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Squeegee for printing device, printing device, and printing method

A printing device and printing method technology, applied in printing, printing machines, printed circuits, etc., can solve the problems of increased manufacturing cost, difficult manufacturing, and difficulty in obtaining scraping properties, etc.

Inactive Publication Date: 2009-07-08
YAMAHA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is particularly difficult to make the squeegee accurately abut and adhere to the surface of the mask in the half-etched portion having the concave portion.
Therefore, if the tip of the squeegee is formed thinner to increase the bending elasticity as in the conventional squeegee disclosed in Patent Document 1, the adhesion of the squeegee to the stencil cannot be sufficiently ensured. Difficulty getting good scrapeability
[0006] Moreover, although the scraper of the above-mentioned Patent Document 1 has a relatively thin thickness, its tip must be further processed to be extremely thin, so it must be manufactured using high-precision microfabrication technology, so it is difficult to manufacture and the manufacturing cost increases. The problem

Method used

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  • Squeegee for printing device, printing device, and printing method
  • Squeegee for printing device, printing device, and printing method
  • Squeegee for printing device, printing device, and printing method

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0049] Next, an experimental example related to the technical significance of numerical limitation of the squeegee of the present invention will be described.

[0050] The scraper material (351.5mm in length, 40mm in height, and 0.22mm in thickness) is made of stainless steel (SUS420) with Ni / P plating at a thickness of 10 μm, and only the lower edge (tip portion) of the scraper material is cut by machining. ) side (back side) to prepare a squeegee sample having a thin body-shaped tip. At this time, squeegee samples in which the thickness Ta of the thin tip portion was varied by 10 μm in the range of 40 to 140 μm were prepared. In addition, the length La of the thin body-shaped tip portion of each squeegee sample was constant and set to 1.5 mm.

[0051] Also, in the same printing apparatus as in the above-described embodiment, a half-etched mask was attached, and then each of the above-mentioned squeegee samples was sequentially attached, and the printing process was sequenti...

experiment example 2

[0056] Using the same squeegee material as above and performing the same processing, squeegee samples in which the length La of the thin body-shaped tip portion was varied by 0.1 mm within the length range of 0.1 to 3.3 mm were prepared. In addition, the thickness Ta of the thin body-shaped tip portion of each squeegee sample was constant and set to 50 μm.

[0057] Next, in the same manner as above, each squeegee sample was used for printing processing, and the thickness (μm) of paste solder residue in the CSP portion was measured for each squeegee sample, as Figure 6 As shown in the figure, the relationship between the length (mm) of the thin body-shaped tip of the squeegee and the thickness (μm) of the solder residue is shown in the figure.

[0058] From Figure 6 It can be seen from the figure that when using a squeegee whose length La of the thin tip part is 0.5 mm or more, the thickness of the solder residue cannot be confirmed substantially, and the tip part of the squ...

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Abstract

To provide a squeegee for a printing device, which has an excellent scraping property and can be easily manufactured at a low cost. In this squeegee for a printing device, a paste on a stencil (7) is spread and applied onto a substrate (W) by sliding the tip end (22a) of the squeegee along the surface of the stencil (7) disposed on the substrate (W). The squeegee is made of an expanded steel material. Only one side surface of the tip end (22a) is machined, and thereby, the thickness of the squeegee at the tip end can be reduced. The thickness (Ta) of the squeegee at the thinned tip end (22a) is set to 40 - 120 [mu]m, and the length (La) thereof is set to 0.5 mm or longer.

Description

technical field [0001] The present invention relates to a squeegee of a printing device that spreads paste on a stencil to print the paste on a substrate, a printing device, and a printing method. Background technique [0002] Conventionally, there is known a screen printing apparatus in which a stencil (mask) for screen printing is superimposed on a substrate set at a printing position, and paste solder, etc. The paste spreads while being scraped off, whereby the paste is printed (applied) onto predetermined positions on the substrate through the openings (pattern holes) formed in the stencil. [0003] Among the above-mentioned printing devices, the printing device disclosed in Patent Document 1, for example, increases the number of squeegee blades by forming the tip portion of the squeegee for scraping the paste solder into a thinner shape than the base end portion. The bending elastic coefficient at the tip improves the adhesion of the tip of the scraper to the stencil. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F15/44B41F15/08H05K3/34
CPCH05K2203/0139H05K3/1233B41F15/44
Inventor 楠木寿幸佐藤贵士须泽英树
Owner YAMAHA MOTOR CO LTD