CN108617109A - A kind of High Efficiency PC B copper cores component brown jig and preparation method thereof - Google Patents
A kind of High Efficiency PC B copper cores component brown jig and preparation method thereof Download PDFInfo
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- CN108617109A CN108617109A CN201810286819.7A CN201810286819A CN108617109A CN 108617109 A CN108617109 A CN 108617109A CN 201810286819 A CN201810286819 A CN 201810286819A CN 108617109 A CN108617109 A CN 108617109A
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- gong
- high efficiency
- jig
- brown
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Classifications
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- 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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
- H05K3/383—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by microetching
-
- 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- ing And Chemical Polishing (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
Abstract
The present invention relates to the fields PCB, disclose a kind of High Efficiency PC B copper cores component brown jig, it includes the loading plate of a rigidity for being equipped with multiple rectangle bearing grooves, and bearing groove is equipped with multiple rows of length and bearing groove strip slot of same size, and the strip slot is equipped with multiple through-holes.The invention also discloses its production methods, include the following steps：A. jig makes Data Design；B. sawing sheet；C. internal layer etches；D. it presses；E. it drills；F. it etches；G. gong plate；H. it cleans.
Description
Technical field
The present invention relates to the fields PCB, and in particular to a kind of High Efficiency PC B copper cores component brown jig and preparation method thereof.
Background technology
As electronic information technology develops towards multifunction, to meet product high-performance, high assembled density, signal integrity
Property and signal receive with the shielding requirements such as matching, increase PCB and assemble the heat dissipation area of component, ensure surface component
Stability etc. has fully expanded answering for PCB using the design scheme for occurring the embedment heat dissipation copper component inside PCB in design
Use function.
However, the brown of pre-buried copper component makes difficult larger, the immersion of generally use beaker or the red adhesive tape of attached high temperature
The method for crossing horizontal brown line carries out brown.Such method exist such as easy brown wipe flower, liquid medicine residual dry do not do it is bad, in turn
Lead to the high-risk sexual function failure such as PP filling cavities, interface debonding plate bursting, and that there are operating efficiencies is low, easily falls cylinder, snap-gauge etc. asks
Topic, strong influence production efficiency, cannot be satisfied production efficiently, the demand of quality high reliability.
The traditional handicraft in our company combined circuit board field designs and produces the special brown jig of pre-buried copper core component, puts forth effort to solve
Certainly copper block oxide wipes flower, liquid medicine residual, dries not dry etc. bad, improves brown production efficiency, promotes filling out for pre-buried copper component and PP
It fills and combines reliability, ensure product quality, capture and expand for company and bury copper class product and segment market occupation rate, to improve enterprise
Industry profit and promotion company synthesized competitiveness.
Invention content
The purpose of the present invention is to provide the good PCB copper cores component brown jig of a kind of clever structure, brown effect and
A kind of production efficiency is high, can produce the jig production method of the brown jig of better quality product.
The specific technical solution of the present invention is as follows：
A kind of High Efficiency PC B copper cores component brown jig includes the loading plate of a rigidity equipped with multiple rectangle bearing grooves, special
Sign is that the bearing groove is equipped with multiple rows of length and bearing groove strip slot of same size, is set on the strip slot
There are multiple through-holes.
Further, carrying version thickness is 4.5mm, and the depth of the bearing groove is 3.6mm, and the depth of strip slot is
0.4mm。
Further, it is 28.5mm that the specification of bearing groove, which is width, and length 40.5mm, strip well width is 3.5mm,
Length is 28.5mm, a diameter of 3.5mm of the through-hole.The design specification size of bearing groove in loading plate：W 28.5mm×L
40.5mm × H 3.6mm disclosure satisfy that the brown needs of current 80% any of the above specification copper core component, can effectively reduce and control
The specification type and storage management of tool provide possibility for the standardized management of jig.
A kind of High Efficiency PC B copper cores component brown jig production method, includes the following steps：
A. jig makes Data Design；B. sawing sheet；C. internal layer etches；D. it presses；E. it drills；F. it etches；G. gong plate；H. it cleans；
It includes the design of gong band and drilling design that jig, which makes Data Design,.
Further, the technical parameter of sawing sheet step includes：Cutting knife knife diameter 3-4mm, feed speed 2-3 m/min.
Further, the technical parameter of internal layer etching step includes：5.0 ± 1.0 m/min, drying section is arranged in transmission speed
85 ± 5 DEG C of temperature etches section parameter：50 ± 5 DEG C of temperature, 3.0 ± 0.5 Kg/cm2 of upper spray pressure, lower spray pressure 2.5 ±
0.5 Kg/cm2, liquid medicine control 2 ± 1 N of HCL equivalents, HCL proportions 1.3 ± 0.1, Cu2+140 ± 20 g/L of concentration.
Further, the step of pressing include it is pre- fold, heat, pressing, tearing plate, milling side open, wherein pre- folded folded structure（Folded structure is
For the construction of lamination）It it is PP layers between adjacent two layers substrate；The technical parameter of pressing includes：It heats parameters of temperature and 300- is set
320 DEG C, time 180-200 s；Press hot press period：200-210 DEG C of maximum temperature, total duration 150-180min, heating rate
2.2-2.5℃/min。
Further, the technical parameter of drilling includes：Lamination number is folded for 1PNL/, and the knife diameter for boring nozzle is 3-4mm, bores the nozzle longevity
Life control：350 times, within grinding number 3 times（M3）, tool parameters be rotating speed 25-30Krmp, feed 0.8 ± 0.2m/min of speed,
Withdrawing 12 ± 1m/min of speed, Z axis compensation -0.3mm.
Further, gong plate includes the following steps：A. gong plate is carried out according to gong band, gong board parameter is：Lamination 1PNL/ is folded,
Knife diameter 2-3mm divides smart gong+thick gong gong plate, rotating speed 20-30Krmp twice, cuts fast 0.4-0.8m/min, withdrawing speed 4-6m/
Min, feed speed 5-8m/min control deep compensation 0.2mm；B. gong plate is carried out according to gong band, gong board parameter is：Lamination 1PNL/ is folded,
Using angle gong knife, knife diameter 3.5-4mm；Rotating speed 15-20Krmp cuts fast 0.2-0.4m/min, withdrawing speed 3-5.0m/min, into
Knife speed 8-10m/min..
Further, the technical parameter of cleaning is：Transmission speed 3-4m/min, 2.5 ± 0.5 Kg/ of washing spray pressure
Cm2,85 ± 5 DEG C of drying temperature.
The efficient brown jig of the present invention takes dimension copper core component, is put into jig bearing groove, and one is put per slot, with
After can carry out brown.Wherein, through-hole plays the role of the perforation to the browns element such as water, solution, blowing；The strip of setting
Slot can reduce the contact area of carrying groove bottom and copper core component copper face, and isolation contact surface moisture avoids that tension absorption is caused to be asked
Topic, meanwhile, because wind action is blown in spray pressure, drying, play the use of convective exchange.Reduce brown wipe flower, liquid medicine residual,
Copper component baking is not dry etc. bad, and the high-risk sexual function failure such as PP filling cavities, interface debonding plate bursting, greatly carries caused by
Production efficiency is risen, meets the needs of efficient production, quality high reliability, further the type PCB to be pushed to realize automatically
Change, large-scale production provides possibility.
The production method of the High Efficiency PC B copper core component brown jigs of the present invention, passes through series of process flow and parameter control
System, improves the quality and production efficiency of jig.
Description of the drawings
Fig. 1 is the vertical view of the efficient brown jig of pre-buried copper core component of an embodiment.
Fig. 2 is the sectional view of the pre-buried efficient brown jig of copper core component in Fig. 1.
Fig. 3 is the partial top view of the pre-buried efficient brown jig of copper core component in an embodiment.
Specific implementation mode
Efficient brown jig of the present invention and preparation method thereof is made below in conjunction with specific embodiment and attached drawing further detailed
Thin description.
Embodiment 1
As depicted in figs. 1 and 2, a kind of High Efficiency PC B copper cores component brown jig, including a loading plate 1,1 plate thickness of loading plate
4.5mm, 1 size of loading plate are 413mm*545mm, and loading plate 1, which is equipped with, often arranges ten rectangular bearing grooves 2 of totally ten platoon leaders, carrying
The specification of slot 2 is width 28.5mm* length 40.5mm, and the depth of bearing groove 2 is 3.6mm, and the mutual spacing of each bearing groove 2 is
10mm；The concrete structure of bearing groove 2 is as shown in Figures 2 and 3, there is ten recessed strip slots 21, strip slot 21 in bearing groove 2
Depth is 0.4mm, width 3.5mm* length 28.5mm, and each strip slot 21 is interior to be equipped with seven through-holes 22, and through-hole 22 is mutual
Away from for 0.5mm, a diameter of 3.5mm of through-hole 22.
The production method of High Efficiency PC B copper core component brown jigs, includes the following steps：
A. jig makes Data Design；B. sawing sheet；C. internal layer etches；D. it presses；E. it drills；F. it etches；G. gong plate；H. it cleans；
It includes the design of gong band and drilling design that jig, which makes Data Design, and the design of gong band includes：
Gong band one：10 row * of milling, 10 rows amount to 100 slot units on substrate, and each slot unit is with each other away from 10mm, slot unit ruler
Very little to be designed as wide 28.5mm long 40.5mm, milling plate depth is 3.6mm, and milling cutter tool path pattern is rectangular-ambulatory-plane feed；
Gong band two：The 7 row elongated slot of milling in each slot unit, elongated slot are designed and sized to wide 3.5mm long 28.5mm, and milling plate is deep
Degree is 4.0mm ± 0.1mm；Milling cutter tool path pattern is left and right directions straight line feed；
Drilling is designed as：The elongated slot internal drilling described in every row, aperture 3.5mm, spacing 0.5mm between each hole, distance slot or so
Side spacing 0.5mm.
Wherein, the technical parameter of sawing sheet step includes：Cutting knife knife diameter 4.0mm, feed speed 2.5m/min.
Wherein, the technical parameter of internal layer etching step includes：5.0 ± 1.0 m/min, drying section temperature is arranged in transmission speed
85 ± 5 DEG C, etch section parameter：50 ± 5 DEG C of temperature, 3.0 ± 0.5 Kg/cm2 of upper spray pressure, lower spray pressure 2.5 ± 0.5
Kg/cm2, liquid medicine control 2 ± 1 N of HCL equivalents, HCL proportions 1.3 ± 0.1, Cu2+140 ± 20 g/L of concentration.
Wherein, the step of pressing include it is pre- fold, heat, pressing, tearing plate, milling side open, wherein pre- folded folded structure be 3 1.5mm
Copper clad laminate is PP layers between adjacent two layers substrate；The technical parameter of pressing includes：Heat parameters of temperature be arranged 300 DEG C, when
Between 180 s；Press hot press period, 205 DEG C, total duration 161min of maximum temperature, 2.2 DEG C/min of heating rate.
Wherein, the technical parameter of the drilling includes：Lamination number is folded for 1PNL/, and nozzle is bored within secondary 3 using grinding（M3 with
It is interior）, the knife diameter for boring nozzle is 3.5mm, bores nozzle life control 350 times, tool parameters be S rotating speeds 25Krmp, F feed speed 0.8 ±
0.2m/min, D withdrawing 12 ± 1m/min of speed, Z axis compensation -0.3mm.
Wherein, the gong plate includes the following steps：A. gong plate is carried out according to gong band one, gong board parameter is：Lamination 1PNL/
Folded, knife diameter 2.0mm divides smart gong+thick gong gong plate, rotating speed 26Krmp twice, cuts fast 0.4m/min, withdrawing speed 5.0m/min, into
Knife speed 8m/min controls deep compensation 0.2mm；B. gong plate is carried out according to gong band two, gong board parameter is：Lamination 1PNL/ is folded, using oblique
Mouth gong knife, knife diameter 3.55mm, rotating speed 20Krmp cut fast 0.4m/min, withdrawing speed 5.0m/min, feed speed 10m/min.
Wherein, the technical parameter of cleaning is：Transmission speed 3.2m/min washes 2.5 ± 0.5 Kg/cm2 of spray pressure, dries
Dry 85 ± 5 DEG C of temperature.
The brown jig of the present embodiment is applied in actual production, is had the following effects that：
1. loading plate can effectively reduce the material of the customization special copper-clad plates of 4.5mm by 3 1.5mm copper-clad plates pressing self-controls
Cost about 5-8%；
2. compared to traditional beaker infusion method, brown improving productivity is 200% or more；Compared to the red tape method of attached high temperature,
Brown improving productivity is 90% or more；
3. it is abnormal to prevent cylinder, snap-gauge, reduces brown wiping flower, liquid medicine residual, copper component and dry not dry etc. the bad problem of qualities, reduction
Copper core component and pcb board scrap about 3%.
Although description of this invention combination embodiments above carries out, those skilled in the art
Member can carry out many replacements according to above-mentioned content, modifications and variations, be obvious.Therefore, it is all it is such substitute,
It improves and variation is included in the spirit and scope of appended claims.
Claims (10)
1. a kind of High Efficiency PC B copper cores component brown jig includes the loading plate of a rigidity equipped with multiple rectangle bearing grooves,
It is characterized in that, the bearing groove is equipped with multiple rows of length and bearing groove strip slot of same size, on the strip slot
Equipped with multiple through-holes.
2. High Efficiency PC B copper cores component brown jig according to claim 1, which is characterized in that the carrying version thickness
Depth for 4.5mm, the bearing groove is 3.6mm, and the depth of strip slot is 0.4mm.
3. High Efficiency PC B copper cores component brown jig according to claim 2, which is characterized in that the rule of the bearing groove
It is 28.5mm that lattice, which are width, length 40.5mm, and strip well width is 3.5mm, length 28.5mm, the through-hole it is straight
Diameter is 3.5mm.
4. a kind of production method of the High Efficiency PC B copper core component brown jigs described in claim 1-3 any one, feature exist
In including the following steps：
A. jig makes Data Design；B. sawing sheet；C. internal layer etches；D. it presses；E. it drills；F. it etches；G. gong plate；H. it cleans；
It includes the design of gong band and drilling design that the jig, which makes Data Design,.
5. the production method of High Efficiency PC B copper cores component brown jig according to claim 4, which is characterized in that described
The technical parameter of sawing sheet step includes：Cutting knife knife diameter 3-4mm, feed speed 2-3 m/min.
6. the production method of High Efficiency PC B copper cores component brown jig according to claim 4, which is characterized in that described
The technical parameter of internal layer etching step includes：5.0 ± 1.0 m/min, 85 ± 5 DEG C of drying section temperature, etching is arranged in transmission speed
Section parameter：50 ± 5 DEG C of temperature, upper spray pressure 3.0 ± 0.5 Kg/cm2, lower 2.5 ± 0.5 Kg/cm2 of spray pressure, liquid medicine control
2 ± 1 N of HCL equivalents processed, HCL proportions 1.3 ± 0.1, Cu2+140 ± 20 g/L of concentration.
7. the production method of High Efficiency PC B copper cores component brown jig according to claim 4, which is characterized in that described
The step of pressing include it is pre- fold, heat, pressing, tearing plate, milling side open, wherein it is PP that pre- folded folded structure, which is between adjacent two layers substrate,
Layer；The technical parameter of pressing includes：It heats parameters of temperature and 300-320 DEG C, time 180-200 s is set, press hot press period：Most
200-210 DEG C of high-temperature, total duration 150-180min, 2.2-2.5 DEG C of heating rate/min.
8. the production method of High Efficiency PC B copper cores component brown jig according to claim 4, which is characterized in that described
The technical parameter of drilling includes：Lamination number is folded for 1PNL/, and the knife diameter for boring nozzle is 3-4mm, bores nozzle life control：300-350 times,
Mill≤3, tool parameters are rotating speed 25-30Krmp, feed 0.8 ± 0.2m/min of speed, withdrawing 12 ± 1m/min of speed, Z axis compensation-
0.3mm。
9. the production method of High Efficiency PC B copper cores component brown jig according to claim 4, which is characterized in that described
Gong plate includes the following steps：A. gong plate is carried out according to gong band, gong board parameter is：Lamination 1PNL/ is folded, knife diameter 2-3mm, and point smart gong+
Thick gong gong plate, rotating speed 20-30Krmp twice, cut fast 0.4-0.8m/min, withdrawing speed 4-6m/min, feed speed 5-8m/min,
The deep compensation 0.2mm of control；B. gong plate is carried out according to gong band, gong board parameter is：Lamination 1PNL/ is folded, using angle gong knife, knife diameter
3.5-4mm；Rotating speed 15-20Krmp cuts fast 0.2-0.4m/min, withdrawing speed 3-5.0m/min, feed speed 8-10m/min.
10. the production method of High Efficiency PC B copper cores component brown jig according to claim 4, which is characterized in that described
The technical parameter of cleaning is：Transmission speed 3-4m/min washes 2.5 ± 0.5 Kg/cm2 of spray pressure, drying temperature 85 ± 5
℃。
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| CN201810286819.7A CN108617109A (en) | 2018-03-30 | 2018-03-30 | A kind of High Efficiency PC B copper cores component brown jig and preparation method thereof |
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| CN201810286819.7A CN108617109A (en) | 2018-03-30 | 2018-03-30 | A kind of High Efficiency PC B copper cores component brown jig and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109392255A (en) * | 2018-12-06 | 2019-02-26 | 奥士康科技股份有限公司 | A kind of PCB product copper block oxide processing jig and its storage vehicle |
| CN112235954A (en) * | 2020-10-29 | 2021-01-15 | 惠州市特创电子科技有限公司 | Processing method of circuit board |
| CN112601347A (en) * | 2020-12-22 | 2021-04-02 | 京东方科技集团股份有限公司 | PCB assembly and display module |
| CN113630969A (en) * | 2021-10-11 | 2021-11-09 | 四川英创力电子科技股份有限公司 | Copper embedding device for printed circuit board and printed circuit board processing method |
| CN114980513A (en) * | 2022-05-07 | 2022-08-30 | 智恩电子(大亚湾)有限公司 | Efficient PCB copper core assembly brown oxidation jig and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03203390A (en) * | 1989-12-29 | 1991-09-05 | Sony Corp | Manufacture of printed board |
| CN102228747A (en) * | 2011-07-01 | 2011-11-02 | 常州三泰科技有限公司 | Split separation blade for splitter of liquid chromatogram |
| CN202263690U (en) * | 2011-09-07 | 2012-06-06 | 浙江帝龙新材料股份有限公司 | Dyeing tank for aluminum alloy coiled materials |
| CN102711383A (en) * | 2012-06-27 | 2012-10-03 | 深圳市星河电路有限公司 | Processing method for high-thickness small-aperture high-frequency copper substrate |
| CN106211630A (en) * | 2016-08-31 | 2016-12-07 | 开平依利安达电子第三有限公司 | A kind of circuit board manufacturing jig of brown copper billet |
-
2018
- 2018-03-30 CN CN201810286819.7A patent/CN108617109A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03203390A (en) * | 1989-12-29 | 1991-09-05 | Sony Corp | Manufacture of printed board |
| CN102228747A (en) * | 2011-07-01 | 2011-11-02 | 常州三泰科技有限公司 | Split separation blade for splitter of liquid chromatogram |
| CN202263690U (en) * | 2011-09-07 | 2012-06-06 | 浙江帝龙新材料股份有限公司 | Dyeing tank for aluminum alloy coiled materials |
| CN102711383A (en) * | 2012-06-27 | 2012-10-03 | 深圳市星河电路有限公司 | Processing method for high-thickness small-aperture high-frequency copper substrate |
| CN106211630A (en) * | 2016-08-31 | 2016-12-07 | 开平依利安达电子第三有限公司 | A kind of circuit board manufacturing jig of brown copper billet |
Non-Patent Citations (1)
| Title |
|---|
| 黄德业 等: "埋铜块电路板的制作方法", 《印制电路信息》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109392255A (en) * | 2018-12-06 | 2019-02-26 | 奥士康科技股份有限公司 | A kind of PCB product copper block oxide processing jig and its storage vehicle |
| CN109392255B (en) * | 2018-12-06 | 2024-01-19 | 奥士康科技股份有限公司 | PCB product copper billet brown ization is with processing tool and deposit car thereof |
| CN112235954A (en) * | 2020-10-29 | 2021-01-15 | 惠州市特创电子科技有限公司 | Processing method of circuit board |
| CN112601347A (en) * | 2020-12-22 | 2021-04-02 | 京东方科技集团股份有限公司 | PCB assembly and display module |
| CN113630969A (en) * | 2021-10-11 | 2021-11-09 | 四川英创力电子科技股份有限公司 | Copper embedding device for printed circuit board and printed circuit board processing method |
| CN113630969B (en) * | 2021-10-11 | 2022-02-01 | 四川英创力电子科技股份有限公司 | Copper embedding device for printed circuit board and printed circuit board processing method |
| CN114980513A (en) * | 2022-05-07 | 2022-08-30 | 智恩电子(大亚湾)有限公司 | Efficient PCB copper core assembly brown oxidation jig and manufacturing method thereof |
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