CN109788650A - A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur - Google Patents
A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur Download PDFInfo
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- CN109788650A CN109788650A CN201910101716.3A CN201910101716A CN109788650A CN 109788650 A CN109788650 A CN 109788650A CN 201910101716 A CN201910101716 A CN 201910101716A CN 109788650 A CN109788650 A CN 109788650A
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- copper sheet
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Abstract
The present invention provides a kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, which comprises the following steps: by super thick copper sheet 2-4 block/folded progress drilling processing, every total copper thickness of axis reaches 15O-350Z；It is 1.8-3.4mm that nozzle diameter is bored when drilling processing；Copper treatment is drawn to the film is carried out at core material PTH insert hole.The present invention is effective to improve super thick copper sheet Burr Problem when not influencing production efficiency (parameter, lamination number are constant), improves customer satisfaction and manufacturing process ability.
Description
Technical field
The invention belongs to PCB processing technique fields, and in particular to a kind of improvement side of super thick copper sheet PTH plug-in unit hole bur
Method.
Background technique
The thickness of usual copper is known as super thick copper sheet, super-thick copper multilayer board not less than 350um (10OZ) Above Transmission Lines plate
It is a kind of printed circuit board of special defects, the main feature of such printed circuit board: the general number of plies has good at 4-12 layers
Carry current capacity and excellent thermal diffusivity, qualitative reliability requires high, is mainly used in network energy, communication, automobile, high-power
Power supply, clean energy resource solar energy etc., therefore have a vast market development prospect.It is rapid with this kind of product demand
Increase, the following super thick copper sheet will necessarily become one of another trend of PCB development.
Process is being manufactured, because internal layer circuit designs thick copper, easily occurring hole inner burr after drilling influences Client card
Etc. abnormal phenomenon, the reliability and plug-in unit efficiency of consumer product can be reduced.
Summary of the invention
In view of this, the present invention provides a kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, the present invention is not influencing
It is effective to improve super thick copper sheet Burr Problem in the case of production efficiency (parameter, lamination number are constant), it improves customer satisfaction and work
Skill process capability.
The technical solution of the present invention is as follows: a kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, which is characterized in that packet
Include following steps: by super thick copper sheet 2-4 block/folded progress drilling processing, every total copper thickness of axis reaches 15O-350Z；It is bored when drilling processing
Nozzle diameter is 1.8-3.4mm；Copper treatment is drawn to the film is carried out at core material PTH insert hole.
Further, it is small 0.1-0.4mm more unilateral than boring nozzle diameter to draw Copper treatment size for the film of the PTH insert hole.
It further, further include the method for super-thick copper twist drill hole breaking, comprising the following steps:
S1, it opens a window to the line film design blank for needing bore position, while to the welding resistance film design for needing bore position； S2,
In contraposition, aligned with the MARK point of route；S3, by development, etch and go film process, etch away orifice ring position
Copper sheet.
The present invention is redesigned by the film when making route, designs blank at the position that need to be drilled, simultaneously
Windowing is designed to the welding resistance film for needing boring sites in curing, after aligning, exposing, is etched the copper sheet at orifice ring position in etching line
Fall, reduce the integral hardness of plate, drill so as to subsequent, reduces the generation of breaking phenomenon.The present invention is due to only needing
Route, the welding resistance film are designed, the production cycle is substantially reduced, improves production efficiency.
Further, in step s3, thick copper sheet is etched by the way of etching twice.
Further, speed when etching is 400-680mm/min.Further, in contraposition, tolerance is ± 2mil.
Further, in the step S3, the ink of orifice ring portion faces is washed out by development treatment.
In the present invention, when boring under drilling, because of copper thickness super thick, copper has certain ductility, and copper wire is not completely cut through, copper facing
Copper wire burr shape is formed afterwards, and high speed rotation cuts residual copper.By drawing Copper treatment to the progress film at core material PTH insert hole,
Copper thickness after completing internal layer etching work procedure is set to reduce reservation copper facing round edge again；Under conditions of drilling parameter is constant, the method for the present invention
Producing finished product improves burr generation, increases customer satisfaction degree.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with the embodiment of the present invention, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.
Embodiment 1
A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, which comprises the following steps: by super thick copper sheet 2
Block/folded progress drilling processing, every total copper thickness of axis reach 200Z；It is 2.3mm that nozzle diameter is bored when drilling processing；To core material PTH
The film is carried out at insert hole draws Copper treatment.
Further, it is small 0.2mm more unilateral than boring nozzle diameter to draw Copper treatment size for the film of the PTH insert hole.
It further, further include the method for super-thick copper twist drill hole breaking, comprising the following steps:
S1, it opens a window to the line film design blank for needing bore position, while to the welding resistance film design for needing bore position； S2,
In contraposition, aligned with the MARK point of route；S3, by development, etch and go film process, etch away orifice ring position
Copper sheet.
The present invention is redesigned by the film when making route, designs blank at the position that need to be drilled, simultaneously
Windowing is designed to the welding resistance film for needing boring sites in curing, after aligning, exposing, is etched the copper sheet at orifice ring position in etching line
Fall, reduce the integral hardness of plate, drill so as to subsequent, reduces the generation of breaking phenomenon.The present invention is due to only needing
Route, the welding resistance film are designed, the production cycle is substantially reduced, improves production efficiency.
Further, in step s3, thick copper sheet is etched by the way of etching twice.
Further, speed when etching is 550mm/min.Further, in contraposition, tolerance is ± 2mil.
Further, in the step S3, the ink of orifice ring portion faces is washed out by development treatment.
In the present invention, when boring under drilling, because of copper thickness super thick, copper has certain ductility, and copper wire is not completely cut through, copper facing
Copper wire burr shape is formed afterwards, and high speed rotation cuts residual copper.By drawing Copper treatment to the progress film at core material PTH insert hole,
Copper thickness after completing internal layer etching work procedure is set to reduce reservation copper facing round edge again；Under conditions of drilling parameter is constant, the method for the present invention
Producing finished product improves burr generation, increases customer satisfaction degree.
Embodiment 2
A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, which comprises the following steps: by super thick copper sheet 2
Block/folded progress drilling processing, every total copper thickness of axis reach 15OZ；It is 1.8mm that nozzle diameter is bored when drilling processing；To core material PTH
The film is carried out at insert hole draws Copper treatment.
Further, it is small 0.1mm more unilateral than boring nozzle diameter to draw Copper treatment size for the film of the PTH insert hole.
It further, further include the method for super-thick copper twist drill hole breaking, comprising the following steps:
S1, it opens a window to the line film design blank for needing bore position, while to the welding resistance film design for needing bore position； S2,
In contraposition, aligned with the MARK point of route；S3, by development, etch and go film process, etch away orifice ring position
Copper sheet.
The present invention is redesigned by the film when making route, designs blank at the position that need to be drilled, simultaneously
Windowing is designed to the welding resistance film for needing boring sites in curing, after aligning, exposing, is etched the copper sheet at orifice ring position in etching line
Fall, reduce the integral hardness of plate, drill so as to subsequent, reduces the generation of breaking phenomenon.The present invention is due to only needing
Route, the welding resistance film are designed, the production cycle is substantially reduced, improves production efficiency.
Further, in step s3, thick copper sheet is etched by the way of etching twice.
Further, speed when etching is 400mm/min.Further, in contraposition, tolerance is ± 2mil.
Further, in the step S3, the ink of orifice ring portion faces is washed out by development treatment.
In the present invention, when boring under drilling, because of copper thickness super thick, copper has certain ductility, and copper wire is not completely cut through, copper facing
Copper wire burr shape is formed afterwards, and high speed rotation cuts residual copper.By drawing Copper treatment to the progress film at core material PTH insert hole,
Copper thickness after completing internal layer etching work procedure is set to reduce reservation copper facing round edge again；Under conditions of drilling parameter is constant, the method for the present invention
Producing finished product improves burr generation, increases customer satisfaction degree.
Embodiment 3
A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, which comprises the following steps: by super thick copper sheet 4
Block/folded progress drilling processing, every total copper thickness of axis reach 350Z；It is 3.4mm that nozzle diameter is bored when drilling processing；To core material PTH
The film is carried out at insert hole draws Copper treatment.
Further, it is small 0.4mm more unilateral than boring nozzle diameter to draw Copper treatment size for the film of the PTH insert hole.
It further, further include the method for super-thick copper twist drill hole breaking, comprising the following steps:
S1, it opens a window to the line film design blank for needing bore position, while to the welding resistance film design for needing bore position； S2,
In contraposition, aligned with the MARK point of route；S3, by development, etch and go film process, etch away orifice ring position
Copper sheet.
The present invention is redesigned by the film when making route, designs blank at the position that need to be drilled, simultaneously
Windowing is designed to the welding resistance film for needing boring sites in curing, after aligning, exposing, is etched the copper sheet at orifice ring position in etching line
Fall, reduce the integral hardness of plate, drill so as to subsequent, reduces the generation of breaking phenomenon.The present invention is due to only needing
Route, the welding resistance film are designed, the production cycle is substantially reduced, improves production efficiency.
Further, in step s3, thick copper sheet is etched by the way of etching twice.
Further, speed when etching is 680mm/min.Further, in contraposition, tolerance is ± 2mil.
Further, in the step S3, the ink of orifice ring portion faces is washed out by development treatment.
In the present invention, when boring under drilling, because of copper thickness super thick, copper has certain ductility, and copper wire is not completely cut through, copper facing
Copper wire burr shape is formed afterwards, and high speed rotation cuts residual copper.By drawing Copper treatment to the progress film at core material PTH insert hole,
Copper thickness after completing internal layer etching work procedure is set to reduce reservation copper facing round edge again；Under conditions of drilling parameter is constant, the method for the present invention
Producing finished product improves burr generation, increases customer satisfaction degree.
Embodiment 4
A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, which comprises the following steps: by super thick copper sheet 3
Block/folded progress drilling processing, every total copper thickness of axis reach 220Z；It is 2.8mm that nozzle diameter is bored when drilling processing；To core material PTH
The film is carried out at insert hole draws Copper treatment.
Further, it is small 0.3mm more unilateral than boring nozzle diameter to draw Copper treatment size for the film of the PTH insert hole.
It further, further include the method for super-thick copper twist drill hole breaking, comprising the following steps:
S1, it opens a window to the line film design blank for needing bore position, while to the welding resistance film design for needing bore position； S2,
In contraposition, aligned with the MARK point of route；S3, by development, etch and go film process, etch away orifice ring position
Copper sheet.
The present invention is redesigned by the film when making route, designs blank at the position that need to be drilled, simultaneously
Windowing is designed to the welding resistance film for needing boring sites in curing, after aligning, exposing, is etched the copper sheet at orifice ring position in etching line
Fall, reduce the integral hardness of plate, drill so as to subsequent, reduces the generation of breaking phenomenon.The present invention is due to only needing
Route, the welding resistance film are designed, the production cycle is substantially reduced, improves production efficiency.
Further, in step s3, thick copper sheet is etched by the way of etching twice.
Further, speed when etching is 620mm/min.Further, in contraposition, tolerance is ± 2mil.
Further, in the step S3, the ink of orifice ring portion faces is washed out by development treatment.
In the present invention, when boring under drilling, because of copper thickness super thick, copper has certain ductility, and copper wire is not completely cut through, copper facing
Copper wire burr shape is formed afterwards, and high speed rotation cuts residual copper.By drawing Copper treatment to the progress film at core material PTH insert hole,
Copper thickness after completing internal layer etching work procedure is set to reduce reservation copper facing round edge again；Under conditions of drilling parameter is constant, the method for the present invention
Producing finished product improves burr generation, increases customer satisfaction degree.
Embodiment 5
A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, which comprises the following steps: by super thick copper sheet 3
Block/folded progress drilling processing, every total copper thickness of axis reach 320Z；It is 3.2mm that nozzle diameter is bored when drilling processing；To core material PTH
The film is carried out at insert hole draws Copper treatment.
Further, it is small 0.25mm more unilateral than boring nozzle diameter to draw Copper treatment size for the film of the PTH insert hole.
It further, further include the method for super-thick copper twist drill hole breaking, comprising the following steps:
S1, it opens a window to the line film design blank for needing bore position, while to the welding resistance film design for needing bore position； S2,
In contraposition, aligned with the MARK point of route；S3, by development, etch and go film process, etch away orifice ring position
Copper sheet.
The present invention is redesigned by the film when making route, designs blank at the position that need to be drilled, simultaneously
Windowing is designed to the welding resistance film for needing boring sites in curing, after aligning, exposing, is etched the copper sheet at orifice ring position in etching line
Fall, reduce the integral hardness of plate, drill so as to subsequent, reduces the generation of breaking phenomenon.The present invention is due to only needing
Route, the welding resistance film are designed, the production cycle is substantially reduced, improves production efficiency.
Further, in step s3, thick copper sheet is etched by the way of etching twice.
Further, speed when etching is 650mm/min.Further, in contraposition, tolerance is ± 2mil.
Further, in the step S3, the ink of orifice ring portion faces is washed out by development treatment.
In the present invention, when boring under drilling, because of copper thickness super thick, copper has certain ductility, and copper wire is not completely cut through, copper facing
Copper wire burr shape is formed afterwards, and high speed rotation cuts residual copper.By drawing Copper treatment to the progress film at core material PTH insert hole,
Copper thickness after completing internal layer etching work procedure is set to reduce reservation copper facing round edge again；Under conditions of drilling parameter is constant, the method for the present invention
Producing finished product improves burr generation, increases customer satisfaction degree.
The economic benefit of generation
The method of 1-5 through the embodiment of the present invention, can meet Client card demand, reduce to complain and do over again and scrap and cost:
Monthly the production area of this item number wastes for 30,000/moon up to 3,000 square meters, the comprehensive cost that averagely reduces；
Annual save the cost: 30,000/monthly December=360,000 yuan *.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.It is noted that the technical characteristic being not described in detail in the present invention, it can be by appointing
One prior art is realized.
Claims (7)
1. a kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur, which comprises the following steps: by super thick copper sheet
2-4 block/folded progress drilling processing, every total copper thickness of axis reach 15O-350Z；It is 1.8-3.4mm that nozzle diameter is bored when drilling processing；It is right
The film is carried out at core material PTH insert hole draws Copper treatment.
2. the ameliorative way of super thick copper sheet PTH plug-in unit hole bur according to claim 1, which is characterized in that the PTH is inserted
It is small 0.1-0.4mm more unilateral than boring nozzle diameter that the film in part hole draws Copper treatment size.
3. the ameliorative way of super thick copper sheet PTH plug-in unit hole bur according to claim 1, which is characterized in that further include surpassing
The method of thick copper sheet drilling breaking, comprising the following steps:
S1, it opens a window to the line film design blank for needing bore position, while to the welding resistance film design for needing bore position； S2,
In contraposition, aligned with the MARK point of route；S3, by development, etch and go film process, etch away orifice ring position
Copper sheet.
4. the ameliorative way of super thick copper sheet PTH plug-in unit hole bur according to claim 3, which is characterized in that in step S3
In, thick copper sheet is etched by the way of etching twice.
5. the ameliorative way of super thick copper sheet PTH plug-in unit hole bur according to claim 3, which is characterized in that when etching
Speed is 400-680mm/min.
6. the ameliorative way of super thick copper sheet PTH plug-in unit hole bur according to claim 3, which is characterized in that in contraposition,
Tolerance is ± 2mil.
7. the ameliorative way of super thick copper sheet PTH plug-in unit hole bur according to claim 3, which is characterized in that in the step
In rapid S3, the ink of orifice ring portion faces is washed out by development treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910101716.3A CN109788650A (en) | 2019-02-01 | 2019-02-01 | A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur |
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| CN201910101716.3A CN109788650A (en) | 2019-02-01 | 2019-02-01 | A kind of ameliorative way of super thick copper sheet PTH plug-in unit hole bur |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111372379A (en) * | 2020-04-02 | 2020-07-03 | 胜宏科技（惠州）股份有限公司 | Manufacturing method for improving hole diameter precision of PTH hole |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0943392A2 (en) * | 1998-03-18 | 1999-09-22 | Mitsubishi Gas Chemical Company, Inc. | Method of making through hole with laser, copper-clad laminate suitable for making hole, and auxiliary material for making hole |
| JP2003209365A (en) * | 2002-01-17 | 2003-07-25 | Mitsubishi Gas Chem Co Inc | Method for forming through-hole on multilayer double side copper-plated board by laser |
| CN103068167A (en) * | 2012-12-20 | 2013-04-24 | 景旺电子科技(龙川)有限公司 | Method for resolving copper sheet delaminating problem in drilling metal substrate thick copper plate independent pad |
| CN104093277A (en) * | 2014-07-11 | 2014-10-08 | 景旺电子科技(龙川)有限公司 | Method for improving cutter breaking condition in hole drilling process of thick copper plate |
| CN106332456A (en) * | 2016-08-31 | 2017-01-11 | 奥士康精密电路（惠州）有限公司 | Method for improving groove-making burrs before copper plating |
-
2019
- 2019-02-01 CN CN201910101716.3A patent/CN109788650A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0943392A2 (en) * | 1998-03-18 | 1999-09-22 | Mitsubishi Gas Chemical Company, Inc. | Method of making through hole with laser, copper-clad laminate suitable for making hole, and auxiliary material for making hole |
| JP2003209365A (en) * | 2002-01-17 | 2003-07-25 | Mitsubishi Gas Chem Co Inc | Method for forming through-hole on multilayer double side copper-plated board by laser |
| CN103068167A (en) * | 2012-12-20 | 2013-04-24 | 景旺电子科技(龙川)有限公司 | Method for resolving copper sheet delaminating problem in drilling metal substrate thick copper plate independent pad |
| CN104093277A (en) * | 2014-07-11 | 2014-10-08 | 景旺电子科技(龙川)有限公司 | Method for improving cutter breaking condition in hole drilling process of thick copper plate |
| CN106332456A (en) * | 2016-08-31 | 2017-01-11 | 奥士康精密电路（惠州）有限公司 | Method for improving groove-making burrs before copper plating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111372379A (en) * | 2020-04-02 | 2020-07-03 | 胜宏科技（惠州）股份有限公司 | Manufacturing method for improving hole diameter precision of PTH hole |
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Application publication date: 20190521 |
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