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Harm of chloride ion to PCB and its treatment---from Shenzhen Vip Circuit Co.,Ltd
There are many potential sources of chloride ions in the process of PCB production.Often this situation includes hot air leveling (HASL) in the flux, the operators skin sweat and cleaning with tap water and so on.
2017-06-02
News
Introduction to PCB surface treatment process:HASL and Lead-free HASL
HASL and LF-HASL are the most commonly used process, this process is more practical, its welding performance is good, have a good antioxidant effect and the costs is cheaper than other surface treament,such as ENIG,plating gold,immersion Ag/Tin and so on
2017-05-31
News
The applications and materials of high frequency PCB
The applications and materials of high frequency PCB,currently used high-frequency material are Rogers, Getek, Taconic, Arlon and so on.
2017-05-26
News
The main factors that affect the price of PCB（2）
The PCB price will be affected by the backdrill,PCB layers,surface finished,material,min. line width/space,min. size of via and impedance design.
2017-05-20
News
The main factors that affect the price of PCB （1）
The PCB price will be affected by the quantity of processing products,the use of material and the processing technology.
2017-05-17
News
PCB impedance design and matching
PCB impedance is directly proportional to the thickness of the dielectric and the line distance, inversely proportional to the linewidth, dielectric constant and copper thickness.
2017-05-15
News
IPC standards and origin
This is IPC standard,use for PCB acceptance standard,printed circuit,Electronic assembly,OEMs, EMS.
2017-05-10
News
HDI PCB application and processing flow
HDI PCB application and processing flow,using micro blind buried hole technology.
2017-05-08
News
The causes analysis what affect PCB price difference
The cost calculation of the PCB industry is the most special and the most complicated in all industries. From blanking, laminate, forming,to FQC, packing and WIP completion, required step-by-step accounting the material cost, the labor cost, the manufactu
2017-04-27
News
Recent status of PCB material five asked five answer (including glass fiber cloth, copper foil)
copper supply and demand is directly related to the sales of new energy vehicles, based on 2017 sales forecast of 700,000, if the sales exceeded expectations or policy support greater, will further promoteIndustry chain continues upward. We need to rema
2017-04-25
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