CN205428649U - Metallization ferrite core and paster inductance - Google Patents
Metallization ferrite core and paster inductance Download PDFInfo
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- CN205428649U CN205428649U CN201521053028.8U CN201521053028U CN205428649U CN 205428649 U CN205428649 U CN 205428649U CN 201521053028 U CN201521053028 U CN 201521053028U CN 205428649 U CN205428649 U CN 205428649U
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Abstract
The utility model provides a metallization ferrite core, including ferrite core, the last electrode area territory that is provided with of ferrite core, be formed with on the electrode area territory and be used for the metallic coating be connected with other devices, the metallic coating is in including stacking gradually formation chromium layer, monel layer and the silver layer on electrode area territory surface, chromium layer, monel layer and silver layer pass through the magnetron sputtering preparation. The utility model provides a metallization ferrite core obtains special construction's metallic coating through adopting the magnetron sputtering preparation, has advantages such as the dynamic height of adhering to, strong heat resistance, weldbility are good, and the reduction of whole cladding material thickness, has not only improved welding quality, has improved production efficiency in addition greatly, has reduced the metallization cost. The utility model discloses the paster inductance including this metallization ferrite core is still provided.
Description
Technical field
This utility model relates to a kind of metallization FERRITE CORE and a kind of chip inductor.
Background technology
Under current smart mobile phone, the spring tide of panel computer, electronic component being miniaturized, the requirement of Surface Mounting Technology is increasingly stronger, and power inductance stands in the breach especially.And the environmental requirement of product is more and more higher, all products must cross every test such as ROSH and halogen.Therefore, seek one and there is excellent solderability, thermostability and adhesive force, and the metallization FERRITE CORE of preparation technology environmental protection, seem for industry particularly significant.
Summary of the invention
In consideration of it, this utility model provides a kind of metallization FERRITE CORE, its magnetic core electrode pads has excellent solderability, thermostability and adhesive force, and preparation process environmental protection, without any pollution, with low cost.
This utility model provides a kind of metallization FERRITE CORE, including FERRITE CORE, it is provided with electrode zone in described FERRITE CORE, the coat of metal for being connected it is formed with other devices on described electrode zone, the described coat of metal includes stacking gradually and is formed at the layers of chrome of described electrode area surfaces, nickel-copper alloy layer and silver layer, and described layers of chrome, nickel-copper alloy layer and silver layer are prepared by magnetron sputtering.
This utility model coat of metal uses layers of chrome bottoming, can improve coat of metal adhesive force；Nickel-copper alloy layer is formed again, to form weld layer in layers of chrome；Described silver layer is arranged on outermost layer, constitutes protective layer, nickel-copper alloy layer can be protected not oxidized；Simultaneously because silver is good with the scolding tin compatibility, thus solderability can be improved.This utility model is by using the coat of metal of above-mentioned special construction, and coating adhesion is high, thermostability is strong, solderability good, and low cost.
Preferably, the thickness of described layers of chrome is 0.1-1.0 micron.
It is highly preferred that the thickness of described layers of chrome is 0.2-0.3 micron.
Preferably, the thickness of described nickel-copper alloy layer is 0.7-2.0 micron.
It is highly preferred that the thickness of described nickel-copper alloy layer is 1.2-1.5 micron.
Preferably, in described nickel-copper alloy layer, the mass content of nickel is more than 70%.
Preferably, the thickness of described silver layer is 0.1-1.0 micron.
It is highly preferred that the thickness of described silver layer is 0.2-0.3 micron.
Owing to the metallic coating mass of this utility model special construction is high, therefore can reduce the thickness that arranges of coating accordingly, thus not only increase welding quality, and substantially increase production efficiency, reduce metallization cost.
For playing good anti-oxidation effect, it is preferable that the silver-colored purity of described silver layer is more than 3N.
The concrete shape of this utility model metallization FERRITE CORE does not limits, such as, can be I shape.This utility model metallization FERRITE CORE is specifically as follows a magnetic core electrode.
A kind of chip inductor, it includes the metallization FERRITE CORE of aforementioned any one.
A kind of metallization FERRITE CORE that this utility model provides, its coat of metal includes layers of chrome, nickel-copper alloy layer and the silver layer stacked gradually, and the described coat of metal has adhesive force height, thermostability is strong, solderability good, and low cost and other advantages.The coat of metal of the present utility model uses magnetron sputtering technique to prepare, and spatter film forming speed is fast, and technique whole process is pollution-free, low cost, thus magnetic core electrode pads can be made can to meet the requirement of solderability, soldering resistance and adhesive force, ensure that again environmental protection, without any pollution and also with low cost.
Advantage of the present utility model will partly illustrate, and a part is apparent from according to description, or can be known by enforcement of the present utility model.
Accompanying drawing explanation
Fig. 1 is this utility model metallization ferrite core structure figure；
Fig. 2 is the section amplification figure of the a-quadrant of Fig. 1；
Fig. 3 is the upward view of the metallization FERRITE CORE of Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1-Fig. 3, this utility model provides a kind of metallization FERRITE CORE, including FERRITE CORE 100, the side of described FERRITE CORE 100 is provided with electrode zone 101, this electrode zone is the one side contacted with pcb board paster, it is formed with the coat of metal for being connected with other devices on described electrode zone 101, Fig. 2 show the section structure enlarged drawing of a-quadrant in Fig. 1, shown in comparison Fig. 3, this coat of metal includes stacking gradually the layers of chrome 10 being formed at described electrode zone 101 surface, nickel-copper alloy layer 20 and silver layer 30, described layers of chrome 10, nickel-copper alloy layer 20 and silver layer 30 are prepared by magnetron sputtering.
Preferably, the thickness of described layers of chrome is 0.1-1.0 micron.
It is highly preferred that the thickness of described layers of chrome is 0.2-0.3 micron.
Preferably, the thickness of described nickel-copper alloy layer is 0.7-2.0 micron.
It is highly preferred that the thickness of described nickel-copper alloy layer is 1.2-1.5 micron.
Preferably, in described nickel-copper alloy layer, the mass content of nickel is more than 70%.
Preferably, the thickness of described silver layer is 0.1-1.0 micron.
It is highly preferred that the thickness of described silver layer is 0.2-0.3 micron.
The metallization FERRITE CORE of the present embodiment can use as the magnetic core of chip inductor.The shape of the coat of metal can be according to the shape of electrode zone and be actually needed and be set to rectangle, circle or other shapes.
The preparation method of this utility model above-mentioned metallization FERRITE CORE is as follows:
Take FERRITE CORE, FERRITE CORE is cleaned and dries, described FERRITE CORE is provided with electrode zone；The mode using magnetron sputtering prepares the coat of metal at described electrode area surfaces, obtains the FERRITE CORE that metallizes, and the described coat of metal includes stacking gradually and is formed at the layers of chrome of described electrode area surfaces, nickel-copper alloy layer and silver layer.
Sputter layers of chrome: magnetic-core arranging is put into well in special tool, fix, only expose electrode zone, then install on the horse of vacuum coating, advance vacuum machine, evacuation, on logical for crome metal target power supply, it is filled with argon, starts sputter, the current settings that chromium target is logical is 20-25A, and the thickness of gained layers of chrome is 0.1-1.0 micron；
Sputter nickel-copper alloy layer: close the power supply of chromium target, open the power supply of monel target, the current settings that monel target is logical is 20-25A, and the thickness of gained nickel-copper alloy layer is 0.7-2.0 micron, and in described nickel-copper alloy layer, the mass content of nickel is more than 70%；
Sputter silver layer: close the power supply of monel target, opens the power supply of argent target, and the current settings that silver target is logical is 15-20A, and the thickness of gained silver layer is 0.1-1.0 micron.
Vacuum in above-mentioned magnetron sputtering process is 0.1-10Pa, and Sputtering power density is 0.1-20W/cm2.
The above is preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (10)
1. a metallization FERRITE CORE, including FERRITE CORE, it is provided with electrode zone in described FERRITE CORE, it is characterized in that, the coat of metal for being connected it is formed with other devices on described electrode zone, the described coat of metal includes stacking gradually and is formed at the layers of chrome of described electrode area surfaces, nickel-copper alloy layer and silver layer, and described layers of chrome, nickel-copper alloy layer and silver layer are prepared by magnetron sputtering.
Metallize FERRITE CORE the most as claimed in claim 1, it is characterised in that the thickness of described layers of chrome is 0.1-1.0 micron.
Metallize FERRITE CORE the most as claimed in claim 2, it is characterised in that the thickness of described layers of chrome is 0.2-0.3 micron.
Metallize FERRITE CORE the most as claimed in claim 1, it is characterised in that the thickness of described nickel-copper alloy layer is 0.7-2.0 micron.
Metallize FERRITE CORE the most as claimed in claim 4, it is characterised in that the thickness of described nickel-copper alloy layer is 1.2-1.5 micron.
Metallize FERRITE CORE the most as claimed in claim 1, it is characterised in that the thickness of described silver layer is 0.1-1.0 micron.
Metallize FERRITE CORE the most as claimed in claim 6, it is characterised in that the thickness of described silver layer is 0.2-0.3 micron.
Metallize FERRITE CORE the most as claimed in claim 1, it is characterised in that the silver-colored purity of described silver layer is more than 3N.
Metallize FERRITE CORE the most as claimed in claim 1, it is characterised in that described electrode zone is provided with wire casing.
10. a chip inductor, it is characterised in that include the metallization FERRITE CORE described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521053028.8U CN205428649U (en) | 2015-12-16 | 2015-12-16 | Metallization ferrite core and paster inductance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521053028.8U CN205428649U (en) | 2015-12-16 | 2015-12-16 | Metallization ferrite core and paster inductance |
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| CN205428649U true CN205428649U (en) | 2016-08-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405601A (en) * | 2015-12-16 | 2016-03-16 | 深圳市康磁电子有限公司 | Metallized ferrite magnetic core and preparation method thereof |
| CN109036779A (en) * | 2018-09-04 | 2018-12-18 | 湖南创电子科技股份有限公司 | Die perfusion forms winding inductor and preparation method thereof |
| CN109148101A (en) * | 2018-09-04 | 2019-01-04 | 珠海群创新材料技术有限公司 | A kind of soft magnetic core and preparation method thereof of high pressure resistant inductor |
-
2015
- 2015-12-16 CN CN201521053028.8U patent/CN205428649U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405601A (en) * | 2015-12-16 | 2016-03-16 | 深圳市康磁电子有限公司 | Metallized ferrite magnetic core and preparation method thereof |
| CN109036779A (en) * | 2018-09-04 | 2018-12-18 | 湖南创电子科技股份有限公司 | Die perfusion forms winding inductor and preparation method thereof |
| CN109148101A (en) * | 2018-09-04 | 2019-01-04 | 珠海群创新材料技术有限公司 | A kind of soft magnetic core and preparation method thereof of high pressure resistant inductor |
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