CN108391378B - The production method of minute grooves on a kind of improvement wiring board - Google Patents
The production method of minute grooves on a kind of improvement wiring board Download PDFInfo
- Publication number
- CN108391378B CN108391378B CN201810291001.4A CN201810291001A CN108391378B CN 108391378 B CN108391378 B CN 108391378B CN 201810291001 A CN201810291001 A CN 201810291001A CN 108391378 B CN108391378 B CN 108391378B
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- China
- Prior art keywords
- slot
- slot position
- short side
- wiring board
- drill point
- 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.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
- H05K3/0047—Drilling of holes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/0214—Back-up or entry material, e.g. for mechanical drilling
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/0228—Cutting, sawing, milling or shearing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
Abstract
The present invention relates to wiring board production technical field, specially a kind of production method for improving minute grooves on wiring board.The present invention when making pilot hole, fillet processing hole and slot short side using identical the first drill point of drill point of diameter by being drilled, and using the processing flow on milling flute length side again after subdrilling fillet processing hole after drill hole and processing groove short side, the flatness and accuracy of the accuracy of pilot hole and the short side of slot and long side can be improved, to prevent made there is the problem of slot of fillet design deforms, especially for the processing of minute grooves, the precision of made minute grooves significantly improves, and the problem of slotless deformity occurs.Meanwhile the method for the present invention is simple and easy, and production process is easy to monitor.
Description
Technical field
The present invention relates to wiring board production technical field more particularly to a kind of production sides for improving minute grooves on wiring board
Method.
Background technique
Printed circuit board is also known as wiring board (PCB, Printed Circuit Board).The production of wiring board includes route
Two links of design and manufacture, the manufacture of wiring board are designed as foundation with the route of early period, and manufacturing process is generally as follows: by design
It is required that core material, which is cut into required size → pad pasting on core material →, in sawing sheet process uses internal layer film aligning
Exposure → development remove not by the film of photocuring with formed the layers of copper of non-envelope covering on inner figure → etching core material with
It forms internal layer circuit → taking off film → each core material is stacked and is formed as one by high-temperature laminating more by centainly putting in order
Laminate → make hole metallization → electric plating of whole board that layers of copper thickness be made in hole to reach design according to borehole data drill flute hole → electroless copper plating is wanted
→ outer-layer circuit that production is connected with internal layer on multilayer boards → is asked silk-screen solder mask and to pass through film aligning on multilayer boards
Exposure and imaging makes the rear processes such as solder mask → surface treatment → molding, detection.
Wherein, it when boring the slot that four angles are fillet design on multilayer boards, especially bores for following process into small gold
It when the minute grooves of categoryization slot (PTH), is usually made using drill point or gong knife, in the production process, first with drill point in slot
Four Angle Positions of position (on wiring board for make the region for forming slot) drill out a pilot hole respectively, then proceed to use drill point or
Gong knife makes slot along the sideline of slot position.Since the position of the pilot hole when four Angle Positions make pilot hole will appear little deviation, draw
The shape that the deviation of hole site will lead to made slot deforms, especially for small-sized minute grooves, even if micro-
Small deviation can also significantly affect the shape of slot, and it is lopsided to lead to slot, and minute grooves are generally used for transmission microwave letter on wiring board
Number, it is abnormal that the deformity of slot can be such that microwave signal occurs in transmission process.
Summary of the invention
Easily there is the problem of slot deformity for the existing minute grooves of production in the circuit board in the present invention, provides a kind of simple and easy
Improvement wiring board minute grooves production method, the problem that can effectively prevent slot deformity occur.
To achieve the above object, the present invention uses following technical scheme.
The production method of minute grooves on a kind of improvement wiring board forms the region of slot and is known as on the wiring board for making
The quadrangle of slot position, the slot and slot position is fillet, comprising the following steps:
S1, a pilot hole is bored respectively at four fillets of slot position using the first drill point.
Preferably, in step S1, when the slot becomes metallization slot for making, the slot compares the metallization slot,
The unilateral pre- big value of slot is equal to the metal layer thickness of metallization groove groove wall.
S2, respectively each pilot hole is continued to process using the first drill point, forms the fillet of slot at four fillets of slot position.
Preferably, in step S2, respectively each pilot hole is continued to process using the first drill point, fillet processing is bored in slot position
Hole, the center of circle in fillet processing hole and the straight line where the center of circle of corresponding pilot hole are parallel with the long side of slot position.
S3, it is drilled in slot position using the first drill point to produce the short side of slot, i.e. the bore path of the first drill point is edge
Slot position short side is drilled from one end of slot position short side to the other end of slot position short side.
S4, it is drilled in slot position in a manner of step S3 to produce another short side of slot.
S5, the long side for producing slot along the long side milling of slot position using gong knife.
S6, another long side for producing slot along another long side milling of slot position using gong knife, so that slot be made.
Compared with prior art, the beneficial effects of the present invention are: the present invention is by processing hole and slot in production pilot hole, fillet
Short side when drilled using identical the first drill point of drill point of diameter, and hole is processed using subdrilling fillet after drill hole
And the processing flow on milling flute length side again after processing groove short side, the straight of the accuracy of pilot hole and the short side of slot and long side can be improved
Degree and accuracy, thus prevent it is made there is the problem of slot of fillet design deforms, especially for minute grooves
Processing, the precision of made minute grooves significantly improves, and the problem of slotless deformity occurs.Meanwhile the method for the present invention is simply easy
Row, and production process is easy to monitor.
Detailed description of the invention
Fig. 1 is the schematic diagram of slot position described in embodiment；
Fig. 2 is the schematic diagram in embodiment after the corner location of the slot position distinguishes drill hole；
Fig. 3 is the schematic diagram for boring fillet in embodiment at an angle of the slot position and processing angle；
Fig. 4 be described in embodiment using the first drill point in short side of the drilling to produce slot in slot position the first drill point
Bore path；
Fig. 5 is that the schematic diagram after two short sides of slot is made in slot position in embodiment；
Fig. 6 is the schematic diagram of slot described in embodiment.
Specific embodiment
In order to more fully understand technology contents of the invention, combined with specific embodiments below to technical solution of the present invention
It is described further and illustrates.
Embodiment
The present embodiment provides a kind of production methods of minute grooves on improvement wiring board, make a length of 0.8mm in the circuit board,
Width is 0.5mm and quadrangle is the slot of fillet design, and the diameter of fillet is 0.15mm.The slot of the size is minute grooves.
It is known as slot position 10 as shown in Figure 1, being used to make the region for forming slot on wiring board, the quadrangle of slot position 10 is circle
Angle, the shape and size of slot position 10 and the shape and size of slot are consistent.
The production methods of minute grooves the following steps are included:
(1) as shown in Fig. 2, boring a pilot hole respectively at four fillets of slot position using the first drill point that diameter is 0.15mm
21、22、23、24。
(2) as shown in figure 3, continuing to process to each pilot hole respectively using the first drill point, fillet is bored in slot position and processes hole 30,
The center of circle in fillet processing hole 30 and the straight line where the center of circle of corresponding pilot hole are parallel with the long side of slot position.Added by the step
Work makes the fillet that slot is formed at four fillets of slot position.
(3) it is drilled in slot position using the first drill point to produce the short side of slot, i.e. the bore path of the first drill point is edge
Slot position short side is drilled from one end of slot position short side to the other end of slot position short side, dotted line in the bore path such as Fig. 4 of the first drill point
Shown in circle.
(4) it is drilled in slot position in a manner of step (3) to produce another short side of slot.The two of slot are made in slot position
Schematic diagram after short side is as shown in Figure 5.
(5) long side of slot is produced along the long side milling of slot position using gong knife.
(6) another long side of slot is produced along another long side milling of slot position using gong knife, so that slot, such as Fig. 6 be made
It is shown.
Method makes the minute grooves of 100 above-mentioned shape and size through this embodiment, and qualified, no deformity, which is scrapped, asks
Topic.
In other embodiments, the slot (non-metallic) made on circuit boards such as above-described embodiment is added for subsequent
Metallization slot is formed after work, when making slot, pre- big processing is done to slot, slot compares the metallization slot, the unilateral pre- big value of slot
Equal to the metal layer thickness of metallization groove groove wall.
It is described above that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand,
But embodiments of the present invention are not represented and are only limitted to this, any technology done according to the present invention extends or recreation, is sent out by this
Bright protection.
Claims (2)
1. a kind of production method for improving minute grooves on wiring board, which is characterized in that form slot for making on the wiring board
Region be slot position, the quadrangle of the slot and slot position is fillet, comprising the following steps:
S1, a pilot hole is bored respectively at four fillets of slot position using the first drill point；
S2, respectively each pilot hole is continued to process using the first drill point, fillet is bored in slot position and processes hole, fillet processing hole
The center of circle and the straight line where the center of circle of corresponding pilot hole are parallel with the long side of slot position, and the circle of slot is formed at four fillets of slot position
Angle；
S3, it is drilled in slot position using the first drill point to produce the short side of slot, i.e. the bore path of the first drill point is along slot position
Short side is drilled from one end of slot position short side to the other end of slot position short side；
S4, it is drilled in slot position in a manner of step S3 to produce another short side of slot；
S5, the long side for producing slot along the long side milling of slot position using gong knife；
S6, another long side for producing slot along another long side milling of slot position using gong knife, so that slot be made.
2. a kind of production method for improving minute grooves on wiring board according to claim 1, which is characterized in that the slot is used for
Production becomes metallization slot, and the slot compares the metallization slot, and the unilateral pre- big value of slot is equal to the metal of metallization groove groove wall
Thickness degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291001.4A CN108391378B (en) | 2018-04-03 | 2018-04-03 | The production method of minute grooves on a kind of improvement wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291001.4A CN108391378B (en) | 2018-04-03 | 2018-04-03 | The production method of minute grooves on a kind of improvement wiring board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108391378A CN108391378A (en) | 2018-08-10 |
| CN108391378B true CN108391378B (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810291001.4A Active CN108391378B (en) | 2018-04-03 | 2018-04-03 | The production method of minute grooves on a kind of improvement wiring board |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109121307A (en) * | 2018-09-30 | 2019-01-01 | 广州兴森快捷电路科技有限公司 | The processing method of the through slot of circuit board |
| CN113275625B (en) * | 2021-05-31 | 2023-01-06 | 重庆水泵厂有限责任公司 | Machining method of discontinuous deep annular cavity |
| CN114211564A (en) * | 2021-11-09 | 2022-03-22 | 江门市奔力达电路有限公司 | Machining method of square slotted hole and drilling machine |
| CN114919007A (en) * | 2022-06-28 | 2022-08-19 | 湖北金禄科技有限公司 | Square slot drilling and milling method for circuit board and circuit board |
| CN117641742A (en) * | 2023-12-20 | 2024-03-01 | 皆利士多层线路版(中山)有限公司 | Process for square and round slot holes of circuit board |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5245491B2 (en) * | 2008-03-27 | 2013-07-24 | 大日本印刷株式会社 | Manufacturing method of component built-in wiring board, component built-in wiring board |
| CN104717846B (en) * | 2014-12-16 | 2018-04-03 | 江门崇达电路技术有限公司 | The preparation method of metallization slotted eye in a kind of PCB |
| CN105307400A (en) * | 2015-10-27 | 2016-02-03 | 大连崇达电路有限公司 | Processing method of square slot of printed wiring board |
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- 2018-04-03 CN CN201810291001.4A patent/CN108391378B/en active Active
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| Publication number | Publication date |
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| CN108391378A (en) | 2018-08-10 |
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