CN207070454U - A kind of adhering device of printed circuit board conducting resinl - Google Patents

A kind of adhering device of printed circuit board conducting resinl Download PDF

Info

Publication number
CN207070454U
CN207070454U CN201720968932.4U CN201720968932U CN207070454U CN 207070454 U CN207070454 U CN 207070454U CN 201720968932 U CN201720968932 U CN 201720968932U CN 207070454 U CN207070454 U CN 207070454U
Authority
CN
China
Prior art keywords
circuit board
printed circuit
scraper
conducting resinl
printed
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.)
Active
Application number
CN201720968932.4U
Other languages
Chinese (zh)
Inventor
李�杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OMICRON MICROWAVE TECHNOLOGY Co Ltd
Original Assignee
OMICRON MICROWAVE TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by OMICRON MICROWAVE TECHNOLOGY Co Ltd filed Critical OMICRON MICROWAVE TECHNOLOGY Co Ltd
Priority to CN201720968932.4U priority Critical patent/CN207070454U/en
Application granted granted Critical
Publication of CN207070454U publication Critical patent/CN207070454U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Manufacturing Of Printed Wiring (AREA)

Abstract

A kind of adhering device of printed circuit board conducting resinl, it includes printed steel mesh, printed circuit board, positioning board and printing scraper, printed circuit board is arranged in the groove in positioning board, printed steel mesh is arranged on the top of printed circuit board, it is to be slidably connected between printing scraper and positioning board, the first fitting opening is provided with adjacent two corners on printed steel mesh, the first assembles post is provided with the adjacent two corners of positioning board, the first fitting opening overlaps with the first assembles post.The utility model sets printing scraper at positioning board, being scraped using printing scraper on printed steel mesh makes conducting resinl flow into printed circuit board ground plane by the open pore of steel mesh, so be advantageous to control the amount of conducting resinl, save conducting resinl, the bonding efficiency of printed circuit board is improved, is beneficial to the lower process for clearing up conducting resinl together.

Description

A kind of adhering device of printed circuit board conducting resinl
Technical field
Printed circuit board field is the utility model is related to, in particular to a kind of bonding of printed circuit board conducting resinl Device.
Background technology
With the rapid development of electronic technology, electronic product is constantly towards miniaturization, lightweight, high speed, multifunction And the direction of high reliability is developed so that semiconductor device in electronic product etc. is also sent out towards more pins and fine-pitch Exhibition.In face of this development trend, it is desirable to which the printed circuit board of bearing semiconductor part is also towards miniaturization, lightweight and high density The direction of change is developed.In order to meet this requirement, the printed circuit board of high density interconnection is developed and develops, but using conventional system The high-density printed circuit board for making technique productions has been increasingly difficult to the growth requirement for meeting semiconductor and electronic product, therefore compels The manufacturing process of existing high-density printed circuit board will be lifted by being essential, and it is met more highdensity interlayer interconnection.
At this stage, most small-signal microwave printed circuit plates and fine circuit printed circuit board all using conducting resinl by its with Cavity bonding in printed circuit board.Generally it is to the coating method of conducting resinl:Under the microscope, using small brushes by conducting resinl Uniform one layer of brush behind, then bonds together printed circuit board and cavity in printed circuit board, but in printed circuit Following shortcoming occurs during plate is Nian Jie with cavity:1) cause speed slow using hairbrush coating conducting resinl;2) led in coating The amount of conducting resinl can not be effectively controlled during electric glue;3) it is impossible to ensure that conducting resinl applies during conducting resinl is coated Cover all consistent;4) traditional hairbrush coating conducting resinl mode can have a strong impact on down one of borehole cleaning process.
Utility model content
The purpose of this utility model is to provide a kind of adhering device of printed circuit board conducting resinl, the smearing of its conducting resinl Speed is fast, smears uniformly, and can effectively control the amount of conducting resinl, does not interfere with down one of borehole cleaning process also.
What embodiment of the present utility model was realized in:
A kind of adhering device of printed circuit board conducting resinl, it include printed steel mesh, printed circuit board, positioning board and Printing scraper, printed circuit board are arranged in the groove in positioning board, and printed steel mesh is arranged on the top of printed circuit board, It is to be slidably connected between printing scraper and positioning board, the first fitting opening is provided with the adjacent two corners on printed steel mesh, The first assembles post is provided with the adjacent two corners of positioning board, the first fitting opening overlaps with the first assembles post.
In the utility model preferred embodiment, the first opening is additionally provided with above-mentioned printed steel mesh, the first opening is set Put at 0.7mm ± 0.05mm apart from the edge of printed circuit board.
In the utility model preferred embodiment, first through hole is provided with above-mentioned printed circuit board, first through hole Opening shape and the opening shape of the first opening are complementary.
In the utility model preferred embodiment, printed circuit board printing groove, print are provided with above-mentioned positioning board The shape of circuit board printing groove processed is consistent with the shape of complementation.
In the utility model preferred embodiment, the angle between above-mentioned printing scraper and printed steel mesh is 45 °~ 60°。
In the utility model preferred embodiment, above-mentioned printing scraper is fixed including taping knife handle, wing and scraper Part, taping knife handle are arranged on the side of wing, and scraper fixture is arranged on the both ends of wing, and taping knife handle is fixed with scraper Part is adjacent, two contact asides of scraper fixture and positioning board.
In the utility model preferred embodiment, above-mentioned positioning board includes scraper outer rail, and scraper outer rail is arranged on The both sides of positioning board, scraper fixture include rail and scraper sliding block in scraper, and rail is arranged on scraper fixture in scraper Inwall, scraper sliding block are arranged in scraper in rail.
In the utility model preferred embodiment, above-mentioned printing scraper also includes scraper air bag, and scraper air bag is arranged on Between taping knife handle and wing.
In the utility model preferred embodiment, the thickness of above-mentioned printed steel mesh is arranged to 0.12mm.
In the utility model preferred embodiment, the thickness of the depth ratio printed circuit board of above-mentioned printed circuit board printing groove Spend small 0.03mm~0.05mm.
The beneficial effect of the utility model embodiment is:Printing scraper is set at positioning board, uses printing scraper Being scraped on printed steel mesh makes conducting resinl flow into printed circuit board ground plane by the open pore of steel mesh, is so advantageous to control and leads The amount of electric glue, conducting resinl is saved, improve the bonding efficiency of printed circuit board, be beneficial to the lower process for clearing up conducting resinl together. And the first fitting opening and the first assembles post are set between printed steel mesh and positioning board, makes scraper plate using process In, printed circuit board is not easily shifted, ensures that conducting resinl is smeared in place.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the adhering device structural representation in the utility model embodiment;
Fig. 2 is the printed steel mesh structural representation in the utility model embodiment;
Fig. 3 is the printed circuit plate structure schematic diagram in the utility model embodiment;
Fig. 4 is the positioning tool plate structure schematic diagram in the utility model embodiment;
Fig. 5 is the printing scraper structural representation in the utility model embodiment.
Icon:100- printed steel mesh;200- printed circuit boards;300- positioning boards;400- printing scrapers;110- first Opening;The fitting openings of 120- first;210- first through hole;310- prints groove;The assembles posts of 320- first;410- wings;420- Taping knife handle;430- scraper fixtures;330- scraper outer rails;440- scraper air bags.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship be based on orientation shown in the drawings or position relationship, or The utility model product using when the orientation usually put or position relationship, be for only for ease of description the utility model and letter Change description, rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and Operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for area Divide description, and it is not intended that instruction or hint relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and It is to be slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent the structure Must be fully horizontal, but can be slightly tilted.
In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, Or it is integrally connected;Can be mechanical connection or electrical connection;Can be joined directly together, intermediary can also be passed through It is indirectly connected, can is the connection of two element internals.For the ordinary skill in the art, can be managed with concrete condition Solve concrete meaning of the above-mentioned term in the utility model.
Other feature and advantage of the present utility model will illustrate in subsequent specification, also, partly from specification Become apparent, or understood by implementing the utility model embodiment.The purpose of this utility model and other advantages can Realize and obtain by specifically noted structure in the specification, claims and accompanying drawing write.
First embodiment
Overlapped between printed steel mesh 100, printed circuit board 200 and positioning board 300 in the utility model embodiment Together, and between printed steel mesh 100, printed circuit board 200 and positioning board 300 through hole and groove are both provided with, profit Conducting resinl is filled into corresponding position with the gap between through hole and groove, and by the extruding of scraper, makes to pass through The conducting resinl that printed steel mesh opening is flowed into the ground plane of printed circuit board is uniform, and scraper can be by unnecessary conduction Glue scrapes off, and saves the use of conducting resinl.
Fig. 1-Fig. 4 is referred to, the present embodiment provides a kind of adhering device of printed circuit board conducting resinl, and it includes printing steel Net 100, printed circuit board 200, positioning board 300 and printing scraper 400, printed circuit board 200 are arranged on positioning board In 300 groove, printed steel mesh 100 is arranged on the top of printed circuit board 200, printing scraper 400 and positioning board 300 Between be slidably connected.
Fig. 2 is referred to, dash area is the first opening 110 and the first fitting opening 120 in figure.First opening passes through drilling Processing is obtained, and the first opening 110 in the present embodiment is obtained using laser drill.First is provided with printed steel mesh 100 to open Mouth 110, the first opening 110 and the distance at the edge of printed circuit board 200 in the present embodiment are 0.7mm ± 0.05mm, printing The thickness of steel mesh 100 is arranged to 0.12mm.
Wherein, printed steel mesh 100 includes first side and second side, second side and the printing electricity of printed steel mesh 100 3rd contacts side surfaces of road plate 200, the first side of printed steel mesh 100 are in contact with the bottom surface of printing scraper 400.First opening 110 carry out drilling processing to printed steel mesh 100 by default position obtains, and drilling processing includes laser drill, machine drilling Or punching etc., wherein laser drill further includes infrared laser drilling and Ultra-Violet Laser drilling etc., in the present embodiment Drilling processing all be laser drill, using laser drill be easier control hole depth.
The first fitting opening 120 is additionally provided with printed steel mesh 100, the first fitting opening 120 is also by default shape Setting, the shape of the first fitting opening 120 matches with the first assembles post in positioning board 300, and in the present embodiment the One fitting opening 120 is arranged at the adjacent angular of printed steel mesh 100, and fitting opening in the present embodiment is arranged to columned Through hole, can also be the through hole of other shapes in other embodiments, such as rectangular-shape through hole or other special-shaped through holes.
Fig. 3 is referred to, first through hole 210 is provided with printed circuit board 200, dash area is first through hole 210 in figure With the first fitting opening 120, the shape of first through hole 210 and the first 110 shapes of opening in printed steel mesh 100 are complementary, printing Circuit board 200 includes the 3rd side and the 4th side, the 3rd side of printed circuit board 200 and the second side of printed steel mesh 100 Face is bonded, and the 4th side of printed circuit board 200 is bonded with the 5th side of positioning board 300.
For printed circuit board 200, first through hole 210 refers to realize the different circuits of printed circuit board 200 The hole run through between 200 different line layers of printed circuit board that the electrical equipment of layer is set in succession, typically before circuit board is made, It can preset first according to the electrical attachment requirements of the printed circuit board 200 and be used to realize difference in the printed circuit board 200 The position for the through hole being electrically connected between line layer and pore size, and then when making the printed circuit board 200, in printing electricity The predetermined position of printed steel mesh 100 of the top of road plate 200 carries out drilling processing, to form the first opening 110.
Fig. 4 is referred to, positioning board 300 is concavely provided with printed circuit board printing groove 310, printing in the present embodiment Circuit board prints groove 310 and obtained also by laser cutting, and the shape of printed circuit board printing groove 310 is by presetting the default of galley Shape obtains, the small 0.03mm~0.05mm of thickness of the depth ratio printed circuit board 200 of printed circuit board printing groove 310 so that In assembling process printed circuit board 200 can some protrusion so that between printed steel mesh 100 and positioning board 300 Can be by projection, in wiper conducting resinl, printed circuit board will not produce displacement, and conducting resinl is applied to jut, makes The place for needing to smear conducting resinl can precisely be arrived by obtaining conducting resinl.
Fig. 5 is referred to, positioning board 300 includes the 5th side and the 6th side, the 5th side of positioning board 300 It is bonded with the 4th side of printed circuit board 200, and scraper outer rail 330 is additionally provided with two sides of positioning board 300, Two sides and the 5th side at scraper outer rail 330 are adjacent with the 6th side, and scraper outer rail 330 coordinates reality with printing scraper 400 Existing printing scraper 400 steadily moves.
Positioning board 300 also includes the first assembles post 320, and the height of the first assembles post 320 in the present embodiment is set 1mm ± 0.05mm is set to, the height of the first assembles post 320 in other embodiments is it can also be provided that other values.In this implementation The first assembles post 320 in example is arranged to cylindric, can also be other shapes in other embodiments, such as rectangular-shape or Other Special-Shaped Columns.
First assembles post 320 is engaged with the first fitting opening 120, for ensureing fixing printing steel mesh 100 and positioning work Loading board 300 will not produce displacement when printing conducting resinl, and the first assembles post 320 is arranged on the adjacent angular on positioning board 300 Place, and can be overlapped between the first assembles post 320 and the first fitting opening 120, so that printed steel mesh 100 and positioning work It is bonded between loading board 300.
Fig. 5 is referred to, printing scraper 400 includes wing 410, taping knife handle 420 and scraper fixture 430, scraper hand Handle 420 is arranged on the side of wing 410, and scraper fixture 430 is by immobilising device such as screw etc., by scraper fixture 430 The opposite end of wing 410 is fixedly installed on, and scraper fixture 430 is adjacent with taping knife handle 420.
Scraper air bag 440 is additionally provided between wing 410 and taping knife handle 420, the top of wing 410 is provided with First groove, the bottom of taping knife handle 420 are provided with the second groove, and scraper air bag 440 is fixedly installed on the first groove and second Between groove, scraper air bag 440 is the air bag of strip, and when printing scraper 400 is in operation, taping knife handle 420 is whole when being pressed downward 45 °~60 ° of angle between individual printing scraper 400 and printed steel mesh 100 be present, the angle for being kept for 45 °~60 ° is to ensure Just add and scrape between wing 410 and taping knife handle 420 without conductive glue residua on the blade coating path of printing scraper 400 Knife air bag 440, make being more uniformly stressed on wing 410 and the contact surface of printed steel mesh 100, can be more equal by conducting resinl Even is applied in printed steel mesh 100.
Scraper fixture 430 is arranged on the both ends of wing 410, and is provided with and scrapes on the inwall of scraper fixture 430 Rail in knife, is additionally provided with scraper sliding block in scraper in rail, rail and scraper sliding block and positioning work in the scraper in scraper fixture 430 Scraper outer rail 330 in loading board 300 coordinates, and printing scraper 400 is realized steady movement.
The operation principle of printing scraper 400 is:When printing scraper 400 is in operation, taping knife handle 420 is pressed downward, so as to For scraper air bag 440 by the pressure of taping knife handle 420, scraper air bag 440 pushes up downwards wing 410, makes wing 410 and print Pressure between steel plate processed evenly, while rail and scraper sliding block and positioning board in the scraper in scraper fixture 430 Scraper outer rail 330 on 300 coordinates, and printing scraper 400 is realized steady movement, makes the conducting resinl of smearing more uniform.
The operation principle of the adhering device of the conducting resinl of printed circuit board 200 is:Printed circuit board 200 is placed on positioning Printed circuit board in working plate 300 is printed in groove 310, the first assembling set in the adjacent two corners on positioning board 300 Post 320 passes through the first fitting opening 120 set in the adjacent two corners of printed steel mesh 100, by the first assembles post 320 and the first dress Assembled with opening 120, so as to which printed circuit board is fixed between printed steel mesh 100 and positioning board 300;By conducting resinl Place of the printed steel mesh 100 without opening is placed, conducting resinl was scraped to first in printed steel mesh 100 using printing scraper 400 It is open at 110, the angle between printing scraper 400 and printed steel mesh 100 is maintained at 45 °~60 °, makes not having on blade coating path Conductive glue residua.
In summary, the utility model is simple to operate compared with traditional hairbrush coating conducting resinl, it is not necessary to microscope, Printing speed is fast, and the utility model sets printing scraper at positioning board, is scraped using printing scraper on printed steel mesh Conducting resinl is flowed into printed circuit board ground plane by the open pore of steel mesh, be so advantageous to control the amount of conducting resinl, saving is led Electric glue, the bonding efficiency of printed circuit board is improved, be beneficial to the lower process for clearing up conducting resinl together.And in printed steel mesh and The first fitting opening and the first assembles post are set between positioning board, making scraper plate, printed circuit board is not easy in use It is mobile, ensure that conducting resinl is smeared in place.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (9)

1. a kind of adhering device of printed circuit board conducting resinl, it is characterised in that it includes printed steel mesh, printed circuit board, determined Position working plate and printing scraper, the printed circuit board are arranged in the groove in the positioning board, the printed steel mesh Be arranged on the top of the printed circuit board, the printing scraper relative to the positioning board slidably, the printing steel Online adjacent two corners are provided with the first fitting opening, are provided with the adjacent two corners of the positioning board and the described first dress The first assembles post coordinated with opening, the printing scraper include taping knife handle, wing and scraper fixture, the scraper hand Handle is arranged on the side of the wing, and the scraper fixture is arranged on the both ends of the wing, the taping knife handle with The scraper fixture is adjacent, two contact asides of the scraper fixture and the positioning board.
2. the adhering device of printed circuit board conducting resinl according to claim 1, it is characterised in that on the printed steel mesh The first opening is additionally provided with, first opening is arranged on apart from the edge of the printed circuit board at 0.7mm ± 0.05mm.
3. the adhering device of printed circuit board conducting resinl according to claim 2, it is characterised in that the printed circuit board On be provided with first through hole, the opening shape of the first through hole and the opening shape of the described first opening are complementary.
4. the adhering device of printed circuit board conducting resinl according to claim 3, it is characterised in that the positioning board On be provided with printed circuit board printing groove, the shape of printed circuit board printing groove is consistent with the complementary shape.
5. the adhering device of printed circuit board conducting resinl according to claim 1, it is characterised in that the printing scraper with Angle between the printed steel mesh is 45 °~60 °.
6. the adhering device of printed circuit board conducting resinl according to claim 1, it is characterised in that the positioning board Including scraper outer rail, the scraper outer rail is arranged on the both sides of the positioning board, and the scraper fixture is included in scraper Rail and scraper sliding block, rail is arranged on the inwall of the scraper fixture in the scraper, and the scraper sliding block is arranged on described scrape In knife in rail.
7. the adhering device of printed circuit board conducting resinl according to claim 1, it is characterised in that the printing scraper is also Including scraper air bag, the scraper air bag is arranged between the taping knife handle and the wing.
8. the adhering device of printed circuit board conducting resinl according to claim 1, it is characterised in that the printed steel mesh Thickness is arranged to 0.12mm.
9. the adhering device of printed circuit board conducting resinl according to claim 1, it is characterised in that the printed circuit board Print the small 0.03mm~0.05mm of thickness of the depth ratio printed circuit board of groove.
CN201720968932.4U 2017-08-04 2017-08-04 A kind of adhering device of printed circuit board conducting resinl Active CN207070454U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720968932.4U CN207070454U (en) 2017-08-04 2017-08-04 A kind of adhering device of printed circuit board conducting resinl

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720968932.4U CN207070454U (en) 2017-08-04 2017-08-04 A kind of adhering device of printed circuit board conducting resinl

Publications (1)

Publication Number Publication Date
CN207070454U true CN207070454U (en) 2018-03-02

Family

ID=61519679

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720968932.4U Active CN207070454U (en) 2017-08-04 2017-08-04 A kind of adhering device of printed circuit board conducting resinl

Country Status (1)

Country Link
CN (1) CN207070454U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501433A (en) * 2018-11-06 2019-03-22 东方环晟光伏(江苏)有限公司 Efficient imbrication component scraper and efficient imbrication component coating method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501433A (en) * 2018-11-06 2019-03-22 东方环晟光伏(江苏)有限公司 Efficient imbrication component scraper and efficient imbrication component coating method
CN109501433B (en) * 2018-11-06 2023-10-10 环晟光伏(江苏)有限公司 Efficient tile folding assembly scraper and efficient tile folding assembly sizing method

Similar Documents

Publication Publication Date Title
CN101318401B (en) Screen printing plate and manufacturing method thereof
CN102883558B (en) Manufacturing method of single plating hole copper
CN108495474A (en) The method of 3D printing wiring board
CN104519671A (en) Carbon ink PCB and manufacturing method thereof
CN103220888B (en) Printed circuit board (PCB) mesh screen plughole method
CN106973526A (en) A kind of PCB preparation method and PCB
CN106455291B (en) A kind of copper-based printed board structure of high-cooling property metal and preparation method thereof
CN207070454U (en) A kind of adhering device of printed circuit board conducting resinl
CN201383900Y (en) Blind hole type circuit board
CN104199571B (en) The production method of fexible film functional sheet
CN109041459B (en) Manufacturing method of groove bottom pattern stepped groove and PCB
CN101594740A (en) Be embedded into the circuit board and the method thereof of electronic device
CN102883519A (en) Blind-hole type two-sided thermal-conduction circuit board and manufacturing process thereof
CN1832666A (en) Method for contacting conductive tracks of a printed circuit board
CN110324991A (en) A kind of preparation method of composite circuit board
CN110167287A (en) The production method of new energy OBC blind hole plate
CN107172815A (en) A kind of preparation method of bent printed circuit board
CN106455364A (en) Electroplating and hole-filling technology for printed circuit board
CN1665376A (en) Production process of high precision silver slurry perforated multilayer carbon membrane surface mounting board
CN110267440A (en) A kind of manufacturing method of COF flexible substrate
JPH02125495A (en) Manufacture of printed circuit board
CN102625591B (en) Method for manufacturing solder mask of unit plate by using electrostatic spray coating machine
CN103596371A (en) Method for manufacturing circuit board
CN102821548A (en) Board edge graphical tool manufacturing method preventing electrostatic spraying board from falling off
CN112969303A (en) Circuit printing method based on 3D printing and prepared high-power circuit board

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant