JP5011065B2 - Method for producing screen printing body - Google Patents

Description

  The present invention relates to a method for manufacturing a screen printing body capable of manufacturing a screen printing body excellent in printing accuracy.

  Screen printing that uses a screen printing plate making (hereinafter also simply referred to as “screen plate making” or “plate making”) to form a printed film made of ink, paste, or the like on the surface of the substrate is a fine pattern formation. In addition, since it has excellent mass productivity, it is used in a wide range of industrial fields. In general, screen printing uses a screen mask formed by stretching a mesh whose opening is closed by a resin (for example, a photosensitive emulsion film) or the like, and ink is applied on the upper surface of the screen mask. In this method, printing is performed by extruding the ink material to the lower surface side (base material side) of the screen mask through a predetermined opening formed in the screen mask by placing the material and sliding the squeegee.

  In this screen printing, since the screen mask is flexible and the printing pressure is low, printing on a wide range of printing materials such as paper, cloth, plastic, glass, metal, and ceramics is possible. Further, since the pattern formed by the ink material can be thickened, it is also applied to the manufacture of electronic parts such as thick film ICs (hybrid ICs), printed wiring boards, resistors and capacitors. Incidentally, a screen mask is usually manufactured by patterning a photosensitive emulsion film coated on a mesh by a photolithography technique. Alternatively, it is also manufactured by selectively etching a metal film by a photolithography technique to form a mesh pattern.

  A general screen plate making used for screen printing is a film-shaped screen having a support member composed of a ridge and the like, and a mask material in which openings of a predetermined opening shape are disposed on the support member. The screen is provided with a plate making frame stretched on the inside thereof. In printing, first, the screen-making screen is disposed on the surface (printing surface) of an appropriate printing medium, and ink or paste is placed on the screen. Next, if a squeegee or the like is slid on the screen and paste is extruded from the opening, the opening shape of the opening and a plurality of openings are formed on the printing surface of the printing medium. A print pattern corresponding to the array pattern can be formed.

  For example, in the field of electronic component manufacturing, the above-described screen printing is adopted from the viewpoint of accuracy and mass productivity. In this field, with the recent technical trend of miniaturization of component size, there is an increasing demand for forming a finer print pattern with higher accuracy.

  However, since the platemaking frame has some distortion, it is difficult to make the screen stretched on the platemaking frame completely flat. Furthermore, since the distortion of the plate-making frame varies depending on the plate-making frame, the arrangement pattern of the openings on the screen stretched on the plate-making frame is slightly different for each screen plate-making. Therefore, when screen printing is performed using a plurality of screen plate making with different opening arrangement patterns, there may be a problem that the printing pattern for each screen printing body to be obtained is slightly different.

  In recent years, since the substrate to be printed tends to be enlarged, the screen (screen plate making) used for printing on the enlarged substrate tends to be enlarged as well. Therefore, the difference in the printing pattern for every screen printing body obtained by the enlargement of a board | substrate or screen platemaking became more remarkable.

  If the degree of difference in the opening pattern for each screen making is within a certain tolerance range that is allowed according to the printed material obtained by printing, no particular problem occurs. However, it is necessary to further improve printing accuracy in response to recent technological advances. In particular, when a laminated electronic component is manufactured by laminating screen printing bodies, a fine deviation of the printing position for each screen printing body causes a more remarkable deviation by laminating them. For this reason, in order to manufacture a higher performance laminated electronic component, it is important that the amount of deviation of the printing position of the screen printing body is within a certain allowable tolerance range.

  As related prior arts, screen printing plate making (see Patent Document 1) in which the intersecting portions of the wires (紗) constituting the screen support member are engaged, and screen printing plate making that defines the linear thermal expansion coefficient of the plate making frame (See Patent Document 2), a method of screen printing with a predetermined side of a plate making frame curved into a convex shape (see Patent Document 3), and a screen printing plate making provided with a plate making frame that can be deformed in both the inside and outside directions. And a method for producing a printed body using the same (see Patent Document 4). However, even these screen printing plate making and printing methods using these are sufficient to meet demands such as ensuring high printing accuracy or keeping the printing position deviation within an allowable range. There is a need for further improvement.

JP-A-9-136394 JP-A-11-34288 JP 2000-318120 A JP 2006-62241 A

  The present invention has been made in view of such problems of the prior art, and the object of the present invention is excellent in accuracy even for a large-scale printing body having a large-area printing surface. An object of the present invention is to provide a method for producing a screen printing body that can perform screen printing and can produce a screen printing body having excellent printing accuracy.

  As a result of intensive studies to achieve the above-mentioned problems, the present inventors have determined that, based on the correlation between the clearance between the printing medium and the screen and the amount of printing position deviation of the printed pattern to be formed, It has been found that the above-mentioned problems can be achieved by selecting and setting the optimum clearance, and the present invention has been completed.

  That is, according to the present invention, the following method for producing a screen print is provided.

[1] A screen having a mask material with openings formed in parallel with a predetermined clearance maintained above a flat plate-shaped substrate, and a plate-making frame on which the screen is stretched A method for producing a screen printing body, wherein a screen printing body having a predetermined printing pattern formed on the printing body is obtained by sliding in a predetermined direction with a squeegee on the screen of the screen making plate comprising: The ratio (L _P ) of the length (L _P ) of the printing pattern on the side perpendicular to the sliding direction axis of the squeegee to the inner dimension (L _F ) of the side perpendicular to the sliding direction axis of the squeegee / _{L F)} is not less than 0.45, and the clearance in the range of 0.1 to 2 mm, from the correlation between the printing position misalignment amount of the print pattern, the printing misalignment relative to the clearance A calibration curve representing the relationship, the calibration curve to obtain the predetermined clearance printing position misalignment amount of the print pattern is zero, optimum clearance of the predetermined clearance, and the printing material and the screen A method for producing a screen printing body selected and set as

[2] The above-mentioned [1], wherein the optimum clearance is selected and set according to the following procedures (1) to (5), which is the same design specifications as the screen plate making but using a separate screen plate making . A method for producing a screen print.
(1) Using the screen plate-making, the clearance is set to two or more values within a range of 0.1 to 2 mm, and trial printing is performed to obtain a first trial printing body.
(2) with measuring the print position shift amount of the first trial printing material, to obtain the calibration curve to the printing position shift amount plot were measured with respect to the clearance set.
(3) Trial printing is performed by setting the clearance to a value of one or more points within a range of 0.1 to 2 mm using the separate screen plate making to obtain a second trial printing body.
(4) The printing position deviation amount of the second trial printing body is measured, the printing position deviation amount measured with respect to the set clearance is plotted, and then the calibration curve is offset and plotted Get a virtual calibration curve through
(5) From the virtual calibration curve, select and set the optimum clearance at which the print position deviation amount of the print pattern becomes zero .

[3] The method for producing a screen print according to [1], wherein the optimum clearance is selected and set according to the following procedures (6) to (8).
(6) Trial printing is performed by setting the clearance to any two or more values within a range of 0.1 to 2 mm to obtain a third trial print.
(7) as well as measuring the print position shift amount of the third trial printing material, to obtain the calibration curve to the printing position shift amount plot were measured with respect to the clearance set.
(8) Select and set the optimum clearance from which the print position deviation amount of the print pattern becomes zero from the calibration curve.

  [4] The method for producing a screen print according to any one of [1] to [3], wherein the clearance is 0.3 to 1.5 mm.

  [5] The method for producing a screen printing body according to any one of [1] to [4], wherein the printing body is a fired ceramic substrate or a ceramic green sheet.

  [6] The method for manufacturing a screen printing body according to [5], wherein the substrate to be printed is the ceramic green sheet, and the screen printing body is a component of a laminated substrate obtained by laminating a plurality of the printing bodies. .

  According to the method for producing a screen printing body of the present invention, it is possible to perform screen printing with excellent accuracy even on a large-scale printing body having a large surface to be printed, and a screen printing body with excellent printing accuracy. Can be manufactured. In addition, according to the method for manufacturing a screen printing body of the present invention, it is possible to manufacture a screen printing body in which the shift amount of the printing position is suppressed within a certain range. For this reason, if the screen printing body obtained by the method for producing a screen printing body according to the present invention is used, the total amount of misalignment of printing positions (lamination misalignment) is allowed even when a plurality of these are laminated. Since it can be kept small within the range, a higher performance multilayer electronic component can be provided.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described below, but the present invention is not limited to the following embodiment, and is based on the ordinary knowledge of those skilled in the art without departing from the gist of the present invention. It should be understood that modifications and improvements as appropriate to the following embodiments also fall within the scope of the present invention.

  FIG. 1 is a side view showing an example of screen plate making used in the method for producing a screen printing body of the present invention, and FIG. 3 is a perspective view showing a state in which the screen plate making is placed on a plate making frame holder. As shown in FIGS. 1 and 3, in one embodiment of the method for producing a screen printing body of the present invention, first, the screen platemaking 5 is placed on the platemaking frame holder 11. The screen platemaking 5 includes a film-like screen 3 and a platemaking frame 4 on which the screen 3 is stretched. Reference numeral 6 in FIG. 1 denotes an air cylinder that fixes the screen plate making onto the plate making frame holder 11.

  FIG. 2 is a top view showing an example of screen plate making used in the method for producing a screen printing body of the present invention. As shown in FIG. 2, the screen 3 constituting the screen plate making 5 has a mask material 2 in which one or more openings 1 having a predetermined opening shape are formed. Note that the screen 3 is usually provided with a film-like support member (screen mesh) constituted by a bag or the like, and a mask material is disposed on at least one film surface of the screen mesh. The material constituting the screen mesh is not particularly limited, but it is preferable to use a high-strength and high-rigidity material. Specifically, the screen mesh made by Murakami Co., Ltd. ER wire and ERH wire (both are trade names) Examples of suitable materials can be given as examples.

  Specific examples of the material constituting the mask material include resin and metal. The screen 3 is formed with openings having a shape and a number corresponding to a desired print pattern. For convenience, FIG. 2 shows a state in which nine openings 1 having a rectangular opening shape are formed. Further, the screen plate making 5 is configured by stretching the screen 3 on the plate making frame 4, and the plate making frame 4 is generally formed of a flexible material.

As shown in FIG. 4, the inner dimension (inner dimension of the plate-making frame 4) of the side perpendicular to the sliding direction axis of the squeegee of the plate making frame 4 is “L _F ”, and the sliding direction axis of the squeegee of the printing pattern 30 is perpendicular to the printing pattern 30. When the length of the side to be printed (the length of one side of the printing pattern 30) is “L _P ”, the value of L _P / L _F needs to be 0.45 or more, preferably 0.5 More preferably, it is 0.52 or more, particularly preferably 0.55 or more. By setting the value of L _P / L _F to 0.45 or more, it is possible to produce a screen printed body excellent in printing accuracy. In general screen printing, often the value of L P _/ L _F is carried out in 0.3 before and after. However, the clearance between the printing material and the screen, when used as a parameter for enhancing the printing accuracy, the value of L P _/ L _F is less than 0.45, remarkable effect does not appear. Therefore, in the manufacturing method of the screen printing of the present invention, by making the value of L P _/ L _F 0.45 or higher, it is effectively utilized as a parameter for the printing accuracy of the clearance.

  As shown in FIG. 1, on the inner side (or lower side) of the frame-shaped plate-making frame holder 11, the flat plate-shaped printing medium 10 is placed on the printing stage 12 so as to be parallel to the frame surface of the plate-making frame holder 11. It is placed. Specific examples of the printing medium 10 include those used in conventional screen printing. Suitable printed materials include fired ceramic substrates, ceramic green sheets, resin substrates, glass substrates, metal substrates, and the like.

  In the method for manufacturing a screen printing body according to the present embodiment, the screen printing plate 5 is placed on the plate making frame holder 11 so that the printing body 10 (the printing surface) and the screen 3 are parallel to each other. At this time, the screen plate making 5 is placed so that a predetermined clearance CL is maintained between the printing medium 10 and the screen 3. The clearance CL to be held needs to be in the range of 0.1 to 2 mm, preferably in the range of 0.3 to 1.5 mm, more preferably in the range of 0.4 to 1.5 mm, especially Preferably it shall be in the range of 0.5-1.3 mm. By setting the clearance CL within the range of 0.1 to 2 mm, there is an advantage that the printing accuracy is hardly lowered even when repeated printing is performed. If the clearance CL is less than 0.1 mm, a defect such as bleeding may occur in the formed print pattern. On the other hand, if the clearance CL exceeds 2 mm, the amount of elongation of the screen 3 caused by sliding of the squeegee becomes too large, and it is difficult to repeat high-precision printing.

  Conventionally, in order to improve the positional accuracy of a printing pattern formed by screen printing, efforts have been made mainly for ingenuity and improvement of screen plate making, such as employing lithography using a glass mask and increasing the rigidity of a mesh. On the other hand, adjustment of the clearance between the printing medium and the screen has been considered as a factor for controlling the shape of the printed pattern to be formed.

On the other hand, in the present invention, a calibration curve is created from the correlation between the clearance within a predetermined numerical range and the printing position deviation amount of the printed pattern to be formed (deviation amount viewed from a desired design value). Using the calibration curve, the optimum clearance that minimizes the printing position deviation amount is selected, and the printing medium and the screen are arranged while the selected optimum clearance is maintained, and screen printing is performed. That is, the method for producing a screen printing body of the present invention has not been conventionally focused as a means for improving the positional accuracy of the printing pattern, and the printing position deviation of the printing pattern is adjusted by adjusting the clearance between the printing body and the screen. This is a method that makes it possible to produce a screen printing body with reduced amount and excellent printing accuracy. Hereinafter, further details of the method for producing a screen print of the present invention will be described, focusing on the method for selecting and setting the optimum clearance.

  In the present invention, specific examples of the method for selecting and setting the optimum clearance include the following methods (1) to (5) (first selection and setting method), and (6) to (8). A method (second selection and setting method) by the procedure of (1) can be mentioned.

(First selection and setting method)
(1) Trial printing is performed by setting a clearance to any two or more values within a range of 0.1 to 2 mm to obtain a first trial printing body (procedure (1)). Next, (2) the printing position deviation amount of the first trial printing body is measured, and the measured printing position deviation amount is plotted against the set clearance to obtain a calibration curve (procedure (2)).

  FIG. 5 is a graph plotting the measurement result of the printing position shift amount of the first trial printing body. 6 is an enlarged view of a portion A in FIG. 5, and FIG. 7 is an enlarged view of a portion C in FIG. FIG. 4 is a schematic diagram for explaining the measurement points of the positional accuracy of the print pattern. 5 to 7, the clearance is set in increments of 0.1 mm within a range of 0.3 to 1.5 mm, and trial printing is performed with each clearance. The number of clearance points set in step (1) may be two or more, but in order to obtain a higher correlation with the printing position deviation amount, it is preferable to set a clearance of three points or more. It is more preferable to set a clearance of 5 points. However, setting a clearance of 8 points or more is not preferable because the procedure becomes complicated.

  In the procedure (2), as shown in FIGS. 8 and 9, a calibration curve is created by plotting the measured printing position displacement amount (mm) for each set clearance (mm). The calibration curve may be created by the nth order least square method based on the plotted points. FIG. 8 shows a calibration curve (1) when approximated by a cubic function. On the other hand, FIG. 9 shows a calibration curve (2) when approximated by a linear function.

  Next, (3) Trial printing is performed by setting a clearance to a value of one or more points within a range of 0.1 to 2 mm to obtain a second trial printed body (Procedure (3)). In the procedure (3), normally, a screen plate making having the same design specifications as the screen plate making used in the procedure (2) but different (separate) is used. In general, screen plate making based on the same design specification generally has different printing position deviation amounts even if the clearance is the same because of individual differences. However, since the design specifications are the same, it can be assumed that the correlation between the clearance and the printing position deviation amount is close to each other even if the design is separate.

  The clearance score set in step (3) may be one or more. However, setting a clearance of 3 or more points is not preferable because the procedure becomes complicated.

  Thereafter, (4) the printing position deviation amount of the second trial printing body is measured, the measured printing position deviation amount is plotted against the set clearance, and then the calibration curve is offset and the plotted point is passed. A virtual calibration curve is obtained (procedure (4)). In step (4), as shown in FIG. 8, the measured printing position deviation amount (mm) is plotted against the set clearance (mm). Note that FIG. 8 shows a case where the clearance is set to 0.7 mm and two second trial printing bodies are produced using two screen plate-making processes.

  Next, the calibration curve (1) created in step (2) is offset in the Y-axis direction, and the virtual calibration passing through the plotted points (“filled circle (●)” and “filled triangle” in FIG. 8). Create lines (1) and (2). The calibration curve may be offset in the X-axis (clearance) direction and / or the Y-axis (print position deviation amount) direction. In FIG. 9, the calibration curve (2) expressed by a linear function is offset in the Y-axis direction and passes through the plotted points (“filled circle (●)” and “filled triangle” in FIG. 9). The example which produced virtual calibration curve (3) and (4) is shown.

  Next, (5) from the virtual calibration curve, an optimum clearance that minimizes the printing position shift amount of the printing pattern is selected and set (procedure (5)). In step (5), as shown in FIG. 8, the intersection of the printing position deviation amount = 0 (mm) and the virtual calibration curve (1), and the printing position deviation amount = 0 (mm) and the virtual calibration curve (2 ) To read the optimum clearance (about 0.5 mm and about 0.9 mm) for each screen plate making. Thereafter, the clearance between the printing medium and the screen may be set to the read optimum clearance value, and screen printing may be performed in that state.

(Second selection and setting method)
(6) Trial printing is performed with the clearance set to any two or more values within the range of 0.1 to 2 mm to obtain a third trial print (procedure (6)). Next, (7) a printing position deviation amount of the third trial printing body is measured, and a calibration curve is obtained by plotting the measured printing position deviation amount with respect to the set clearance (procedure (7)). The number of clearance points set in step (6) may be two or more, but in order to obtain a higher correlation with the printing position deviation amount, it is preferable to set three or more clearances. It is more preferable to set a clearance of 5 points. However, setting a clearance of 8 points or more is not preferable because the procedure becomes complicated.

  In step (7), as shown in FIG. 13, a calibration curve is created by plotting the measured printing position deviation (mm) for each set clearance (mm). In FIG. 13, the clearances are set to 0.5 mm and 1.0 mm, test printing is performed using three types of screen plate making at each clearance, and calibration curves (3), (4), and ( The result of creating 5) is shown. The calibration curve may be created by the nth order least square method based on the plotted points. FIG. 13 shows calibration curves (3), (4), and (5) when approximated by a linear function.

  Next, (8) from the calibration curve, the optimum clearance that minimizes the printing position deviation of the printing pattern is selected and set (procedure (8)). In step (8), as shown in FIG. 13, the intersection of the printing position deviation amount = 0 (mm) and the virtual calibration curve (3), the printing position deviation amount = 0 (mm), and the calibration curve (4) And the intersection between the printing position deviation amount = 0 (mm) and the virtual calibration curve (5), the optimum clearance for each screen plate making (about 0.58 mm, about 0.81 mm, and about 0.82 mm) Read. Thereafter, the screen plate making with each calibration curve is used, the clearance between the printing medium and the screen is set to the optimum clearance value, and screen printing is performed in that state.

  As described above, when the optimum clearance is selected and set by the first selection and setting method, the screen plate making used to create the calibration curve and the screen plate making for actual printing have the same design. This is particularly effective when the specifications (lots) are separate. On the other hand, when selecting and setting the optimum clearance by the second selection and setting method, it is assumed that the screen plate making used to create the calibration curve and the screen plate making actual printing are the same individual. It is said.

  Specifically, screen printing can be performed as follows. That is, a predetermined ink or paste is placed on the screen 3 (see FIG. 1). Next, when a squeegee or the like is slid on the screen 3 and paste or the like is pushed out from the opening, the opening shape of the opening and a plurality of openings are formed on the surface to be printed 10. Can obtain a screen printing body on which a printing pattern corresponding to the arrangement pattern is formed. Note that printing patterns can be stacked by repeatedly performing printing on the same printing surface.

  In the method for producing a screen printed body according to the present invention, in order to perform printing by selecting the optimum clearance, using the clearance between the printed body and the screen as a parameter, which is extremely highly correlated with the printing position shift amount of the print pattern, Printing with extremely high accuracy can be performed. Therefore, it is possible to easily manufacture a screen printing body on which a predetermined printing pattern with high accuracy is formed. In addition, since general screen plate making and screen printing machines can be used without any special modification, the versatility is high and the printing cost can be reduced.

When screen printing is performed on an LTCC substrate (printed body) having an area of a printing surface of 200 mm × 200 mm (□ 200 mm, 40000 mm ² ), from the viewpoint of suppressing stacking deviation of the LTCC substrate, Usually, a positional accuracy of about 5 μm is required. The method for producing a screen-printed body of the present invention is when the size (inner dimensions) of the plate-making frame (screen) is 300 mm × 300 mm (□ 300 mm, 90000 mm ² ) to 400 mm × 400 mm (□ 400 mm, 160000 mm ² ). It is particularly effective. The size of the print pattern is particularly effective when the size is 150 mm × 150 mm (□ 150 mm, 22500 cm ² ) or more, and more preferably 180 mm × 180 mm (□ 180 mm, 32400 mm ² ) or more.

  The screen printed body obtained by the method for producing a screen printed body of the present invention is composed of at least a dielectric or a conductor, taking advantage of the characteristic that a printed body on which a high-precision printing pattern is formed can be easily produced. And a circuit having a pattern having a passive element or an active element. In addition, a capacitor element etc. can be mentioned as a passive element, and an electromechanical conversion element etc. can be mentioned as an active element.

Moreover, when a to-be-printed body is a ceramic green sheet, it is preferable that a screen printing body is a component of the laminated substrate obtained by laminating | stacking the plurality. Specific examples of the multilayer substrate include an LTCC substrate, a ceramic capacitor, a multilayer piezoelectric actuator, a NO _x / oxygen sensor, and the like. That is, according to the method for producing a screen printing body of the present invention, it is possible to manufacture a printing body on which a high-precision printing pattern is formed. A few LTCC substrates and the like can be easily produced. Further, if the LTCC substrate manufactured in this way is baked or the like, a high-performance circuit substrate in which circuits are arranged with high precision can be manufactured.

  EXAMPLES Hereinafter, although this invention is demonstrated concretely based on an Example, this invention is not limited to these Examples.

Example 1
As shown in FIG. 4, a screen plate making 5 having an inner dimension of 330 mm × 330 mm (Murakami Co., Ltd., formed printing pattern size: 200 mm × 200 mm) is used, and the clearance is within a range of 0.3 to 1.5 mm. Setting was made in increments of 0.1 mm, and trial printing was performed with each clearance to produce 13 first trial prints. The printing position shift amount (shift amount from the design center) of the produced first trial print was measured. The graph which plotted the measurement result is shown in FIGS. The measured printing position deviation amount (mm) was plotted against each set clearance (mm), and a calibration curve shown in FIG. 8 was created. In FIG. 8, a calibration curve (1) in the case of approximation by a cubic function (y = −0.0352x ³ + 0.086x ² −0.049x + 0.0044) is shown.

  Use the same design specifications (lots) as the previous screen plate making, but use a separate screen plate making a trial print with the clearance set to 0.7 mm to produce a second trial print. did. The printing position shift amount of the produced second trial print was measured. The graph which plotted the measurement result is shown in FIGS. 10 to 12, the plotted points are indicated by “filled circles (●)”. The measured printing position deviation amount (mm) is plotted against the set clearance (0.7 mm), and the calibration curve created earlier is offset in the Y-axis (printing position deviation amount) direction and passes through the plotted points. A virtual calibration curve was created. The created virtual calibration curve (1) is shown in FIG. The optimum clearance (about 0.5 mm) for the screen plate used to produce the second trial print is read from the intersection of the printing position deviation = 0 (mm) and the virtual calibration curve (1) Screen printing was performed by setting the clearance between the printed body and the screen to 0.5 mm, and a screen printed body was manufactured. The graph which plotted the result of having measured the printing position shift amount of the manufactured screen printing body is shown to FIGS.

(Example 2)
A screen printing body was produced by the same procedure as in Example 1 except that screen lots of different lots were used. The graph which plotted the result of having measured the printing position shift amount of the manufactured screen printing body is shown to FIGS. In addition, in FIGS. 10-12, the point which plotted the measurement result of the printing position shift amount of the 2nd trial printing body is shown by the "filled triangle".

(Example 3)
As shown in FIG. 4, using a screen plate making 5 having an inner dimension of 330 mm × 330 mm (Murakami Co., Ltd., size of printed pattern to be formed: 200 mm × 200 mm), the clearance is set to 0.5 mm and 1.0 mm, Trial printing was performed with the respective clearances, two third trial printing bodies were produced, and the amount of printing position deviation was measured. The measured printing position shift amount (mm) was plotted against each set clearance (mm), and a calibration curve (3) shown in FIG. 13 was created.

  Read the optimum clearance (about 0.58 mm) for the screen plate used to make the third trial print from the intersection of the printing position deviation = 0 (mm) and the calibration curve (3). The screen printing plate used was used as it was, and screen printing was performed by setting the clearance between the printing medium and the screen to about 0.58 mm. FIG. 13 shows a graph in which the results of measuring the printing position deviation of the manufactured screen printing body are plotted.

(Examples 4 and 5)
A screen printing body was produced by the same procedure as in Example 3 except that screen platemaking of a different lot was used. FIG. 13 shows a graph plotting the calibration curves (4) and (5) created when manufacturing each screen print and the measurement result of the printing position deviation of the manufactured screen print.

  As shown in FIGS. 10 to 13, according to the method for manufacturing the screen printing body of Examples 1 to 5, by selecting and setting the optimum clearance, the amount of deviation from the design center is small, and printing with high positional accuracy is performed. It is clear that a screen printing body on which a pattern is formed can be manufactured.

  The method for producing a screen-printed body of the present invention is suitable as a method for producing various electronic components because it can form a fine pattern and has high versatility and is suitable for mass production. In addition, according to the method for manufacturing a screen printing body of the present invention, it is possible to set the positional deviation amount of the screen printing body within an allowable tolerance range. Therefore, the method for producing a screen printed body of the present invention is particularly effective when a laminated electronic component is produced by laminating a plurality of screen printed bodies.

It is a side view which shows an example of the printing machine used with the manufacturing method of the screen printing body of this invention. It is a top view which shows an example of the screen platemaking used with the manufacturing method of the screen printing body of this invention. It is a perspective view which shows the state which mounts screen platemaking in a platemaking frame holder. It is a schematic diagram explaining the measurement point of printing position shift amount. It is the graph which plotted the measurement result of the printing position shift amount of the 1st trial printing body. It is the A section enlarged view of FIG. It is the C section enlarged view of FIG. It is a graph which shows an example which plotted the calibration curve and the virtual calibration curve. It is a graph which shows the other example which plotted the calibration curve and the virtual calibration curve. It is the graph which plotted the measurement result of the printing position shift amount of a screen printing body. It is the A section enlarged view of FIG. It is the C section enlarged view of FIG. It is a graph which shows an example which plotted the calibration curve.

Explanation of symbols

1: opening, 2: mask material, 3: screen, 4: plate making frame, 5: screen plate making, 6: air cylinder, 10: printing medium, 11: plate making frame holder, 12: printing stage, 30: printing pattern , A to H: measurement points, CL: clearance, L _F : inner dimension of the plate making frame, L _P : length of one side of the printing pattern

Claims (6)

A screen having a mask material in which an opening is formed, which is disposed in parallel with a predetermined clearance maintained above a flat plate-shaped printing medium, and a plate-making frame on which the screen is stretched. A method for producing a screen printing body that obtains a screen printing body in which a predetermined printing pattern is formed on the substrate, by sliding the screen plate making screen on a screen with a squeegee in a predetermined direction,
The ratio of the length (L _P ) of the side of the printing pattern perpendicular to the sliding direction axis of the squeegee to the inner dimension (L _F ) of the side perpendicular to the sliding direction axis of the squeegee _P / L _F ) is 0.45 or more,
From the correlation between the clearance in the range of 0.1 to 2 mm and the printing position deviation amount of the printing pattern, a calibration curve representing the relationship of the printing position deviation amount to the clearance is created, from the calibration curve, A method for manufacturing a screen printing body , wherein a predetermined clearance at which a printing position shift amount of the printing pattern is zero is obtained, and the predetermined clearance is selected and set as an optimum clearance between the printing body and the screen. 2. The screen printing body according to claim 1, wherein the optimum clearance is selected and set according to the following procedures (1) to (5), although the design specifications are the same as those of the screen platemaking but a separate screen platemaking is used. Production method.
(1) Using the screen plate-making, the clearance is set to two or more values within a range of 0.1 to 2 mm, and trial printing is performed to obtain a first trial printing body.
(2) with measuring the print position shift amount of the first trial printing material, to obtain the calibration curve by plotting the printing position shift amount measured against the clearance set.
(3) Trial printing is performed by setting the clearance to a value of one or more points within a range of 0.1 to 2 mm using the separate screen plate making to obtain a second trial printing body.
(4) The printing position deviation amount of the second trial printing body is measured, the printing position deviation amount measured with respect to the set clearance is plotted, and then the calibration curve is offset and plotted Get a virtual calibration curve through
(5) From the virtual calibration curve, select and set the optimum clearance at which the print position deviation amount of the print pattern becomes zero . The method for producing a screen print according to claim 1, wherein the optimum clearance is selected and set according to the following procedures (6) to (8).
(6) Trial printing is performed by setting the clearance to any two or more values within a range of 0.1 to 2 mm to obtain a third trial print.
(7) as well as measuring the print position shift amount of the third trial printing material, to obtain the calibration curve by plotting the printing position shift amount measured against the clearance set.
(8) Select and set the optimum clearance from which the print position deviation amount of the print pattern becomes zero from the calibration curve.   The said clearance is 0.3-1.5 mm, The manufacturing method of the screen printing body as described in any one of Claims 1-3.   The method for producing a screen printing body according to claim 1, wherein the printing body is a fired ceramic substrate or a ceramic green sheet. The substrate to be printed is the ceramic green sheet;
The method for producing a screen printing body according to claim 5, wherein the screen printing body is a component of a laminated substrate obtained by laminating a plurality of the screen printing bodies.

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