CN203596231U - Surface mounting type piezoresistor - Google Patents
Surface mounting type piezoresistor Download PDFInfo
- Publication number
- CN203596231U CN203596231U CN201420014519.0U CN201420014519U CN203596231U CN 203596231 U CN203596231 U CN 203596231U CN 201420014519 U CN201420014519 U CN 201420014519U CN 203596231 U CN203596231 U CN 203596231U
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- CN
- China
- Prior art keywords
- silver layer
- layer
- utility
- tin
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910052709 silver Inorganic materials 0.000 claims abstract description 74
- 239000004332 silver Substances 0.000 claims abstract description 74
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 74
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 16
- 229910052573 porcelain Inorganic materials 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract 5
- 238000009413 insulation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000009713 electroplating Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000003026 anti-oxygenic effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- -1 and on it Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
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- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a surface mounting type piezoresistor which comprises a square ceramic body. An upper silver layer is arranged on the upper surface of the ceramic body, a lower silver layer is arranged on the lower surface of the ceramic body, a left silver layer is arranged on the left end face of the ceramic body, a right silver layer is arranged on the right end face of the ceramic body, the upper silver layer is electrically connected with the right silver layer, the lower silver layer is electrically connected with the left silver layer, silicon insulation protection layers are arranged on the surface of the upper silver layer and the surface of the lower silver layer, and tin-dipped end layers are arranged on the surface of the left silver layer and the surface of the right silver layer. The surface mounting type piezoresistor is high in oxidation resistance and high in weldability and has the advantages of being simple in production technology and low in cost.
Description
Technical field
The utility model relates to a kind of piezo-resistance, more particularly, relates in particular to a kind of surface-adhered type piezo-resistance.
Background technology
Surface-adhered type piezo-resistance has little, the lightweight and reliability high of volume, is widely used in the field such as lightning protection and circuit overvoltage protection.This device, for surface mount process, is had relatively high expectations to solderability, and still, the silver layer of termination is placed on easily oxidation in air for a long time, causes solderability variation.At present, general way is on termination, to plate nickel dam and tin layer, this technique more complicated, and cost is higher.Because silver layer is placed in air easily oxidizedly for a long time, cause solderability bad.Therefore, how to address the above problem, become problem demanding prompt solution.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and the surface-adhered type piezo-resistance that a kind of antioxygenic property and solderability are high is provided, and has the simple and lower-cost technique effect of production technology simultaneously.
The technical solution of the utility model is such: a kind of surface-adhered type piezo-resistance; square porcelain body, be provided with upper silver layer, lower surface along porcelain body upper surface and be provided with that lower silver layer, left side are provided with left silver layer, right side is provided with right silver layer; upper silver layer is electrically connected right silver layer; lower silver layer is electrically connected left silver layer, and on it, silver layer and lower silver layer surface are provided with silicon insulating protective layer, left silver layer and right silver layer surface and are provided with termination and dip in tin layer.
Above-mentioned surface-adhered type piezo-resistance, left silver layer and right silver layer difference up and down end face are extended the upper silver layer of overlap joint electrical connection and lower silver layer respectively.
Above-mentioned surface-adhered type piezo-resistance, termination is dipped in tin layer entirety and is covered left silver layer and right silver layer.
Adopt the utility model of technique scheme, dip in the termination of process of tin formation and dip in tin layer replacing electroplating, technique is simpler, and easy to operate and cost can reduce more than 80% than electroplating.Use the mode of termination wicking to make termination cover layer of metal tin, isolated silver layer and oxygen contact, play raising antioxygenic property and solderability.Metallic tin forms welding edge and facilitates the accurate positioning welding of product, thereby guarantees the stabilised quality of product.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is the vertical direction cross-sectional view of the utility model specific embodiment;
Fig. 2 is the horizontal direction cross-sectional view of the utility model specific embodiment.
In figure: square porcelain body 1, upper silver layer 2, lower silver layer 3, left silver layer 4, right silver layer 5, silicon insulating protective layer 6, tin layer 7 is dipped in termination.
Embodiment
Consult shown in Fig. 1～2; a kind of surface-adhered type piezo-resistance of the present utility model; square porcelain body 1, be provided with upper silver layer 2, lower surface along porcelain body 1 upper surface and be provided with that lower silver layer 3, left side are provided with left silver layer 4, right side is provided with right silver layer 5; upper silver layer 2 is electrically connected right silver layer 5; lower silver layer 3 is electrically connected left silver layer 4; upper silver layer 2 and lower silver layer 3 surfaces are respectively equipped with silicon insulating protective layer 6, and left silver layer 4 and right silver layer 5 surfaces are respectively equipped with termination and dip in tin layer 7.
Left silver layer 4 and right silver layer 5 difference up and down end face are extended the upper silver layer 2 of overlap joint electrical connection and lower silver layer 3.
Termination is dipped in tin layer 7 entirety and is covered left silver layer 4 and right silver layer 5.
The utility model, in the time of concrete production, dips in the termination that process of tin forms and dips in tin layer 7 replacing electroplating, and simpler, the easy to operate and cost of technique can reduce more than 80% than electroplating.Use the mode of termination wicking to make termination cover layer of metal tin, isolated silver layer and oxygen contact, play raising antioxygenic property and solderability.Metallic tin forms welding edge and facilitates the accurate positioning welding of product, thereby guarantees the stabilised quality of product.
In sum, the utility model is as specification and diagramatic content, makes actual sample and through repeatedly use test, from the effect of use test, provable the utility model can reach the object that it is expected, practical value is unquestionable.Above illustrated embodiment is only used for conveniently illustrating the utility model, not the utility model is done to any pro forma restriction, under any, in technical field, have and conventionally know the knowledgeable, if not departing from the scope of technical characterictic that the utility model is carried, utilize technology contents that the utility model discloses to make the local equivalent embodiment that changes or modify, and do not depart from technical characterictic content of the present utility model, all still belong in the scope of the utility model technical characterictic.
Claims (3)
1. a surface-adhered type piezo-resistance; square porcelain body (1), be provided with upper silver layer (2), lower surface along porcelain body (1) upper surface and be provided with that lower silver layer (3), left side are provided with left silver layer (4), right side is provided with right silver layer (5); upper silver layer (2) is electrically connected right silver layer (5); lower silver layer (3) is electrically connected left silver layer (4); it is characterized in that: upper silver layer (2) and lower silver layer (3) surface are respectively equipped with silicon insulating protective layer (6), and left silver layer (4) and right silver layer (5) surface are respectively equipped with termination and dip in tin layer (7).
2. surface-adhered type piezo-resistance according to claim 1, is characterized in that: left silver layer (4) and right silver layer (5) difference up and down end face are extended the upper silver layer (2) of overlap joint electrical connection and lower silver layer (3) respectively.
3. surface-adhered type piezo-resistance according to claim 2, is characterized in that: termination is dipped in tin layer (7) entirety and covered left silver layer (4) and right silver layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014519.0U CN203596231U (en) | 2014-01-09 | 2014-01-09 | Surface mounting type piezoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014519.0U CN203596231U (en) | 2014-01-09 | 2014-01-09 | Surface mounting type piezoresistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203596231U true CN203596231U (en) | 2014-05-14 |
Family
ID=50677096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420014519.0U Expired - Lifetime CN203596231U (en) | 2014-01-09 | 2014-01-09 | Surface mounting type piezoresistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203596231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374483A (en) * | 2014-08-19 | 2016-03-02 | 可穆特克浪涌 | Fuse-integrated resistor assembly |
| WO2022082470A1 (en) * | 2020-10-21 | 2022-04-28 | Dongguan Littelfuse Electronics Company Limited | Masking paper protection technology for electronic component |
-
2014
- 2014-01-09 CN CN201420014519.0U patent/CN203596231U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374483A (en) * | 2014-08-19 | 2016-03-02 | 可穆特克浪涌 | Fuse-integrated resistor assembly |
| CN105374483B (en) * | 2014-08-19 | 2018-05-15 | 可穆特克浪涌 | The resistor component of integrated fuse |
| WO2022082470A1 (en) * | 2020-10-21 | 2022-04-28 | Dongguan Littelfuse Electronics Company Limited | Masking paper protection technology for electronic component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LITTELFUSE INC. Free format text: FORMER NAME: DONGGUAN LINGTE ELECTRONIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Humen Town Gate community in Guangdong province Dongguan City Nan Fang village 523000 Patentee after: DONGGUAN LITTELFUSE ELECTRONICS Co.,Ltd. Address before: Humen Town Gate community in Guangdong province Dongguan City Nan Fang village 523000 Patentee before: DONGGUAN LITTELFUSE ELECTRONICS CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |