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Silk-screen printing device

A technology of screen printing device and printed substrate, which is applied in the direction of screen printing machine, printing machine, printing machine, etc., can solve the problems that cannot be expected, and achieve the effect of improving yield rate, stabilizing and reducing unqualified

Inactive Publication Date: 2007-10-03
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the contact printing method (with a screen pitch of zero) using a metal mask used in bump electrode formation, since printing is performed with a zero pitch, release due to screen tension does not occur after the squeegee passes , so the effect of improving the release characteristics by using vacuum suction, magnetic force, etc. to attract the mask from the squeegee side cannot be expected

Method used

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Embodiment Construction

[0025] The structure of the screen printing apparatus of this invention is demonstrated using FIG.1, FIG.2. Figure 1(a) shows the structure and system structure diagram seen from the front of the screen printing device. And the control system of (a) is shown in FIG. 1(b). The structure of the screen printing apparatus viewed from the side is shown in FIG. 2( a ). And in FIG. 2( b ), the screen printing device is viewed from the side and the printing state is shown.

[0026] A frame support is provided on the main body frame, and a mask 20 in which a screen having a printed pattern as an opening portion is developed is provided on the frame support. A squeegee head 2 is disposed above the mask 20 , and a squeegee 3 is attached to the squeegee head 2 . The squeegee head 2 is movable in the horizontal direction by a squeegee moving mechanism 6 composed of a ball screw and a motor, and the squeegee 3 is movable in an up and down direction by a squeegee elevating mechanism 4 . ...

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Abstract

Provided is a screen printing apparatus. In the forming of the protrude electrode using the screen printing method, resulting the adhesive force of the solder paste which is transferred by many opening-part groups and the metal mask, the departing of the printing board starts from the perimeter part, finally the middle part of the metal mask departs from the printing board, the occurring of this phenomenon is the main reason for the defective printing which concludes the thickness error of the printing film ,the printing deficiency and so on. Using the different thickness of the mentioned mask component sheet, or the different material, or the different elastic coefficient, connect every mask component sheet which is set on the accessory pattern of the printing baseboard or at all the patterns formed in the scheduled area, and the adjusting equipment which accords to the mentioned connection status and can reproduce random curve is also provided.

Description

technical field [0001] The present invention relates to a screen printing device, and more particularly to a screen printing device using a printing metal mask whose elastic state can be changed in multiple stages according to the position of the mask. Background technique [0002] Patent Document 3 discloses a printing method of a conventional screen printing device, and Patent Document 1 or Patent Document 2 discloses a mask to be used. In particular, as a mask used in printing, a thin plate material made of stainless steel is used, a method of processing a pattern opening part by an etching method or a laser method, or a wiring pattern is formed on a conductive metal surface with a resist film, using A metal mask including a pattern opening portion is formed by an additive method of electroplating, and such a metal mask is used. In addition, Patent Document 1 discloses that, on a conductive substrate on which a photosensitive resin layer is laminated, by directly irradia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F15/08B41F15/34H05K3/34H05K3/12
Inventor 向井范昭和田正文本间真
Owner HITACHI LTD
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