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錫膏的印刷其實有點像是在牆壁上油漆一般，所不同的，為了要更精確的將錫膏重複塗抹於電路板的一定位置與控制其錫膏量多寡，所以必須要使用一片所謂的「鋼板(stencil)」來控制錫膏的印刷。
Printing the solder paste on the PCB just like painting on the wall. The only different is solder paste printing ask more accurately position and must control the solder paste volume on each pad. It requires a certain jig call “stencil” is a sheet-metal made and have designate aperture on the position that needs to print solder paste.
【What is PCB break-away and why is panelization important? 】
When you visiting the SMT line, you will find that one of the biggest "bottle neck" of SMT manufacturing is the process of solder paste printing. Because no matter what size is the PCB board, it still needs much or less 25 sec. to pasting. That's why we can do PCB panelization......
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《How to use SMT Line to produce a printed circuit board? (3)》
Into the pasta soldering phase, the paste melting and reform the surface mount and electronics components. Meanwhile the solder printing must be maintain in appropriate amount, exact angle, and correct speed. After that the circuit board will into the High-Speed pick & place machine, which is a SMT components placement system. The machine can place the small volume of electronics components in high speed and high precision way, like capacitors, resistors, and integrated circuits onto the circuit board.
In the early 1980’s the high speed pick and place machine separate in two parts: the chip shooter and the machine itself. But the huge cost and inflexibility make them develop new type of all-in-one module, multi-head, gantry machine, that can quickly swapped to different modules. Nowadays, the latest machines even has touchscreen, e-platform, graphical interface, linear motor driven gantry, and the components range can be from 01005 to 80x70 mm, board size up to 600x800 mm, and can use in many industry, such as: consumer goods, electrical industry, medical, automotive equipment.
solder paste printing 在 Solder Paste Printing Machine - Particle - Facebook 的推薦與評價
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