CN102378499B - Method for manufacturing window plug holes at two sides during PCB (Printed Circuit Board) resistance welding - Google Patents
Method for manufacturing window plug holes at two sides during PCB (Printed Circuit Board) resistance welding Download PDFInfo
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- CN102378499B CN102378499B CN 201110315991 CN201110315991A CN102378499B CN 102378499 B CN102378499 B CN 102378499B CN 201110315991 CN201110315991 CN 201110315991 CN 201110315991 A CN201110315991 A CN 201110315991A CN 102378499 B CN102378499 B CN 102378499B
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Abstract
The invention relates to a method for manufacturing window plug holes at two sides during PCB (Printed Circuit Board) resistance welding, comprising the following steps of: firstly, providing a PCB board, wherein the PCB board is provided with a first through hole to be provided with the window plug holes at the two sides and a second through hole not to be provided with the window plug holes at the two sides; secondly, carrying out primary resistance welding on the PCB board, wherein a manufacturing process comprises the following steps of: manufacturing the window plug holes at the two sides, carrying out primary prebaking, carrying out primary exposing, carrying out primary developing and carrying out primary after baking, and directly carrying out the primary prebaking without carrying out silk screen printing on the panel of the PCB board after the window plug holes are manufactured at the two sides; and thirdly, carrying out secondary resistance welding on the PCB board, wherein the manufacturing process comprises the following steps of: manufacturing no window plug hole at the two sides, carrying out the silk screen printing, carrying out secondary prebaking, carrying out secondary exposing, carrying out secondary developing and carrying out secondary after baking. In the method for manufacturing the window plug holes at the two sides during PCB resistance welding, an independent plug hole process is adopted for manufacturing the window plug holes at the two sides, and the defects that the plug hole is punched through and oil is spewed can be effectively overcome.
Description
Technical field
The present invention relates to printed circuit board (PCB) (Printed Circuit Board, PCB) making field, relate in particular to the manufacture method of a kind of pcb board welding resistance two sides windowed plug hole.
Background technology
At present, have the pcb board of windowing on the two sides and add man-hour carrying out welding resistance, usually adopt following welding resistance flow process: consent → ink for screen printing → pre-baked → exposure → development → examination board → rear roasting.When adopting this welding resistance work flow to produce, the punching of consent position occurs easily and wear or the wet goods quality defect of vomitting, need to be improved.
Summary of the invention
Therefore, the object of the present invention is to provide the manufacture method of a kind of pcb board welding resistance two sides windowed plug hole, it adopts independent consent flow process for the two sides windowed plug hole, effectively improves the consent punching and wears and the wet goods defective of vomitting.
For achieving the above object, the invention provides the manufacture method of a kind of pcb board welding resistance two sides windowed plug hole, comprise the steps:
Step 1: pcb board is provided, and described pcb board is provided with the first through hole for the treatment of the two sides windowed plug hole and the second through hole for the treatment of the windowless consent in two sides;
Step 2: described pcb board is made for the first time welding resistance, the making flow process is: two sides windowed plug hole → first time is pre-baked → for the first time exposure → develop for the first time → and roasting after for the first time, carrying out the two sides windows when filling in processing, adopting solder resist that described the first through hole is carried out consent processes, then not carrying out consent for described the second through hole processes, after finishing the two sides windowed plug hole, the plate face of pcb board is not carried out ink for screen printing and directly to carry out the first time pre-baked, after subsequent treatment, form the two sides windowed plug hole at described the first lead to the hole site;
Step 3: described pcb board is made for the second time welding resistance, the making flow process is: the windowless consent → ink for screen printing in two sides → second time is pre-baked → and bakes afterwards exposure → second development → second time for the second time, during ink for screen printing, plate face to pcb board carries out silk-screen, and the half tone that adopts is provided with the gear oil drop and enters in the windowed plug hole of two sides to prevent printing ink in windowed plug hole position, two sides.
In the described step 2, use the aluminium flake consent during windowed plug hole of two sides, when for the first time pre-baked, baked 60 minutes at 70 ℃, when developing for the first time, developing time is 75-90 second, and development pressure is controlled at 1.2-1.4Kg/cm
2, adopt segmented when roasting after for the first time, 75 ℃ roasting 30 minutes, 90 ℃ roasting 30 minutes, 120 ℃ roasting 120 minutes.
In the described step 3, during ink for screen printing, the T number of the half tone that adopts is 43T or 48T, and wherein the transformational relation between T number and the order number is 1T=2.54
2Order.
The diameter of described gear oil drop is than the large 10mil in the aperture of the first through hole.
Beneficial effect of the present invention: the manufacture method of pcb board welding resistance of the present invention two sides windowed plug hole, by adopting at twice welding resistance, to adopt independent consent flow process for the two sides windowed plug hole, effectively improve the consent punching and wear and the wet goods defective of vomitting.
Be technological means and the effect that the predetermined purpose of realization is taked for further setting forth the present invention, see also following about detailed description of the present invention and accompanying drawing, believe purpose of the present invention, feature and characteristics, should obtain thus going deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, and the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention is described in detail, will make technical scheme of the present invention and other beneficial effects apparent.
In the accompanying drawing,
Fig. 1 is the schematic flow sheet of the manufacture method of pcb board welding resistance of the present invention two sides windowed plug hole;
Fig. 2 is the cross-sectional view of each corresponding pcb board of production phase of manufacture method of pcb board welding resistance of the present invention two sides windowed plug hole.
Embodiment
Such as Fig. 1 and shown in Figure 2, the manufacture method of pcb board welding resistance of the present invention two sides windowed plug hole comprises the steps:
Step 1: pcb board is provided, and described pcb board is provided with the first through hole 11 for the treatment of the two sides windowed plug hole and the second through hole 12 for the treatment of the windowless consent in two sides;
Step 2: described pcb board is made for the first time welding resistance, the making flow process is: two sides windowed plug hole → first time is pre-baked → for the first time exposure → develop for the first time → and roasting after for the first time, carrying out the two sides windows when filling in processing, adopting solder resist that described the first through hole 11 is carried out consent processes, then not carrying out consent for described the second through hole 12 processes, after finishing the two sides windowed plug hole, the plate face of pcb board is not carried out ink for screen printing and directly to carry out the first time pre-baked, after subsequent treatment, form the two sides windowed plug hole in described the first through hole 11 positions;
Step 3: described pcb board is made for the second time welding resistance, the making flow process is: the windowless consent → ink for screen printing in two sides → second time is pre-baked → and bakes afterwards exposure → second development → second time for the second time, during ink for screen printing, plate face to pcb board carries out silk-screen, and the half tone that adopts is provided with gear oil drop 13 and enters in the windowed plug hole of two sides to prevent printing ink in windowed plug hole position, two sides.
In the described step 2, use the aluminium flake consent during two sides windowed plug hole, when for the first time pre-baked, baked 60 minutes at 70 ℃, when developing for the first time, developing time is 75-90 second, development pressure is controlled at 1.2-1.4Kg/cm2, adopts segmented when roasting after the first time, bakes 30 minutes at 75 ℃, baked 30 minutes at 90 ℃, baked 120 minutes at 120 ℃.
In the described step 3, during ink for screen printing, the T number of the half tone that adopts is 43T or 48T.
The diameter of described gear oil drop 13 is than the large 10mil in the aperture of the first through hole 11.
The manufacture method of above-mentioned pcb board welding resistance two sides windowed plug hole by adopting at twice welding resistance, to adopt independent consent flow process for the two sides windowed plug hole, is effectively improved the consent punching and is worn and the wet goods defective of vomitting.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection range of the accompanying claim of the present invention.
Claims (4)
1. the manufacture method of a pcb board welding resistance two sides windowed plug hole is characterized in that, comprises the steps:
Step 1: pcb board is provided, and described pcb board is provided with the first through hole for the treatment of the two sides windowed plug hole and the second through hole for the treatment of the windowless consent in two sides;
Step 2: described pcb board is made for the first time welding resistance, the making flow process is: two sides windowed plug hole → first time is pre-baked → for the first time exposure → develop for the first time → and roasting after for the first time, carrying out the two sides windows when filling in processing, adopting solder resist that described the first through hole is carried out consent processes, then not carrying out consent for described the second through hole processes, after finishing the two sides windowed plug hole, the plate face of pcb board is not carried out ink for screen printing and directly to carry out the first time pre-baked, after subsequent treatment, form the two sides windowed plug hole at described the first lead to the hole site;
Step 3: described pcb board is made for the second time welding resistance, the making flow process is: the windowless consent → ink for screen printing in two sides → second time is pre-baked → and bakes afterwards exposure → second development → second time for the second time, during ink for screen printing, plate face to pcb board carries out silk-screen, and the half tone that adopts is provided with the gear oil drop and enters in the windowed plug hole of two sides to prevent printing ink in windowed plug hole position, two sides.
2. the manufacture method of pcb board welding resistance as claimed in claim 1 two sides windowed plug hole is characterized in that, in the described step 2, use the aluminium flake consent during two sides windowed plug hole, when for the first time pre-baked, baked 60 minutes at 70 ℃, when developing for the first time, developing time is 75-90 second, development pressure is controlled at 1.2-1.4Kg/cm2, adopts segmented when roasting after the first time, bakes 30 minutes at 75 ℃, baked 30 minutes at 90 ℃, baked 120 minutes at 120 ℃.
3. the manufacture method of pcb board welding resistance as claimed in claim 1 or 2 two sides windowed plug hole is characterized in that in the described step 3, during ink for screen printing, the T number of the half tone that adopts is 43T or 48T.
4. the manufacture method of pcb board welding resistance as claimed in claim 1 two sides windowed plug hole, the diameter of described gear oil drop is than the large 10mil in the aperture of the first through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110315991 CN102378499B (en) | 2011-10-18 | 2011-10-18 | Method for manufacturing window plug holes at two sides during PCB (Printed Circuit Board) resistance welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110315991 CN102378499B (en) | 2011-10-18 | 2011-10-18 | Method for manufacturing window plug holes at two sides during PCB (Printed Circuit Board) resistance welding |
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| Publication Number | Publication Date |
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| CN102378499A CN102378499A (en) | 2012-03-14 |
| CN102378499B true CN102378499B (en) | 2013-03-20 |
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| CN 201110315991 Active CN102378499B (en) | 2011-10-18 | 2011-10-18 | Method for manufacturing window plug holes at two sides during PCB (Printed Circuit Board) resistance welding |
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Families Citing this family (19)
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| CN102686031B (en) * | 2012-05-25 | 2015-06-24 | 湖南鸿瑞新材料股份有限公司 | Pre-windowing process of high-density interconnected PCB (printed circuit board) with buried blind hole |
| CN102795006B (en) * | 2012-08-09 | 2015-07-08 | 皆利士多层线路版(中山)有限公司 | Green oil silk-printing method for printed circuit board |
| CN103079362B (en) * | 2012-12-25 | 2015-02-18 | 深圳市星河电路有限公司 | Method for preventing oil from bleeding from solder resist ink plug hole |
| CN103220888B (en) * | 2013-04-18 | 2016-03-02 | 梅州市志浩电子科技有限公司 | Printed circuit board (PCB) mesh screen plughole method |
| CN104640376A (en) * | 2013-11-13 | 2015-05-20 | 宏启胜精密电子(秦皇岛)有限公司 | Circuit board plug hole forming method |
| CN103794516B (en) * | 2014-01-24 | 2016-06-08 | 广州兴森快捷电路科技有限公司 | A kind of encapsulating products manufacture method of ladder welding resistance |
| CN104411119A (en) * | 2014-10-30 | 2015-03-11 | 胜宏科技（惠州）股份有限公司 | Method for processing reddening of circuit board solder mask conducting holes |
| CN105338744B (en) * | 2015-10-22 | 2018-11-06 | 江门崇达电路技术有限公司 | The production method of PCB with two-sided lid oil via and spray tin surfaces processing |
| CN106132111A (en) * | 2016-07-26 | 2016-11-16 | 江门崇达电路技术有限公司 | A kind of manufacture method of the wiring board with different solder mask colors |
| CN108513451A (en) * | 2017-02-28 | 2018-09-07 | 胜宏科技（惠州）股份有限公司 | A kind of production method of the wiring board through-hole solder mask consent depth more than 80% |
| CN107333397A (en) * | 2017-08-07 | 2017-11-07 | 胜宏科技（惠州）股份有限公司 | A kind of wiring board control deeply etching method |
| CN110662364B (en) * | 2019-11-06 | 2021-08-10 | 深南电路股份有限公司 | Manufacturing method of circuit board solder mask and circuit board |
| CN110831336B (en) * | 2019-11-11 | 2020-10-27 | 珠海崇达电路技术有限公司 | Resin hole plugging method for large-aperture back drilling hole |
| CN111182743B (en) * | 2020-01-06 | 2021-06-04 | 江门崇达电路技术有限公司 | Manufacturing method of ceramic-based circuit board |
| CN112672544A (en) * | 2020-12-31 | 2021-04-16 | 昆山苏杭电路板有限公司 | Solder mask developing method for metallized hole of PCB (printed circuit board) |
| CN112492764B (en) * | 2021-01-27 | 2021-04-20 | 四川英创力电子科技股份有限公司 | Method for eliminating solder resist ink in through hole of printed circuit board |
| CN112930043A (en) * | 2021-01-29 | 2021-06-08 | 生益电子股份有限公司 | PCB ink hole plugging method and PCB |
| CN113747674A (en) * | 2021-08-31 | 2021-12-03 | 智恩电子(大亚湾)有限公司 | Thick copper plate printing method and ink |
| CN113966101B (en) * | 2021-12-21 | 2022-03-18 | 广东科翔电子科技股份有限公司 | Small pad windowing manufacturing method of high-precision Mini-LED PCB |
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| CN102378499A (en) | 2012-03-14 |
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Address after: 523127 Dongcheng District City, Guangdong province (with sand) science and Technology Industrial Park Road, No. 33 vibration with the number of Patentee after: Shengyi electronic Limited by Share Ltd Address before: 523000 Dongcheng District (Dongguan) science and Technology Industrial Park, Guangdong, China Patentee before: Dongguan Shengyi Electronics Ltd. |