KR102546576B1 - Manufacturing Method of SUS Plate for manufacturing Copper Foil - Google Patents

Abstract

The present invention relates to a method for manufacturing a copper foil substrate, comprising the steps of laser cutting the substrate (step 1); Round processing the laser-cut substrate (step 2); polishing the rounded substrate (step 3); and immersing the polished substrate in an anti-corrosion composition to coat it (step 4); It is a technical feature to include, and has the advantage of extending the service life of the copper foil manufacturing support plate by preventing rust from being generated by steam and gas, and preventing the occurrence of deformation after a certain period of time, so that the copper foil There is an advantage in that the shelf life of the manufacturing substrate can be extended.

Description

Method of manufacturing a support plate for manufacturing copper foil {Manufacturing Method of SUS Plate for manufacturing Copper Foil}

The present invention relates to a method for manufacturing a copper foil manufacturing substrate, and more particularly, to a copper foil manufacturing substrate capable of preventing rust from being generated by steam and gas and preventing deformation after a certain period of time has elapsed. It is about the manufacturing method of.

With the development of electronic communication technology, various electronic communication devices such as smart phones, tablet PCs, notebook computers, or digital cameras are equipped with various sensing functions and multimedia functions. Various sensor modules are key components for realizing these sensing and multimedia functions. The importance of image input means such as ultra-small camera modules is increasing. In particular, smart phones not only have a small size for easy portability, but also need to implement various functions, as well as various sensor modules that exhibit high performance and various sensor modules that exhibit high performance in consideration of consumers' desire to enjoy clear multimedia contents, and high-resolution subminiature camera modules. The demand to include is increasing.

In this way, the subminiature sensor module or camera module is manufactured by bonding various sensor chips or CCD or CMOS image sensor chips to a PCB on a thin film on which a circuit of a predetermined pattern is printed. The role of the PCB, which supplies and transmits signals at the same time, is very important. On the other hand, it is common to take an array method of printing a plurality of unit PCBs on a film original plate of a certain size at once and then cutting them individually for the convenience of manufacturing a micro-sized sensor or camera module PCB. Since such an array PCB is very thin and flexible, when bonding sensor chips to each unit PCB, if the flatness is not good, bonding defects frequently occur, which eventually leads to defects in the sensor module. In order to solve this problem, a method of improving flatness of the array PCB at the time of bonding with the sensor chip by bonding the array PCB on a thin metal plate with an adhesive is also used. The thin metal plate used at this time is a stainless plate called a so-called SUS (Steel Use Stainless) plate.

Since the substrate is bonded to the PCB in order to improve the flatness of the array PCB, the surface flatness and precision of the substrate itself must be processed very high. Therefore, it must be finished with an abrasive cloth or abrasive stone having a very fine surface roughness. However, if the polishing work is processed only with abrasive stones or polishing cloths with very fine surface roughness, it takes a very long time and the flatness does not improve, and the waste of the polishing stones or polishing cloths becomes severe. It happens. Therefore, it is necessary to perform the polishing operation while changing from an abrasive stone or abrasive cloth having a rough surface to an abrasive cloth having a finer surface gradually.

Korean Registered Patent Publication No. 10-2142828 (2020.08.07.) discloses a linked transfer means of a substrate polishing device for PCB.

Since the linkage transfer means of the substrate polishing device for PCB can polish the substrate through a series of continuous processes by sequentially arranging a plurality of polishing devices and polishing while passing the substrate in turn, the polishing Even during the supply and recovery of the support plate to the device, the polishing process does not stop, and as a result, there is an effect of providing a polishing device that can be mass-produced in a short time, but the disadvantage of rust caused by steam and gas there is

KR 10-2142828 B1 2020.08.07.

An object of the present invention is to provide a method for manufacturing a copper foil substrate capable of preventing rust from being generated by steam and gas.

Another object of the present invention is to provide a method for manufacturing a copper foil substrate that can prevent deformation after a certain period of time.

In order to achieve the above object, the present invention provides the following means.

The present invention includes the steps of laser cutting the substrate (step 1); Round processing the laser-cut substrate (step 2); polishing the rounded substrate (step 3); and immersing the polished substrate in an anti-corrosion composition to coat it (step 4); Including, it provides a method for manufacturing a substrate for manufacturing copper foil.

In step 4, the polished substrate is degreased at 80 to 90 ° C, washed with water, acid cleaned at 40 to 60 ° C, washed with water, and then washed at room temperature. After activation, immersion in an anticorrosive composition at 70 to 90 ° C. for 5 to 45 minutes, followed by water rinse, the anticorrosive composition is 80% by weight of ethanol, 10% by weight of zinc phosphate, 1-octadecane 2% by weight of thiol, 2% by weight of citric acid, 2% by weight of silicate, 2% by weight of alkylphenol alkoxylate and 2% by weight of polyorganosiloxane.

Before the step 3, further comprising spraying a surface deviation reducing composition on the round-processed substrate, wherein the surface deviation reducing composition contains 50% by weight of paraffin wax, 10% by weight of carbon black, 10% by weight of zinc oxide, It includes 10% by weight of cerium oxide, 10% by weight of ethyl carbitol and 10% by weight of fumed silica.

Further comprising the step of immersing the coated substrate in an anti-deformation composition for 10 to 11 hours after step 4, wherein the anti-deformation composition contains 70% by weight of oxygen water and 10% of dimer modified epoxy resin. % by weight, including 10% by weight of calcium sulfoaluminate, 5% by weight of dimethylpolysiloxane, 4% by weight of polythiophene (PEDOT), and 1% by weight of natural surfactant, wherein the oxygenated water is activated by purified water, and the activation It is prepared by injecting oxygen into the treated purified water, and in the activation treatment, the purified water is passed through a tank equipped with a ceramic ball. It is prepared by adding 5 parts by weight of polyvinyl alcohol (PVA) as a binder to 100 parts by weight of the cured ceramic powder, molding it into a ceramic ball shape using a ventilator, and firing it at 1,350 ° C. for 5 hours. The mixture is silicon oxide (SiO ₂ ) 40 wt%, alumina (Al ₂ O ₃ ) 19.5 wt%, zirconia (ZrO ₂ ) 13.5 wt%, titania (TiO ₂ ) 5.5 wt%, ferric oxide (Fe ₂ O ₃ ) 4.5 wt%, manganese oxide (MnO ₂ ) 4.0% by weight, copper oxide (CuO) 3.5% by weight, lithium oxide (LiO ₂ ) 4.5% by weight, and barium carbonate (BaCO ₃ ) 5.0% by weight, the natural surfactant is 80% by weight of peach fermented liquid, It contains 10% by weight of acid medicine extract and 10% by weight of coconut extract, and the peach fermented liquid is obtained by adding 600 parts by weight of purified water to 100 parts by weight of peach and heating at 95 ° C. for 1 hour to obtain a peach extract, and 100 parts by weight of peach extract 2 parts by weight of pullulanase was added, enzymatic treatment was performed at 40 ° C for 2 hours, 2 parts by weight of aronia fermented liquid was added to 100 parts by weight of the enzyme-treated peach extract, fermented at 25 ° C for 24 hours, and then filtered. The fermented aronia broth is prepared by mixing 50% by weight of aronia, 30% by weight of fructo-oligosaccharide, 10% by weight of xylose and 10% by weight of loess longevity, and fermented at 25 ° C for 2 days. After stirring and mixing 20 parts by weight of loess for 100 parts by weight for 1 hour, it is prepared by immersing it for 10 hours. After stirring, it is obtained by reflux extraction at 80 ° C. for 4 hours using a reflux extractor, followed by filtration. The coconut extract is obtained by adding 10 parts by weight of 90% (v / v) ethanol to 1 part by weight of coconut using a circulation extractor. After extraction at 80 ° C. for 2 hours, it is obtained by filtration.

The method for manufacturing a copper foil support plate according to the present invention has the advantage of extending the service life of the copper foil support plate by preventing rust from being generated by steam and gas.

In addition, the manufacturing method of the copper foil support plate of the present invention has the advantage of extending the service life of the copper foil support plate because it can prevent deformation after a certain period of time.

1 is a photograph after using the substrate prepared in Comparative Example 1 in a press room for one month.
2 is a photograph after using the substrate manufactured in Example 1 in the press room for one month.

Hereinafter, the present invention will be described in detail.

First, the manufacturing method of the copper foil manufacturing substrate according to the present invention will be described.

The manufacturing method of the copper foil manufacturing support plate of the present invention,

laser cutting the substrate (step 1);

Round processing the laser-cut substrate (step 2);

polishing the rounded substrate (step 3); and

immersing the polished substrate in an anti-corrosion composition to coat it (step 4);

includes

In step 1, Hardox 450 may be used as the substrate.

The Hardox 450 is SSAB's wear-resistant steel with a nominal hardness of 450 HBW. The Hardox 450 has excellent bendability and weldability. The Hardox 450 can be used for a variety of parts and structures exposed to abrasion environments. The Hardox 450 has excellent dent resistance, abrasion resistance and wear life.

Conventional copper foil manufacturing uses SUS630, but in the present invention, by using Hardox 450 and anti-corrosive treatment, rust generation by steam and gas can be prevented and the service life of the copper foil manufacturing can be extended. There are advantages to being

Prior to step 3, a step of spraying a surface deviation reducing composition on the rounded substrate may be additionally included.

There is an advantage in that flatness can be improved by spraying the surface deviation reducing composition on the round-processed substrate.

The surface deviation reducing composition includes 50% by weight of paraffin wax, 10% by weight of carbon black, 10% by weight of zinc oxide, 10% by weight of cerium oxide, 10% by weight of ethyl carbitol, and 10% by weight of fumed silica.

Step 3 is a step of belt polishing the upper and lower surfaces of the rounded support plate using sandpaper.

In Step 4, the polished substrate is degreased at 80 to 90 ° C, washed with water, acid cleaned at 40 to 60 ° C, washed with water, and then washed at room temperature. It is a step of activating, immersing in the anti-corrosion composition for 5 to 45 minutes at 70 ~ 90 ℃, and then washing with water (Water Rinse).

The anti-corrosion composition contains 80% by weight of ethanol, 10% by weight of zinc phosphate, 2% by weight of 1-octadecanethiol, 2% by weight of citric acid, 2% by weight of silicate, 2% by weight of alkylphenol alkoxylate and 2% by weight of polyorganosiloxane. includes

The present invention has the advantage of prolonging the service life of the copper foil manufacturing substrate by preventing rust from being generated by steam and gas by immersing the substrate in an anticorrosive composition and treating it with a film.

The copper foil manufacturing subplate is pressurized at 1000 ton for 8 hours at 250°C in a vacuum in the press room, then cooled to room temperature, then pressed at 1000 ton at 250°C for 8 hours in a vacuum and then cooled to room temperature. The operation is repeated. Therefore, there is a problem that deformation occurs after a certain period of time has elapsed.

The present invention may further include, after step 4, immersing the coated substrate in an anti-deformation composition for 10 to 11 hours.

The present invention has the advantage of preventing the substrate from being deformed even after a certain period of time by immersing the coated substrate in the anti-deformation composition.

The anti-deformation composition contains 70% by weight of oxygen water, 10% by weight of dimer modified epoxy resin, 10% by weight of calcium sulfoaluminate, 5% by weight of dimethylpolysiloxane, 4% by weight of polythiophene (PEDOT), and a natural interface. Contains 1% by weight of the active agent.

The oxygenated water is prepared by activating purified water and injecting oxygen into the activated purified water.

The activation process passes the purified water through a tank equipped with ceramic balls.

The ceramic ball is obtained by adding 10 parts by weight of water to 100 parts by weight of the mixture, calcined at 1,300 ° C. for 10 hours, and adding 5 parts by weight of polyvinyl alcohol (PVA) as a binder to 100 parts by weight of powdered ceramic powder. After molding into a shape, it is prepared by firing at 1,350 ° C for 5 hours.

The mixture includes 40% by weight of silicon oxide (SiO ₂ ), 19.5% by weight of alumina (Al ₂ O ₃ ), 13.5% by weight of zirconia (ZrO ₂ ), 5.5% by weight of titania (TiO ₂ ), and 5.5% by weight of ferric oxide (Fe ₂ O _{3 )} . ) 4.5 wt%, manganese oxide (MnO ₂ ) 4.0 wt%, copper oxide (CuO) 3.5 wt%, lithium oxide (LiO ₂ ) 4.5 wt%, and barium carbonate (BaCO ₃ ) 5.0 wt%.

The natural surfactant includes 80% by weight of fermented peach, 10% by weight of acid medicine extract, and 10% by weight of coconut extract.

The peach fermented liquid is obtained by adding 600 parts by weight of purified water to 100 parts by weight of peaches and heating at 95 ° C. for 1 hour to obtain a peach extract, adding 2 parts by weight of pullulanase to 100 parts by weight of the peach extract and enzymatically at 40 ° C. for 2 hours After treatment, 2 parts by weight of aronia fermentation broth was added to 100 parts by weight of the enzyme-treated peach extract, fermented at 25 ° C for 24 hours, and filtered.

The fermented aronia broth is used after mixing 50% by weight of aronia, 30% by weight of fructooligosaccharide, 10% by weight of xylose, and 10% by weight of red clay longevity, and then fermented at 25 ° C. for 2 days.

The loess longevity is prepared by stirring and mixing 20 parts by weight of loess with 100 parts by weight of water for 1 hour and then immersing it for 10 hours.

The acid medicine extract is obtained by adding 20 parts by weight of 90% (v/v) ethanol to 1 part by weight of the acid medicine, stirring, reflux extraction at 80 ° C. for 4 hours using a reflux extractor, and then filtering.

The coconut extract is obtained by adding 10 parts by weight of 90% (v/v) ethanol to 1 part by weight of coconut, extracting at 80° C. for 2 hours using a circulation extractor, and then filtering.

The method for manufacturing a copper foil support plate according to the present invention has the advantage of extending the service life of the copper foil support plate by preventing rust from being generated by steam and gas.

In addition, the manufacturing method of the copper foil support plate of the present invention has the advantage of extending the service life of the copper foil support plate because it can prevent deformation after a certain period of time.

Hereinafter, the configuration and effects of the present invention will be described in more detail through examples. These examples are only for illustrating the present invention, but the scope of the present invention is not limited by these examples.

[Comparative Example 1]

SUS630 with a thickness of 1.5 mm was laser cut. The laser-cut SUS630 was subjected to round processing. The round-processed SUS630 was polished to manufacture a copper foil manufacturing support plate.

Hardox 450 with a thickness of 1.5 mm was laser cut. The laser cut Hardox 450 was processed round. The round-processed Hardox 450 was polished. The polished Hardox 450 was degreased at 90 ° C, washed with water, acid cleaned at 50 ° C, washed with water, and activated at room temperature. And, after being immersed in the anti-corrosion composition at 80 ° C. for 30 minutes, water rinse was performed to prepare a copper foil manufacturing substrate.

The anti-corrosion composition contains 80% by weight of ethanol, 10% by weight of zinc phosphate, 2% by weight of 1-octadecanethiol, 2% by weight of citric acid, 2% by weight of silicate, 2% by weight of alkylphenol alkoxylate and 2% by weight of polyorganosiloxane. It was prepared by mixing.

[Experimental Example 1]

A hot plate was placed in the press room, a carrier plate was laminated on top of it, the support plate manufactured in Comparative Example 1 and Example 1 was laminated on top of it, and 500 layers were laminated on top of the copper foil, and a hot plate was laminated on top. Comparative Example 1 A photograph of the substrate of FIG. 1 is shown, and a photograph of the substrate of Example 1 is shown in FIG. 2 .

Referring to FIG. 1, it can be seen that the substrate manufactured in Comparative Example 1 is rusted, whereas the substrate manufactured in Example 1 is not rusted by looking at FIG. 2.

[Comparative Example 2]

After mixing 27 parts by weight of isopropyl alcohol, 1.8 parts by weight of sodium chlorate, 25 parts by weight of tannic acid, 0.09 parts by weight of zinc nitrate and 0.27 parts by weight of a nonionic fluorine-based surfactant with respect to 100 parts by weight of an aqueous solution of orthophosphoric acid, stirring and A corrosion inhibitor was prepared by reacting.

[Experimental Example 2]

Corrosion resistance performance tests were conducted on the anticorrosive composition prepared in Example 1 and the anticorrosive agent prepared in Comparative Example 2.

The anti-corrosion composition prepared in Example 1 and the anti-corrosion agent prepared in Comparative Example 2 were applied to a steel plate of 150 mm x 70 mm x 3.2 T, and then naturally dried for 7 days to prepare a specimen. The specimen prepared above was carried out according to KS D 9502 (neutral, acetic acid, cas spray test), and the coating film was observed after 300 hours of testing. At this time, after observing the occurrence of rust, swelling, peeling, etc. of the coating film, the lowest value of 1 to the highest value of 10 is indicated in Table 1.

evaluation items Example 1 Comparative Example 2 Corrosion resistance performance test 10 6

According to Table 1, it can be seen that the anticorrosive composition prepared in Example 1 has excellent corrosion resistance performance compared to the anticorrosive agent prepared in Comparative Example 2.

Claims (4)

laser cutting the substrate (step 1);
Round processing the laser-cut substrate (step 2);
polishing the rounded substrate (step 3); and
immersing the polished substrate in an anti-corrosion composition to coat it (step 4);
Including,
In Step 4, the polished substrate is degreased at 80 to 90 ° C, washed with water, acid cleaned at 40 to 60 ° C, washed with water, and then washed at room temperature. Activation, immersion in the anti-corrosion composition at 70 to 90 ° C. for 5 to 45 minutes, followed by water rinse,
The anti-corrosion composition contains 80% by weight of ethanol, 10% by weight of zinc phosphate, 2% by weight of 1-octadecanethiol, 2% by weight of citric acid, 2% by weight of silicate, 2% by weight of alkylphenol alkoxylate and 2% by weight of polyorganosiloxane. including,
Method for manufacturing a copper foil support plate.
delete According to claim 1,
Prior to step 3, further comprising spraying a surface deviation reducing composition on the rounded substrate,
The surface deviation reduction composition includes 50% by weight of paraffin wax, 10% by weight of carbon black, 10% by weight of zinc oxide, 10% by weight of cerium oxide, 10% by weight of ethyl carbitol and 10% by weight of fumed silica,
Method for manufacturing a copper foil support plate.
According to claim 1,
Further comprising the step of immersing the coated substrate in an anti-deformation composition for 10 to 11 hours after step 4,
The anti-deformation composition contains 70% by weight of oxygen water, 10% by weight of dimer modified epoxy resin, 10% by weight of calcium sulfoaluminate, 5% by weight of dimethylpolysiloxane, 4% by weight of polythiophene (PEDOT), and a natural interface. Contains 1% by weight of the active agent,
The oxygenated water is prepared by activating purified water and injecting oxygen into the activated purified water,
The activation process passes the purified water through a tank equipped with ceramic balls,
The ceramic ball is obtained by adding 10 parts by weight of water to 100 parts by weight of the mixture, calcined at 1,300 ° C. for 10 hours, and adding 5 parts by weight of polyvinyl alcohol (PVA) as a binder to 100 parts by weight of powdered ceramic powder. After molding into a shape, it is prepared by firing at 1,350 ° C for 5 hours,
The mixture includes 40% by weight of silicon oxide (SiO ₂ ), 19.5% by weight of alumina (Al ₂ O ₃ ), 13.5% by weight of zirconia (ZrO ₂ ), 5.5% by weight of titania (TiO ₂ ), and 5.5% by weight of ferric oxide (Fe ₂ O _{3 )} . ) 4.5% by weight, manganese oxide (MnO ₂ ) 4.0% by weight, copper oxide (CuO) 3.5% by weight, lithium oxide (LiO ₂ ) 4.5% by weight and barium carbonate (BaCO ₃ ) 5.0% by weight,
The natural surfactant contains 80% by weight of peach fermented liquid, 10% by weight of acid medicine extract and 10% by weight of coconut extract,
The peach fermented liquid is obtained by adding 600 parts by weight of purified water to 100 parts by weight of peaches and heating at 95 ° C. for 1 hour to obtain a peach extract, adding 2 parts by weight of pullulanase to 100 parts by weight of the peach extract and enzymatically at 40 ° C. for 2 hours 2 parts by weight of aronia fermented liquid was added to 100 parts by weight of the enzyme-treated peach extract, fermented at 25 ° C for 24 hours, and then filtered.
The fermented aronia broth is fermented at 25 ° C. for 2 days after mixing 50% by weight of aronia, 30% by weight of fructooligosaccharide, 10% by weight of xylose, and 10% by weight of red clay longevity,
The loess longevity is prepared by stirring and mixing 20 parts by weight of loess with 100 parts by weight of water for 1 hour and then immersing it for 10 hours,
The acid medicine extract is obtained by adding 20 parts by weight of 90% (v / v) ethanol to 1 part by weight of the acid medicine, stirring, reflux extraction at 80 ° C. for 4 hours using a reflux extractor, and then filtering,
The coconut extract is obtained by adding 10 parts by weight of 90% (v / v) ethanol to 1 part by weight of coconut, extracting at 80 ° C. for 2 hours using a circulation extractor, and then filtering.
Method for manufacturing a copper foil support plate.

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