Three-dimensional mask plate with graphic openings and for printing

Abstract

The invention discloses a three-dimensional mask plate with graphic openings and for printing. The three-dimensional mask plate with the graphic openings and for printing comprises a substrate, a printing face and a PCB (Printed circuit board) face, wherein the printing face and the PCB face are located on two sides of the substrate; the mask plate is provided with multiple graphic openings and a three-dimensional structure; the three-dimensional structure comprises a raised area on the printing face and a hollow area on the PCB face; the graphic openings meeting printing requirements are formed in the three-dimensional structure; the mask plate is provided with a three-dimensional raised and hollow part of which the raised height is 0.1-10mm and the hollow depth is 0.1-10mm; an external included angle between the raised and hollow part and the plate face is 80-90 degrees; and the components of the mask plate are 56% to 62% of iron and 38% to 44% of nickel. The precision of the mask plate is very high; the evenness is high and the plate face is good in quality, shining and free of coarse points, scratches and pin holes; the openings are good in quality and the hole walls are smooth and bur-free; and the mask plate is low in production cost, simple in technology and low in energy consumption.

Description

technical field [0001] The invention relates to a three-dimensional mask, in particular to a three-dimensional mask for printing with graphic openings. Background technique [0002] Surface Mount Technology (SMT for short) was born in the 1960s. [0003] SMT is to use certain tools to accurately place non-lead surface mount components on PCB pads that have been printed with solder paste or glued, and then undergo wave or reflow soldering to establish a good relationship between components and circuit boards. mechanical and electrical connections. [0004] The development of the PCB industry is not limited to flat templates. The existing PCB is developing rapidly. Some positions with specific requirements require concave parts, such as embedded bumps and printed boards, to meet the soldering of larger components on the PCB, and Does not affect the overall printing effect, it is required to reduce the transfer along with the convex part of the metal mask. Therefore, the met...

AI Technical Summary

Problems solved by technology

However, the opening precision of the steel mold made by the traditional technology through laser cutting technology cannot meet the requirements, and the quality of the board surface is not high enough.

However, the electroformed nickel mask is easy to form pinholes and rough spots on the surface of the plate, and the solution is unstable, high cost, and high energy consumption.

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