CN105244130A - Manufacturing method of super-micro alloy resistor - Google Patents
Manufacturing method of super-micro alloy resistor Download PDFInfo
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- CN105244130A CN105244130A CN201510735350.7A CN201510735350A CN105244130A CN 105244130 A CN105244130 A CN 105244130A CN 201510735350 A CN201510735350 A CN 201510735350A CN 105244130 A CN105244130 A CN 105244130A
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Abstract
The invention relates to the technical field of electronic passive device, and in particular to a manufacturing method of a super-micro alloy resistor. The method comprises the steps of: coating of an electroplate proof insulating protective layer on an alloy plate, partial removal of electroplate proof insulating protective layer, electroplating of a conductive electrode area, high precision slitting, resistance trimming and high precision grading. The high precision slitting and grading are conducted in accordance with the preset computer programs, not only have high precision but also can conduct free cutting according to the preset patterns, so that the method is very suitable for small batch production of different patterns. Compared with the traditional die stamping mode, the method does not need pre-molding, has good consistency, effectively improves the utilization rate of raw materials, resistance value precision and product yield of the super micro high alloy resistor; and the method is simple for production, low in energy consumption and meets the needs of large scale production.
Description
Technical field
The present invention relates to electronic passive device technical field, refer in particular to a kind of manufacture method of superminiature alloy fled rheostat.
Background technology
Resistance alloys is also called current sense resistor, current sensing resistor, alloy sample resistance or electric current inductive reactance, its have resistance precisely, Low Drift Temperature, high heat conduction, the characteristic such as high temperature resistant.Along with hybrid circuit is to the future development of miniaturization, lightweight, high reliability, the surface mount of alloy resistance, even microminiaturization is had higher requirement.
Present surface-pasted alloy fled rheostat generally adopts alloy sheet material reservation shape to carry out punching press or punch die, then uses different production technologies to carry out protection encapsulation.The cooked mode of this punching press or punch die has following 4 drawbacks: 1, the utilance of sheet alloy is not high; 2, the residual of deformation or mechanical stress can be caused in the local of mechanical shock alloy sheet material; 3, along with the wearing and tearing of diel, the consistency of the size of alloy fled rheostat can be caused poor; 4, the limitation of ultraminiaturization.
Summary of the invention
The problem that the present invention is directed to prior art provides a kind of manufacture method of superminiature alloy fled rheostat; without the need to punching press and complicated sealing technique; the yield etc. of the utilization rate of raw materials of effective raising superminiature high alloy resistor, resistance value precision, product, the low needs meeting large-scale production of simple for production, energy consumption.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A manufacture method for superminiature alloy fled rheostat, comprises the following steps:
Step 1, to be all coated with in the surrounding of sheet alloy and to be covered with anti-electric plating insulating protective layer;
Step 2, preset as the region of conductive electrode on sheet alloy, the anti-plating insulating protective layer removing this region exposes sheet alloy;
Step 3, on the electroplating surface of the sheet alloy exposed electric conducting material;
Step 4, surface marking line of cut at sheet alloy, use cutting equipment alloy sheet material to carry out high-accuracy itemize, and be divided into end to end alloy fled rheostat bar;
Step 5, use laser resistance adjuster alloy resistor strip carry out resistance trimming;
Step 6, use cutting equipment carry out high-accuracy gradation to the alloy fled rheostat bar after resistance trimming, form superminiature alloy fled rheostat monomer.
Wherein, described sheet alloy, when precise slitting and gradation, carries out precision segmentation by digital control approach according to the program that computer is preset.
Wherein, before carry out step 1, select a kind of sheet alloy according to the requirement of final use to electrical property, described product electrical property Primary Reference resistance value R, power P and TCR temperature coefficient.
Wherein, the anti-plating insulating protective layer described in step 1 is organic resin insulating layer, and the smearing thickness of organic resin insulating layer is 0.01mm ~ 0.2mm.
Wherein, the electric conducting material described in step 3 is copper Cu, golden Au, silver-colored Ag, nickel or tin Sn.
Beneficial effect of the present invention:
The invention provides a kind of manufacture method of superminiature alloy fled rheostat, sheet alloy is removed the steps such as anti-plating insulating protective layer, territory, plated conductive polar region, high-accuracy itemize, resistance trimming and high-accuracy gradation through the anti-plating insulating protective layer of coating, local and completed the making of superminiature alloy fled rheostat; The program that wherein high-accuracy itemize and gradation are all preset according to computer is carried out, and not only precision is high, and arbitrarily can cut by the figure preset, and is well suited for different graphic small lot batch manufacture; Relatively traditional mould punching mode, good without the need to molding in advance, consistency, effectively improve the yield etc. of the utilization rate of raw materials of superminiature high alloy resistor, resistance value precision, product, the low needs meeting large-scale production of simple for production, energy consumption.
Accompanying drawing explanation
Fig. 1 is the flow chart of the manufacture method of a kind of superminiature alloy fled rheostat of the present invention.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment and accompanying drawing, the present invention is further illustrated, and the content that execution mode is mentioned not is limitation of the invention.Below in conjunction with accompanying drawing, the present invention is described in detail.
The manufacture method of a kind of superminiature alloy fled rheostat provided by the invention, before carrying out concrete technology production, a kind of sheet alloy is selected, the flat lamellar body of the alloy materials such as such as nickel, chromium, manganese, aluminium or copper or strip material according to the requirement of final use to electrical property; Described product electrical property Primary Reference resistance value R, power P and TCR temperature coefficient.As 1m Ω, 1/16W, 75PPM/ DEG C etc.; It specifically comprises the following steps:
Step 1, to be all coated with in the surrounding of sheet alloy and to be covered with anti-electric plating insulating protective layer; Concrete wherein said anti-plating insulating protective layer is organic resin insulating layer, and the smearing thickness of organic resin insulating layer is 0.01mm ~ 0.2mm.This organic resin insulating layer has good anti-wear performance and decay resistance, can protect the surrounding of sheet alloy well, and the surface after coating protection is smooth, even, without the directive shortcoming of print process tool.
Step 2, preset as the region of conductive electrode on sheet alloy, the anti-plating insulating protective layer removing this region exposes sheet alloy.
Step 3, on the electroplating surface of the sheet alloy exposed electric conducting material, according to different conduction demands, the electric conducting material that alterable plating is different, described electric conducting material can be copper Cu, golden Au, silver-colored Ag, nickel or tin Sn.
Step 4, surface marking line of cut at sheet alloy, use cutting equipment alloy sheet material to carry out high-accuracy itemize, and be divided into end to end alloy fled rheostat bar.Described cutting equipment is to connect the cutting equipment that computer carries out numerical control operating, such as laser cutting machine, the program that institute's cutting track is all preset according to computer is carried out, and its cutting accuracy can reach below 0.01mm, can meet the needs of cutting resistance alloys completely.And arbitrarily can cut by the figure preset, be well suited for different graphic small lot batch manufacture; Good without the need to molding in advance, consistency.
Step 5, use laser resistance adjuster alloy resistor strip carry out resistance trimming.Resistance value and overall dimension have much relations, and hindered by the sheet of laser resistor trimming function fine adjustment alloy fled rheostat, resistance accuracy is higher.
Step 6, use cutting equipment carry out high-accuracy gradation to the alloy fled rheostat bar after resistance trimming, form superminiature alloy fled rheostat monomer.In the present invention, described superminiature refers to that overall dimension is at below 1mm*0.5mm.
Produce alloy fled rheostat by mould punching mode in traditional handicraft, need the mould making punching press in advance; And the mould made more or less all can exist certain size deviation at every turn, mould is easy to wear, and during punching press, easy involutory gold plaque produces the hidden danger such as edge stress and micro-crack.For small lot customization, then can the production cycle is long, cost is high inferior position, the needs of client cannot be met.
In the present invention, sheet alloy is removed the steps such as anti-plating insulating protective layer, territory, plated conductive polar region, high-accuracy itemize, resistance trimming and high-accuracy gradation through the anti-plating insulating protective layer of coating, local and completed the making of superminiature alloy fled rheostat; The program that wherein high-accuracy itemize and gradation are all preset according to computer is carried out, and not only precision is high, and arbitrarily can cut by the figure preset, and is well suited for different graphic small lot batch manufacture; Relatively traditional mould punching mode, good without the need to molding in advance, consistency, effectively improve the yield etc. of the utilization rate of raw materials of superminiature high alloy resistor, resistance value precision, product, the low needs meeting large-scale production of simple for production, energy consumption.
The above, it is only present pre-ferred embodiments, not any pro forma restriction is done to the present invention, although the present invention with preferred embodiment openly as above, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when utilizing the technology contents of above-mentioned announcement or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, any simple modification that above embodiment is done is referred to according to the technology of the present invention, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (5)
1. a manufacture method for superminiature alloy fled rheostat, is characterized in that, comprises the following steps:
Step 1, to be all coated with in the surrounding of sheet alloy and to be covered with anti-electric plating insulating protective layer;
Step 2, preset as the region of conductive electrode on sheet alloy, the anti-plating insulating protective layer removing this region exposes sheet alloy;
Step 3, on the electroplating surface of the sheet alloy exposed electric conducting material;
Step 4, surface marking line of cut at sheet alloy, use cutting equipment alloy sheet material to carry out high-accuracy itemize, and be divided into end to end alloy fled rheostat bar;
Step 5, use laser resistance adjuster alloy resistor strip carry out resistance trimming;
Step 6, use cutting equipment carry out high-accuracy gradation to the alloy fled rheostat bar after resistance trimming, form superminiature alloy fled rheostat monomer.
2. the manufacture method of a kind of superminiature alloy fled rheostat according to claim 1, is characterized in that: described sheet alloy, when precise slitting and gradation, carries out precision segmentation by digital control approach according to the program that computer is preset.
3. the manufacture method of a kind of superminiature alloy fled rheostat according to claim 1, it is characterized in that: before carry out step 1, a kind of sheet alloy is selected, described product electrical property Primary Reference resistance value R, power P and TCR temperature coefficient according to the requirement of final use to electrical property.
4. the manufacture method of a kind of superminiature alloy fled rheostat according to claim 1, is characterized in that: the anti-plating insulating protective layer described in step 1 is organic resin insulating layer, and the smearing thickness of organic resin insulating layer is 0.01mm ~ 0.2mm.
5. the manufacture method of a kind of superminiature alloy fled rheostat according to claim 1, is characterized in that: the electric conducting material described in step 3 is copper Cu, golden Au, silver-colored Ag, nickel or tin Sn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735350.7A CN105244130B (en) | 2015-11-03 | 2015-11-03 | A kind of production method of superminiature alloy fled rheostat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735350.7A CN105244130B (en) | 2015-11-03 | 2015-11-03 | A kind of production method of superminiature alloy fled rheostat |
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| Publication Number | Publication Date |
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| CN105244130A true CN105244130A (en) | 2016-01-13 |
| CN105244130B CN105244130B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510735350.7A Active CN105244130B (en) | 2015-11-03 | 2015-11-03 | A kind of production method of superminiature alloy fled rheostat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494037A (en) * | 2018-11-19 | 2019-03-19 | 深圳市业展电子有限公司 | A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R |
| CN116313342A (en) * | 2023-01-10 | 2023-06-23 | 普森美微电子技术(苏州)有限公司 | Local plastic-packaged antioxidant high-power alloy resistor and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0661008A (en) * | 1991-12-02 | 1994-03-04 | Murata Mfg Co Ltd | Manufacture of thermistor element |
| CN101034606A (en) * | 2007-02-14 | 2007-09-12 | 光颉科技股份有限公司 | Making method for current induction wafer resistor |
| CN101118794A (en) * | 2006-07-31 | 2008-02-06 | 信昌电子陶瓷股份有限公司 | Manufacture process of high precision alloy fled rheostat |
| CN101593589A (en) * | 2009-04-30 | 2009-12-02 | 中国振华集团云科电子有限公司 | The manufacture method of JANS plate type thick film resistor |
-
2015
- 2015-11-03 CN CN201510735350.7A patent/CN105244130B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0661008A (en) * | 1991-12-02 | 1994-03-04 | Murata Mfg Co Ltd | Manufacture of thermistor element |
| CN101118794A (en) * | 2006-07-31 | 2008-02-06 | 信昌电子陶瓷股份有限公司 | Manufacture process of high precision alloy fled rheostat |
| CN101034606A (en) * | 2007-02-14 | 2007-09-12 | 光颉科技股份有限公司 | Making method for current induction wafer resistor |
| CN101593589A (en) * | 2009-04-30 | 2009-12-02 | 中国振华集团云科电子有限公司 | The manufacture method of JANS plate type thick film resistor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494037A (en) * | 2018-11-19 | 2019-03-19 | 深圳市业展电子有限公司 | A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R |
| CN116313342A (en) * | 2023-01-10 | 2023-06-23 | 普森美微电子技术(苏州)有限公司 | Local plastic-packaged antioxidant high-power alloy resistor and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN105244130B (en) | 2018-06-29 |
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