A kind of preparation method of screen plate
A screen plate and gauze technology, applied in the field of screen plate preparation, can solve the problems of high preparation cost and low screen plate yield, and achieve the effects of low preparation cost, simplified preparation process and long service life.
Active Publication Date: 2018-10-09
NEW FOUNDER HLDG DEV LLC +1
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Problems solved by technology
[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of low yield and high preparation cost of the screen prepared by the screen preparation method in the prior art, thereby providing a screen with high yield and low preparation cost Preparation
Method used
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Embodiment 1
[0032] The present embodiment provides a kind of preparation method of screen plate, comprises the following steps:
[0033] Tightly fix the gauze 1 on one side of the screen frame 2 so that the surface of the gauze 1 faces upward;
[0034] Apply the sealing slurry on the surface of the gauze 1 to fill the grid on the gauze 1;
[0035] Apply photosensitive glue on gauze 1 to form photosensitive glue layer 3;
[0036] The surface of the dried photosensitive adhesive layer 3 is exposed to the light-emitting surface of a laser exposure machine with a pattern formed by light, so that the photosensitive adhesive in the photosensitive adhesive layer 3 irradiated by light reacts and solidifies on the surface of the photosensitive adhesive layer 3. On the gauze 1, a prefabricated pattern is formed;
[0037] After exposure, the photosensitive adhesive that did not participate in the reaction on the gauze 1 and the sealing paste in the area that was not irradiated by light were washed...
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Abstract
The invention discloses a manufacturing method of screens. The manufacturing method comprises the steps as follows: a gauze is fixed on a screen frame; blocking pulp filled into meshes in the gauze coats the gauze; a photo-sensitive resist layer coats the gauze; the dried photo-sensitive resist layer is directly subjected to exposure treatment by a light outlet surface with a photoproduced pattern, of a laser exposure machine; a prefabricated pattern is formed on the photo-sensitive resist layer; and the prefabricated pattern on the photo-sensitive resist layer is displayed with a developing solution. The light outlet surface of the exposure machine directly irradiates the pattern on the photo-sensitive resist layer to form a preset pattern, so that the pattern does not need to be exposed and transferred to a photo-sensitive resist by a negative film in the prior art; the pattern does not expand or shrink due to presence or absence of illumination after being photoproduced; and the preset patterns of the screens produced in different batches are consistent. Therefore, the yield of the manufactured screens is improved; and the manufacturing cost of the screens is relatively low.
Description
technical field [0001] The invention relates to the technical field of screen plate manufacturing, in particular to a method for preparing a screen plate. Background technique [0002] With the continuous upgrading of printed circuit board products, the development of circuit boards has experienced the upgrading process of ordinary printed multilayer circuit boards to high-density interconnected circuit boards, and then to any layer of interconnected circuit boards, thus promoting the development of circuit board printing technology. rapid development. The existing circuit board preparation process often uses screens, and the quality of the screens will directly affect the quality of the prepared circuit boards to a certain extent. [0003] The preparation process of the existing screen includes the following steps: fixing the gauze on the screen frame, cleaning the gauze and spraying the sealing slurry on the grid of the gauze, and then coating a certain thickness of photo...
Claims
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IPC IPC(8): G03F7/20G03F7/00
Inventor 车世民陈子形
Owner NEW FOUNDER HLDG DEV LLC