the Transient Voltage Suppressor of the flexible welding of a kind of axial polycrystalline grain, mainly compose in series by two lead-in wires, two weld tabs and at least two crystal grain, the end of described lead-in wire and crystal grain are fixing by the weld tabs welding, and the end of lead-in wire, weld tabs and crystal grain are wrapped up by epoxy resin layer; It is characterized in that: adjacent two intergranules are fixedly connected through a welding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200347303U CN201181701Y (en) | 2008-04-18 | 2008-04-18 | Axial multi-grain flexible-welded transient voltage eliminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200347303U CN201181701Y (en) | 2008-04-18 | 2008-04-18 | Axial multi-grain flexible-welded transient voltage eliminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181701Y true CN201181701Y (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200347303U Expired - Fee Related CN201181701Y (en) | 2008-04-18 | 2008-04-18 | Axial multi-grain flexible-welded transient voltage eliminator |
Country Status (1)
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| CN (1) | CN201181701Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247582A (en) * | 2013-05-10 | 2013-08-14 | 昆山东日半导体有限公司 | Semiconductor surge suppressor lead package structure |
| CN103441121A (en) * | 2013-08-09 | 2013-12-11 | 如皋市日鑫电子有限公司 | High-voltage TVS composite chip diode |
| CN103441122A (en) * | 2013-08-09 | 2013-12-11 | 如皋市日鑫电子有限公司 | High-voltage TVS diode |
| CN103871875A (en) * | 2012-12-17 | 2014-06-18 | 中国振华集团永光电子有限公司 | Manufacturing method and structure of low-temperature-coefficient silicon voltage reference diode |
| CN108122994A (en) * | 2017-12-20 | 2018-06-05 | 中国振华集团永光电子有限公司（国营第八三七厂） | A kind of high-power ultra-low capacitance transient voltage suppressor diode |
| CN108878270A (en) * | 2017-11-09 | 2018-11-23 | 上海长园维安微电子有限公司 | A kind of high power density TVS device and its manufacturing method |
-
2008
- 2008-04-18 CN CNU2008200347303U patent/CN201181701Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871875A (en) * | 2012-12-17 | 2014-06-18 | 中国振华集团永光电子有限公司 | Manufacturing method and structure of low-temperature-coefficient silicon voltage reference diode |
| CN103247582A (en) * | 2013-05-10 | 2013-08-14 | 昆山东日半导体有限公司 | Semiconductor surge suppressor lead package structure |
| CN103247582B (en) * | 2013-05-10 | 2015-07-01 | 昆山东日半导体有限公司 | Semiconductor surge suppressor lead package structure |
| CN103441121A (en) * | 2013-08-09 | 2013-12-11 | 如皋市日鑫电子有限公司 | High-voltage TVS composite chip diode |
| CN103441122A (en) * | 2013-08-09 | 2013-12-11 | 如皋市日鑫电子有限公司 | High-voltage TVS diode |
| CN108878270A (en) * | 2017-11-09 | 2018-11-23 | 上海长园维安微电子有限公司 | A kind of high power density TVS device and its manufacturing method |
| CN108122994A (en) * | 2017-12-20 | 2018-06-05 | 中国振华集团永光电子有限公司（国营第八三七厂） | A kind of high-power ultra-low capacitance transient voltage suppressor diode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20160418 |
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| CF01 | Termination of patent right due to non-payment of annual fee |