KR100966354B1 - Teflon mold fabrication method for pattern forming - Google Patents

Abstract

The present invention enables the production of a Teflon mold commonly applicable to non-traditional lithography methods by using an amorphous or crystalline Teflon material as a mold material. To this end, the present invention provides various types of non-traditional lithography methods. Unlike the aforementioned conventional methods using molds of different materials, various non-traditional lithography is realized by using amorphous or crystalline Teflon material as the mold material to realize the repeated use in the patterning process and the manufacture of a mold having excellent durability. It is commonly applicable to the method, and by realizing patterns having various sizes ranging from several nanometers (nm) to several centimeters (cm), productivity (mass productivity) in the patterning process can be greatly improved, and low surface energy can be obtained. Separate surface treatment in the patterning process By so it will be omitted for realizing the simplification of the manufacturing process.

Description

Teflon mold manufacturing method for pattern formation {TEFLON MOLD FABRICATION METHOD FOR PATTERN FORMING}

1A to 1C are process flowcharts illustrating a process of manufacturing a Teflon mold for pattern formation according to an embodiment of the present invention;

2a to 2c is a process flowchart showing a process of manufacturing a pattern forming Teflon mold according to another embodiment of the present invention,

Figure 3a is a real optical photograph of a Teflon mold having a thickness of 500㎛ prepared using the manufacturing method of the present invention,

3b is an actual optical photograph of a Teflon mold having a thickness of 3 mm prepared using the manufacturing method of the present invention,

4 is an electron micrograph of a Teflon embossed mold prepared using the manufacturing method of the present invention, 4a is a Teflon embossed mold having a line width and line spacing of 80 and 270 nm, and 4b is a line width and line spacing of 1.2 and 1.0. Μm teflon embossed mold, 4c is a teflon embossed mold with dots and heights of 420 and 700 nm, FIG. 4d is a teflon embossed mold with dots and heights of 700 and 700 nm,

5 is an electron micrograph of a Teflon intaglio mold prepared using the manufacturing method of the present invention, where 5a is a Teflon intaglio mold having line widths and line spacings of 270 and 80 nm, and 5b is 1.0 and 1.2 in line width and line spacing. Μm teflon intaglio mold, 5c is a teflon intaglio mold with dots and heights of 420 and 700 nm, FIG. 5d is a teflon intaglio mold with dots and heights of 700 and 700 nm,

Figure 6 is an electron micrograph of the result of applying the Teflon mold prepared according to the present invention by applying a non-traditional lithography method, 6a is an electron microscope of the result of applying the Teflon mold prepared according to the present invention by imprinting lithography method Photograph, Figure 6b is an electron micrograph of the result of the patterning by applying the Teflon mold prepared according to the present invention in the ultraviolet curing technique, Figure 6c is a result of applying the Teflon mold prepared according to the present invention to the capillary lithography method 6D is an electron micrograph of the result of patterning the Teflon mold prepared according to the present invention by applying a soft molding method.

<Description of the symbols for the main parts of the drawings>

102, 202: Master 104: Teflon film

106,206: Teflon sheet 108, 204: Teflon solution

110, 208: support plate 112, 210: pressure plate

114, 212: Teflon mold

The present invention relates to a method for manufacturing a mold used to form a fine pattern on a substrate or the like, and more particularly, a fine line having a line width of several nm to several tens of nm (100 nm or less) using an amorphous or crystalline Teflon material. The present invention relates to a mold manufacturing method suitable for producing a mold for forming a pattern having a size or a size of several micrometers to several centimeters.

As is well known, exposure technology, a lithography process used in semiconductor processes and the like, is based on projection printing technique, and is reduced in size (pattern) by using a short wavelength light source and a large number of optical lenses. It is a technique of indirectly transferring a fine shape of a wafer onto a wafer.

In recent years, shorter wavelength light sources and corresponding optical devices have been used to obtain a resolution that is close to 100 nm or less in the distance between circuit line widths and correspondingly. Line width and density are realized. However, in this case, the development of production equipment is not only very difficult, but also has a problem that the manufacturing cost of the equipment rises exponentially, this problem is a situation that is a big obstacle to the commercialization.

On the other hand, alternative techniques for solving the problems of the exposure technique (optical lithography) as described above, such as electron beam lithography (e-beam lithography), X-ray lithography (X-ray lithography), scanning probe lithography (scanning probe lithography) The method was developed. However, these alternative technologies not only require expensive equipment, but also require a relatively long process time, thereby significantly reducing economic efficiency.

Thus, as a means of meeting economics, non-traditional lithography methods have been developed with simple processes without the use of expensive equipment.

That is, techniques of non-traditional methods distinguished from conventional optical lithography methods include nano-imprint lithography, soft lithography, capillary force lithography, and the like.

Nano imprint lithography, which is one of the conventional non-traditional methods, uses rigid molds such as silicon, quartz, and stainless steel, and requires relatively high pressure conditions in the process, thereby easily causing mold damage. There is a problem in that a significant cost is generated due to the technical difficulties in manufacturing the mold of the nanostructure. In addition, since this method uses a rigid mold, there is a disadvantage in that a separate surface treatment must be performed on the mold for smooth separation between the mold and the polymer material after patterning.

On the other hand, the conventional non-traditional methods, soft lithography and capillary lithography, use a soft mold, which has a fundamental limitation that it is difficult to make a nano structured mold due to the mechanical properties of the mold material. Since it is impossible to use repeatedly, there is a problem that it is not suitable for mass production for commercialization.

In addition, in the conventional non-traditional method, using a teflon material as a mold material, by pouring a teflon solution into a master pattern and drying it, the former method using a thin film mold and a teflon powder are placed in a master made by etching a silicon wafer. There is the latter method of molding by applying a high pressure at a high temperature.

However, the former method of using the Teflon material has a fundamental problem that the film is too thin to be torn or broken, difficult to handle and difficult to use repeatedly, the latter method is not only easy to break the master However, there is a problem in that it is not easy to separate the mold from the master after molding, and in the case of a master made of organic materials such as photoresist, it cannot be used due to process conditions requiring high temperature, and any type of embossed or engraved Since only the mold is manufactured, the reverse phase pattern has a problem of having to rebuild the master and a cost loss.

Furthermore, one of the most important factors in common in non-traditional methods is the mold material. As described above, none of the mold materials developed to date can be applied to all non-traditional lithography. In addition, the mold materials that have been used in the respective methods had various problems in actual production processes due to the limitations in the material properties.

The present invention is to solve the above problems of the prior art, by using an amorphous or crystalline Teflon material as a mold material, to provide a mold manufacturing method capable of manufacturing a Teflon mold commonly applicable to non-traditional lithography methods. Its purpose is to.

Another object of the present invention is to provide a mold manufacturing method that can produce a Teflon mold having an adaptive pattern size from several nanometers to several centimeters regardless of the embossed and intaglio pattern by using amorphous or crystalline Teflon material as the mold material. To provide.

The present invention according to one embodiment for achieving the above object is a method of manufacturing a teflon mold having an embossed pattern or an intaglio pattern, by performing Teflon film casting on a master having an intaglio or embossed pattern face, the intaglio portion of the pattern face Forming a Teflon film in a form of completely filling the film, providing a predetermined amount of Teflon solution on the Teflon film, and closely contacting a Teflon sheet having a predetermined thickness on the Teflon film provided with the Teflon solution. And pressing the teflon sheet under a predetermined pressure condition to bond the teflon film and the teflon sheet to complete the structure of the teflon mold, and separating the structure from the master to complete the teflon mold. It provides a Teflon mold manufacturing method for pattern formation comprising.

According to another aspect of the present invention, there is provided a method of manufacturing a teflon mold having an embossed pattern or an intaglio pattern, comprising: preparing a master having an intaglio or embossed pattern surface; Forming a predetermined amount of Teflon solution, contacting a Teflon sheet having a predetermined thickness on the Teflon solution, and pre-pressing the Teflon sheet such that a portion of the Teflon solution completely fills the intaglio portion of the patterned surface. It provides a method for producing a pattern for Teflon mold comprising the step of completing the structure of the Teflon mold by pressing under conditions and temperature conditions, and completing the Teflon mold by separating the structure from the master.

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the technical gist of the present invention, unlike the aforementioned conventional method using a mold of different material for various kinds of non-traditional lithography, is repeated in the patterning process using an amorphous or crystalline Teflon material as a mold material. By realizing the production of molds with high durability and use, they can be commonly applied to various non-traditional lithography methods, and in the patterning process through the realization of patterns having various sizes ranging from several nanometers (nm) to several centimeters (cm). By greatly improving the productivity (mass productivity) of the, it is easy to achieve the object of the present invention through this technical means.

Herein, amorphous or crystalline Teflon materials include, for example, PDD (2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole), TFE (tetrafluoroethylene), poly (tetrafluoroethylene), and polyfluorocarbons. (vinylidene fluoride) may be used, or a copolymer of at least two or more materials may be used, and a copolymer of PDD and TFE is a material developed by DuPont of the United States of America and named as AF2400 and AF1600.

As is well known, the Teflon mold of the present invention using amorphous or crystalline Teflon material as a material has a relatively high mechanical strength (Young's modulus, 1.5 GPa), so that not only can it be used repeatedly using nano-engraved lithography, but also gas permeability. It is excellent in that it can be applied to both soft lithography and capillary lithography based on PDMS (polydimethylsiloxane) mold.

In addition, since the Teflon mold has excellent light transmittance in the visible region, it can be applied to patterning using an ultraviolet curable material, and since it has a low surface energy (15.6 dyne / cm), it does not require a separate surface treatment. Compared to the mold material has the advantage that can simplify the manufacturing process. In addition, the Teflon material has a variety of advantages over conventional mold materials such as thermal stability (glass transition temperature 240 ℃), solvent resistance, it can be said to be a very suitable material as a mold material for patterning.

Example 1

1A to 1C are flowcharts illustrating a process of manufacturing a Teflon mold for pattern formation according to an embodiment of the present invention.

Referring to FIG. 1A, a Teflon film casting process is performed to form a Teflon film 104 on a pattern surface of the master 102. First, a pattern of several nano to several hundred nanoscales (eg, an intaglio pattern) 102a is formed on the upper surface thereof. Teflon film 104 on the patterned surface of the master 102 by preparing a master 102 formed on the surface of the master 102, and poured a Teflon solution of a degree enough to embed the engraved portion on the patterned surface of the master 102 ). At this time, the Teflon solution is about 0.5 to 2wt% of the mixing ratio with respect to the solvent. Here, the Teflon film 104 formed on the pattern surface of the master 102 is dried for about 20 to 30 hours (preferably 24 hours) in a refrigerator having a refrigeration temperature of 5 to 10 ° C. The evaporation of the solvent mixed in the Teflon solution for a long time is because when the solvent evaporates too quickly, pores may be formed on the surface thereof.

Here, the master 102 may emboss or engrav a pattern of several nanoscales to several hundred nanometers using, for example, an optical lithography method using a photoresist, or an embossed or intaglio pattern using an electron beam or X-ray lithography method. The master made in this way can be used directly, or the master of the reverse phase can be duplicated using an ultraviolet curable mold material (e.g., model name MINS 301, 311, MINUTA, etc.), or the reverse phase of the reverse phase (original statue) Can be duplicated and used as a master.

Next, a teflon sheet 106 in a flat form is prepared, which is filled with a teflon powder in a jig having a desired thickness (eg, 100 μm to 1 cm), and a high temperature (eg, 300 to 340 ° C.). It can be made to the desired thickness by pressurizing (eg 1000-3000 psi) for several to several tens of minutes (eg 5 to 30 minutes) at temperature conditions. That is, the thickness of the Teflon sheet 106 can be freely considered in consideration of the size of the Teflon mold to be manufactured, thereby flexibly adjusting the mechanical strength of the Teflon mold.

Here, the Teflon used in the Teflon film 104 and the Teflon sheet 106 is an amorphous or crystalline Teflon material, for example, PDD (2,2-bistrifluoromethyl-4,5-difluoro-1, fluorine-based Teflon materials). 3-dioxole, TFE (tetrafluoroethylene), poly (tetrafluoroethylene), poly (vinylidene fluoride) and the like.

Subsequently, the master 102 is placed on the support plate 110 of the press equipment (not shown), and a predetermined amount of Teflon solution 108 is dropped or sprayed onto the Teflon film 104 formed on the pattern surface. Then, after placing the Teflon sheet 106 aligned on the Teflon film 104, as shown in FIG. 1B as an example, the pressure plate 112 at a predetermined temperature condition (for example 50 to 150 ℃) The Teflon sheet 106 is contacted and pressurized to a predetermined pressure (eg, 1 to 5 bar). Here, dropping or spraying a predetermined amount of the Teflon solution 108 onto the Teflon film 104 may cause the Teflon solution 108 to slowly melt the upper front surface of the Teflon film 104 in a pressurized process. This is to increase the adhesion between the 104 and the Teflon sheet 106. That is, the Teflon film 104 and the Teflon sheet 106 are completely adhered through the high temperature pressing process, thereby completing the structure of the Teflon mold.

Finally, by separating (removing) the Teflon mold structure from the master 102, a Teflon mold 114 made of amorphous or crystalline Teflon material is completed, as shown in FIG. 1C as an example.

Therefore, the Teflon mold prepared according to the present embodiment has excellent mechanical strength, excellent gas permeability and light transmittance, and has a low surface energy (15.6 dyne / cm) that does not require a separate surface treatment. Teflon molds can be made of amorphous or crystalline Teflon materials, and these characteristics allow the use of various forms of non-traditional lithography methods (e.g., nano-engraved lithography methods, soft lithography methods, capillary lithography methods, and patterning using UV curable materials). Law, etc.).

In addition, since the Teflon mold of the present embodiment does not require a separate surface treatment due to the properties of the material (low surface energy), the patterning process can be simplified, and the pattern material (organic or inorganic) of the master is not limited at all. Even repeated use for the patterning process can achieve effective mass production without damage or deformation of the mold.

On the other hand, the manufacturing method according to the present embodiment, in particular the mold manufacturing method of the present embodiment using a Teflon film casting process is preferably applied to the production of a Teflon mold having a pattern size of several nano to several hundred nanometers.

On the other hand, in the present embodiment, a process for manufacturing a teflon mold having an embossed pattern as an example has been described as an example, but the present invention is not necessarily limited to this, the pattern structure (embossed pattern structure) is another master Through the same process using a Teflon mold having an intaglio pattern can be manufactured, of course.

[Example 2]

2A to 2C are flowcharts illustrating a process of manufacturing a Teflon mold for pattern formation according to another exemplary embodiment of the present invention.

Referring to FIG. 2A, a master 202 having a pattern (eg, an intaglio pattern) 202a having a size of several micros (μm) to several centimeters (cm) is prepared, and is engraved on a pattern surface of the master 102. The Teflon solution 204 is formed to such an extent that the part is sufficiently buried. At this time, the Teflon solution 204 (a low viscosity liquid solvent (eg, FC-77, etc.), which is mostly a solvent) may be formed on the pattern surface of the master 202 through spin coating or the like. In addition, the master 202 can be made in almost the same to similar manner as already described in Embodiment 1 described above.

Subsequently, a flat form of the Teflon sheet 206 is prepared, which can be manufactured by almost the same or similar method as already described in Example 1 described above.

In addition, the Teflon used in the Teflon sheet 206 is an amorphous or crystalline Teflon material, such as PDD (2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole), TFE (tetrafluoroethylene), which are fluorine-based Teflon materials. ), Poly (tetrafluoroethylene), poly (vinylidene fluoride) and the like.

Next, the master 202 is placed on the support plate 208 of the press equipment (not shown), and the Teflon sheet 206 is aligned and placed on the Teflon solution 204 formed on the pattern surface. As shown in FIG. 2B, the pressure plate 210 is contacted with the Teflon sheet 206 at a predetermined temperature condition (for example, 50 to 150 ° C.) to press a predetermined pressure (for example, 1 to 5 bar). Through the pressurization process, a part of the Teflon solution 204 fills the intaglio portion formed on the pattern surface of the master 202, and the Teflon solution 204 and the Teflon sheet 206 are completely adhered to form a structure of the Teflon mold. Is completed.

Finally, by separating (removing) the Teflon mold structure from the master 202, a Teflon mold 212 made of amorphous or crystalline Teflon material is completed, as shown in FIG. 2C as an example.

Therefore, the Teflon mold manufactured according to the present embodiment may be different from the Teflon mold manufactured by the method of Example 1 described above, although it may be somewhat different from the method of Example 1 described above in terms of the manufacturing process. Substantially identical results and effects can be obtained.

On the other hand, the inventors of the present invention carried out a number of experiments to prepare an amorphous or crystalline Teflon mold using the method according to the invention, and also experimented to form a pattern using a Teflon mold prepared according to the present invention, The experimental results are as shown in FIGS. 3 to 6.

That is, FIG. 3A is an actual optical photograph of a Teflon mold having a thickness of 500 μm manufactured using the manufacturing method of the present invention, and FIG. 3B is a actual photo of a Teflon mold having a 3 mm thickness manufactured using the manufacturing method of the present invention. By optical photography, the inventors of the present invention can clearly see that the production method according to the present invention can actually produce a Teflon mold having a pattern size of 500 μm and a Teflon mold having a pattern size of 3 mm. .

4 is an electron micrograph of a Teflon embossed mold prepared using the manufacturing method of the present invention, 4a is a Teflon embossed mold having a line width and line spacing of 80 and 270 nm, and 4b is a line width and line spacing of 1.2 and 1.0 μm Teflon embossed mold, 4c is a Teflon embossed mold with dots and heights of 420 and 700 nm, and FIG. 4D is a teflon embossed mold with dots and heights of 700 and 700 nm.

Therefore, the inventors of the present invention can actually manufacture an embossed mold having a pattern size of tens to hundreds of nanometers, an embossed mold having a pattern size of several microns, and a dot embossed mold having a size and height of several hundred nanometers. I could see clearly.

5 is an electron micrograph of a Teflon intaglio mold prepared using the manufacturing method of the present invention, where 5a is a Teflon intaglio mold having a line width and line spacing of 270 and 80 nm, and 5b is a line width and line spacing of 1.0 and A 1.2 μm Teflon engraved mold, 5c is a Teflon engraved mold with dots and heights of 420 and 700 nm, and FIG. 5D is a Teflon engraved mold with dots and heights of 700 and 700 nm.

Therefore, the inventors of the present invention can actually manufacture a negative mold having a pattern size of tens to hundreds of nanometers, an intaglio mold having a pattern size of several microns, and a dot negative mold having a size and height of several hundred nanometers. I could see clearly.

Figure 6 is an electron micrograph of the result of applying the Teflon mold prepared according to the present invention by applying a non-traditional lithography method, 6a is an electron microscope of the result of applying the Teflon mold prepared according to the present invention by imprinting lithography method 6B is an electron micrograph of the result of patterning the Teflon mold prepared according to the present invention by applying the UV curing technique, and FIG. 6C shows the patterning by applying the Teflon mold prepared according to the present invention to the capillary lithography method. An electron micrograph of one result, Figure 6d is an electron micrograph of the result of applying the Teflon mold prepared according to the present invention by the soft molding method.

Accordingly, the inventors of the present invention can effectively form a pattern having a desired size and shape by applying the teflon mold prepared according to the present invention through the present experiment by imprinting lithography method, ultraviolet curing method, capillary force lithography method, soft molding method and the like. I can see clearly.

In the above description, the present invention has been presented and described with reference to preferred embodiments. However, the present invention is not necessarily limited thereto, and a person having ordinary skill in the art to which the present invention pertains can make various modifications without departing from the technical spirit of the present invention. It will be readily appreciated that branch substitutions, modifications and variations are possible.

As described above, according to the present invention, unlike the aforementioned conventional method using a mold of different materials for various kinds of non-traditional lithography, iterative in the patterning process using an amorphous or crystalline Teflon material as the mold material. By realizing the production of molds with high durability and use, they can be commonly applied to various non-traditional lithography methods, and in the patterning process through the realization of patterns having various sizes ranging from several nanometers (nm) to several centimeters (cm). It is possible to greatly increase the productivity (mass productivity) of the, and to simplify the manufacturing process by making it possible to omit a separate surface treatment in the patterning process through the production of a Teflon mold having a low surface energy.

Claims (18)

A method of manufacturing a teflon mold having an embossed pattern or an intaglio pattern, Forming a teflon film in a form in which the intaglio portion of the pattern surface is completely embedded by performing teflon film casting on the master having an intaglio or embossed pattern surface; Providing a predetermined amount of Teflon solution on the Teflon film, Closely contacting a Teflon sheet having a predetermined thickness on the Teflon film provided with the Teflon solution, Pressing the teflon sheet under a predetermined pressure condition to bond the teflon film and the teflon sheet to complete a structure of the teflon mold; Separating the structure from the master to complete the teflon mold Teflon mold manufacturing method for pattern formation comprising a. The method of claim 1, The teflon mold is a pattern having a teflon mold manufacturing method, characterized in that the mold having an embossed or intaglio pattern of several nano to several hundred nano units. The method of claim 1, The teflon is a fluorine-based teflon material, characterized in that the pattern forming teflon mold manufacturing method. The method of claim 3, wherein The fluorine teflon material may be any one or two or more of PDD (2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole), TFE (tetrafluoroethylene), poly (tetrafluoroethylene), poly (vinylidene fluoride) A method of producing a teflon mold for pattern formation, characterized in that the copolymer. The method of claim 1, The Teflon solution is a pattern forming Teflon mold manufacturing method, characterized in that formed on the Teflon film through a spray method. 6. The method according to any one of claims 1 to 5, The Teflon film forming process, Applying a teflon solution to the master; Forming the Teflon film by evaporating the solvent mixed in the Teflon solution Teflon mold manufacturing method for pattern formation comprising a. 6. The method according to any one of claims 1 to 5, The mixing ratio of the Teflon solution to the solvent, the method of manufacturing a Teflon mold for pattern formation, characterized in that 0.5 to 2wt%. 6. The method according to any one of claims 1 to 5, The teflon sheet, Method of manufacturing a Teflon mold for pattern formation, characterized in that it is prepared by the process of filling the teflon powder in a jig of a specific thickness, and pressing the filled Teflon powder under a predetermined pressure condition. The method of claim 8, The pressurization of the Teflon powder is a method for producing a pattern Teflon mold, characterized in that carried out for several to several tens of minutes under pressure conditions of thousands of psi. 6. The method according to any one of claims 1 to 5, Pressurization of the Teflon sheet, the Teflon mold manufacturing method for pattern formation, characterized in that carried out under pressure conditions of several bar and temperature conditions of several tens to hundreds. A method of manufacturing a teflon mold having an embossed pattern or an intaglio pattern, Preparing a master having an intaglio or embossed pattern surface; Forming a predetermined amount of Teflon solution on the pattern surface of the master, Contacting a teflon sheet having a predetermined thickness on the teflon solution; Pressurizing the teflon sheet under a predetermined pressure condition and a temperature condition so that a part of the teflon solution completely fills the intaglio portion of the patterned surface, thereby completing the structure of the teflon mold; Separating the structure from the master to complete the teflon mold Teflon mold manufacturing method for pattern formation comprising a. The method of claim 11, The teflon mold is a pattern having a teflon mold manufacturing method, characterized in that the mold having an embossed or intaglio pattern of several micro to several centimeters. The method of claim 11, The teflon is a fluorine-based teflon material, characterized in that the pattern forming teflon mold manufacturing method. The method of claim 13, The fluoro-based teflon material is any one or two of PDD (2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole), TFE (tetrafluoroethylene), poly (tetrafluoroethylene), poly (vinylidene fluoride) The above-mentioned copolymer is a Teflon mold manufacturing method for pattern formation characterized by the above-mentioned. The method according to any one of claims 11 to 14, The Teflon film forming process, Applying a teflon solution to the master; Forming the Teflon film by evaporating the solvent mixed in the Teflon solution Teflon mold manufacturing method for pattern formation comprising a. The method according to any one of claims 11 to 14, The teflon sheet, Method of manufacturing a Teflon mold for pattern formation, characterized in that it is prepared by the process of filling the teflon powder in a jig of a specific thickness, and pressing the filled Teflon powder under a predetermined pressure condition. The method of claim 16, The pressurization of the Teflon powder is a method for producing a pattern Teflon mold, characterized in that carried out for several to several tens of minutes under pressure conditions of thousands of psi. The method according to any one of claims 11 to 14, Pressurization of the Teflon sheet, the Teflon mold manufacturing method for pattern formation, characterized in that carried out under pressure conditions of several bar and temperature conditions of several tens to hundreds.

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