Principle of AOI detection equipment
Jun. 17, 2022
AOI testing equipment, also known as AOI optical automatic testing equipment, has become an important testing tool and process quality control tool to…
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Jun. 17, 2022
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Work principle and process of PCB laser photoplotter
Jun. 15, 2022
Laser photoplotter, referred to as photoplotter, is a phototypesetting product integrating laser optical technology, microelectronic technology and ul…
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Etching process in PCB processing
Jun. 09, 2022
The process of printed circuit board from optical board to showing circuit pattern is a complex physical and chemical reaction process. This paper ana…
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About drilling in PCB production
Jun. 08, 2022
Most holes, including NPTH and PTH holes, will be drilled on the pressed plate during initial drilling. When drilling PTH hole, the diameter of the ho…
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What is HASL? What is the difference between lead-free HASL and lead tin HASL?
Jun. 02, 2022
The surface treatment of PCB striking board includes OSP, gold precipitation, bare copper, Hard zinc plating, and the most common HASL. HASL can be di…
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What's PCB layer bonding and its process ？
May. 31, 2022
In the manufacture of PCB, the lamination process usually refers to the lamination of copper foil, prepreg and the core board (inner layer) with a pre…
