Through the hole plug oil is to guide through the hole with ink inside the plug hole production, the emphasis is on the quality and tightness of the plug hole. Through the hole plug oil treatment inspection standard is or light, above must have ink cover,
The role of PCB process edge: process edge is the part added on both sides or four sides of PCB board, mainly to assist the patch plug-in welding plate
pad according to pad, this is the plug-in hole, via you have two choices, if you provide the original file, you can choose when placing the order, if you provide the gerber file, please check whether the gerber file meets your requirements!
With the development of miniaturization of electronic products and high-density assembly of circuit board components, SMT production and testing have brought great challenges.
Waste PCB board environmental protection recycling line is not only in each production link, each process in strict requirements, even every detail carefully pondering.
Purpose and function: to remove the oxide on the copper surface of the line, the ink residue film remaining glue, to ensure a binding force between copper and graphic plating copper or nickel
How to ensure the quality of PCB processing: one: pressure (patch height) - patch pressure (height) should be appropriate, two: correct components - required assembly position number, three: accurate position - the end or pin of the components and pad gra
The small circuit material on the surface of PCB board is copper foil. Originally, copper foil is covered on the whole board, but in the manufacturing process, the middle part is etched away, and the remaining part becomes a network of small lines.
After years of development, the PCB industry has also extensively upgraded its processes and capabilities. Some PCBS that were previously considered exotic will soon be considered routine.
For designers, our main consideration is the minimum line width of wiring, spacing control and wiring uniformity. Because the spacing is too small will cause the clip film, film can not fade resulting in short circuit.
The size of PCB is limited by the capability of the equipment in the electronic processing line, therefore, the appropriate size of PCB should be considered in the design of the product system scheme.
Copper electroplating is one of the most widely used precoatings to improve the binding force of coatings, which plays an important role in improving the binding force and corrosion resistance between coatings.
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