CN201749751U - Novel thick film resistor - Google Patents
Novel thick film resistor Download PDFInfo
- Publication number
- CN201749751U CN201749751U CN2010202483865U CN201020248386U CN201749751U CN 201749751 U CN201749751 U CN 201749751U CN 2010202483865 U CN2010202483865 U CN 2010202483865U CN 201020248386 U CN201020248386 U CN 201020248386U CN 201749751 U CN201749751 U CN 201749751U
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- resistive element
- cross
- thick film
- resistor
- sectional area
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Abstract
The utility model discloses a novel thick film resistor, comprising a resistor body and an electrode, wherein the resistor body is provided with a laser resistance-adjusting cutting slot and an effective width area corresponding to the laser resistance-adjusting cutting slot; the end of the resistor body is provided with a depression capable of reducing the area of the cross section of the end. The utility model can reduce the consumption amount of resistor material under the condition of not affecting the electric property of the resistor, thereby decreasing the lead content of the resistor, and decreasing the product cost.
Description
Technical field
The utility model belongs to the electronic devices and components field, particularly a kind of thick-film resistor.
Background technology
In the prior art, the design of thick-film resistor figure is a rectangle, forms a resistance trimming grooving 3 by laser cutting, and the resistance effective width reduces, and the resistance number formulary increases, thereby resistance value is risen.Thick-film resistor through laser resistor trimming diminishes because of effective width, and the weakest place of resistance electrical property is exactly laser resistor trimming place (as Fig. 1).Resistive element 1 only plays conducting resistance body 1 and electrode 2 with the position of electrode 2 lap-joints.
As shown in Figure 2, in traditional resistor when energising,, electric current (among the figure shown in the dotted line) can be walked around the laser cutting zone that has cut off when flowing through resistive element, and (the figure shown in the black surround) is that the effective width zone 11 of resistance is passed through from the narrowest zone of resistance sectional area.According to resistance characteristic and voltage-current characteristic, effective width zone 11 can be higher than the power that other zone produces when energising, promptly is " heat generating spot " or the title " weak area " of resistance herein, and resistive element is if can burn out herein earlier because of overload burns out then.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of novel thick film resistance, and it can reduce the resistance material consumption under the situation that does not influence the resistance electrical property.
The purpose of this utility model is achieved in that a kind of novel thick film resistance, comprise resistive element and electrode, resistive element is provided with laser resistor trimming grooving and corresponding with it effective width zone, and it is characterized in that: described resistive element termination is provided with the depressed part that can reduce the termination cross-sectional area.
The design cross-sectional area of described resistive element termination and electrode link position is more than or equal to the minimal design cross-sectional area in effective width zone.
Described depressed part is located at the both sides of resistive element two ends, one-sided or diagonal angle.
The cross section of described depressed part be square depression, arc-shaped recess or inclined-plane.
A kind of novel thick film resistance that the utility model provides, it can reduce the resistance material consumption under the situation that does not influence the resistance electrical property, thereby reduces the lead content of resistance, reduces the cost of product.
Description of drawings
Fig. 1 is the prior art constructions schematic diagram;
Fig. 2 is a path of current schematic diagram in the prior art;
Fig. 3 is the structural representation of embodiment 1 of the present utility model;
Fig. 4 is the structural representation of embodiment 2 of the present utility model;
Fig. 5 is the structural representation of embodiment 3 of the present utility model;
Fig. 6 is the structural representation of embodiment 4 of the present utility model.
Embodiment
Shown in Fig. 3-6, the utility model is a kind of novel thick film resistance, comprise resistive element 1 and electrode 2, by laser resistor trimming, resistive element 1 is provided with laser resistor trimming grooving 3 and corresponding with it effective width zone 11, be provided with depressed part 12 in resistive element 1 termination, make the termination narrowed width, cross-sectional area diminishes.The design cross-sectional area of resistive element 1 termination and electrode 2 link positions is more than or equal to the minimal design cross-sectional area in effective width zone 11.Depressed part 12 is located at the both sides of resistive element 1 two ends, one-sided or diagonal angle.
The cross section of depressed part 12 be square depression, arc-shaped recess or inclined-plane all can, as long as can effectively reduce the termination cross-sectional area, make the termination narrow down and get final product.
As shown in Figure 3, in the present embodiment, depressed part 12 is located at the two sides of resistive element 1 two ends, the width A of the position that resistive element 1 termination is connected with electrode 2 is more than or equal to the width B in effective width zone 11, and promptly the cross-sectional area of the position that is connected with electrode 2, resistive element 1 termination is more than or equal to the cross-sectional area in effective width zone 11.The cross section of depressed part 12 depression that is square.
As shown in Figure 4, in the present embodiment, depressed part 12 is located at the two sides of resistive element 1 two ends, the width A of the position that resistive element 1 termination is connected with electrode 2 is more than or equal to the width B in effective width zone 11, and promptly the cross-sectional area of the position that is connected with electrode 2, resistive element 1 termination is more than or equal to the cross-sectional area in effective width zone 11.The curved depression in the cross section of depressed part 12.
As shown in Figure 5, in the present embodiment, depressed part 12 is located at the two sides of resistive element 1 two ends, the width A of the position that resistive element 1 termination is connected with electrode 2 is more than or equal to the width B in effective width zone 11, and promptly the cross-sectional area of the position that is connected with electrode 2, resistive element 1 termination is more than or equal to the cross-sectional area in effective width zone 11.The cross section of depressed part 12 is the inclined-plane.
Embodiment 4
As shown in Figure 6, in the present embodiment, depressed part 12 is located at the side of resistive element 1 two ends by laser resistor trimming grooving 3, the width A of the position that resistive element 1 termination is connected with electrode 2 is more than or equal to the width B in effective width zone 11, and promptly the cross-sectional area of the position that is connected with electrode 2, resistive element 1 termination is more than or equal to the cross-sectional area in effective width zone 11.The cross section of depressed part 12 is the inclined-plane.
Claims (4)
1. a novel thick film resistance comprises resistive element and electrode, and resistive element is provided with laser resistor trimming grooving and corresponding with it effective width zone, and it is characterized in that: described resistive element termination is provided with the depressed part that can reduce the termination cross-sectional area.
2. a kind of novel thick film resistance according to claim 1 is characterized in that: the design cross-sectional area of described resistive element termination and electrode link position is more than or equal to the minimal design cross-sectional area in effective width zone.
3. a kind of novel thick film resistance according to claim 1 is characterized in that: described depressed part is located at the both sides of resistive element two ends, one-sided or diagonal angle.
4. according to the described a kind of novel thick film resistance of arbitrary claim among the claim 1-3, it is characterized in that: the cross section of described depressed part be square depression, arc-shaped recess or inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202483865U CN201749751U (en) | 2010-07-06 | 2010-07-06 | Novel thick film resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202483865U CN201749751U (en) | 2010-07-06 | 2010-07-06 | Novel thick film resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749751U true CN201749751U (en) | 2011-02-16 |
Family
ID=43584424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202483865U Expired - Fee Related CN201749751U (en) | 2010-07-06 | 2010-07-06 | Novel thick film resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201749751U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971867A (en) * | 2014-05-27 | 2014-08-06 | 昆山福烨电子有限公司 | Anti-overheating thick-film resistor |
| CN103971867B (en) * | 2014-05-27 | 2016-11-30 | 昆山福烨电子有限公司 | A kind of anti-overheated thick-film resistor |
| CN112863796A (en) * | 2021-01-12 | 2021-05-28 | 昆山业展电子有限公司 | Method for processing chip resistor |
-
2010
- 2010-07-06 CN CN2010202483865U patent/CN201749751U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971867A (en) * | 2014-05-27 | 2014-08-06 | 昆山福烨电子有限公司 | Anti-overheating thick-film resistor |
| CN103971867B (en) * | 2014-05-27 | 2016-11-30 | 昆山福烨电子有限公司 | A kind of anti-overheated thick-film resistor |
| CN112863796A (en) * | 2021-01-12 | 2021-05-28 | 昆山业展电子有限公司 | Method for processing chip resistor |
| CN112863796B (en) * | 2021-01-12 | 2022-08-12 | 昆山业展电子有限公司 | Method for processing chip resistor |
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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: 20110216 Termination date: 20180706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |