Traditional screen printing is mainly to print some visible products, such as T-shirts, retail stall billboards and so on. However, there are many “invisible†applications for screen printing. These applications are unique in screen printing. In the industrial market, people are accustomed to "printing" as "coating", that is, a special medium is applied to the product, the main role is to produce a seal or link; to improve or protect the surface of the object; conductive. The screen printing process is widely used in the electronics industry. Although most screen printing in the electronics industry is invisible, it has a very important influence on our daily life.
Membrane switch
As we all know, the switch plays a role in transmitting instructional information in the electronic machine product. There are many types of switches, and their development is constantly updated with the advancement of electronic machine products. In the 1950s, the toggle switch of the struggling component was used to toggle the switch, and the changeover switch dominated; in the 1960s, a combination switch represented by a key switch was introduced to accomplish a simple function conversion; as the application field expanded and The function of the whole machine increased. In the 1970s, there was a switch of conductive rubber. The switch was a new type of electronic device that was developed in the late 1970s and early 1980s. It was a miniaturization and digitization of products conforming to the electronics industry. Intelligent, multi-functional development needs products.
The membrane switch is a switch made by printing a contact circuit with a conductive paste on a flexible polycarbonate or a polyester film, and is a type of contact switch. The contact of the switch is vertical and the amount of wear is very small; the screen printed contacts can form a sufficient thickness, and a layer of conductive carbon is added on the silver paste contacts to achieve high wear resistance and self-lubricating. Purpose, so the life of the membrane switch is more than tens of times faster than the mechanical contact switch.
Electronic tags
At present, about 1% of the 40 billion bar codes printed every day in the world are printed using electronic tags, which is a huge market for the printing industry. According to incomplete statistics, the market scale of global RFID tags reached 4 billion U.S. dollars in 2004, and exceeded 7 billion U.S. dollars in 2006. Experts estimate that it will reach 300 billion U.S. dollars by 2010. The increase in the market share of electronic tags has greatly reduced the production cost of electronic tags. In particular, the method of printing conductive inks and advanced printing and packaging technologies have reduced the cost of RFID smart tags.
In the electronic label printing process, screen printing is still the most suitable method for printing electronic tag antennas because of its high efficiency, flexible production, and high reliability. Screen printing can improve the stability and precision of imprinting. , It is better for printing conductive silver paste, can distinguish 0.1mm circuit line interval, positioning accuracy is very high.
Laptop motherboard
The manufacturing process of a notebook computer mainly includes three major processes such as manufacture (installation) of notebook motherboards, assembly (installation of motherboards, hard disks, etc.), and testing and inspection of complete machines. The main board manufacturing process is closely related to our screen printing.
Notebook motherboard manufacturing includes screen printing, patching, reflow, full inspection and other major sub-processes. Among them, AOI equipment is used to inspect mainboard quality after each procedure or two processes, and the adverse conditions are solved in time to form a A closed-loop system monitors the quality of the notebook motherboard. In general, there are components on both sides of the notebook motherboard. Therefore, the actual manufacturing process requires more than two processes.
The first step in manufacturing is screen printing. It means that the solder paste is printed on the pad of the PCB to prepare the components for mounting. After the solder paste is printed on, the components can be soldered. After screen printing, it will be tested to ensure the yield. After silk screen printing, it enters the SMT patch process. Its main role is on the PCB board, through the placement machine, affixed paste resistors, capacitors, IC (integrated chip) and connectors and other components.
Membrane switch
As we all know, the switch plays a role in transmitting instructional information in the electronic machine product. There are many types of switches, and their development is constantly updated with the advancement of electronic machine products. In the 1950s, the toggle switch of the struggling component was used to toggle the switch, and the changeover switch dominated; in the 1960s, a combination switch represented by a key switch was introduced to accomplish a simple function conversion; as the application field expanded and The function of the whole machine increased. In the 1970s, there was a switch of conductive rubber. The switch was a new type of electronic device that was developed in the late 1970s and early 1980s. It was a miniaturization and digitization of products conforming to the electronics industry. Intelligent, multi-functional development needs products.
The membrane switch is a switch made by printing a contact circuit with a conductive paste on a flexible polycarbonate or a polyester film, and is a type of contact switch. The contact of the switch is vertical and the amount of wear is very small; the screen printed contacts can form a sufficient thickness, and a layer of conductive carbon is added on the silver paste contacts to achieve high wear resistance and self-lubricating. Purpose, so the life of the membrane switch is more than tens of times faster than the mechanical contact switch.
Electronic tags
At present, about 1% of the 40 billion bar codes printed every day in the world are printed using electronic tags, which is a huge market for the printing industry. According to incomplete statistics, the market scale of global RFID tags reached 4 billion U.S. dollars in 2004, and exceeded 7 billion U.S. dollars in 2006. Experts estimate that it will reach 300 billion U.S. dollars by 2010. The increase in the market share of electronic tags has greatly reduced the production cost of electronic tags. In particular, the method of printing conductive inks and advanced printing and packaging technologies have reduced the cost of RFID smart tags.
In the electronic label printing process, screen printing is still the most suitable method for printing electronic tag antennas because of its high efficiency, flexible production, and high reliability. Screen printing can improve the stability and precision of imprinting. , It is better for printing conductive silver paste, can distinguish 0.1mm circuit line interval, positioning accuracy is very high.
Laptop motherboard
The manufacturing process of a notebook computer mainly includes three major processes such as manufacture (installation) of notebook motherboards, assembly (installation of motherboards, hard disks, etc.), and testing and inspection of complete machines. The main board manufacturing process is closely related to our screen printing.
Notebook motherboard manufacturing includes screen printing, patching, reflow, full inspection and other major sub-processes. Among them, AOI equipment is used to inspect mainboard quality after each procedure or two processes, and the adverse conditions are solved in time to form a A closed-loop system monitors the quality of the notebook motherboard. In general, there are components on both sides of the notebook motherboard. Therefore, the actual manufacturing process requires more than two processes.
The first step in manufacturing is screen printing. It means that the solder paste is printed on the pad of the PCB to prepare the components for mounting. After the solder paste is printed on, the components can be soldered. After screen printing, it will be tested to ensure the yield. After silk screen printing, it enters the SMT patch process. Its main role is on the PCB board, through the placement machine, affixed paste resistors, capacitors, IC (integrated chip) and connectors and other components.
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