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Technology
PCB hole sealing
Non-conductive through-hole plug Non-conductive through-hole plug 


Special materials (mostly epoxy resin) are used to seal the via holes to ensure 100% sealing. This is very commonly used in PCBs in BGA areas. Due to the limited space in the BGA area, it is not possible to add more via holes and design "dog bones". Therefore, it is necessary to drill the via holes directly into the BGA pad, and then transmit the signal from the BGA pad to the via holes, and then from the via holes to other layers/traces. We also refer to these types of pads as "active pads" and call this technology "in pad vias".
 


 advantage:

 

100% prevention of solder leakage in SMT process
 

100% prevent dust or liquid from entering the through-hole during use
 

Very good stability and reliability
 


 Disadvantages:

 

Overhead
 

PCB manufacturing should have sufficient experience and equipment









        
  • What are the common types of through-hole plugsWhat are the common types of through-hole plugs
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  • Cover the via with LPI solder maskCover the via with LPI solder mask
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  • Seal the through-hole with a solder mask layerSeal the through-hole with a solder mask layer
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  • Conductive hole plugConductive hole plug
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  • Copper plated through-hole closureCopper plated through-hole closure
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            Haibo is an expert in the field of FPC/PCB manufacturing and surface mount assembly in China. Since our establishment in 2017, we have been providing high-quality PCBs to over 1000 customers worldwide. Our factory has passed ISO14001, ISO9001:2015, TS16949, and ISO13485:2016 certifications. We are one of the most trusted small and medium-sized FPC/PCB manufacturers in China.
            
    
            
    
                
      
                    
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