Cathode baffle and manufacturing method thereof, mask plate electroforming device
A technology of cathode baffle plate and manufacturing method, which is applied in electroforming, electrolysis process, etc., can solve problems such as inability to quantify concretely
Inactive Publication Date: 2016-01-27
KUN SHAN POWER STENCIL
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Problems solved by technology
However, these methods can only adjust the edge effect of the entire panel opening, and cannot specifically quantify the edge effect value of individual openings
Method used
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[0032] A method for making a cathode baffle in the process of making an electroforming mask. The specific process steps are as follows: stretching, glue coating, exposure, development, and drying.
[0033] The stretching net includes: use 2-7mm thick cast iron as the stretching net base material, the tension of the stretching net is 40-50N / cm, the mesh number of the wire mesh is 90-200 mesh, after stretching the net, fix the screen on the frame with glue superior.
[0034] After cleaning the stretched screen frame, apply a layer of wet photosensitive glue on the screen, and control the coating range of the photosensitive glue to be slightly larger than the pattern area of the opening to be formed by electroforming.
[0035] According to the original graphic data of the required electroforming mask, expose a similar graphic area on the screen photoresist with a ratio of 2 to 4 times the opening area of the original graphic; control the exposure energy within the range of 10...
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Abstract
The invention relates to a cathode baffle plate and a production method thereof, and a mask plate electroforming device. The production method comprises the following steps of: step one: net stretching; step two: emulsion applying; step three: exposure; and step four: development .The mask plate electroforming device comprises the cathode baffle plate, an anode, a cathode, a clamp and an electrolytic tank; wherein the clamp clamps the cathode baffle plate and the cathode in the electrolytic tank; the anode is placed on an inner wall of the electrolytic tank; and the cathode baffle plate is placed between the anode and the cathode. According to the cathode baffle plate and the production method thereof, and the mask plate electroforming device provided by the invention, by controlling the applying area of the photosensitive emulsion on the baffle plate to reduce the fringe effect of local openings of a coating, the opening fringe effect is significantly reduced, the coating quality is improved, and the uniformity of the opening fringe effect is improved, thereby preventing phenomena of stannizing or nonuniform solder paste thickness during printing process; the production cost is low; the efficiency is high; and wide market prospects are provided.
Description
technical field [0001] The invention relates to a cathode baffle plate and a manufacturing method thereof, and a mask plate electroforming device, belonging to the field of mask plate manufacturing. Background technique [0002] The edge effect of the electroformed board is one of the important indicators to measure the quality of the metal mask, and is a key factor affecting the quality of the subsequent processing of the printed circuit board. A metal mask with good opening edge effect is more conducive to the realization of high-quality printed circuit boards, and is conducive to the production of high-precision circuit boards. [0003] The so-called edge effect means that the electric field lines of an ideal flat panel capacitor are straight, but in reality, the electric field lines near the edge will become curved, and the closer to the edge, the more curved it is. figure 1 3 of them. During the electroplating process, the bending at the edge of the cathode and anode ...
Claims
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IPC IPC(8): C25D1/10
Inventor 魏志凌高小平赵录军王峰
Owner KUN SHAN POWER STENCIL